REFLECTOR: Catto Prop

[Dave Dent]

I flew Paul's prop on my plane last week and got some of the same numbers he 
got.  It was a bad day for flying but I did it anyway because of time.  But 
I should have waited.  There has been many more better days to fly since 
then.  But Craig thinks he would increase the pitch anyway from 76 to 82 for 
me anyway.  He said he can degrease if needed with little trouble.  Going 
the other is the problem.  So he is carving mine now.  It will be awhile 
anyway.  I am in no hurry.  Yours is working fine right now. Just not going 
as fast as I should for the power I am putting out.
Dave
----- Original Message ----- 
From: "KeithHallsten" <KeithHallsten at quiknet.com>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Tuesday, November 23, 2004 8:45 PM
Subject: Re: REFLECTOR: Catto Prop


> Dave,
>
> How goes the prop testing?  Did you get a chance to get some data with the
> 80" pitch prop on your plane?  Craig advises that the 76" pitch prop he
> originally made for you will probably be an excellent fit for my 
> fixed-gear
> XL.  I'm still months away from being ready to install the prop, but I'm
> curious about your latest findings!
>
> Keith Hallsten
>
>
> ----- Original Message ----- 
> From: "Dave Dent" <davedent at comcast.net>
> To: <dvblack at comcast.net>; "Velocity Aircraft Owners and Builders list"
> <reflector at tvbf.org>
> Sent: Tuesday, November 09, 2004 7:31 PM
> Subject: Re: REFLECTOR: Velocity Views and the Reflector
>
>
>> By the way all the information related to the Catto prop is true.  I put
> the
>> prop on his plane and I think we can do even better then he is getting.
> The
>> prop is a 67 X 80 and he's getting 2300 rpm static.  I am going to put it
> on
>> my XL and see if I can get the same.  If I can I will be changing the
> pitch
>> to 82" and see if we  can get more top end.  My pitch is only 76 and I'm
>> only seeing 172 TAS.  We both are running IO-540 260HP.  His plane 
>> weights
>> in close to 200lbs more then mine.  I will be doing it sometime next 
>> week.
>> I think we now have a very good alternative for the MT and you can print
>> that and take it to the bank.  Close to a $10K saving in building of a 
>> new
>> plane, right off the top.
>
>
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