Building a 40 size foam board fuselage.
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- Опубликовано: 13 май 2024
- This is an exact copy of the once popular Hobbico 40 trainer. I built a fuselage entirely out of foam board and some thin basswood. this is a complete video of the process and the painting. I can't wait to test fly this airplane! It came out almost a pound and a half lighter than the original fuselage with the eflite bl25 motor. thanks for watching please like and subscribe and keep an eye out for the test flight video....
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Its an exact copy of the Tower hobbies late 90s arf just made it a tail dragger.
Shaved over a lb off. Has to feel a lot different in flight.
We will see hopefully the wind calms down this weekend so I can go fly it!
905 strange wing. apparently, no center section. the vert-stab could be a little taller. should be equal to slightly less-than fifty percent of the horiz-stab span. d
The wing is the wing that came with the ARF it's balsa wood and plywood.
727 'adding' mass at the tail should be avoided. dom, remember. maybe, glue fillets would do the job, with less mass. obviously, the use of a tail wheel makes the tail Heavier. did you even consider using a (low-mass) skid.
733 there should be NO extra, cosmetic bends in a PUSHROD.! this is not an opinion. d
Well it flies great and it's balanced perfect but everyone has there opinion.
005 the slope of the vert-stab le is/was excessive. about 75 degrees is nominal. for a miniature vert-stab. there is one problem with making a tail boom from a panel material. it is this:
there Will be excess mass in the tail boom, Unless corrective steps are taken.!
specifically, construction of the tail boom should accommodate the use of (mass-reducing) cutouts.
150, 915 for a tail dragger, the main lg should be located directly below the wing leading edge. this is not an opinion. for proof, look at full-sized tail draggers.
515 servos go Near the cg, not aft-of it.! this is not an opinion. it's about distribution of mass (dom). similarly, the mass of aileron servos should be located forward-of thirty percent of chord.
there is Nothing Wrong with a long pushrod.! assuming it is correctly made/fabricated and installed. conversely, there is 'nothing good' about a short pushrod.
920 the use of full strip ailerons is not recommended, on anything that is not a cropduster.!
924 the root chords of the stabs Should be Equal in length. d
The only thing I changed on this airplane what is it making it a tail dragger. And building it out of foam everyone seems to be an expert.