" There is a reason a Twister is called a Twister."
the Bob Hunt lesson / pronouncement R: ' To Narrow fuselages '. par tick u larly at the rear , tailplane L.E. / Hinge line .
At the hinge line, it make fiting pushrods & horns awkward. Thing Foul . Ply doublers carved away for control movement clearance arnt an optimum solution .
It would appear near 1/2 O.A. Width isnt a bad idea , at the tailplane leading edge . 1" to 1 1/4 " , with 3/4 " to 1 " at the hinge / Horn . So things fit .
If ive gottit wright , Bob says His last Genisis Mk III World Chaps plane ( 1981 ) was a bit narrow aft , and on occasion ( of its choosing , could suddenly veer elsewhere , in a stiff breeze )
Point Being , in unruly air , The Wind Load / Side Load / Torsional Force , may abrubtly alter . So a sudden deflection occurs . Like with understrenght horns & pushrods .
But with the overall alignment of the wing & Tailplane . And obviously the flaps & elevators , also the wake / wash , and force generated by their deflections alignment .
Plus maybe slight ' neutral ' control missalignment ( Flap to elevator relationship ) due to mechanical lengths altering due to structure deflection .
His ( Bobs ) Crossfire was A BEEFED UP FUSElAGE Derivative of the flawed Genisis III . If ive got that right. Swept hingeline . *
Read Recently allusion , a straight ruler dragged through water wavers Laterally . Whereas if you cut the aft edge tapered forward outward , It wont osscilate . Wynn Paul stateing Bob's obsevations .
Seeing as recently swept Fwd. T.E. / Hinge lines wewre being discussed .