ORIGINAL: da Rock
ORIGINAL: dick Hanson
On speed the guys adapted line groupers which hopefully placed one line exactly behind the other- reduced deag thru better fineness ratio.
Actually the speed guys simply used one control line. Just one. Called it monoline and it never gave the problems the groupers gave.
Yeah, just one line.
I should not have even mentioned lines --but groupers were NOT a precurser of the single monoline - those things twisted to operate a dingus in the fuselage
different ballgame.
I did fly some class A profile scale speed - no groupers allowed. long ago -
those housings shown on some engines above.--- add frontal area. and on speed stuff-- that shows up