ZOHD Dart 250 Nacelle / Twin Motor Modd

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The ZOHD Dart 250 is one of the coolest looking FPV Planes. With it's forward swept wings, it looks more like a Klingon bird of prey than resembling some old successful plane (unlike AtomRC Peguin, wich is sort of a mix of everything). It's small and durable cute little plane. But without yaw control. And I mangaged to do failing handstarts in one out of 4 throws. Especially in winter with the complex task to handlauch, place the goggles, find the way into the steering handwarmer I like to have save handstarts... So this is an attempt to fix both; yaw control via differential thrust, Front Motor for easy start and slower Slowflight. And that works quite well, so much I can tell for sure after the short maiden (40 km/h Windspeed with gusts and dirty air and beginning rain did not prevent a soft landing) So onto the files: Nacelle_Raw is the first attempt, successfully tested. Nacelle_v3 is the first upgrade, but untested. It adresses the issue to pressing the wires into it's channel (same as for the servo, but cut it wider into the direction away from the cf bar. Motor_Plate (for a 9x9 Motor like 1305 to 1604 with 3500 - 5500 KW for 3" Props. MasterDxf for the profile for you to remix(not an exact match, but close enough). I measured a 10° forward swept wing and did not found that easy to measure. If anyone knows the definite Angle, please contact me. The Motorplate is bolted to the nacelle with a long M2 Screw (20 mm or something) and a short one. The ESCs are simple taped to the underside of the nacelle (a small zip tie will also do it). Right now I have no definite idea how to add a compartment and still have it printable with no or few supports. I hope some of you guys will do a remix blasting my version out of the water. If you do that modd, consider to start with an unglued kit version (around 50 Bucks). Otherwise it's a hassle with the cables. Center of gravity will miss the rear motor, you battery has to move to the middle and the flight controller to the rear compartment. Right now, I have no good PID Values. Those of the original Dart250 will tend to pitch-oscillate. I expect better pitch rates because the mass is closer to the center. But in the last days it's to wet and with heavy gusts, not a good idea to autotune. The M3 screw bolting it to the wing (i hotglued the upper side anyway) grips right behind the CF Bar, probably touching it. So it is probably a good idea to use a plastic screw for this.

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