ORIGINAL: Bruce
Also the closer the engine to the balance point the bigger the angle has to be to achieve the desired effect. The ones that need this the most are also the ones with the power axis located well below the wing, which forms the lion's share of the overall drag of course.
Am not catching you here. This was a 1941 design when Free Flight was popular. The article was written circa 1999, and used a circa 1990's (large) radio. But then too this was first report of the need for huge downthrust. Up until then, it was up to the builder. From 1990 on to today the A/C has been flying bertter and better, but requires the large downthrust.
If I re-engine, and have some higher winding glow motor, will I still have to do the large downthrust as the fellow mentioned or not? It would be nice to get rid of much of it.
The model was yanked from the Modelcraft catalogue circa 1961 after it was really-really obsolete.
Wm.