Madcow Rocketry AGM 33 PIKE User manual

Specications:
Length: 43.5”
Diameter 2.6”
Weight: 40oz
Recovery: 30” Nylon Chute
Motor Mount: 38mm
Fins: 6 - 3/32” G10
CP: 32.5” from nose tip
Parts List
1. (1) Fiberglass nose cone
2. (1) G10 nose cone bulk plate
3. (1) Pre-slotted body tube
4. (2) G10 centering rings
5. (1) 38mm motor tube
 6. (6)G10ns
7. (2) Eyebolts (4) nut, (1) washer
8. (1) Nylon shock cord
9. (2) Rail Buttons and Screws
Optional Recovery System
 1. (1)9”x9”ameproofchuteprotector
2. (1) 30” Nylon chute
Required to complete: 5 minute epoxy,
120/220sandpaper,maskingtape, nishing
ller/paint,RubbingAlcoholforcleaning.
™
K-174
898666 00174 1
®
ALL FIBERGLASS
AGM 33 PIKE

2     ©2012MadCowRocketry™ AGM-33PIKE™Assembly AGM-33PIKE™Assembly   ©2012MadCowRocketry™ 3
Please make sure you read all directions and understand how to assemble your model
beforeyoustartconstruction.Itisalsoagoodideatotestteachpartbeforeassembly.
Fiberglass parts still contain small amounts of mold release and other materials on the
surfacethatwillinhibitadhesivesand/orpaint.Itisimportanttocleaneachpartprior
to assembly with a solution of 1 part rubbing alcohol, 3 parts water and a drop of dish
washingsoap.IMPORTANT:donotsandanypartsuntilafteryouhavecleanedthem-
youwillembedthematerialsyouaretryingtocleanmakingitdifculttoclean.
TheG10partswillhaveholdingtabsleftoverfromtheCNCmachine.Thesesmalltabs
will need to be sanded off before assembly. Before assembling any part with epoxy,
roughupthesurfacetobeepoxiedusingcoursesandpaper.ThescratchesintheG10
surface will give the epoxy something to grab onto.
Step1–MotorMountAssembly
Testtthecenteringringsoverthemotormounttubeandsandifnecessary.Alsotest
tthecenteringringsinthebodytubeandsandifnecessary.Takeoneofthecentering
ringsanddrilla1/4”holefortheeyebolt.IMPORTANT:makesuretheholeiscentered
between the inner and outer edge of the ring so the nut on the eyebolt will not interfere
withthebodytubeormotortubelater.Theringwiththe1/4”holeforaneyeboltwillbe
the forward ring. Mount the eyebolt using the two nuts as shown in the forward ring hole.
Applysomeepoxytothenutstoensuretheywillnotcomelooselater.IMPORTANT:
Make sure the eyebolt and nut are aligned properly so the motor assembly can
slide into the body tube.
Spread some epoxy on the outside of one end of the motor tube and slide the ring
(without the hole) until there is approximately 1/2” of motor tube exposed. Make sure
youcleanthemotortubeofanyepoxysoasnottointerferewiththentangslater.After
the aft ring is dry, make a mark 1” from the other end of the motor tube. Spread some
epoxy on the motor tube and slide the forward ring until it aligns with the mark. VERY
IMPORTANT:
make sure
there is not
any epoxy on
the motor tube
that would
interfere with
the n tangs
later on.
Attachoneend
of the shock
cord to the
eyebolt using an
overhand knot.
Step4–RailButtonAttachment
Mark the CP point along the rail button line you made in the previous step. Make sure
youmeasuretheCPpointfromthetipofthenoseconeandNOTtheendofthebody
tube.Drilla5/64”holeontherailbuttonlinefortheforwardandaftrailbuttons.Theaft
hole should be 1” from the aft end of the body tube and the forward hole should be at the
CPpoint.Applyasmallamountofepoxyintheholesandattachtherailbuttonsusing
the supplied #6 wood screws. Make sure the screw is loose enough for the rail button
to spin freely - this ensures the button is not compressed to the point it will hang on the
rail guide. IMPORTANT: The screw from the forward rail button should be behind
the forward centering ring. If it isn’t, make sure the forward rail button screw
protruding through the body tube doesn’t snag the chute. Epoxy over the screw
to provide a smooth surface. The screw can also be cut shorter.
Step2–InsertMotorTubeAssemblyintoBodyTube
Wrap the shock chord into a small bundle and stuff it inside the motor tube for this next
step.Testtthemotortubeassemblyintothebodytubetoensureasnugt.Sandthe
centeringringsifnecessary.Whenyouaresatisedwiththet,spreadsomeepoxyon
the inside of the body tube and slide the forward centering ring of the motor assembly
into the body tube. Make sure you have the motor assembly facing the right way!
Spread some more epoxy on the inside edge of the body tube before sliding the rear
centering ring into the body tube. Continue sliding the assembly inside the body tube
untiltheaftendofthemotortubeisevenwiththeaftendofthebodytube.It’sagood
ideatotesttanineachslothere
before the epoxy sets. Hold the body
tube with the motor tube assembly down
until the epoxy sets. Make sure the
weightofthemotorassemblydoesn’t
cause it to slide out of alignment.
Step3–FinAssembly
Using a door jam or small section of angle stock, pencil a line halfway between two of the
nsthatextendsfromthefronttothebackofthebodytube.Thislinewillbeusedlater
toaligntherailbuttons.Testteachofthensintotheprecutnslots.Thenshould
seatrmlyagainstthemotortube-sandeachnifnecessary.Whenyouaresatised
withthet,applysomeepoxytotheendofthentangthatwillcontactthemotortube.
Also,spreadathinlayerofepoxyoneachsideofthentang.Slidethenintoplace
andcheckthealignment.Continuerecheckingthenalignmentuntilyouaresurethe
epoxyhasset.Cleananyexcessepoxyfromaroundthenjoint.Youcanclampsome
woodplankstotheforwardandaftnstokeepthemalignedwitheachotherwhilethe
gluesets.Repeatfortheremainingns.Next,applyepoxylletstobothsidesofeach
nbyapplyingathinbeadofepoxyatthen-bodytubejoing.Carefullysmooththe
epoxylletswithyourngerbeforetheepoxysets.Alloweachllettosetbeforerotating
theairframeforthenextllet.
Step5–BalanceandNoseConeAssembly
Mount the remaining eyebolt using the nuts and washer in the nose cone bulkplate.
Applysomeepoxytothenutsoitwillnotcomelooselater.Testtthebulkplateinthe
baseofthenoseconeandsandifnecessary.Atthispoint,packthechuteandassemble
therocket.Insertthelargestmotorthatyouintendtoy(orsimulatetheweightwithan
appropriate substitute) and ensure that the CG is at least 1 body diameter in front of the
estimatedCPpointspeciedontherstpage.TheCPshouldbemeasuredfromthetip
ofthenosecone.IftheCGistoofarback,addweightinsidethenoseconeandsecure
withepoxy.WhenyouaresatisiedwiththeCG,epoxythebulkplateintothebaseofthe
noseconeleavingatleasta1/4”liptoapplyallet.Next,applyalletofepoxyaround
the bulkplate and nose cone shoulder joint.
Step6–FlyingYourModel
Attachtheendoftheshockcordandtheparachutetothenoseconeeyebolt.You
can also attach the chute protector to the shock cord just below the nose cone. When
packing your chute, wrap the chute protector around the chute with the opening in the
chuteprotectorfacingforward.Alwaysmakesureyourchuteiswellprotectedasthehot
ejection motor gasses will melt the nylon chute.
1/2” Exposed
1” Exposed
Forward Ring Hole
Fin
FinTang
Ensureringsareclearofthenslots

IMPORTANT: always use positive motor retention to secure the motor in the motor
tube. Failure to use motor retention may allow the motor to be ejected during the
ejection charge instead of the parachute, making for a dangerous ballistic reentry.
IMPORTANT: always remember to check your balance point and ensure your CG
is at least 1 body diameter in front of the estimated CP.
IMPORTANT: Always follow the NAR safety code and remember that rockets
are not toys and can be dangerous if not prepared and used properly. If you
are a beginner, it is a good idea to y with a club or other group of experienced
rocketeers until you have gained some experience.
IMPORTANT: In no event shall Madcow Rocketry be liable for any direct, indirect,
punitive, incidental, special consequential damages whatsoever arising out of
or connected with the use or misuse of it’s products. The buyer assumes all
risk and liability resulting from ANY use of any and all products sold by Madcow
Rocketry. Your purchase and use of any Madcow Rocketry product constitutes
your agreement to and acceptance of these terms. If you do not agree to these
terms and conditions, you must return the unused product in resalable condition
for a refund or credit.
IMPORTANT: Please contact us via phone or email if you have any questions about
constructing or ying your model.
 24338ElToroRd#E-134
 LagunaWoods,CA92637
949.547.8847
www.madcowrocketry.com
©2006 MadCow Rocketry™
®