Re: Curtis Reed Propeller

longmere2 · Post by **longmere2** » Tue Apr 12, 2005 10:16 pm

'Is anyone using a Curtis Reed propeller on their Ranger 200 hp engine
on the Fairchild 24? I have received some conflicting reports and
comments on the benefits or detractions on using this propeller. Any
comments? Is there a benefit of wood over metal propeller?'

norbymac20@sbcglobal.net · Tue Apr 12, 2005 10:35 pm

'I am rebuilding a 1939 F;24 that came with a Curtis Reed prop on a 225 hp
Jacobs. I don't have any idea of its merits. This plane may not fly, this
year, so I guess that I can't give any report for awhile, Norb Mc
Luckie

----- Original Message -----
From: "longmere2"
To:
Sent: Tuesday, April 12, 2005 11:16 PM
Subject: [fairchildclub] Curtis Reed Propeller

>
>
> Is anyone using a Curtis Reed propeller on their Ranger 200 hp engine
> on the Fairchild 24? I have received some conflicting reports and
> comments on the benefits or detractions on using this propeller. Any
> comments? Is there a benefit of wood over metal propeller?
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
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>

'

danMichael · Post by **danMichael** » Wed Apr 13, 2005 12:12 am

'On Tuesday, April 12, 2005, at 11:16 PM, longmere2 wrote:

> Is anyone using a Curtis Reed propeller on their Ranger 200 hp engine
> on the Fairchild 24? I have received some conflicting reports and
> comments on the benefits or detractions on using this propeller. Any
> comments?

Is the Curtiss Reed an approved installation for the Ranger? Its not
listed on the type certificate.

> Is there a benefit of wood over metal propeller?

Less weight, less likely to damage the crankshaft on a prop strike, and
you dont have to worry about engine / prop system resonant frequencies
and harmonics as much.

:Dan
:NC81323'

longmere2 · Post by **longmere2** » Wed Apr 13, 2005 10:28 pm

'Thanks for your comments. The Curtis Reed is on the plane covered
by a 337 referencing the PT 26 and Widgeon with the 6-440-C5
engine. I am aquiring a wood prop.

--- In fairchildclub@yahoogroups.com, danMichael wrote:
> On Tuesday, April 12, 2005, at 11:16 PM, longmere2 wrote:
>
> > Is anyone using a Curtis Reed propeller on their Ranger 200 hp
engine
> > on the Fairchild 24? I have received some conflicting reports
and
> > comments on the benefits or detractions on using this
propeller. Any
> > comments?
>
> Is the Curtiss Reed an approved installation for the Ranger? Its
not
> listed on the type certificate.
>
> > Is there a benefit of wood over metal propeller?
>
> Less weight, less likely to damage the crankshaft on a prop
strike, and
> you dont have to worry about engine / prop system resonant
frequencies
> and harmonics as much.
>
> :Dan
> :NC81323

'

Michael Denest · Post by **Michael Denest** » Sat Apr 16, 2005 4:07 pm

'You are better off with a wood prop. Curtiss Reed's
are known for breaking Ranger crankshafts.

Mike

--- longmere2 wrote:

>
> Thanks for your comments. The Curtis Reed is on the
> plane covered
> by a 337 referencing the PT 26 and Widgeon with the
> 6-440-C5
> engine. I am aquiring a wood prop.
>
> --- In fairchildclub@yahoogroups.com, danMichael
> wrote:
> > On Tuesday, April 12, 2005, at 11:16 PM,
> longmere2 wrote:
> >
> > > Is anyone using a Curtis Reed propeller on their
> Ranger 200 hp
> engine
> > > on the Fairchild 24? I have received some
> conflicting reports
> and
> > > comments on the benefits or detractions on using
> this
> propeller. Any
> > > comments?
> >
> > Is the Curtiss Reed an approved installation for
> the Ranger? Its
> not
> > listed on the type certificate.
> >
> > > Is there a benefit of wood over metal propeller?
> >
> > Less weight, less likely to damage the crankshaft
> on a prop
> strike, and
> > you dont have to worry about engine / prop system
> resonant
> frequencies
> > and harmonics as much.
> >
> > :Dan
> > :NC81323
>
>
>
>

__________________________________
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http://travel.yahoo.com/p-travelguide'

Bob Haas · Post by **Bob Haas** » Sun Apr 17, 2005 2:32 pm

'Have you ever seen any old pictures of a Ranger powered Aircraft with a
Curtis Reed Prop? The US Army tried them and broke many crankshafts. There
are plenty

of good wooden props to chose from. The wood props absorb the power pulses
from the crank and so last longer.

_____

From: longmere2 [mailto:longmere@alaska.net]
Sent: Wednesday, April 13, 2005 12:16 AM
To: fairchildclub@yahoogroups.com
Subject: [fairchildclub] Curtis Reed Propeller

Is anyone using a Curtis Reed propeller on their Ranger 200 hp engine
on the Fairchild 24? I have received some conflicting reports and
comments on the benefits or detractions on using this propeller. Any
comments? Is there a benefit of wood over metal propeller?

_____

Yahoo! Groups Links

* To visit your group on the web, go to:
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* To unsubscribe from this group, send an email to:
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Terms of Service.

[Non-text portions of this message have been removed]'

ranger440c5 · Post by **ranger440c5** » Mon Apr 18, 2005 7:43 am

'I don't know about the breakage history, but couldn't agree more
about the wood absorbing the pulses. I flew in a 24 w/175 and a too
short C-R....it was not a happy marraige. I don't know where or why
but there were strange noises/vibes from the engine house when power
pulled back. It wasn't comforting.
The Ranger has a 4 foot long crank and being a 6 inline has a throw
and thus a power pulse every 120 degrees. It's inherantly smooth and
easy to balance combination, unlike a v6 which will never be a
smoothie regardless of vee angle. It is this long crank that twists
and winds tight/loose with the power pulses. As the furthest journal
from the prop transmits it's power thru 5 more throws infront of
it...well there is a deal of flexing going on. The more resistance to
these torsional stresses(metal prop) the more these stresses have to
be dealt with inside the engine.
It would seem that as these engines become more difficult to obtain
correct parts and service for on a dialy basis, that one would not be
inclined to stack any odds against the engine's durability, imagined
or real.

--- In fairchildclub@yahoogroups.com, "Bob Haas"
wrote:

> Have you ever seen any old pictures of a Ranger powered Aircraft

with a

> Curtis Reed Prop? The US Army tried them and broke many

crankshafts. There

> are plenty
>
> of good wooden props to chose from. The wood props absorb the power

pulses

> from the crank and so last longer.
>
>
>
> _____
>
> From: longmere2 [mailto:longmere@a...]
> Sent: Wednesday, April 13, 2005 12:16 AM
> To: fairchildclub@yahoogroups.com
> Subject: [fairchildclub] Curtis Reed Propeller
>
>
>
>
> Is anyone using a Curtis Reed propeller on their Ranger 200 hp

engine

> on the Fairchild 24? I have received some conflicting reports and
> comments on the benefits or detractions on using this propeller.

Any

> comments? Is there a benefit of wood over metal propeller?
>
>
>
>
>
>
> _____
>
> Yahoo! Groups Links
>
> * To visit your group on the web, go to:
> http://groups.yahoo.com/group/fairchildclub/
>
> * To unsubscribe from this group, send an email to:
> fairchildclub-unsubscribe@yahoogroups.com
>
>
> * Your use of Yahoo! Groups is subject to the Yahoo!
> Terms of Service.
>
>
>
> [Non-text portions of this message have been removed]
'