Adding right-thrust/down-thrust to model
12-29-2003, 09:29 PM
#1
Junior Member
Thread Starter
Join Date: Aug 2003
Location: Rochester, NY,
Posts: 27
Likes: 0
Received 0 Likes
on
0 Posts
Adding right-thrust/down-thrust to model
I just placed an order for a CG Super Chipmunk and various accessories. Among these accessories was a one-piece pre-tapped OS engine mount for my OS FS-91 Surpass II four stroke. I've read that the Chipmunk requires some right-thrust and possibly some down-thrust. Do I have to be able to drill custom off-center holes in the engine mount to add the right-thrust, or is it set by the angle of the firewall? I'm asking because I'd cancel the OS engine mount order if its not going to be able to give me the required right-thrust (since the mount holes are pre-drilled).
TIA.
TIA.
12-30-2003, 10:24 PM
#3
Senior Member
Join Date: Jul 2003
Location: coal township, PA
Posts: 1,483
Likes: 0
Received 0 Likes
on
0 Posts
RE: Adding right-thrust/down-thrust to model
Just use the firewall for right thrust and shim in the down. Use the mount, I have used predrilled mounts before. They shure do make mounting engines simpler.
Mark Shuman
Mark Shuman
12-31-2003, 03:39 AM
#4
RE: Adding right-thrust/down-thrust to model
ORIGINAL: dwango
I just placed an order for a CG Super Chipmunk and various accessories. Among these accessories was a one-piece pre-tapped OS engine mount for my OS FS-91 Surpass II four stroke. I've read that the Chipmunk requires some right-thrust and possibly some down-thrust. Do I have to be able to drill custom off-center holes in the engine mount to add the right-thrust, or is it set by the angle of the firewall? I'm asking because I'd cancel the OS engine mount order if its not going to be able to give me the required right-thrust (since the mount holes are pre-drilled).
TIA.
I just placed an order for a CG Super Chipmunk and various accessories. Among these accessories was a one-piece pre-tapped OS engine mount for my OS FS-91 Surpass II four stroke. I've read that the Chipmunk requires some right-thrust and possibly some down-thrust. Do I have to be able to drill custom off-center holes in the engine mount to add the right-thrust, or is it set by the angle of the firewall? I'm asking because I'd cancel the OS engine mount order if its not going to be able to give me the required right-thrust (since the mount holes are pre-drilled).
TIA.
01-01-2004, 03:57 AM
#6
My Feedback: (1)
Join Date: Jun 2003
Location: Coffs Harbour NSW, AUSTRALIA
Posts: 2,306
Likes: 0
Received 1 Like
on
1 Post
RE: Adding right-thrust/down-thrust to model
I have had a couple of Carl Goldberg Chipmunks in the past with OS91FS.
I don't recall having to add any spacers or make any modifications but just follow the instructions.
These are excellent flying planes, - like most if not all Carl Goldberg planes
I don't recall having to add any spacers or make any modifications but just follow the instructions.
These are excellent flying planes, - like most if not all Carl Goldberg planes
