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Old 06-02-2009 | 05:33 PM
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Default Prop Reaming Question



TTPro .61 on a Tiger 60

Looks like it will take from a 11-6 to a 12-8 prop.

Iran 2 tanks with a 11-6 prop but the guys thought it looked small so They loaned me a 12-6 for the maiden flight.
The plane has more than enough speed for me now with the 12-6. I'm more interested in slowing it down for landing.. Would a different prop help with that?

Also I bought a 12-6 and a 12-7 prop and a reamer. Is ther anything I should know before reaming?
Previously Ihad used a tapered reamer and I see this new reamer is stepped. Is it safe to assume these steps are standard sizes and one of the steps will fit my motor?
With the tapered reamer I could taper from each side until it fit. Now Ionly have the choices of the steps...

thanks

Steve</p>
Old 06-02-2009 | 07:00 PM
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Default RE: Prop Reaming Question

Why not measure shaft size and step size on reamer? Can't think of a better way to determine that!
Old 06-02-2009 | 09:03 PM
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Default RE: Prop Reaming Question

Remember, there are 2 types of shaft sizes, standard and metrics. So, be sure you're getting the correct reamer for your engine shaft size.

Also, the stepped reamers are best, as they limit the amount of slop on the shaft.

EJ
Old 06-02-2009 | 11:34 PM
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Default RE: Prop Reaming Question

a 12x6 will actually slow down the plane more than a 11x6 would. bigger prop = more drag
Old 06-03-2009 | 06:23 AM
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Default RE: Prop Reaming Question

Pick up a 12x4 or a 12x5 prop. This is the time to experiment a little, you know what range of props work, and you know the higher pitch prop works, just start experimenting with smaller pitches, one at a time. You will probably go back and forth between a couple of them when you are in the right "zone" for your flying. That Tiger is a super plane, Ihave shot touch n goes for entire tanks of fuel, another thing it was good for, take it up fairly high, and cut the throttle back to idle (works best on a really calm day, but you can do this almost any time) and see how long you can keep it in the air. This will get you really familiar with the slow speed and stall characteristics, which will help a lot judging to approach and landings.


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Old 06-03-2009 | 07:48 AM
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Default RE: Prop Reaming Question

on a 60 I'd run a 13x7 that will slow you down
Old 06-03-2009 | 10:03 AM
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Default RE: Prop Reaming Question

Then there are three blades to play with. That's sort of like going from drumb to disc breaks.

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