Well after looking at Craig Chastney’s Twin DPS design several times. I wanted to design a tri-engine plane closely based on his design. I started playing around on Turbo CAD LE and this is what I came up with. I hate posting about a plane before I have flown it, but it has been sitting in the basement about 95% complete for the past few weeks. Not to mention the anticipation to post about it has been killing me. I finished it last night. If the weather gets a little better in the next few days I hope to maiden it. I taxied it around without the wing, a week or so ago. The nose wheel I had on it seemed to be very flimsy, so I changed it. What a sound when you get all three engines dialed in!!
Specifications
76” wingspan
16” chord
76” overall length
Engines (3) O.S. .46 FXi
Servos (9) Futaba 3004 (2) 3001
Batteries (2) 2000 mAh 4.8V NiMH
Receivers (2) Futaba R127DF
5 Channels Ailerons, Elevators, Rudders, Throttles, & Flap
Radio Set up is as follows:
RX #1 Right Side
Ch.B 4.8V 2000 mAh NiMH Battery on R. side switch
Ch.1 R. Aileron
Ch.2 R. Elevator
Ch.3 Center engine throttle
Ch.4 R. Rudder + Nose wheel on Y-harness
Ch.5 Center mono-flap
RX #2 Left Side
Ch.B 4.8V 2000 mAh NiMH Battery on L. side switch
Ch.1 L. Aileron
Ch.2 L. Elevator
Ch.3 L. and R. side engine throttles on Y-harness
Ch.4 L. Rudder
AUW 19.5 lbs. (I have never claimed to build light weight planes
)
Later,
Omaha