Buzzard Models FOKKERish User manual



FOKKERish  

Available from buzzardmodels.com

Please read and understand all steps to these instructions before beginning assembly. This plane is not a
toy and is potentially dangerous to operate. Children should not operate this aircraft without adult
supervision. Before you start, it may be a good idea to gather the required items to complete this plane. You
will need a sharp knife, some foam-safe glue, a sanding block, and some hinge tape. At the end of the
instructions you will find a list of the recommended electronic hardware.

Assemble firewall- locate the firewall,the three gear attach doublers, and the two landing gear legs. Glue together as
shown with 5min epoxy.

Assembly fuselage sides - Locate and glue the two fuselage side doublers into place, I like to use 3M super 77 spray
adhesive for this. Glue the two plywood upper wing attach struts into place with a small amount of 5min epoxy.

1

Install formers - Glue into place the three 3mm foam fuselage formers, and the servo tray.


Join fuselage sides - Do a dry run first. Sand a bevel in the rearmost vertical edges of the fuselage sides so
the come together at an approx. 3mm width at the rudder mounting point. This will be beveled later to form
the rudder hinge. Glue the two fuselage sides together using a slow curing and lightweight glue like an
alphatic resin glue, 30min epoxy with microballoons, slow foam safe CA with accelerator, or a polyurethane
glue. I like to use blue painters tape to hold everything together until the glue dries.


Install fuselage bottom - Again do a dry run first, then glue the fuselage bottom to the sides with your
favorite slow and light glue.







2

Install firewall - Glue firewall in place with a strong glue.


Install control horns and elevator joiner - Sand an approx. 45deg. bevel on the rudder hingeline on the
opposite side as the control horn notch (LH side). Glue the rudder control horn into the slot on the other side
(RHside). Glue the bamboo elevator joiner into place and the elevator control horn (the one with the notch).


Install horizontal - place one of the 12” music wire pushrods into middle hole of elevator control horn. Slide
pushrod into fuselage as you install the horizontal. Glue horizontal to fuselage. Slide rudder pushrod into
place as well.







3

Install servos - center servo horns and install the short 6” music wire pushrods into the center servo horn
hole, glue servos into place. Route servo wires down though servo tray. Slide the two pieces of heat-shrink
over the ends of the pushrods, do not shrink or glue yet.



Install middle wing - Make a cut on each of the middle wings with a hobby knife. Flex wing around cut to
allow it to slide around the plywood upper wing strut. Glue both wings into place.



Install fuselage top - glue fuselage top into place.






4

Glue upper and lower wing halves together - Glue center of upper and lower wings. Glue bamboo rods to
the outer wing struts.



Install upper wing - Slide outer wing struts into middle wing.vAssemble upper wing to fuselage struts and
outer wing struts and flip entire plane upside down. Place the 4” width of the alignment block unter the
horizontal stabilizer. “Tack” glue upper wing to fuselage struts and outer wing struts, and the outer wing
struts to the middle wing. Later you will glue these joints all of the way once you set the dihedral.



Install wing struts - Pierce fuselage sides at F1 intersection with diagonal wing strut bamboo skewers and
continue through outer wing strut middle wing intersection until the inboard end will clear the lower wing.
Glue ONLY the inboard end inside the fuselage.



5

Install lower wing - Glue lower wing to fuselage and tack glue to outer wing struts, let dry. With the
fuselage still upside down, place upper wing on dihedral jig, rotate the alignment block to the 5” width.
Push wing down until it conforms to the dihedral jig. Glue outboard ends of wing diagonal struts, once dry
trim outboard end of diagonal struts flush and add glue to all of the wing/strut intersections.


Install rudder - Slip rudder control horn over rudder pushrod into middle hole. Use a small piece flexible
tape on each side to form the hinge. A small piece of packaging tape will work. Now is also a good time to
glue on the tail skid.


Install speed controller, trim cowl, install motor - zip tie speed control to firewall either front or back.
Trim cowl and cut holes for motor mount screws and wires, put spacers on backside of cowl (you can make
retention washers from scraps you cut off the cowl, screw in place.




6

Install motor and wheels - Screw motor and cowl in place. Attach wheels with retainers, make a tool out of
a small block of wood with a ⅛ hole in it to push the retainer on by centering it over the hole.

Install receiver and battery - Now is the time to check your CG, make sure everything is done that may add
weight (paint, pilot, decals etc.). Install your prop, plug servos and speed controller into receiver, install a
battery and check your CG on the middle wing, it should be about 25% to 33% of the way back from the
leading edge. Move your battery around until you are happy with the CG or alternatively you can add tail
weight. The best location for durability is to have your battery velcroed to the firewall.

Finish controls - bind the receiver to your transmitter and power up the plane. Make sure your trims are all
centered, position the rudder and elevator so they are perfectly neutral. Shrink the heat shrink tubing over
the two halves of the pushrods with a soldering iron, or even a butter knife that you have heated up will
work. Test the controls and once you are satisfied that they are centered, wick some super glue into the
heat shrink to lock them in place. Rudder and elevator should travel approx. 45 degrees each way.

Go Fly- Have fun! Try to do the maiden in zero wind. This plane is not intended to fly in any wind.


7

RECOMMENDED HARDWARE

Hardware:

Motor: Any of the 250 series outrunner motors should work. Something in the 1000 to 2000kv range and around 15 to 20
grams in weight. You really want a low KV motor so you can swing a 9” or 10” prop.

Prop: A 9 or 10 inch prop with very low pitch, 3.7” or 3.8”

Speed control: Brushless 6-12 amp with BEC

Servos: Any micro servo around the 3.7 gram size.

Receiver: Needs to have at least three channels.

Battery: Any 2S lipo in the 400-600mah hour range.

Charger: Any charger that is capable of charging a small LiPo
battery

Transmitter: You will need at least three channels, throttle,
elevator, and rudder.

Transmitter setup: Refer to your transmitter’s instruction
manual for all settings.
1. Setup should result in 45 degrees of maximum
deflection for rudder and elevator.
2. Set exponential for rudder at 30%, and elevator at 50%.

Final Checklist:
1. Center of Gravity at between 25% and 33% behind leading edge of middle wing.
2. Check controls for proper direction and free movement.
3. Charge battery.
4. Range check transmitter, refer to transmitter instructions.

Flying Tips: The Fokkerish has a rather low wing loading and does not like much wind.
For your first flight, I would recommend flying either in a large indoor area such as a gymnasium, or wait for a dead
calm day outside. Once you get comfortable with the flying characteristics you will be able to fly in much smaller
areas, and outdoors in more wind.
8


9