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alienwes
Joined: 11 Dec 2012 Posts: 64 Location: Roswell, NM
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Posted: Sat Jan 05, 2013 4:42 pm Post subject: Viking/Honda Engines-Again! |
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I know that this new engine has been talked about in the past, but it seems they have been shipping out alot of them and it looks like they might be around for the longterm. One the viking yahoo forum there is a guy who says he is seriously considering mounting the Viking on a KOLB.
Jan-
I think it would be great if you looked at the integration of the engine on the
2 place KOLB's. I think it would be an excellent performance fit and I believe
the market, especially retrofit, would be at least as large as the SeaRay. I
could send you pictures or scanes of the drawings offline. The KOLB factory
guys could probably do even better. I am aware of these airplanes with mostly
912's Jabs and 582's, but also 618's, Hirths, Subarus, VW's, and BMW's. I am
not aware of any of them using a conventional welded tubing engine mount. They
bolted from a bottom framework on the engine essentially at the engine
longitudinal CG to 4 Berry/Lord mounts on about a 10 in square horizontal pad at
the aft end of the KOLB cage. If there is available structure for that on the
Viking it would probably be the most structurally efficient option...especially
for those of us with a finished cage and looking at a retrofit from the Rotax
configuration.
Bob
Might be another alternative to the costly 912?
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_________________ Wesley Elliott
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neilsenrm(at)gmail.com Guest
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Posted: Sat Jan 05, 2013 8:15 pm Post subject: Viking/Honda Engines-Again! |
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Wes
You are asking a lot of interesting questions. That's good. A new engine on a airplane is from personal experience a lot of time and effort. Seemed like everything needed to be designed and built for that engine/air frame. Check the engine weight closely, it is real tough to beat the power/weight of a 912. Engine manufacturers are notorious for under reporting their operational weight. Additional weight means less load carrying capacity so you could end up with a single passenger airplane or worse. Engine mounts and exhaust systems are a nightmare and don't expect to have a engine or airplane manufacture to design one for you without a proven market opportunity. Seemingly easy things like prop selection and reduction ratios are very difficult to get right the first or second time. Bottom line it is easy to spend more than the cost of a 912 and not have as good a engine or worse.
Rick Neilsen
Redrive VW Powered MKIIIC
On Sat, Jan 5, 2013 at 7:42 PM, alienwes <elliott.wesley(at)yahoo.com (elliott.wesley(at)yahoo.com)> wrote:
[quote]--> Kolb-List message posted by: "alienwes" <elliott.wesley(at)yahoo.com (elliott.wesley(at)yahoo.com)>
I know that this new engine has been talked about in the past, but it seems they have been shipping out alot of them and it looks like they might be around for the longterm. One the viking yahoo forum there is a guy who says he is seriously considering mounting the Viking on a KOLB.
Jan-
I think it would be great if you looked at the integration of the engine on the
2 place KOLB's. I think it would be an excellent performance fit and I believe
the market, especially retrofit, would be at least as large as the SeaRay. I
could send you pictures or scanes of the drawings offline. The KOLB factory
guys could probably do even better. I am aware of these airplanes with mostly
912's Jabs and 582's, but also 618's, Hirths, Subarus, VW's, and BMW's. I am
not aware of any of them using a conventional welded tubing engine mount. They
bolted from a bottom framework on the engine essentially at the engine
longitudinal CG to 4 Berry/Lord mounts on about a 10 in square horizontal pad at
the aft end of the KOLB cage. If there is available structure for that on the
Viking it would probably be the most structurally efficient option...especially
for those of us with a finished cage and looking at a retrofit from the Rotax
configuration.
Bob
Might be another alternative to the costly 912?
--------
Wesley Elliott
Sport Pilot-PPC
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ceengland7(at)gmail.com Guest
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Posted: Sat Jan 05, 2013 8:21 pm Post subject: Viking/Honda Engines-Again! |
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It's also good to take a very close look at the vendor. That particular vendor has a long track record (that, with a different name, precedes the Viking project & has a much longer record). Your mission, should you choose to accept it, is to determine what that track record is.
Charlie
On 01/05/2013 10:15 PM, Rick Neilsen wrote:
[quote]Wes
You are asking a lot of interesting questions. That's good. A new engine on a airplane is from personal experience a lot of time and effort. Seemed like everything needed to be designed and built for that engine/air frame. Check the engine weight closely, it is real tough to beat the power/weight of a 912. Engine manufacturers are notorious for under reporting their operational weight. Additional weight means less load carrying capacity so you could end up with a single passenger airplane or worse. Engine mounts and exhaust systems are a nightmare and don't expect to have a engine or airplane manufacture to design one for you without a proven market opportunity. Seemingly easy things like prop selection and reduction ratios are very difficult to get right the first or second time. Bottom line it is easy to spend more than the cost of a 912 and not have as good a engine or worse.
Rick Neilsen
Redrive VW Powered MKIIIC
On Sat, Jan 5, 2013 at 7:42 PM, alienwes <elliott.wesley(at)yahoo.com (elliott.wesley(at)yahoo.com)> wrote:
Quote: | --> Kolb-List message posted by: "alienwes" <elliott.wesley(at)yahoo.com (elliott.wesley(at)yahoo.com)>
I know that this new engine has been talked about in the past, but it seems they have been shipping out alot of them and it looks like they might be around for the longterm. One the viking yahoo forum there is a guy who says he is seriously considering mounting the Viking on a KOLB.
Jan-
I think it would be great if you looked at the integration of the engine on the
2 place KOLB's. I think it would be an excellent performance fit and I believe
the market, especially retrofit, would be at least as large as the SeaRay. I
could send you pictures or scanes of the drawings offline. The KOLB factory
guys could probably do even better. I am aware of these airplanes with mostly
912's Jabs and 582's, but also 618's, Hirths, Subarus, VW's, and BMW's. I am
not aware of any of them using a conventional welded tubing engine mount. They
bolted from a bottom framework on the engine essentially at the engine
longitudinal CG to 4 Berry/Lord mounts on about a 10 in square horizontal pad at
the aft end of the KOLB cage. If there is available structure for that on the
Viking it would probably be the most structurally efficient option...especially
for those of us with a finished cage and looking at a retrofit from the Rotax
configuration.
Bob
Might be another alternative to the costly 912?
--------
Wesley Elliott
Sport Pilot-PPC
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