In Case You Missed it
Wind Tunnel
Multiple engines complicate design, because not only must the airplane be able to maintain flight on one engine, but also the pilot must be able to control it. Lateral/directional stability issues are key;
Avionics Special: Garmins G3X Engine Monitoring System
Ponying up for the engine-monitoring portion of Garmins G3X EFIS suite requires careful consideration, but the result is a truly integrated solution. By Marc Cook.