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Old 11-21-2012 | 04:23 PM
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rhsmrt50
 
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From: GRAND PRAIRIE`, TX
Default RE: Don Smith Cessna T-50

Thanks Chic.......I do remember your references to to the Advenger and Birdog and the Bobcat........I can only keep up with one project at a time......and even at that, I spread myself too thin..........in reference to the washout, is this for the Bobcat or the Advenger?.......I do know that it is 2 degrees pos at rib #26 for the T-50............as far as the engines used ..........I peronally will be using two OS 160 Gemini 4-cycle nitro engines.........she will perform just fine on as small as 120's...........as far as gas is concerned......I have only the input of other builders on this thread...........Murphy is using the G-26's........send him a post........he can advise you there..........back to the washout problem Chic...........you can actually induce the necessary washout in you wing panels.......it's no different than removing a warp from your wing.........in this case, you are inducing a controlled warp at the tip of the wing.......the Don Smith wing used a jig at the rear spar to evelate it gradually from the wing root out to rib #26.....so the 2 degrees of pos washout was built in..........but, something happened on my right panel........it ended up with "0" washout on that tip....and 2-degrees on the left.........but not to worry!........my friend Ross said if it's made of wood.......it can be warped, 90 degrees if necessary......but remember, we are only looking at a measly 2-degrees..........so, we set the wing up on a table and level it at the center section.....then we weight it down and install incendince meters at the root and both wing tips............the meter reading at the root should be "0"..........my let wing panel meter indicateda pos 2 degrees washout............but the right panel was at "0", same as the root!.......so, we addeda long bar to the meter and clamped it at 3 degreesafter wetting the leadingedge planking, top and bottom....and.....the front and rear spars with a mixture of water and amonia...........after 24 hours.........we now had equal washout in both wing panels.......................in reference to your paint scheme, I love the desertcamo used on the RAF Bobcats............I think I may have a photo or two to send to you....if not I think I have a friend who could supply them.................Chic!.......get back to work on your Bobcat!........I will help in every way!

Rich....