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John H Murphy
Joined: 03 Jan 2007
Posts: 78
Location: Henderson, NV
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 Posted: Tue Dec 11, 2007 9:19 pm Post subject: E Gearbox w. a FS II |
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Has anybody used the Rotax E Gearbox with their FS II? Any issues in doing so? I want to keep my BRS in the usual place (above the pilot seat) and have an electric starter that does not get in the way.
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Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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| Posted: Tue Dec 11, 2007 9:32 pm Post subject: E Gearbox w. a FS II |
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Yes, but it's doable. We are using a 582, but a 503 will have the same
issues. The engine has to go up and back to make everything fit.
Pictures tomorrow.
Richard Pike
MKIII N420P (420ldPoops)
John H Murphy wrote:
| Quote: |
Has anybody used the Rotax E Gearbox with their FS II? Any issues in doing so? I want to keep my BRS in the usual place (above the pilot seat) and have an electric starter that does not get in the way.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=151800#151800
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_________________
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing. |
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bartmo(at)sbcglobal.net
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| Posted: Wed Dec 12, 2007 7:12 am Post subject: E Gearbox w. a FS II |
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John,
I bought a partially built Firestar II kit with an E box from Don Martin. The engine has not been installed yet. Don told me when he trial mounted it he had to move it back 1 inch for the starter to clear. I will post again when I install.
Bart Morgan
John H Murphy <mailjohnmurphy(at)gmail.com> wrote:
[quote]--> Kolb-List message posted by: "John H Murphy"
Has anybody used the Rotax E Gearbox with their FS II? Any issues in doing so? I want to keep my BRS in the usual place (above the pilot seat) and have an electric starter that does not get in the way.
Read this topic online [quote][b]
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Possums
Joined: 03 Nov 2007
Posts: 247
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| Posted: Wed Dec 12, 2007 7:28 am Post subject: E Gearbox w. a FS II |
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At 12:19 AM 12/12/2007, you wrote:
| Quote: |
Has anybody used the Rotax E Gearbox with their FS II? Any issues in
doing so? I want to keep my BRS in the usual place (above the pilot
seat) and have an electric starter that does not get in the way.
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Yes - several of us do. The gear ratio is perfect for a three blade prop
and like you say - the starter is built in and is out of the way.
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Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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| Posted: Wed Dec 12, 2007 6:02 pm Post subject: Re: E Gearbox w. a FS II |
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Here are some pictures of how we did it. Turned the rubber Lord mounts over to gain some room. Had to do that because otherwise the studs coming out the bottom of the engine fouled the airframe in the further aft position.
Got two lengths of angle iron and sat them on top of the Lord mounts. Then the stock aluminum mounting plate & engine sits on them and is slid toward the aft end of the airplane until the starter clears the back of the fuselage structure.
Probably could have done it lighter and more elegantly, but it sure is simple and bulletproof... Besides, with a 582 on a FSII, always flown solo, the couple of extra pounds is not really an issue.
In a couple of the pictures, you will also notice the extra structure we added to beef the motor mounts to handle the extra torque of the 582. Even so, we didn't get factory approval, but we did get a grudging concession that we were unlikely to wring anything apart. And that's good enough for us.
Richard Pike
MKIII N420P (420ldPoops)
FSII N582EF (582Ed'sFirestar)
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