What I-beamers would you still want to build?
Doing one for the Stalker 76 , think at 67 in , as big as I figure Id hold if its howling .
This ( in the picture 57 in. ) has every third rib & nose rib solid , and 1/16 ply for three half ribs in
flat in each tip . Was a swine getting the ribs on the tapered spar , as its 1/4 with 3/8 x 1/8 spruce cap strips .
New one ll be maybe 5/16 spar , with 1/2 x 1/8 top grade spuce cap strips .Tapered width going out ! .
So its NOt an ' I ' , will do vert grained spacer / packers , at the solid ribs . Or 1/16 ply gussets there , Ea 3rd rib .
This gets the rib hole square rather than I , which on a taperd spar dont slide along unhindered .
Tend tagofor 7 mm deep , so lost in sanding flush , youve still gotta quarter . Harder wood'll do too .
Likely use 5/16 - 8 mm on the new Flokerts . The Fuse is layed up , rest to go ,almost onto the tailplane. Spuce LE inner .
All this junk so yo can fly it into Er Um ONTO the ground when the engine cuts, in hurricanes .tho that one theres been into soft ground a few times , worst damadge was a split in the fuse from catching the tailplane between the ankles exiting the shed door / step .
in a farm field vertical , lines loose , from a into wind take off , on the new Sig 015s one night. Unclogged the intake & got a flight .
Never flew in wind on that wire again . 'd thought they would snap &
were sretching a good few inches , like 4 or so , in gusts .
Used 1/4 Sq Spuce spars , Vert Grain ( parrallel /Even depth ) 3/32 web , with occasional ply gussets both sides,
scalloped end ( half an O ) along it . all the ribs just the 1/4 deep .TE & LE spruce too .Covered in silk & tissue ,
You can put the fuse on your knee - and with some force - pull the tips up & down a few inches , no problems .