That parallels my experience as well.. mine was essentially a flat plate equilateral triangle delta with a central rudder, AR~2. I was able to turn it without using ANY rudder input (elevons only), but a modest amount of rudder allowed it to carve cleaner, tighter turns.. I could also turn it with rudder only, but not quite as easy. It would maintain lateral control, even at very high AoA, nearly vertical descent.... next step is to build an improved version with motor & prop.I have a delta planform model made of flat foam that has a central fin and rudder. The rudder is effective. Adding it made a significant improvement n slow flight at high angles of attack.
hehe, I agree. Pinterest is not to be regarded as a useful tool. Just for entertainment and fun. But sometimes one of the things view'ed as entertainmant, gives a little spark of interestPinterest is a time wasting site, as it doesn't distinguish between delusions, concepts, plans, aeromodels, prototypes, or production machines. Terrible!