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Old 02-12-2008 | 11:25 AM
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Default need your thoughts on an engine

Can you guys help me. I'm looking at a O.S 46 FX. The O.S web site does'nt have it listed for sale. what can you guys tell me about it.. I'm looking at it or a K&B 61. its going to go into a home made trainer that will be @ 7 to 8 lbs. then be move to a tiger 60. I wondering how much power it has. what it compares to that is on the market now. Any help would be great.. Thanks .
Old 02-12-2008 | 11:30 AM
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Default RE: need your thoughts on an engine

Os has come out with their AX series of engines: the 55 AX, 75 AX and the 120 AX. The 55 AX is the same footprint as the 46 and 50 are/were. You might want to take a look at that engine.

I have the 75 and three 1.20's and love them. They are 100% reliable and have plenty of power. Moreso than most of their counterparts.

CGr
Old 02-12-2008 | 11:33 AM
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Default RE: need your thoughts on an engine

The OS 46FX is an excellent engine and it will work great in your trainer - but it won't be enough for a Tiger 60
Old 02-12-2008 | 03:28 PM
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Default RE: need your thoughts on an engine

The 46 AX replaced the FX. Great engine but as stated by MinnFlyer not enough for the Tiger 60.
http://www3.towerhobbies.com/cgi-bin...?&I=LXFMD5&P=0
Want to save a few bucks? The Thunder Tiger Pro 46 is every bit as good as the OS 46 AX.
http://www3.towerhobbies.com/cgi-bin...?&I=LXKF97&P=0
Old 02-12-2008 | 04:01 PM
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Default RE: need your thoughts on an engine

ive got a .91FX on a Four star .60 and it is a quality engine! reliable, powerful, what more do you need?

im sure the .46 would be just as good but on a smaller scale, ideal for the trainer but you may want to go a few sizes up to around .60 size for the Tiger

good luck and happy landings!
Old 02-12-2008 | 04:10 PM
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Default RE: need your thoughts on an engine

How about a JBA .46A or JBA .56A nice engines and at a good cost. My .56 I am very happy with it. Tons of power and pretty good on the fuel. Plus it's a good looking motor.
Old 02-12-2008 | 04:18 PM
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Default RE: need your thoughts on an engine

7-8 pound trainer? How much wing area do you have holding that weight up? The weight alone puts you in the .60 size engine class for that trainer. While a .46 may fly it if you have sufficient wing area with your plan to move on to a 4 star 60 you may as well start with a .60-.75 sized engine.
Old 02-12-2008 | 06:18 PM
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Default RE: need your thoughts on an engine


ORIGINAL: millertym2000

Can you guys help me. I'm looking at a O.S 46 FX. The O.S web site does'nt have it listed for sale. what can you guys tell me about it.. I'm looking at it or a K&B 61. its going to go into a home made trainer that will be @ 7 to 8 lbs. then be move to a tiger 60. I wondering how much power it has. what it compares to that is on the market now. Any help would be great.. Thanks .
The .46 FX is the predecessor to the .46 AX and is a great sport engine. Given the weight of the planes you will be flying, however, the K&B .61 is a better choice. You should go with the K&B .61 for both your trainer and the Tiger 60
Old 02-12-2008 | 10:41 PM
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Default RE: need your thoughts on an engine

What trainer do you have or plan to get? That's a lot of weight for a 40-46 size plane. With enough power you can fly a concrete slab but you won't like the glide ratio at all.[:@]
Old 02-12-2008 | 11:48 PM
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Default RE: need your thoughts on an engine

I have a Phoenix Tiger 60 and run a Thunder Tiger 91 FS on it with a 14 x 7 prop, point it into the wind, hit the throttle and away it goes, just takes off all by itself. Nice plane, agree with the others you will need a 61 2 stroke to get that weight off the ground and you could then convert / transfer it to a Tiger 60.

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