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cdewey6969(at)yahoo.com
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 Posted: Tue Jul 08, 2008 3:26 pm Post subject: Propeller |
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Can someone remind me of the differences b/w the wood prop and the compsoite prop. i am primarily interested in sshort field take-off and best prop for fastest cruise speeds. Thanks.
--- On Tue, 7/8/08, Hugh Sontag <flying(at)qdea.com> wrote:
| Quote: | From: Hugh Sontag <flying(at)qdea.com>
Subject: Re: RE: BRS ?
To: lightning-list(at)matronics.com
Date: Tuesday, July 8, 2008, 12:25 PM
<flying(at)qdea.com>
There's no question that pilots tend not to deploy a
BRS in
circumstances where it may have been the best option.
I can understand the reluctance, because it's very much
a last
resort, and we pilots are by nature optimistic and not
inclined to
lose hope.
Hugh
>In a message dated 7/8/2008 11:26:37 AM Eastern
Daylight Time,
>flying(at)qdea.com writes:
>
>
>Why would a BRS not have helped?
>
>Perhaps you could share your logic with us.
>
>A BRS is generally considered useful for un-landable
terrain and loss
>of control, unless the altitude isn't enough (300
feet AGL is the
>anecdotal minimum height), or the airspeed is too high
for deployment
>(around 150 MPH).
>
>Hugh Sontag
>
>Hugh,
>
>I am just guessing, but I think you gave the answer.
>
>Nick knows more than he is at liberty to discuss....not
to mention
>the feelings of friends. I would not suggest much of a
detailed
>answer on this medium. Part of the issue is the
incomplete nature
>of the facts and conclusions.
>
>Perhaps it is best to just take your answer..... too
low or too
>fast. However, it could also be preocupation with
trying to fly
>the plane. I cannot remember the name of the pilot
and instructor,
>but the BRS equipted plane that ran into a building in
New York City
>did not deploy either. They were too busy trying to
make the turn.
>
>There have been a significant number of aircraft WITH
some kind of
>recovery parachute that had fatal crashes anyway. BRS
publishes
>the "saves" but not the "failure to
deploy".
>
>My personal view is that the BRS makes your wife
happier....but then
>the value drops off dramatically. While I am planning
to install
>one in a hot single seat homebuilt I am redoing, I
would not do one
>in a Lightning. In my opinion, a BRS is useful if you
dont trust
>the airframe or if you simply have too high a stall
speed and fly
>over rough terrain. Otherwise it is dead
weight...with the
>exciting potential of accidental discharge!
>
>Doug Koenigsberg
>
>
>
>
>Gas prices getting you down? Search AOL Autos for
fuel-efficient
><http://autos.aol.com/used?ncid=aolaut00050000000007>used
cars.
>
>
><http://www.matronics.com/Navigator?Lightning-List>http://www.matronics.com/Navigator?Lightning-List
><http://www.matronics.com/contribution>http://www.matronics.com/contribution
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staufferm
Joined: 16 Dec 2007
Posts: 34
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| Posted: Tue Jul 08, 2008 7:52 pm Post subject: Propeller |
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The wood prop is fixed pitch. The Carbon fiber prop is ground adjustable.
Which do you want, short field/climb performance or best cruise? Very seldom
do you get both out of the same prop, there is usually a compromise
somewhere.
--
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cdewey6969(at)yahoo.com
Guest
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| Posted: Tue Jul 08, 2008 8:35 pm Post subject: Propeller |
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Mark: Fastest cruise is my main concern.
--- On Tue, 7/8/08, Mark Stauffer <mark.stauffer1(at)gmail.com> wrote:
[quote] From: Mark Stauffer <mark.stauffer1(at)gmail.com>
Subject: RE: Propeller
To: lightning-list(at)matronics.com
Date: Tuesday, July 8, 2008, 11:49 PM
Stauffer" <mark.stauffer1(at)gmail.com>
The wood prop is fixed pitch. The Carbon fiber prop is
ground adjustable.
Which do you want, short field/climb performance or best
cruise? Very seldom
do you get both out of the same prop, there is usually a
compromise
somewhere.
--
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http://www.matronics.com/Navigator?Lightning-List |
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