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John Bolding
Joined: 23 May 2006
Posts: 281
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 Posted: Sun Sep 07, 2008 9:04 am Post subject: Slats again ad nausium |
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I KNEW this would get all wound up again so at the risk of getting pitched
off the list I would like to point out a couple of things that have been
found out by TESTING, not just reading about it in the Zenith brochure.
You are partially correct in your statements.
The CG WILL change as you remove 13# that is ahead of the CG. Easy to
figure where the CG now lies and a log book entry is required.
It is a little more involved when discussing the new center of lift however.
We have been led to believe, by reading the information that Chris has
published on the subject, that the slats DO provide lift at cruise angles
of attack. Everybody bought into that notion until Gilpin (and others after
him, including me) discovered that pitch trim settings did NOT change from
back to back flights with the only difference being that one was WITH slats
and one was WITHOUT slats.
I know this has been duplicated on several 701's but I have seen no info on
801's or other airplanes equipped with slats.
I don't know if that test in itself is definitive (I'd bet big money that it
is) but it certainly casts doubt on the notion that the slat is doing
something for you at cruise.
Damn I hope we haven't gotten off on another month talking about slats !!!
LO&SLO John
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royjp(at)yahoo.ca
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| Posted: Sun Sep 07, 2008 10:48 am Post subject: Slats again ad nausium |
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John, I don't see any risk of you getting pitched off this group ! Flicka is wayyyyyyyyyy ahead of you. lolll
Please do not archive
Jean-Paul Roy
--- En date de : Dim, 7.9.08, John Bolding <jnbolding1(at)teleshare.net> a écrit :
[quote]De: John Bolding <jnbolding1(at)teleshare.net>
Objet: Re: Re: Slats again ad nausium
À: zenith701801-list(at)matronics.com
Date: dimanche 7 Septembre 2008, 12 h 59
[quote]--> Zenith701801-List message posted by: "John Bolding" <jnbolding1(at)teleshare.net> I KNEW this would get all wound up again so at the risk of getting pitched off the list I would like to point out a couple of things that have been found out by TESTING, not just reading about it in the Zenith brochure. You are partially correct in your statements. The CG WILL change as you remove 13# that is ahead of the CG. Easy to figure where the CG now lies and a log book entry is required. It is a little more involved when discussing the new center of lift however. We have been led to believe, by reading the information that Chris has published on the subject, that the slats DO provide lift at cruise angles of attack. Everybody bought into that notion until Gilpin (and others after him, including me) discovered that pitch trim settings did NOT change from back to back flights with the only difference being that one was WITH slats and one was WITHOUT slats. I know this has been duplicated on several 701's but I have seen no info on 801's or other airplanes equipped with slats. I don't know if that test in itself is definitive (I'd bet big money that it is) but it certainly casts doubt on the notion that the slat is doing something for you at cruise. Damn I hope we haven't gotten off on another month talking about slats !!! LO&SLO John ---
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lrm(at)skyhawg.com
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| Posted: Mon Sep 08, 2008 6:05 am Post subject: Slats again ad nausium |
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Talking about them again is a good thing. Lots of new people and old one with bad memories. If we didn't start repeating ourselves, we would run out of things to say. Larry N1345L
Jean-Paul Roy wrote: [quote] [quote]John, I don't see any risk of you getting pitched off this group ! Flicka is wayyyyyyyyyy ahead of you. lolll Please do not archive Jean-Paul Roy --- En date de : Dim, 7.9.08, John Bolding <jnbolding1(at)teleshare.net> (jnbolding1(at)teleshare.net) a écrit : De: John Bolding <jnbolding1(at)teleshare.net> (jnbolding1(at)teleshare.net) Objet: Re: Re: Slats again ad nausium À: zenith701801-list(at)matronics.com (zenith701801-list(at)matronics.com) Date: dimanche 7 Septembre 2008, 12 h 59 --> Zenith701801-List message posted by: "John Bolding" <jnbolding1(at)teleshare.net> (jnbolding1(at)teleshare.net) I KNEW this would get all wound up again so at the risk of getting pitched off the list I would like to point out a couple of things that have been found out by TESTING, not just reading about it in the Zenith brochure. You are partially correct in your statements. The CG WILL change as you remove 13# that is ahead of the CG. Easy to figure where the CG now lies and a log book entry is required. It is a little more involved when discussing the new center of lift however.. We have been led to believe, by reading the information that Chris has published on the subject, that the slats DO provide lift at cruise angles of attack. Everybody bought into that notion until Gilpin (and others after him, including me) discovered that pitch trim settings did NOT change from back to back flights with the only difference being that one was WITH slats and one was WITHOUT slats. I know this has been duplicated on several 701's but I have seen no info on 801's or other airplanes equipped with slats. I don't know if that test in itself is definitive (I'd bet big money that it is) but it certainly casts doubt on the notion that the slat is doing something for you at cruise. Damn I hope we haven't gotten off on another month talking about slats !!! LO&SLO John ---
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