Giant Twin Ideas
02-20-2002, 07:18 PM
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K&B 65?
The chance of a k&B 65 staying running for the duration of the flight is "Not very good"
The chance of two k&b 65's staying running together during the same period of time is "Not very good" x "Not very good" which is approaching "slim to none".
I think it might be a better idea to seperate those pair into different airframes, or, choose more reliable engines for the project.
Just my 2 cents worth based on my experience with K&B engines...
-=>Raja.
The chance of two k&b 65's staying running together during the same period of time is "Not very good" x "Not very good" which is approaching "slim to none".
I think it might be a better idea to seperate those pair into different airframes, or, choose more reliable engines for the project.
Just my 2 cents worth based on my experience with K&B engines...
-=>Raja.
02-20-2002, 08:06 PM
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Re: K&B 65?
Originally posted by rbort
The chance of a k&B 65 staying running for the duration of the flight is "Not very good"
The chance of two k&b 65's staying running together during the same period of time is "Not very good" x "Not very good" which is approaching "slim to none".-=>Raja.
The chance of a k&B 65 staying running for the duration of the flight is "Not very good"
The chance of two k&b 65's staying running together during the same period of time is "Not very good" x "Not very good" which is approaching "slim to none".-=>Raja.
I would go with OS, personally, as I have NEVER in 15 years, seen a bad OS...I do fly other engines, for different reasons, but if I were to build another twin, any twin, I would go with the most reliable engines I could, and to me that is OS...
Have had 5 or 6 K&b's...not ONE was worth the postage to ship them to Siberia...Even had one that spent more time at K&B then it did at my house, and never DID run more than 6 minutes! Everything was checked, tank height, the fins were shaved (K&B said it ran too cool), then they replaced the head (they said it ran too hot!!), pump, regulator, another pump, no matter what, nothing ever worked on it - K&B got tired of playing with it, and sent me a new one...didn't run much better, but at least it ran lousy for 20 minutes...
Unless your K&B's are put together by Clarence Lee (which are outstanding), I wouldn't trust a "serious" plane to one...I use my two now for SPAD combat, only...if I have an engine to engine midair, I really don't feel bad
02-20-2002, 09:06 PM
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I have my eye..
on a big scale Britten-Norman Islander. I ordered the plans from Model Airplane News and plan on enlarging them a little for two .80 four strokes. The Islander makes a good twin since it doesn't have to have retracts to be scale, relatively easy to build, and supposedly has good flying characterisitics.
Tommy
Tommy
02-20-2002, 11:12 PM
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12' Twin Otter with 120 RCV's
I have a set of 80" plans for a Twin Otter 300 series that I'm considering blowing up to approximatly 12 feet.Sould weigh in around 25-30 lbs .I think these new 120 RCV would fit in nicely in the cowlings.Plus they are turning big props.Sounds like a good match maybe?..Steve
