Wing Inflatables P Series User manual

P-Series CRRCs
P4.2 / P4.7 / P5.3 / P5.8
OPERATOR MANUAL
Designed Smarter, Built Tougher.
Wing Inflatables, Inc.
1220 5th Street, Arcata, CA 95521
www.wing.com Phone [phone]

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MISSION CAPABLE
(Come Hell or High Water)
The Wing P4.2, P4.7, P5.3 and P5.8 CRRCs are the ideal inflatable boats for missions in which rapid deployment, high
performance, and reliability are key assets for success. Whether paddled for stealth or powered for speed, Wing’s
CRRCs are designed for a variety of military, law enforcement and scientific missions –from combat reconnaissance to
search and seizure; from boarding operations to search and rescue; from insertion and extraction of Special Forces teams
to maritime patrol, from oceanic atmospheric research to ecosystem protection . Whatever your need, we’ve got you
covered.

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Contents
IN THE BEST OF COMPANY ...............................................................................................................................................................4
ABOUT WING INFLATABLES ..............................................................................................................................................................5
Seven Key Reasons to Run One....................................................................................................................................................6
General Parts Diagram - All CRRCs...............................................................................................................................................8
Inflation Specifications...............................................................................................................................................................11
Assembly and Disassembly –Hard Deck....................................................................................................................................11
Floorboard and Thrustboard Installation...............................................................................................................................11
Inflating the Boat........................................................................................................................................................................13
Hard Deck Disassembly..............................................................................................................................................................14
Assembling the Roll-up Floor .....................................................................................................................................................14
Auto-Inflating the Boat ..............................................................................................................................................................16
Prepare CRRC for Storage and Transport...................................................................................................................................17
Inflation Specifications...............................................................................................................................................................18
Pressure Relief Valves (PRVs).....................................................................................................................................................18
Warm Weather Inflation Pressure.............................................................................................................................................19
Inflation Pressure Maintenance.................................................................................................................................................19
Outboard Engine Installation .....................................................................................................................................................20
Operational Tips on Boat Handling ............................................................................................................................................21
Wave & Wake Jumping ..........................................................................................................................................................21
Impact with Hazards ..............................................................................................................................................................22
Avoid Impact with Hazards ....................................................................................................................................................22
Impact with Underwater Hazards..........................................................................................................................................22
Beaching the CRRC .................................................................................................................................................................23
Towing........................................................................................................................................................................................23
Hoisting ......................................................................................................................................................................................24
Hoisting Sling..........................................................................................................................................................................24
Trailering ....................................................................................................................................................................................25
Cleaning the Boat.......................................................................................................................................................................26
Storage .......................................................................................................................................................................................26
Valves .........................................................................................................................................................................................27
Fill Valves................................................................................................................................................................................27
Flanges ...................................................................................................................................................................................27
Pressure Relief Valves ............................................................................................................................................................27
Valve Cleaning........................................................................................................................................................................27

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Valve Troubleshooting ...........................................................................................................................................................28
Valve Removal........................................................................................................................................................................29
Fabric Repair ..............................................................................................................................................................................30
Liquids, Solvents, and Adhesive Agents use in Repair ...........................................................................................................31
Recommended Adhesives Used In Polyurethane Repair.......................................................................................................31
“Flashing-Off” or “Drying to the Touch” ................................................................................................................................31
Damage Assessment ..............................................................................................................................................................32
New Urethane Fabric Repair..................................................................................................................................................32
Using Goop or Adhesive.........................................................................................................................................................33
Repairs Using Tear Aid ...........................................................................................................................................................34
Weathered or Coated Fabric..................................................................................................................................................35
Tears, Punctures & Large Repairs ..........................................................................................................................................35
Bonding Patches to Urethane Fabric .....................................................................................................................................36
Large Tear: Inside/Outside Patch Repair................................................................................................................................37
Field Repair/Solvent Bonding Technique...............................................................................................................................40
Emergency Field Repair with Clamshell Plug .........................................................................................................................41
Inflation & Testing of a Repaired Tube ..................................................................................................................................42
Repair Troubleshooting..............................................................................................................................................................42
General Boat Inspection.............................................................................................................................................................43
Boat Maintenance Do’s & Don’ts...............................................................................................................................................43

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IN THE BEST OF COMPANY
As an operator of the Wing P4.2, P4.7, P5.3 and P5.8 CRRCs you can be proud. You’re in the best of company, because
the craft beneath you is the finest of its kind. Wing CRRCs use the latest and best technologies available for manufacturing
rugged and durable inflatable boats. The boat(s) you’ve purchased were designed and built in the United States. Built by
highly dedicated professionals who care deeply about boating, about safety, and about the people who put their lives on
the line every day to serve their country. That’s why we set out to give you stronger, lighter, more maneuverable crafts –
crafts that will perform better and last longer than any other CRRCs in the market.
ATTENTION EXPERTS AND OLD HANDS
We know your ranks are filled with experts and seasoned
operators. They know how to drive a CRRC. They understand
what works and what doesn’t. They will quickly come to
appreciate the benefits of a Wing CRRC. Rather than getting the
“same old, same old,” your trained operators will be handed
something different: a CRRC that can handle any challenging
mission it’s asked to perform!
So how are the Wing CRRCs different? To start with, we use
better materials. Our heavyweight polyester fabric is coated with
Polyurethane. This means our boats are stronger and more
durable than other options out there. Repair and maintenance are
also easier and faster than models made from hypalon (CSM) or
other materials. Our floorboards and transoms are made from
high density, fiberglass-reinforced Polyurethane, with
fiberglass-reinforced plastic (FRP) layers on each side. This
means our transoms and floorboards are strong, flexible, and
impervious to rot or decay –lighter and stronger than either
wood or aluminum.
We’re also different because we have a unique design. Each Wing CRRC features a balance of design characteristics.
This design balance means the Wing CRRCs are versatile, allowing them to perform well in various sea conditions. They
feature comparatively high deadrise angles, for better performance and a more stable ride in rough, choppy seas. At the
same time, our main buoyancy tubes are designed for stability—forming downturned chines—to allow for a quick jump
onto plane and a smooth ride at lower speeds in calm water. Moreover, the square-bow design and broader beam translate
into more interior space –which means more room for gear and a more comfortable ride. Better performance and more
room –we think you’ll agree that these features will be tremendous assets to help you accomplish whatever mission
you’re assigned to perform!
Lastly, we’re different because Wing CRRCs are made right here in the USA. That’s right. American made. We’re
Berry Amendment compliant. That means all the fabric, rope, cords, and other components covered under the Berry
Amendment are of US origin. So we buy from suppliers who also make their products in the United States. Proudly
made in the USA by people who truly care!
Everything you need to know is right here in this manual. Assembly. Operation. Maintenance. Repair. Please read this
manual and then take your new Wing CRRC(s) out for a test drive. We’re confident you’ll see why we’re so proud of our
boats and how well they'll perform for you when you’re out there putting your life on the line in service to our country!

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“Run Hard, Run Fast—Save Some Lives. KickSome Ass.”
—Bill Wing, Founder
ABOUT WING INFLATABLES
WHO WE ARE
Wing Inflatables is an all-US owned and operated company based in Northern California. We design and produce
inflatable products out of extremely durable, US made Polyurethane-coated nylon and polyester fabrics, using thermo-
and radio frequency welding techniques. We do this with assistance from proprietary CAD software written exclusively
for our fabric’s unique and superior characteristics.
Our product range includes inflatable boats, rafts, pontoons, fuel bladders, engine bags, foam collars, and air-holding
tubes for RIBS.
This line of inflatable products is managed by a cadre of dedicated engineers, designers, and craftsmen. We can build
to any specification while exceeding any expectation—for quality workmanship, product performance, and enthusiastic
customer support. This is our commitment and our guarantee.
WHAT WE ARE ABOUT
As the largest US owned and operated supplier of inflatable tubes, sponsons, and foam-filled collars for RIBs in service
with the United States military, we know what floats your boat. We’ve got your back. We build each tube and inflatable
boat with the same attributes found in our military, law enforcement and research professionals: strength, reliability,
durability, and unwavering commitment.
OUR MISSION
Our mission is to enable our nation’s military, law enforcement, first-responders and scientific researchers to perform
difficult and demanding operations with confidence and safety, by employing the finest inflatable boat in the world.

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WING CRRCS −TOP OF THEIR CLASS
Seven Key Reasons to Run One
#1 Polyurethane vs. hypalon. A polyester scrim coated with Polyurethane not only gives the Wing CRRC superior
tear, puncture, and abrasion resistance compared to hypalon (CSM) and PVC, the 1680 denier thread count adds
stiffness as well.
Consequently, an
inflated Wing is
more rigid yet
lighter than boats
made with lesser
materials. A
lighter, more rigid
boat is a faster,
more
maneuverable,
more efficient boat
to run.
#2 Thermo-
welded vs. glued
seams. Thermo-
welding bonds two
pieces of coated
fabric together as if
they were one.
Molecularly fused
using heat (not
adhesives as with
hypalon), welded
seams are far more
reliable than glued
seams. Expect a
greatly extended
service life and a
much longer shelf life for boats in long-term storage with welded seams over glued seams.
#3 FRP Composite transom and floorboards vs. plywood/ aluminum. FRP composite is nonabsorbent so it won’t
rot or decay. It is lighter than wood or aluminum and has a superior strength to weight ratio.

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#4 Tapered tube bow. Our tapered side tubes and squared-off bow creates 20% more usable hard-deck space in the
bow. On the outside, the squared-off bow directs air down into the V-hull assisting with lift and planing.
#5 Wing’s “V-Hull”design vs. lower buoyancy tubes (LBTs). With or without a load, the Wing CRRCs get up on a
plane fast—faster than the
LBT-equipped
competition. Eliminating
these unnecessary LBT’s
results in: less weight,
less draft, less drag, a
reduced wake profile, and
less stuff to go wrong.
The four-inch deadrise
from our main buoyancy
tubes (MBT) to the fabric
floor creates a tunnel
effect that assists in lift at
higher speeds.
#6 Dimensionally the
same as current in-
service CRRC models.
For all the increased
performance, the Wing
CRRCs are identical bow
to stern, and port beam to
starboard, as the current
in-service CRRCs. Our
basic models weigh less
as well, so it will easily
match, fit, lift, install,
launch, trailer, or stow for
any mission, anywhere.
#7 Berry Amendment compliant. The Wing CRRCs are proudly made in the USA by skilled workers who care deeply
and passionately about the quality and performance of this unique craft as well as the special people who are called
upon to operate it during their missions.

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General CRRC Parts Diagram
1. Main Buoyancy Tube (MBT) –Primary inflatable structure of CRRC
2. Lifting Handle –Heavy duty handle placed on the outside of the MBT to enable the craft to be carried
3. Transom –Composite Structural beam at the stern on which an engine can be mounted
4. Inboard Lifeline –Line attached inboard on MBT
5. PRV –Pressure release valve
6. Fill Valve –Manual inflation valve
7. Fill Valve Cap –Protective cover for fill valve/redundant air seal
8. Seam Tape –1” of Polyurethane material laid over welded seams
9. Paddle Holders –Secure paddles to MBT (certain models)
10. Main Thrust-board –FRP composite board near bow affords longitudinal support and provides attachment and
hoisting platform.
11. Floorboard Joiner –Aluminum extrusion mating two floorboards together
12. Air Chamber Crossover Valve For Single Point Inflation –Bypasses MBT baffle
13. Auto-Inflation Port –Valve where hose from inflation cylinder plugs into tube
14. Composite Hard Deck Floorboard –Creates hard deck surface (Number of floorboards depends on CRRC)
15. Bow Skirt –Protective laced in cover

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16. Cone –Stern end of MBT
17. Thermo Welded Seam –Two pieces of fabric Polyurethane fabric permanently fused using heat or RF welding
18. Rope Ring/D-ring combo
19. Grommet Strip –Strip of grommets along top of MBT
20. Rubstrake/Marley –Reinforcement material in high-wear area along the MBT
21. Heavy duty D-rings –Attachment points for mooring or towing
22. Sheet Floor –Polyurethane coated polyester forming CRRC hull
23. Keel –Inflatable tube running fore and aft giving form to fabric hull
24. Bottom Chafe –Extra layer of Polyurethane material in high-wear areas
25. Outboard Lifeline –Line attached outboard on MBT
26. Rubstrake/Marley cone end –Reinforced Marley abrasion material in high-wear area
27. Oval Transom Chafe –Fabric reinforcement for strength and stress-mitigation
28. Forward Thrustboard –FRP composite board forward of Main thrustboard affording additional longitudinal
support
29. Transom Motor Mount Plate –Metal plate attached to transom
30. Keel Fill Valve –Manual inflation valve

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31. Floor Velcro strip –Attached to floor to mate with Keel Velcro strip
32. Floorboard Cleat –Retainer to prevent floorboard lift
33. Bulkhead/Baffle –Fabric wall creating separate chambers in MBT
34. Keel Velcro strip –Attached to keel for proper alignment of keel to floor
35. Gusset Joiner –Crescent shaped aluminum, mating two boards, along with main Joiner, for stiffening floorboard
assembly. Used for heavy load operations.
36. Towing/Lifting Eye –Dual-sided steel eye for towing and lifting
37. Sacrificial Plate –Attached to rear of transom
38. Bow Lifting Eye –Attached port and starboard side of main thrustboard
39. Scupper Drain –Allows water passage from inside to outside of CRRC
40. Transom Spray Deflector –Outboard of transom to minimize splash

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Inflation Specifications
The Wing CRRC Main Buoyancy Tube is rated for normal operating pressure of 4.4 psi with ability to run up to 5.0 psi
with heavier loads. Each chamber is equipped with a Pressure Relief Valve (PRV) to ensure over-inflation does not
occur. However, over-inflation can occur if the PRV fails or is intentionally blocked. Use the supplied pressure gauge
to ensure each air chamber is properly inflated. Operating the boat below the designed working pressure of 4.4 psi or
above the PRV reseat pressure of 5.0 psi can cause performance issues and may damage the boat or pose a safety risk to
passengers. To avoid risk, always operate the boat with the MBT in the normal operating pressure range.
Minimum inflation pressure:
Main Buoyancy Tubes
4.4 psi (303 mbar)
Keel
4.4 psi (303 mbar)
CAUTION: DO NOT UNDER-INFLATE!
Assembly and Disassembly –Hard Deck
Floorboard and Thrustboard Installation
1. Unpack the boat.
Roll it out on a clean, flat surface.
2. Remove and inventory components.
A first “dry-run” assembly, with all parts in order, will quickly familiarize you with
your parts and greatly facilitate placing theitems intoyour CRRC. Remove floorboards
(main floorboards; optional bow boards if ordered , step #11), thrustboard (s), joiners,
joiner gussets, and all hardware from the box. Lay out, alongside the boat, all
floorboards and assembly parts on a tarp or clean flat surface next to the boat, in the
proper order. Ref Drawings on page 8, 9, 10 &11.
3. Open cross-over valves and partially inflate the boat from the stern.
Partially inflate both sides of the boat, until the tube takes shape, but no more than
approximately 50%.
4. Ensure that the keel is properly positioned.
With the keel uninflated, center the keel Velcro with the floor Velcro, and that the keel
is fully inserted into the ends of the stern and bow keel pockets, and that the keel
retaining straps are loosely tightened around the keel. It’s important not to constrict the
keel with the lacing straps, once inflated. If in doubt, inflate the keel to verify position
and tightness of straps, then deflate the keel before the floorboard installation.
5. Insert aft floorboard section into transom batten.
Slide the aft floorboard (with cut outs placed facing transom) under the rear
floor cleats and into the floor battens on the transom. Press down on the floor
(either with your hands or by standing on the board) to ensure the floorboard
is underneath the floor retention cleats (Under the two aft 6”cleats and

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halfway under the two 18”cleats at the forward edge). Ensure that the
floorboard is pressed all the way to the transom and sits snuggly in the battens.
Wing Tip: Spraying the groove between MBT, cleats, boat bottom,
and along the surface of the keel, with soapy water (from a spray
bottle or damp rag not provided) reduces friction and allows for
easier installation of floorboards.
Wing Tip: Sit inside the boat and evenly press the board with your
feet towards the transom.
Wing Tip: Have a partner(s) help pull the partially inflated MBTs
slightly outward to help with floorboard install. If you are installing
the deck alone, pushing against the MBT on one side with your back
and the opposite side with your feet can also help.
6. Install aluminum gusset joiners.
Attach aluminum joiner gussets to both sides of floorboard, pressed tight against
each edge of the board, straight section outboard/curved inboard. Wing Tip: if the
fit is overly tight between the joiner gussets and the board, it can be easier to install
the gussets to the board prior to installing the board into the boat.
7. Install aluminum joiner.
Center and attach one long aluminum joiner (P5.3 & P5.8 have wider joiners) to
the leading edge of the aft floorboard.
8. Install 2nd floorboard.
Using a similar technique as in Step 5, slide the next floorboard section into
position, making sure it fits under the floor retention cleats, and is firmly seated in
the joiner. Wing Tip: ensure that each main board slides all the way to the rear,
and the gaps between boards-joiners-gussets are reduced as much as possible to
minimize “stacking” errors (i.e. cumulative gaps) in the final assembly. To aid with
this, webbing or cord can be used to pull the floorboard rearward, using the pad
eyes on the floorboards.
9. Repeat steps 5 through 7 for main floorboards 3 and 4 up to thrustboard.
Joiner gussets are not used between the fourth main floorboard and the thrustboard.
10. Slide the thrustboard into place.
Insert thrustboard (longest length aft) into the most forward main floorboard joiner
as shown, and pull rearwards into the joiner. Align the outboard attachment holes
in the thrustboard with holes in the fabric attachment flap. Do not yet install the
bolts through the thrustboard flaps. The thrustboard bolts will be attached later
(Step 15) after the entire floorboard system is installed and the MBT’s and keel are
inflated. For now, simply ensure that the holes for the hardware in the thrustboard
approximately line up with those in the thrustboard flap.

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11. Install the forward bow board and joiner (model specific).
If your CRRC was purchased with a forward bow section or if you ordered as a
separate the forward bow section as a separate accessory item, center and snuggly
seat the smallest joiner onto the widest edge of the forward bow board, and place
the combination forward into the boat.
12. Install the second (middle) bow board and joiner.
Center and snuggly seat the 2nd smallest joiner onto the widest edge of the second
bow board, center the board relative to bow board one, and press the combination
forward into the bow board one joiner.
13. Install the third bow board and joiner.
Center and snuggly seat the appropriate joiner onto the widest edge of the third
bow board (board with cutout for fill valves), and place the combination forward
into bow board two. Verify that the position of the keel fill valves fits in the
cutout of bow board three. Reposition as necessary.
14. Final install of bow boards to thrustboard.
Ensure all air is out of the keel. Ensure the main floorboard and thrustboard
assembly is pressed all the way to the stern, and minimal gaps between boards,
joiner and joiner gussets. Verify the forward bow board assembly (3 boards, 3
joiners) is centered and pressed forward. While kneeling to the rear of the
thrustboard, use the Floorboard Pry Levers (P5.8 CRRC only). The bow board
assembly and the rear joiner of bow board three should be resting on the
thrustboard. Slide the Pry Levers under the aluminum joiner (Pry Lever handle to
the stern) and slowly lift up and lever the handles towards the bow. Wing Tip: As this motion takes place, it helps to
have a partner gently step/press down on bow three board and slightly lift the forward edge of the thrustboard.
Caution: Excessive force should not be required if proper technique is used. Be careful with over torqueing the edges
of the levers against the floorboard edges. Included in the install kit are Pry Plates to protect the edges of the
floorboards, if needed.
15. Install Hardware (4 bolts & washers).
Place washer on top of attachment flap hole and insert threaded bolt into
thrustboard hole. Hand tighten only.
Inflating the Boat
1. Open all cross-over valves, making sure that the “pin” sets into the
notch.
2. Insert inflation hose. Insert the inflation hose fitting into valve stem in stern chamber (either port or starboard).
3. Fully inflate the MBT chambers until PRVs release and reseat.
4. Inflate keel to 4.4 psi. When the MBT has been fully inflated, if the auto inflation hose is
connected to the keel, it too will inflate to the MBT pressure. The keel will be the last to
inflate, so it may need a few extra seconds to match the pressure of the MBT. KEEL DOES
NOT HAVE A PRV. If you independently inflate the keel and do not use the auto fill hose,
be careful not to overinflate the keel.

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5. Tighten Thrustboard bolts. Using ½” wrench or crescent wrench, tighten bolts firmly.
Be careful not to over tighten.
6. Close all cross-over valves and keel inflation hose valve.
Hard Deck Disassembly
1. Deflate keel.
Deflate keel by removing inflate/deflate valve cap, depress yellow valve stem to deflate (depress yellow valve stem and
rotate clockwise to lock the valve in the open position, depress and rotate valve stem back again to close). Push on keel
until air is evacuated.
2. Partially deflate one side of MBT.
Deflate one side of MBT to approximately 50% by removing inflate/deflate valve cap, depress the yellow valve stem to
deflate. Depress the yellow valve stem and rotate clockwise to lock the valve in the open position, depress and rotate
valve stem back again to close. Release more air if necessary.
3. Fully deflate opposite side.
Deflate other side of MBT to the point where most of the air has been released (same process as Step 2).
4. Remove thrustboard.
Remove thrustboard by unscrewing attachment bolts. Use ½” wrench. Unscrew the 4 bolts attaching the thrustboard to
the thrustboard attachment flaps (2 per side), lift thrustboard flap, and reinsert bolts and washers into the threaded inserts.
5. Remove forward joiner and floorboard sections.
Remove forward joiner and floorboard section. Repeat process until all floorboards are removed. Make sure all parts,
tools and hardware are accounted for.
6. Deflate boat completely.
Deflate boat completely. Using a Shop Vac (if available) speeds up this process.
Assembling the Roll-up Floor
The Wing P-Series crafts (P4.2, P4.7 & P5.3) come with optional slatted
roll-up floors. The aft end of the floor is secured at the transom by a
grommet and lace system. The front end is secured at the main thrustboard
by means of a threaded bolt and washer. A forward thrustboard is installed
for additional bow support. A bow skirt is provided to cover the bow area.
The bow skirt is secured to the main thrustboard and to a grommet and lace
system in the bow.

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1. Open crossover valves and partially inflate boat from the stern.
Partially inflate both sides of the boat, until the tubes take shape (no more than 50%).
2. Insert main and forward thrustboards.
The forward thrustboard and hardware comes only in the roll-up floor kit. If you
are installing the hardware for the first time, the hardware installation will take
place after inflating the MBT.
Note: In using the Wing Roll-up floor system, the three bow boards of the hard
deck assembly (certain models only) are typically not used, but may be if desired,
and replace the forward thrustboard.
3. Spread tubes.
Have your partner pull the partially inflated tubes out to expose the floor retention
cleats.
4. Insert floor.
With a partner, lift the roll-up floor and place it into the boat. Make sure the floor
is oriented correctly –aft end has the grommet strip and inflation cylinder
attachment system.
Wing Tip: Spraying soapy water along the groove between tube and boat
bottom, along the underside surface of the roll deck and on the top of the keel,
reduces friction and allows for easier installation of floorboards. An alternate
method is to use cloth soaked in soapy water solution.
Wing Tip: Have a partner(s) help pull the partially inflated MBTs slightly outward to help with floorboard install. If
you are installing the deck alone, pushing against the MBT on one side with your back and the opposite side with your
feet can also help.
5. Position roll-up floor.
Pull roll-up floor aft until it is seated firmly in the stern. Ensure floor is positioned under all of the floor retention cleats.
6. Attach floor to transom.
Align grommets with holes in transom batten. Attach floor to transom batten by
lacing it through the holes. Tie a knot to complete the process. Tie a knot, such as
a bowline, to complete the process.
7. Insert inflation hose and inflate using “Inflating the Boat” steps.
Insert the inflation hose fitting into the valve stem in stern chambers.
8. Attach floor to main thrustboard.
Align attachment holes in attachment flap with corresponding holes on the thrustboard. Place washer over attachment
hole and insert bolt into threaded hole on the thrustboard. Hand tighten bolt. Using ½” wrench, tighten bolt. Avoid
over-tightening. Repeat process with the other side. The main fabric floor attaches using the two aft inboard bolts of the
main thrustboard. The bow fabric floor attaches to the two forward inboard bolts
9. Attach bow skirt.
Place washer over attachment holes and insert bolt into threaded hole on the thrustboard. Hand tighten bolt. Using ½”
wrench, tighten bolt. Align holes in bow, lace through the holes. There are several ways to lace the floor down, with the
simplest being to run the lacing through alternately over the top, underneath, then back up over the top, etc. Tie a knot
to complete the process.

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Auto-Inflating the Boat
The Wing P-Series Auto-Inflation models use a unique cross-over valve system that allows the boat to be inflated with
compressed air or CO2 via two inflation valves located in the stern of the boat, port and starboard. The cross-over valves
allow air or CO2 to flow from one chamber to the next until the boat is fully inflated. Each cross-over valve can then be
closed, isolating each chamber and therefore minimizing loss of pressure should an individual chamber become
compromised.
1. Attach inflation cylinder.
Attach the inflation cylinder to the floor by placing it in the fabric cradle and
tightening the straps around the tank.
2. Attach Regulator.
Attach the regulator assembly with inflation hoses to the inflation cylinder.
3. Insert inflation hose fittings.
Insert inflation hose quick disconnect fittings into inflation valves on each side of
the boat.
4. Install the Auto-inflate keel hose.
Connect to the keel hose to the auto-inflate port on the keel in the bow. Hard deck
model in the floorboard cut out. Roll-Up floor model under the skirt flap. Then
attach the other end to the MBT fill port on the starboard side of the MBT. Open
the keel hose valve by turning the T-valve in line with the hose.
5. Open cross-over valves.
Open each cross-over valve by pulling and turning the knob clockwise ¼ turn.
“Ensure knob remains in the open (out) position”. This is done by “setting” the pin
into the notch.
6. Inflate.
Begin inflation by gradually turning the regulator valve until approximately one
turn is reached. The boat will inflate rapidly, as the MBTs progressively fill from
stern to bow, with the keel filling last. Continue inflation until the first PRV
releases. Turn the regulator valve to the off position. Allow the boat to equilibrate
to not waste air from the tank. Then, open the regulator valve again.
7. Begin to close regulator valve.
Gradually begin to close the regulator valve when all the PRVs begin to release air.
When this happens, close the valve completely.
8. Check MBT and Keel pressure to ensure they are at the minimum operating
pressure of 4.4 psi, adjust if necessary.
9. Close cross-over valves.

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10. Close and disconnect (operator’s choice) the keel hose valve at both the keel and MBT.
Prepare CRRC for Storage and Transport
It is necessary to deflate the CRRC completely when preparing it to be
rolled up for storage or transportation in the supplied carrying bag. If
deflating the CRRC for long term storage, make sure to clean the CRRC
using soapy water. Rinse well with clean water and let dry prior to
deflation.
1. Remove hard deck and main thrustboard.
Set hard deck panels, joiners, gussets, thrustboard and hardware aside. If
roll-up floor, remove inflation cylinder and set aside. The roll-up floor,
bow skirt, main and forward thrustboards can all stay in the boat.
2. Open inflation valves.
Unscrew inflation valve covers and turn valve stems until they are locked
in the open position.
3. Open inflation valves.
Put pressure on the MBT to force air out the valves. Continue putting
pressure on each chamber of the MBT until all air has been evacuated. A
Shop-Vac can be used to speed up the process.
4. Unlock valve stems and replace valve covers.
5. Pull MBT up and into the center of the boat.
Fold the transom forward, into the boat.
6. Roll the boat transom toward the bow.

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7. Roll the boat into a tight bundle.
Place boat into its storage carrying case and secure the straps.
Inflation Specifications
The Wing CRRC Main Buoyancy Tube is rated for normal
operating pressure of 4.4 psi with ability to run up to 5.0 psi with
heavier loads. Each chamber is equipped with a Pressure Relief
Valve (PRV) to ensure over-inflation does not occur. However, over-inflation can occur if the PRV fails or is
intentionally blocked. Use the supplied pressure gauge to ensure each air chamber is properly inflated. Operating the
boat below the designed working pressure of 4.4 psi can cause performance issues and may damage the boat or pose a
safety risk to operators. To avoid risk, always operate the boat with the MBT and keel in the normal operating pressure
range.
Minimum inflation pressure:
CAUTION: DO NOT OVER-INFLATE!
WARNING: DO NOT UNDER-INFLATE MAIN BUOYANCY TUBE.
Proper inflation of MBT is critical for optimum boat performance.
Under-inflation can result in excessive tube flex, causing fabric stress and a shortened service life. Always
inflate to 4.4 psi or until PRVs release.
WARNING:
While inflating, do not leave inflation devices unattended! Pressure Release Valves (PRVs) may not
purge fast enough to prevent over-inflation. Over-inflation can cause tube rupture or catastrophic valve
failure, resulting in property damage, serious injury, and even death.
Pressure Relief Valves (PRVs)
PRVs are calibrated to release air at 4.7 –5.0 psi and reseat at 4.4 psi.
While the main buoyancy tubes are rated at a recommended normal operating pressure, 4.4 psi (303 mbar), the inflation
limits of Polyurethane-coated polyester far exceed these recommendations.
Approaching these limits, catastrophic valve failure may occur before material failure resulting in flying metal pieces in
the vicinity of the boat.
Main Buoyancy Tubes
4.4 psi (303 mbar)
Keel
4.4 psi (303 mbar)