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Pilot Fairchild PT-19 Cornell
Pilot Fairchild PT-19 Cornell

            

Pilot Fairchild PT-19 Cornell
Description: Scale model from WWII primary trainer
Keywords:  
Date: 02.25.2012 12:50
Hits: 3289
Downloads: 2096
Rating: 5.00 (2 Vote(s))
File size: 3.5 MB
Added by: danito69

Comment:
littlera
Member

Join Date: 02.24.2015
Comments: 5
decrease weight.

This plane builds very heavy if kit built or done by the plan. The fuselage is overkill in use of plywood. Make the side doublers from balsa, as well as formers behind wing. Reduce thickness of other formers. If built to plan the fuse is strong enough to be used as a baseball bat. Put it on a diet. It would be tail heavy with smaller engines, too.
03.30.2015 09:05 Offline littlera
slickporsche
Member

Join Date: 07.08.2013
Comments: 10
Fairchild PT-19

With any plane you must pick your wood wisely. Lose all the lite ply, because it is crap, heavier, and weaker than balsa. Build this one with 1/8" balsa fuselage sides, and no cutouts. All bulkheads, except 11,8, &5, need to be cut from 1/8" balsa. Eliminate the maple motor mounts, and move F-11 forward enabling you to use a conventional motor mount. Cut F-11 from 1/4" aircraft ply, and F-8,and F-5 from 1/8"aircraft ply. Be very picky about the wood used aft of the wing. It will end up much stronger and lighter than the kit or plans version
07.22.2015 07:51 Offline slickporsche
marcillacJohn
Member

Join Date: 10.04.2016
Comments: 1
Wing ribs

How is it possible to make the wing ribs, as they are not shown individually on the plan. This is a tapering wing and the bottom detail of each rib is obscured by the previous one. Has anyone done a short kit of laser parts for this plane. I sure would like to build one as its a lovely looking plane.
10.06.2016 15:22 Offline marcillacJohn
jprimrose
Member

Join Date: 12.12.2013
Comments: 2
Very heavy?

The design max weight is 1750gr or 3.85 pounds, that is not too heavy for a gas powered plane of this type and size. If you want a lighter version then this plan would need a lot of changes as you say; so choose a jumbo rubber plan instead. But to criticize the design for using lite play is just dumb; it is a kit plan, the use of liteply in a kit is very appropriate. For a plan build I would also use plain balsa sides because it is simpler. If you have the kit (I have) then it suffers from too heavy wood in some places, so I swap that out or thin down make holes etc. Also note that it is quite simple to fret out excess lite ply after the structure is complete with a dremel. Pilot kits are very well engineered. I suggest to keep the maple mounts they give anti-vibration weight where needed; they are more of a hassle than "modern" plastic mounts but they add structure. Again, you can remove other structure what is not needed as required. Hard to believe you would get a nose heavy version using simple variations as I mentioned; no need for drastic changes. Comments from anyone who actually has built one would be nice? PS. "Liteply" like other plywoods is dependent on quality, good LitePly is very good when used correctly - as Pilot have done imho.
10.06.2016 20:29 Offline jprimrose



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