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Some general thoughts and observations on the project and materials used so far...... All in all it looks like Sig kits haven’t changed much over the years. Most of the hardware is junk but serviceable if you want to use it. The hinges were strange....they were either defective or different from any ca hinge i have ever seen. The outer layers would peel right off. Never saw that before that i can remember.. Installing great planes hinges.. The occasional piece of substandard major piece of planking.was there. Seems almost to be Sig's trademark..Got bit by that one. Piece of soft planking that wanted to sand thin and punch through eventually had to tear half of it out. Should have took it all out. My fault, but it had been so long since i built, i made misjudgments (and there were a lot things i didn't learn in the first place). But all in all it appears to me one most ingenious and versatile airframe lay outs i have ever seen in a model. User friendly and that makes up for any minor weaknesses.
One glaring error in the instruction sequence is installing the forward fuselage bottom before drilling the bottom wing dowel holes in lower wing leading edge mount blocks. This needs to be done soon as you have a framed fuselage and a sheeted bottom wing. If you follow the sequence in the instructions and the used the method described therein to locate the dowel hole centers, you will unnecessarily ‘Lock’ yourself out of the forward fuselage area by installing the FFB prematurely and have to accomplish the process of locating the holes for the leading edge dowels by Braille and pointed sticks as described on page 28 of the instructions. Thank you, Lord, for the threads. FBFwas one of the last things i did before covering. I would still trying to fix the missed drilled leading edge dowel holes. Too bad Sig won't issue an 'Airworthiness Directive', but i guess they feel that to admit the error would call for an entire rewrite of the instructions.
One thing i mentioned to Sig Master in a pm is one i missed about reversing the top wing cabane bolt direction and place the blinds in the top wing and run the mount bolts up from the bottom.. Eliminate the ugly bolt holes in the skin of the top wing. It would have make it a bit cumbersome to put the bolts in.at the field. (Requires a stubby driver), but i can transport mine assembled so it would have been worth it to me. Should have read the threads more.
In no particular order, some things added to my build:
Forward magnetic hatch. Plan to install magnetic switch cover in the cockpit when i get switches and charge plugs installed.
'Bird Cage' construction of cockpit walls using 1/8" dowels. Read too many horror stories of fingers stuck through weak walls.
Horizon Hobby has a Hellcat panel decal that looks decent, for a little over 3 bucks. Fit my build nearly perfectly. (will come up with part number if anyone is interested).
Shaped balsa headrest. Lower and longer. Just say no to plastic
Lower wing leading edge and trailing edge fairings.
Dubro composite gear and enlarged the landing gear plate. Stock position. Plan to run nylon bolts (forget what size....the ones up from 8-32). Hopefully on a bad day the bolts will go and the plate will stay.
Sullivan split elevator. Hope i got the geometry right...My first there, and maybe my last. and a subject unto itself. Hope it wasn't a bad idea, but i couldn't find much info on the subject.
Dubro rudder pull system and Hitec 645 servos
Homebuilt cam/microswitch dual glow system
Airtronics for guidance
Wheel pants, maybe, once through the shakedown period.