schwerpunkt
schwerpunkt
Hallo Armin,
anbei Auszug aus der BA. Sckick mal Deine mail Adresse dann bekommste die ganze BA als pdf
Gruss Peter
Preparing for Flight
When programming your radio for the first time, makesure controls are centered and throws are reduced for
initial turn on of the receiver to avoid pushing surfacespast their design limits.
Use an ammeter to minimize current drain as you set
up servo throws. If a servo binds, you will see an immediate
increase in amperage.
See Appendix C for a suggested approach to test flying
your Cougar.
Special Note for Split Flaps: If you intend to put allfour flaps on a single matchbox, you will need to usean extra long servo arm to achieve enough throw onthe split flaps to match the movement of the wingflaps. You will need to program the wing flaps first,
measure the movement of the split flap spindle, andcalculate the length of the servo arm needed to getthe desired amount of split flap travel. If you put thesplit flaps on a separate channel such that you canincrease the throw of the split flap servo arm compared
to the wing flap servos, a standard 1.5” armshould be sufficient.
Fill your tires until firm. This should be in the 20-40
pound range. Be sure not to overfill or your main tireswill not clear the gear doors!
CG:
A good place to start CG is at the aft side of the forward
carbon fiber spar with residual fuel and geardown. An easy way to check CG is to set the modelon a low stand with the wings away from the fuse just
Der Jet F9F-8 Cougar
far enough to locate the spar. Lift the model gentlywith your thumbs on the fuse at the wing root from underneath.
This CG was achieved on the prototypeaircraft utilizing no ballast weight with the equipmentinstalled as shown in Appendix B.
This CG is slightly conservative, and you may want tomove it aft a bit after the first flights to suit your flyingstyle.
Throws:
Aileron: 25 mm normal rate at outboard end, high rate
to suit flying style.
Elevator: 30 mm at root edge.
Rudder: As much as practical, typically 40-45 mm
Flaps: 8 degrees approach, 30 degrees landing at
outboard end.
Recommended expo is 45% on elevator and ailerons.
Nose gear dual rate should be set to a low value fortakeoff run.
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