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sulloway(at)clis.com Guest
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Posted: Sat Oct 06, 2007 3:55 pm Post subject: 601 with O-235 |
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Anybody out there have experience with the 601 XL with an O-235 in it?
If so what are your impressions? I know the usefull load is less and the duration shorter, what else do I need to know.
Regards
Woody
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passpat(at)aol.com Guest
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Posted: Sat Oct 06, 2007 5:04 pm Post subject: 601 with O-235 |
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I think its a great combo what little weight you lose is well made up for in other area's
Pat
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MaxNr(at)aol.com Guest
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Posted: Sat Oct 06, 2007 8:53 pm Post subject: 601 with O-235 |
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Couldn't tell you how it flies, still building. I chose the Lyc because I happened to have one on hand along with a McCaully prop. Other wise my next choice would be the Corvair first, the Jab 3300 next, then the Cont O-200. My engine/prop (O235 C2C and 71/54) came from a Grumman American AA-1, so that will make the test program simpler. I may re-engine later. The engine has a good reputation. The O-235 was certified in 1940. The 235 C2C has a 6.75:1 compression ratio and has a 2400 HR TBO. The latest Lyc Operators Manual gives the weight as 244 with the old heavy starter and generator. Rated power is 115 at 2800. Grumman American dialed it back to 108/2600 for noise certification. No Max Continuos Power (MCP) listed. Only 5 minute limits are for CHT. It will run on cheap booze (for a little while). Some XL builders are using the O-290 at about the same size & weight.
The 601 will do better than a GA AA-1 because it has 3 feet more span, more wing area and has a 200lb lighter empty weight. Never flown one. To compare apples to oranges, see FAA home page and look up Type Certificate Data Sheet (TCDS) "A11EA" for the AA1. Also compare at: http://www.grumman.net/cgrcc/aa1compare.html
They kind of look alike from a distance.
Bob from Pace, FL
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