OS FS .95
 

Looking for information on this engine from people that have flown a OS .95v FS. How well has the engine performed and what about durability? With SPA approving this power plant for 2013 need all practical information and opinions available.

Thanks

Tim

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RE: OS FS .95
 

Well, I bought one to check out. I'll post some numbers when I have some.

RE: OS FS .95
 

The engine was delivered yesterday. It looks nice, hopefully I'll find time to run it soon.

RE: OS FS .95
 

I look forward to reports of how this engine runs do you turn 13.5 x 9 apc on your planes?

Tim

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RE: OS FS .95
 

Honestly I have only used OS 61 SF abc's, just looking for a change. I will test a variety of props, any request that are accessible honored, along with static thrust numbers.

On YS and Saito I like Power Master 30% Heli, would this be a good choice for this engine?

RE: OS FS .95
 

I use 30% heli Cool Power brand in my .91. A variety of props tested would be great and useful information. Hope to have reports from you soon.

Tim

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RE: OS FS .95
 

Tim, a gentleman posted test results on the SPA email list last night. I think he obtained around 400 more rpm on the 13.5x9 than he did with his 91, same fuel.

RE: OS FS .95
 

Do you know if it was a stock, non pumped 91?

RE: OS FS .95
 

Blake, that I don't know. He mentions the 95 is totally stock including the funny looking muffler with baffle in place.

RE: OS FS .95
 

I got my answer, lol.... Turns out it is a fellow club member. Small world. This guy is gonna be a real good addition to our group; he showed up after a long hiatus from the hobby and placed first in sportsman with a Trainer 60 powered by a K&B 60... First contest... Geez. :-)

Here is what he wrote:

I just ran a new OS .95 on the bench, on the third tank of fuel, I leaned it to peak a couple of times and got 9630 rpm with an APC 13.5x9 prop. I was running CoolPower 10% (17-18% synthetic oil).
This is lock, stock and barrel as it came out of the box, baffle still in the funny looking new muffler and all... I'd like to check out a bigger prop...

I had an OS .91 Surpass II w/pump on the same bench with the same prop and setup, tach'd 9240.

RE: OS FS .95
 

Blake, that would be Sam Corlett. He used to be a rep for GMP helicopters in the '80's flying for John Gorham. He has a varied background in full size and model aviation. Now he works for the FAA. Did you see both his Trainer 40 and 60? Immaculate!