A "Lockhart Prop" Update...

[Bob Pastorello]

Dean, I have NO doubt it will turn the 13.  My 12 was turning 8160 on
15%, and it wasn't screaming lean.  Pipe was actually long-ish at
19.75.  I plan on doing a 13 just to see....

Bob.

--- Dean Pappas <d.pappas at kodeos.com> wrote:
> Sounds good Bob,
> Actually the full 13-inch pitch offered great braking on a 140 RX
> with long pipe, but the engine/pipe/and needle all had to be spot-on
> to get the desired performance. That's when Dave started de-pitching
> the prop. I'm curious as to what RPM your 160 turns the 12" pitch
> prop, and as to whether the 160 will turn the stock 13" with
> authority. That will be super quiet.
> Dean  
> 
> -----Original Message-----
> From: Bob Pastorello [mailto:emc2300 at yahoo.com]
> Sent: Tuesday, May 25, 2004 9:56 AM
> To: discussion at nsrca.org
> Subject: Re: A "Lockhart Prop" Update...
> 
> 
> My error, Dave corrected me - it IS a 15.75 x 12.  And turns quite
> well
> on the 160.  Love it.
> 
> Bob.
> --- vicenterc at comcast.net wrote:
> > Bob:
> > 
> > I also using the "Lockhart Prop" on my Hydeout with same good
> > results.  I started to fly Masters this year and I was looking to
> > reduce the down lines the speed of the Hydeout.  I also was looking
> > for a hot and humid day and the engine (OS 140 RX) was able turn
> the
> > prop very well, and I didn't have problems.  
> > 
> > I flew my Focus and tried the prop.  I really liked the "constan
> > speed" effect on the Focus also.  The one I am using is 15.75x11
> > (original 15.75x13).  Probably you have the Mintor 1.7 or OS 160
> > since you are using 15.5x12.  It is 15.75 or 15.5?  I think I have
> > 15.75.
> > 
> > Vicente Bortone
> > 
> > 
> > 
> > 
> > 
> 
> > ATTACHMENT part 2 message/rfc822 
> > From:    "Bob Pastorello" <rcaerobob at cox.net>
> > To:    "NSRCA" <discussion at nsrca.org>
> > Subject:    A "Lockhart Prop" Update...
> > Date:    Tue, 25 May 2004 02:10:40 +0000
> > 
> > This past weekend, I enjoyed the challenge (ahem) of attempting to
> > fly in the most incredible turbulence, gusts, and changes in
> > direction of wind during a pattern contest that I can recall.  The
> > first thing I made note of on practice day was that the APC 17 x 12
> > Std was WAY too fast on the Arresti (11 lbs), so I had to try the
> > Lockhart Twister....bolted on at the motel on Friday night...
> >     Saturday - early enough to rudely awaken all the sloths in the
> > motor home (Team A/S, you there??), I managed a quick test flight. 
> I
> > was happily surprised to clearly see what I was after.  Good
> > acceleration - not nearly as rapid on the bite as a 2 blade Std,
> but
> > plenty good - and really exceptional braking.  The three blader
> just
> > offerred this very smooth dynamic brake that really made it easier
> to
> > manage things.
> >     My thanks to Dave Lockhart for doing his re-pitch, and my plea
> to
> > Fred Burgdorf to make a mold.  The 15.5 x 12 three blade is a
> > wonderful setup...mine was turning about 8150 on Magnum 15%,
> slightly
> > less on two other brands I was able to run side by side.  I was
> very
> > surprised to actually see 120 rpm difference on a prop of this
> load.
> >     Anywho - if you guys are looking for a great braking prop that
> > still operates in the torque band of our motors - contact Dave
> > Lockhart....(Lance - I'm sure he can replace your modified
> > prop...<G>)
> > 
> > Bob Pastorello
> > rcaerobob at cox.net
> > www.rcaerobats.net
> > 
> > 
> 
> 
> =====
> Bob Pastorello 
> rcaerobob at cox.net
> emc2300 at yahoo.com
> 
> 
> 	
> 		
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=====
Bob Pastorello 
rcaerobob at cox.net
emc2300 at yahoo.com


	
		
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