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HomeAircraftHelicopterHelicopter Main Discussion › TT70 vs OS70
10-14-2005 04:50 PM  12 years agoPost 1
Ironside

rrApprentice

Baltimore, MD

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Which of these engines would be better for my Raptor 60 V2 I am purchasing? I won't be doing any 3D because its going into a MD500 fuselage but I still want a good - reliable engine. I noticed there was a bit of a price difference but didn't know if the old saying of "you get what you pay for" applied here. Let me know and thanks in advance.

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10-14-2005 04:59 PM  12 years agoPost 2
Ironside

rrApprentice

Baltimore, MD

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Person, I am in Maryland as well (Glen Burnie near BWI Airport). Where are you and what field do you fly at?

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10-15-2005 10:23 PM  12 years agoPost 3
E30TECH

rrVeteran

Jefferson, New Jersey

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I had a tt39 and upgraded to an OS50.

I will never buy a TT again.

In my case, I could not get it tuned properly.

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10-16-2005 12:23 AM  12 years agoPost 4
drdot

rrElite Veteran

So. California, Orange County.

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fwiw..

We have several TT 70 engnes and MANY TT 50 engines at our field...All run great if tuned properly...We've seen more OS 70 engines lose pistons than any other, but again this is due to mis tuning...Either engine will quickly fail if not tuned correctly, and experience with airplane engines does not automatically guarantee you can tune a heli engine....

John.

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