Haven't seen any FF DLG/TLGs on the forum (except my own!)
But if you are flying an FF DLG, you might be interested in the kind of loads on the model at launch.
As a high handicap, senior citizen, i guess my golf swing speed is as low as 60mph.
(Tiger Woods over 120mph)
Compared to a golf club, i assume my TLG radius is about 2/3rds, and the speed is therefore about 2/3, or say 40 mph. Perhaps a bit more as the model is far lighter than a golf club.
Say 45mph (or 66 fps) at 4ft radius.
So what is the side load on the model?
Compared to its weight.
Or mv(sq)/r compared to mg
Or v(sq)/r compared to g
Now v=66fps
So v(sq)=4356ftsq/secsq
If r(radius) is 4ft
So v(sq)/r= 4356/4 ft/secsq, or 1089 ft/secsq
As G is 32ft/secsq
Dividing, we get 34G!
So my 50gm model gets a side load of nearly 1.7kg!
That's why the wing to fuselage joint breaks!
If there is any interest, i'll discuss tail boom flex next.
You'll be shocked at how much the tail boom flexes!
Hope there are some readers for this kind of stuff...