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#1
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light twins?
Greetings,
What light twins exist now? What I'd like to have is something like the AirCam, for 100 mph, carefree low and scenic flying. Actually, push/pull symetrical thrust would be even better. The AirCam would be fine as is, if I could get a kit that's made from traditional materials, rather than gold as the price would suggest :-) Cheers, Rusty |
#2
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Rusty,
Check out http://www.spectrumaircraft.com/ Regards, Gordon. "Bellsouth News Server" wrote in message . .. Greetings, What light twins exist now? What I'd like to have is something like the AirCam, for 100 mph, carefree low and scenic flying. Actually, push/pull symetrical thrust would be even better. The AirCam would be fine as is, if I could get a kit that's made from traditional materials, rather than gold as the price would suggest :-) Cheers, Rusty |
#3
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Thanks Gordon,
I actually found that site yesterday, and the A-36 Vulcan would certainly fit the bill. I have a message into Spectrum now to see if this is a real product, or still in development. With any luck, it will be far cheaper than the AirCam, though you wouldn't think so to look at both of them. Cheers, Rusty "Gordon Arnaut" wrote in message ... Rusty, Check out http://www.spectrumaircraft.com/ Regards, Gordon. "Bellsouth News Server" wrote in message . .. Greetings, What light twins exist now? What I'd like to have is something like the AirCam, for 100 mph, carefree low and scenic flying. Actually, push/pull symetrical thrust would be even better. The AirCam would be fine as is, if I could get a kit that's made from traditional materials, rather than gold as the price would suggest :-) Cheers, Rusty |
#4
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Good luck, Rusty.
These little twins look very interesting to me. They claim the little two-stroke twin is able to take off on one engine, which is a pretty impressive feat. I also like that they are aluminum construction and the wing is a long-span, high aspect ratio design that should give a very good glide ratio. Looks like thoughtful design throughout -- not surprising since I understand the principals are engineers from Antonov. Regards, Gordon. "Bellsouth News Server" wrote in message ... Thanks Gordon, I actually found that site yesterday, and the A-36 Vulcan would certainly fit the bill. I have a message into Spectrum now to see if this is a real product, or still in development. With any luck, it will be far cheaper than the AirCam, though you wouldn't think so to look at both of them. Cheers, Rusty "Gordon Arnaut" wrote in message ... Rusty, Check out http://www.spectrumaircraft.com/ Regards, Gordon. "Bellsouth News Server" wrote in message . .. Greetings, What light twins exist now? What I'd like to have is something like the AirCam, for 100 mph, carefree low and scenic flying. Actually, push/pull symetrical thrust would be even better. The AirCam would be fine as is, if I could get a kit that's made from traditional materials, rather than gold as the price would suggest :-) Cheers, Rusty |
#5
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I got a reply from Spectrum, and it wasn't quite what I expected. I had
mentioned in my original message that my interest was in putting two single rotor Mazda engines on the plane. Unfortunately, they seem to be very anti-experimental, and it was suggested that I "find some other design to mess with...". Silly me, I thought it would be a perfect design to test alternative engines. Needless to say, they won't be getting any of my business. Cheers, Rusty 13B Mazda power RV-3B flying Single rotor Mazda powered Kolb Slingshot in progress (got rid of the 912S) |
#6
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Rusty,
Thanks for the update. I hate that kind of attitude from vendors too. Oh well, if they don't like the color of your money, it's their loss. I'm intrigued by your twin-wankel idea. I appreciate the elegant simplicity of the wankel design myself and try to keep abreast of what's happening in the rotary avaition community. When you say single-rotor, are you talking about a 13b that has been shortened? I wonder too about the smaller displacement Mazdas -- you never hear much about those, but I would assume they should be lighter than the 13b. Regards, Gordon. "Bellsouth News Server" wrote in message .. . I got a reply from Spectrum, and it wasn't quite what I expected. I had mentioned in my original message that my interest was in putting two single rotor Mazda engines on the plane. Unfortunately, they seem to be very anti-experimental, and it was suggested that I "find some other design to mess with...". Silly me, I thought it would be a perfect design to test alternative engines. Needless to say, they won't be getting any of my business. Cheers, Rusty 13B Mazda power RV-3B flying Single rotor Mazda powered Kolb Slingshot in progress (got rid of the 912S) |
#7
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Hi Gordon,
Yes, by single rotor, I mean a shortened 13B engine. This requires a few custom made pieces, primarily the eccentric shaft, but these are probably going to become more available as the Sport Pilot class of planes comes online. Mazda did make smaller engines, but it was a long time ago. The 10A ended production in 74 I believe. The 12A was a good engine, and it's "only" been out of production for 20 years. The 13B is by far the most commonly available engine today, though it won't be too many years before the Renesis will take over that honor. Unfortunately, the smaller engines aren't all that much lighter, since it's the rotor housing and rotor that get narrower. Also, as the 13B advanced, the rotors got lighter, to the point where a late model 13B rotor is probably lighter than a 10A rotor. I haven't looked at the weights, so that's just my estimation. Bottom line is that the 13B, and Renesis are about the only realistic choices for single rotor conversions at this time. What would be better than a single, would be a smaller two rotary. There are any number of these popping up, but like so many other new engines we see, they just never seem to materialize, and if they do, they're so expensive that they lose their appeal. There are some very attractive rotaries made for UAV/target drone use, but they aren't sold for manned aircraft, and I haven't been able to figure out what the TBO would be. Can't imagine the life expectancy of a target drone is very many hours :-) Getting parts for these odd engines would be a problem as well. Cheers, Rusty I'm intrigued by your twin-wankel idea. I appreciate the elegant simplicity of the wankel design myself and try to keep abreast of what's happening in the rotary avaition community. When you say single-rotor, are you talking about a 13b that has been shortened? I wonder too about the smaller displacement Mazdas -- you never hear much about those, but I would assume they should be lighter than the 13b. Regards, Gordon. |
#8
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Thanks for the info, Rusty.
How much does the 13b single rotor weigh? And how much does it cost to get the e-shaft shortened? I think I saw a picture of that drone you mentioned. It's an air-cooled rotary made by the Israelis, I believe. I too would love to see a small two-rotor, preferably air-cooled and with aluminum end housings. That would make a very nice little engine. There is an outfit here in Canada that is promising to produce some small rotaries for light planes, but I don't know how far along they are. A German outfit makes single-rotor go-kart engines, as well as an UL version. Regards, Gordon. "Bellsouth News Server" wrote in message .. . Hi Gordon, Yes, by single rotor, I mean a shortened 13B engine. This requires a few custom made pieces, primarily the eccentric shaft, but these are probably going to become more available as the Sport Pilot class of planes comes online. Mazda did make smaller engines, but it was a long time ago. The 10A ended production in 74 I believe. The 12A was a good engine, and it's "only" been out of production for 20 years. The 13B is by far the most commonly available engine today, though it won't be too many years before the Renesis will take over that honor. Unfortunately, the smaller engines aren't all that much lighter, since it's the rotor housing and rotor that get narrower. Also, as the 13B advanced, the rotors got lighter, to the point where a late model 13B rotor is probably lighter than a 10A rotor. I haven't looked at the weights, so that's just my estimation. Bottom line is that the 13B, and Renesis are about the only realistic choices for single rotor conversions at this time. What would be better than a single, would be a smaller two rotary. There are any number of these popping up, but like so many other new engines we see, they just never seem to materialize, and if they do, they're so expensive that they lose their appeal. There are some very attractive rotaries made for UAV/target drone use, but they aren't sold for manned aircraft, and I haven't been able to figure out what the TBO would be. Can't imagine the life expectancy of a target drone is very many hours :-) Getting parts for these odd engines would be a problem as well. Cheers, Rusty I'm intrigued by your twin-wankel idea. I appreciate the elegant simplicity of the wankel design myself and try to keep abreast of what's happening in the rotary avaition community. When you say single-rotor, are you talking about a 13b that has been shortened? I wonder too about the smaller displacement Mazdas -- you never hear much about those, but I would assume they should be lighter than the 13b. Regards, Gordon. |
#9
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Bellsouth News Server wrote:
What would be better than a single, would be a smaller two rotary. Whatever happened to the motorcycle rotaries? IIRC Suzuki had a 500cc rotary in a motorcycle about 20 years ago. And Norton too? I'd guess that a rotary of this size would be ideal for a microlight aircraft. |
#10
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Frank van der Hulst wrote:
Bellsouth News Server wrote: What would be better than a single, would be a smaller two rotary. Whatever happened to the motorcycle rotaries? IIRC Suzuki had a 500cc rotary in a motorcycle about 20 years ago. And Norton too? I'd guess that a rotary of this size would be ideal for a microlight aircraft. All this talk about the rotary engine. If they were this great, would there not be at least a couple cars running them ? -- Mark Smith Tri-State Kite Sales 1121 N Locust St Mt Vernon, IN 47620 1-812-838-6351 http://www.trikite.com |
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