RCU Forums - View Single Post - A CHRISTMAS BTE VENTURE BUILD/MAIDEN FLIGHTS
Old 01-04-2008 | 12:34 PM
  #18  
airbusdrvr
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From: New Port Richey, FL
Default RE: A CHRISTMAS BTE VENTURE BUILD

Final report, prior to first flight, of the "Christmas Venture Build." 1) I have installed an OS 70 Surpass II four stroke engine, 2) a removable tank hatch was fabricated from balsa stock, 3) the landing gear attach holes were moved 1/2" forward of the plans location(hopefully to make operating on grass less tippy), 4) radio installation includes a Spektrum AR7000, four JR DS821 digital servos for the controls and a Futaba 3004 servo for throttle, 5) the elevator and rudder servos are mounted in the tail, 6) five cell battery is mounted under the fuel tank, 7) a Sullivan tail wheel installed instead of kit supplied tail wheel, 8) covered with Ultracote with vinyl red stars from local sign shop, 9) pilot is a Barbie doll head with cockpit lined in funky cloth to match her colors, 10)installed dual aileron servos, 11) used nylon screws to hold landing gear(even though the gear mounting plate was reinforced with lite ply and epoxy, I don't want to rip the mount in case of a bad or off field landing), 12) shortened each wing one rib. The unfueled weight is 7lbs 4oz with no lead added for balance.My CG came out a bit tail heavy per the plans. However, Bruce Tharpe had a RCU post at http://www.rcuniverse.com/forum/m_57...tm.htm#5947454 in which he stated, "BTW, I recommend a 1/2" CG range for the V60, which is basically the width of the main spar. I, and many others, have settled on a CG that is actually further aft, maybe 1/4" to 1/2" aft of the spar." As shown in the attached pics(blue tape on wing with pins showing CG location), my CG is just aft of the main spar by about 3/8". I am not going to use the wheel pants included with my kit. I don't know if they are the BTE supplied ones or not as I bought the kit from an individual who had bought the kit at a swap meet. They would just not be a good finished product. So the wheel pants will have to be installed when I find a suitable set. Final engine test run on the aircraft and first flight are still to come. Hopefully by next week if the weather gets warmer.

PS to post #5 above about the wing warp. After covering, the wing was perfectly straight. No twist at all.
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