Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

OS 46 ax VS TT pro 46

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Old 10-24-2007, 12:18 AM
  #1  
rcshawn
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Default OS 46 ax VS TT pro 46

Have a duellist, and need engines for her. I am between the os 46ax and tt pro 46, both would be piped. I want her to haul *****! I am open to other reliable engines and am willing to sacrafice power for reliability.
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Old 10-24-2007, 04:27 AM
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Default RE: OS 46 ax VS TT pro 46

i have a piped .46 ax that absolutely screams. and loud too. 2 ax's would really haul @@$. but i've seen tt 46's that have impressed me also. i would go with the ax.
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Old 10-24-2007, 05:10 AM
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Default RE: OS 46 ax VS TT pro 46

Both excellent choices!
I think they really are about the same but have diffrent sounds. If you go with the TT be sure to replace the rear bearing as it tends to frag anywhere above 16K. It's very easy to do.
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Old 03-04-2008, 08:55 AM
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Default RE: OS 46 ax VS TT pro 46

I strongly agree with vicman. i had a thundertiger and realy screams like hell. but after that vertical climb, the engine just quit. and after i tried to turn the prop, its already stocked up similar to hydro lock. but the difference is it wont realy turn. when i opened up the back case the bearing was shutered every where. specialy in my sleeve which causes scoping on my piston and sleeve. so i decided to buy the o.s 46 ax. it flies good and more quiter. so if you think your going for the tt pro just make sure to CHECK THE BEARINGS EVERY NOW AND THEN. Good luck dude. and happy flying


Regards to all

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Old 03-04-2008, 12:26 PM
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Default RE: OS 46 ax VS TT pro 46

If I had only the two choices I would go with the Thunder Tiger and use the price difference between the two to buy better bearings for the Thunder Tiger. At $95.00 the Thunder Tiger is a deal, and $15.00 cheaper as well.

Also don't count out SuperTigre for their GS45 ABC engine at only $65.00, which is a steal in my opinion

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Old 03-06-2008, 12:54 PM
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Default RE: OS 46 ax VS TT pro 46

I am a big fan of the TT pro 46. One of mine hasd been through two SERIOUS wrecks and still runs like a top, even being over ten years old. I am curious though. Where do you get a upgraded bearing for the TT for high RPM use. I plan on sticking mine in a high speed SPAD Sickle very soon so i would like to take care of this now while the engine is just laying around.

The OS is one heck of a motor as well. Either way I think you will be happy.
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Old 03-06-2008, 02:08 PM
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Mike Connor
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Default RE: OS 46 ax VS TT pro 46

I had a friend with a duellist with two TT Pro 46 engines and UT tuned mufflers. It was fast with speeds well over 100 mph. The TT is timed for higher rpm then the OS and I personally think it is a better value. There are a few of us that push them hard and do not have the bearing problems some seem to have.
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Old 03-06-2008, 02:35 PM
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Default RE: OS 46 ax VS TT pro 46

Im with Mike. I like the TT.46 Pro
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Old 03-07-2008, 01:24 AM
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Default RE: OS 46 ax VS TT pro 46

TT Pro is an awesome value- The AX is VERY over rated. I must admit you said you want to haul ass but will sacrifice power for reliability...How much do you want to sacrifice?

I dunno what your duellist budget is but neither of these engines would be near the top of my list. (Think Webra-55, or at least OS-50SX)

Keep us posted!
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Old 03-07-2008, 09:24 PM
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Default RE: OS 46 ax VS TT pro 46

http://www.pspec.com/details.asp?ProdID=77&category=7

The location of replacement bearings.
I got lucky with mine not taking the parts up into the sleeve. They just wadded up under the rod and in the back of the case.
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Old 03-07-2008, 10:37 PM
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Default RE: OS 46 ax VS TT pro 46

I'm against the grain here, I have an AX46, that is a dream, good power and just runs and runs. I let it sit for 6 months, fuel it, bump it with the starter, and it just runs. I can't seem to kill it. So I'm pushing the side of reliability, but that's just me, it may be a little slower, but it fly's time after time.
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