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Popriv 06-02-2009 05:33 PM

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>

TedMo 06-02-2009 07:00 PM

RE: Prop Reaming Question
 
Why not measure shaft size and step size on reamer? Can't think of a better way to determine that!

N429EM 06-02-2009 09:03 PM

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

jimmyjames213 06-02-2009 11:34 PM

RE: Prop Reaming Question
 
a 12x6 will actually slow down the plane more than a 11x6 would. bigger prop = more drag

bingo field 06-03-2009 06:23 AM

RE: Prop Reaming Question
 
1 Attachment(s)
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.



jetmech05 06-03-2009 07:48 AM

RE: Prop Reaming Question
 
on a 60 I'd run a 13x7 that will slow you down

Gray Beard 06-03-2009 10:03 AM

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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