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Old Jul 17, 2012, 07:23 AM
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Australia, WA, Ellenbrook
Joined Feb 2008
3,321 Posts
just did a little weigh in now that all the major structures are done, the results are obviously only an indication at this stage but are starting to tell me that my 4 1/2 lb target weight is not very likely to happen, i have only been using titebond, no CA from memory, and the only epoxy i have used was for securing the brass tubing at the lower wing joiner, gear and cabaine strut lashings, and the lower wing strut mounting blocks.

component weights at this stage are,

fuselage 618g 21.8 oz
tail plane and fin 47g 1.65oz
top wing and CS 232g 8.2 oz
bottom wing + joiner rods 171g 6.0 oz
power sys, inc prop + spnr 308g 10.8 oz
flap servos and mounts 26g 0.92oz
4 x HS82mg servos 72g 2.5 oz
U/C inc wheels - spats 188g 6.6 oz

totals at this stage 1662g 58.50oz 3.66lb

by comparison the only other model of roughly the same size i have is my FMS 109 which
comes in at 2140g 75.5oz, 4.72lb minus battery.
that flys very well at this weight and slows down nicely especially with the flaps, i figure that with the extra wing area of the 51 it will obviously not be a floater, but should fly quite nicely, much like your average sports plane. will definately be keeping an eye on weight, dont want it to blow out unnecessarily.

just thought you might be interested Peter.

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