From 37:40 , L J Build ( foam wing ) .
1: 38 : oo Stab Alignment ! on the Strega I ran 3/32 over the full Stab / elevator chord .
To Avoid the Down Elevator at Neutral for even turn . Hanging it on a line , It Turns Even . Both Ways .
As the Stabs further aft & narrower , around 1/16 overall 'd be ' Appropriate . Or Bretts One Degree .
A l o n g stick ea side , packed even and spacered same as stab root depth , run way forward ,
getting ' The Fine ' setting of slight Pos. is vastly refined . Any Neg. would be Atrocious .
So dont leave it in the sun .
These L o n g Flaps , you relly want rock hard dead evenly matched ( adjacent sheets from the mill )
Evenly TORSIONALLY matched . Twist Along Length holding each end . Lightest youve got .
But the SELECTION is on STRENGTH . TORSIONAL . MATCHED .
Purely on lightness you can find air loading has the tips still at neutral , on soft stuff . Al Rabe used FIVE Layers of Glass Cloth , to stiffen & match Big Satio & Ro Jett plane flaps .
Missmatched torsionally , youll get Roll , Hinging & Yaw . So Itd never Trim Out at varying wind speeds / Pressures . SO TAKE YOURE TIME TO SELECT THE STIFFEST WOOD AVAILIACLE .
Even 11 Lb Stuff . Youll Need It !!!!!!!!!!!!!!!!!!!!! specialy if Dope & tissue rather than Epoxy / Polyester finish ( Where the skin strength is more ridgid . Still . Dont Use Soft Light Wood on LONG FLAPS )
ditto . 6:45
See Jose for Drgs . or blow up previous photo . Comes out very straight .