September 24, 201411 yr I use my GTN 750 with my A2A C172 and it works great. However when I load my A2A Piper Cub the GTN 750 panel opens but will not turn on. I have heard the Flight1 GTN 750 may need to see at least 10 volts from the aircraft to operate but I don't think there are any battery supplied instruments in the Piper Cub and this could be the issue. Has anyone been able to turn on one of the GTN navigation devices in an A2A Piper Cub? Is there a modification that could be made to the panel config file to fool the GTN 750 at start up? Joe (Southern California) System: I9-9900KS @5.1Ghz/ Corsair H115i / Gigabyte A-390 Master / EVGA RTX 2080 Ti FTW3 Hybrid w 11Gb / Trident 32Gb DDR4-3200 C14 / Evo 970 2Tb M.2 / Samsung 40inch TV 40ku6300 4K w/ Native 30 hz capability / Corsair AX850 PS / VKB Gunfighter Pro / Virpil MongoosT-50 Throttle / MFG Crosswind Pedals / LINDA, VoiceAttack, ChasePlane, AIG AI, MCE, FFTF, Pilot2ATC, HP Reverb G2
September 24, 201411 yr The original J-3 Cub has no electrical system, it is purely Day VFR airplane. Cheers TJ "The knack of flying is learning how to throw yourself at the ground and miss." - Douglas Adams Tejon 'TJ' Stanley
September 25, 201411 yr Moderator Try adding this to the aircraft.cfg [electrical]max_battery_voltage = 24.0 electric_always_available=1 Fr. Bill AOPA Member: 07141481 AARP Member: 3209010556 Avsim Board of Directors | Avsim Forums Moderator
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