Today's Message Index:
----------------------
1. 02:12 AM - Re: Best climb... (PATRICK LADD)
2. 03:13 AM - Re: Re: best lift to drag speed. (PATRICK LADD)
3. 04:59 AM - Tire Kickers and other scum.... (Edward Steuber)
4. 10:23 AM - Re: Re: best lift to drag speed. (David Paule)
5. 12:13 PM - Re: Re: Re: best lift to drag speed. (Richard & Martha Neilsen)
6. 01:50 PM - seafoam? (ul15rhb@juno.com)
7. 02:05 PM - Re: seafoam? (Vann Covington)
Message 1
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| Subject: | Re: Best climb... |
--> Kolb-List message posted by: "PATRICK LADD" <pj.ladd@btinternet.com>
If I am not mistaken it is generally trying to stretch the glide that causes
the most serious problems.>>
Hi Larry,
you are not wrong. A few years ago their was a local chap who did just that.
Not only did he kill himself but he broke a perfectly good Spitfire which
had nothing wrong with it. (Except that the engine had stopped of course)
Cheers
Pat
pj.ladd@btinternet.com
Do not archive
Message 2
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| Subject: | Re: best lift to drag speed. |
--> Kolb-List message posted by: "PATRICK LADD" <pj.ladd@btinternet.com>
<<I think the most important speed is the speed that keeps one flying
and not stalling. Usually, in my case anyhow, I am too low to worry
about best glide distance and minimum rate of decent>>
Hi John,
Yes, I agree. The whole question is pretty acedemic from 1000ft. Just fly
the plane.
Cheers
Pat
pj.ladd@btinternet.com
Do not archive
Message 3
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| Subject: | Tire Kickers and other scum.... |
--> Kolb-List message posted by: "Edward Steuber" <esteuber@rochester.rr.com>
Hey Jon,
Boy , you got a good education on that one...Sounds familiar though...I
have come to the conclusion there are some sick puppies out there that get
extreme pleasure in making honest people cynical.....They just keep pleading
and sucking you in..
Before I deal with anybody when I am selling whatever , the first
one with cash or certified check ( confirmed at the bank) is the new owner. They
can leave a deposit , but if someone else shows up with the bucks , it is gone
and the deposit is refunded. Needless to say , I have never had anyone give
me a deposit...I have volunteered to deliver but now think that is a mistake....let
the new owner experience the "thrill " of getting a new plane home intact
!
Don't worry, sounds like a good machine and it will sell....
Cynical ED in Western NY
Message 4
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| Subject: | Re: RE: Re: best lift to drag speed. |
--> Kolb-List message posted by: "David Paule" <dpaule@frii.com>
John,
I've numbered your points below so that I can respond to them.
1. No, best L/D is faster than minimum rate of sink. Please draw the
parabolas I described and see.
2. It'll generally be close to that, but depends on the prop. In fact, with
the drag of an idling prop, the best L/D speed decreases over that of the
airplane with no prop - so in flight testing, the power condition is pretty
important.
3. It's based on the whole airplane and engine and prop combination. The two
major factors are overall drag and wingspan. In fact, knowing overall drag,
wingspan, engine and weight, you can make a good estimate of any airplane's
performance.
4. Oh, yeah! Absolutely. Full agreement here.
5. With a power plane, getting close to L/D is good. Not stalling is even
better. No need to worry about minimum sink speed unless you're soaring.
Dave Paule
Boulder, CO
FSII
=+=+=+=+=+=+
David,
I'm sorry but you seem to have lost sight of what has been said.
1. L/D max gives you minimum rate of descent when power is reduced.
2. L/D max gives you best rate of climb with power applied.
3. L/D max is based on the airfoil not on the engine/prop configuration.
4. L/D max is determined by flight testing and varies with several
variables.
5. Any speed above the stall speed is good, but the speed that gives you
L/D
max (minimum sink) is a good number to remember.
John Williamson
Message 5
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| Subject: | Re: RE: Re: best lift to drag speed. |
--> Kolb-List message posted by: "Richard & Martha Neilsen" <NeilsenRM@comcast.net>
I think we have pushed this discussion well past the record formally held by
seefoam.
Rick Neilsen
Redrive VW Powered MKIIIc
Do not archive
----- Original Message -----
From: "David Paule" <dpaule@frii.com>
Subject: Kolb-List: RE: Re: best lift to drag speed.
> --> Kolb-List message posted by: "David Paule" <dpaule@frii.com>
>
> John,
Message 6
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--> Kolb-List message posted by: "ul15rhb@juno.com" <ul15rhb@juno.com>
-- "Richard & Martha Neilsen" <NeilsenRM@comcast.net> wrote:
I think we have pushed this discussion well past the record formally held by seefoam.
Rick Neilsen
Redrive VW Powered MKIIIc
Did I hear something about Seafoam?
Hey, in all seriousness, I had Seafoam soaking in the front cylinder of my 447
for 3 weeks because the weather has been terrible here on weekends. I got concerned
one night, 2 weeks ago, when the temps rose to the 70's during the day after
being at freezing during the evening hours. The outside of the engine was
sweating with the warmer air when the garage door was opened. I got concerned
whether the Seafoam would protect the cylinder as it gets filled up with the
stuff when I give it the treatment. If any water gets inside, the rings could
rust in place if the lube doesn't protect it.
Last Sunday, before starting, I moved the prop to check for any kind of resistance
and found none. I proceeded to start the engine and blow out the Seafoam.
It blew the usual white smoke for 5 minutes. Now both cylinders are whistle clean
as I previously did the rear cylinder 5 weeks ago.
Ralph
Original Firestar
(Mr Seafoam)
Now includes pop-up blocker!
Only $14.95/ month - visit http://www.juno.com/surf to sign up today!
Message 7
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--> Kolb-List message posted by: "Vann Covington" <vann_covington@ncsu.edu>
Love that Seafoam! Let's talk about it!
----- Original Message -----
From: <ul15rhb@juno.com>
Subject: Kolb-List: seafoam?
> --> Kolb-List message posted by: "ul15rhb@juno.com" <ul15rhb@juno.com>
>
>
> -- "Richard & Martha Neilsen" <NeilsenRM@comcast.net> wrote:
> I think we have pushed this discussion well past the record formally held
> by seefoam.
>
> Rick Neilsen
> Redrive VW Powered MKIIIc
>
>
> Did I hear something about Seafoam?
>
> Hey, in all seriousness, I had Seafoam soaking in the front cylinder of my
> 447 for 3 weeks because the weather has been terrible here on weekends. I
> got concerned one night, 2 weeks ago, when the temps rose to the 70's
> during the day after being at freezing during the evening hours. The
> outside of the engine was sweating with the warmer air when the garage
> door was opened. I got concerned whether the Seafoam would protect the
> cylinder as it gets filled up with the stuff when I give it the treatment.
> If any water gets inside, the rings could rust in place if the lube
> doesn't protect it.
>
> Last Sunday, before starting, I moved the prop to check for any kind of
> resistance and found none. I proceeded to start the engine and blow out
> the Seafoam. It blew the usual white smoke for 5 minutes. Now both
> cylinders are whistle clean as I previously did the rear cylinder 5 weeks
> ago.
>
> Ralph
> Original Firestar
> (Mr Seafoam)
>
> Now includes pop-up blocker!
> Only $14.95/ month - visit http://www.juno.com/surf to sign up today!
>
>
>
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