Gas Engine on Unionville Beaver  
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Gas Engine on Unionville Beaver - 9/10/2003 1:49:40 AM   
Zagi



Posts: 6
Joined: 4/9/2002
From: Garner, NC, USA
Status: offline 		Just ordered a Unionville 8ft. Radial Beaver. Noticed that many folk are putting .91 -1.20 on their Beavers. Has anyone mounted a Gas engine on the Beaver? What size gas engine would be appropriate and what modifications did you have to make to the firewall. Will I get enough power from a gas engine to tow a 3 meter glider and/or put floats on so I could take off from the water?
       Post #: 1

RE: Gas Engine on Unionville Beaver - 9/10/2003 2:25:09 AM   
seaplane



Posts: 334
Joined: 6/15/2002
From: Gibraltar, MI, USA
Status: offline 		I just finished the Unionville 8ft beaver and I put a 1.20 4 stroke on it. It has 42" floats on it and it has more power than it needs. I think a 100 4 stroke would be perfect...Seaplane

(in reply to Zagi)
       Post #: 2

RE: Gas Engine on Unionville Beaver - 9/10/2003 5:24:44 AM   
Smoky



Posts: 142
Joined: 7/18/2003
From: Meadow Lake, SK, CANADA
Status: offline 		I got the 8ft "Turbo beaver" Model.

It had an OS .60 2 stroke. bottom end for power,especially on floats.
now it has a Saito .91 Blackknight 4 stroke. it has more than enough power. almost unlimited vertical. swinging a 14x7 3 blade prop.

I can't help you wioth the gas engine part. but this should give you an idea what the plane fly's like.

Smoky.

(in reply to seaplane)
       Post #: 3

RE: Gas Engine on Unionville Beaver - 9/10/2003 5:06:32 PM   
PeterC


 

Posts: 368
Joined: 5/1/2002
From: Edmonton, AB, CANADA
Status: offline 		I recently purchased a Unionville Radial Beaver from another modeller who flew it with a G23 and the performance was great. (Very Scale Like and sounding) I was going to put a OS 120 in it until I saw a Weedeater conversion another modeller had done here. These engines were available for $20 at a surplus store near here recently. The conversion is easy and it seems to swing the right sized prop very easily. Guess whats going in my Beaver now?
Peter

(in reply to Smoky)
       Post #: 4

RE: Gas Engine on Unionville Beaver - 9/10/2003 8:00:25 PM   
Zagi



Posts: 6
Joined: 4/9/2002
From: Garner, NC, USA
Status: offline 		I went to the Horizon website to compare the weight of a G-26 to a Saito 100. Wow, 53 oz. for the Gas engine compared to 20.8 oz. for the 100. That is a huge weight difference. So the question now is are people having to add weight to the nose of the Beaver with a .90 - 1.20. I would hate to turn what sounds like a good flying lightly loaded plane into a brick because I hung a gas engine on the nose and had to add a ton of tail weight to get it to balance. Any other recommendations for gas engines that might be lighter?

(in reply to PeterC)
       Post #: 5

RE: Gas Engine on Unionville Beaver - 9/10/2003 8:57:58 PM   
BillHarris



Posts: 835
Joined: 12/20/2002
From: Jasper, AL, USA
Status: offline 		Martin Rousseau's 18% Beaver ( http://www.mraerodesign.com/ ) is designed to be used with a 38-45cc gas engine, so a gas engine is do-able. Move the avionics tailward to balance...


--Bill

(in reply to Zagi)
       Post #: 6

RE: Gas Engine on Unionville Beaver - 9/11/2003 2:52:16 AM   
seaplane



Posts: 334
Joined: 6/15/2002
From: Gibraltar, MI, USA
Status: offline 		Zagi, with the 1.20 and the floats, mine balanced without any additional weight....Seaplane

(in reply to BillHarris)
       Post #: 7

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