stunthanger.com
Engine basics => Engine set up tips => Topic started by: Tim Wescott on April 24, 2012, 03:21:40 PM
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Are there any of these scanned in out there? I seem to know how to run the engine -- I just like to have the manufacturer's take on things...
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Tim, I believe that on OS website, there is a link for archives with PDF files of the manuals,, have you tried there?
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HI Tim,
The OS manual has no mention of the Brett Buck Tune Up in it. ;D
BIG Bear
RNMM/AMM
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Or maybe cause I am SUCH a great guy, I will do the google for you,, and guess what,, on RCG I found this,,
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Or maybe cause I am SUCH a great guy, I will do the google for you,, and guess what,, on RCG I found this,, part two,,,
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HI Tim,
The OS manual has no mention of the Brett Buck Tune Up in it. ;D
BIG Bear
RNMM/AMM
Muah ha ha ha,,, well played Bill, well played H^^
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Thank you Mark. I looked on the OS website, and then Googled, but did not find: you possess superior Google-Fu than do I today.
Bill: ;)
Interesting fuel mix they recommend: 25% castor and no nitro, or 20% castor, 10% nitro. No mention of synthetics at all.
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Also, that is the manual for the steel liner FPs.
The manual for the ABN FPs specifies 75% methanol, 20% castor oil and 5% nitro or 65% methanol, 20% oil and 15% nitro.
Again, no mention of synthetic oil.
The LA manual recommends the same fuels as the ABN FPs.
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I now use the castor only fuel in old worn out engines that would loose too much compression if synthetic oil was used. Sig Champion ( 1/2 and 1/2 oil) w/4 oz. of castor added per gallon for the old iron piston bushing crank engines like the Fox .35.
BIG Bear
RNMM/AMM
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HI Tim,
The OS manual has no mention of the Brett Buck Tune Up in it.
Yes, as a matter of fact, it does! It says to take it out of the box, assemble it, and bolt it to the airplane. Nowhere in there does it mention a Dremel tool with a grinding point, nor does it discuss blocking the boost port, putting in a smaller venturi, adding head gaskets, running 11-5.5 props at 8500 rpm in a 4-stroke, throwing away the muffler, etc. It also recommends a 9-4 prop for break-in, and for "sport flying". It's almost as if OS actually knew how to build a good engine BEFORE they consulted with "stunt experts".
Brett
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It's almost as if OS actually knew how to build a good engine BEFORE they consulted with "stunt experts".
How odd. That an engine manufacturer should know their job.
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How odd. That an engine manufacturer should know their job.
They probably consulted with Brett before finalizing the design! #^
Randy Cuberly
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They came pretty close with the VF, too.
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They came pretty close with the VF, too.
Yeah...I'll bet they were as surprised as we were about that one!!! y1
Randy C.