[NSRCA-discussion] triangulation trimming
Dan Venables
danven at telus.net
Tue Mar 18 07:54:39 AKDT 2008
I was wondering how long this thread on trimming would take to finally hit here?
----- Original Message -----
From: Karl G. Mueller
To: NSRCA Mailing List
Sent: Tuesday, March 18, 2008 9:45 AM
Subject: Re: [NSRCA-discussion] triangulation trimming
Vicente,
"WC" actually is the short form of "Water Closet".
That's what the early Toilets were called.
Karl G. Mueller
kgamueller at rogers.com
----- Original Message -----
From: vicenterc at comcast.net
To: adriancwong at earthlink.net ; NSRCA Mailing List
Sent: Monday, March 17, 2008 10:04 PM
Subject: Re: [NSRCA-discussion] triangulation trimming
WC = toilet. I wonder how many went and check.
--
Vicente "Vince" Bortone
-------------- Original message --------------
From: adriancwong at earthlink.net
"WC", huh? I haven't heard that word since I've moved back from Hong Kong in the early 90's.
May be I should try the knife edge on a vertical down line, instead of doing it horizontally?
-----Original Message-----
From: vicenterc at comcast.net
Sent: Mar 17, 2008 7:00 PM
To: adriancwong at earthlink.net, NSRCA Mailing List
Subject: Re: [NSRCA-discussion] triangulation trimming
That is called Coriolis accerelation. That is why the water closets flush to the right in the North hemisphere and to the left in the South hemisphere (looking the water closet from above). If going down straight you are close to the ecuator. If this do not happens as described the water closet needs to be trimmed.
--
Vicente "Vince" Bortone
-------------- Original message --------------
From: adriancwong at earthlink.net
I think Bryan is hiding in his wind tunnel trying to duplicate the same condition.
I don't think it was my digits. It's probably between the earth's gravitational pull and soething in the northern hemisphere. I bet the plane will do the exact opposite if I fly it in Australia ... .-)
-----Original Message-----
From: Derek Koopowitz
Sent: Mar 17, 2008 3:36 PM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] triangulation trimming
I think he wishes it was his thumbs... :)
The push to the belly was more than the pull to the canopy... the pull was very slight.
On Mon, Mar 17, 2008 at 3:24 PM, krishlan fitzsimmons <homeremodeling2003 at yahoo.com> wrote:
I was going to tell Adrian his thumbs cause this..
Just kidding of course Adrian..
C
Nat Penton <natpenton at centurytel.net> wrote:
Where is Bryan when you need him
----- Original Message -----
From:
To: "NSRCA Mailing List"
Sent: Sunday, March 16, 2008 10:17 PM
Subject: Re: [NSRCA-discussion] triangulation trimming
> Bryan,
>
> What cause the plane to pull to the belly on one rudder, and to the canopy
> on the other rudder during knife edge.
>
> Thx,
>
> Adrian
>
> -----Original Message-----
>>From: shinden1 at cox.net
>>Sent: Mar 16, 2008 7:17 PM
>>To: NSRCA Mailing List
>>Subject: Re: [NSRCA-discussion] triangulation trimming
>>
>>Lance you need to find out exactly where the wing inc . is.
>>I think if you move your c/g back a little it will help take some of the
>>up trim out But you prob need more pos inc, in the wing so we need to know
>>where you are at right now to determine exactly where to go
>>Bryan
>>---- Lance Van Nostrand wrote:
>>> Bryan,
>>>
>>> The discussion list moves faster than I can try this stuff out. Too bad
>>> I
>>> have to work...
>>>
>>> I first only moved my CG forward significantly and have improved overall
>>> tracking. It was windy Saturday and wind penetration were good.
>>> Bryan's
>>> suggestion was correct on CG movement to make this improvement. However
>>> with the forward CG (and resultant uptrim) it pulls to the canopy
>>> slightly
>>> on downlines. At this point I noticed that during inverted flight,
>>> rudder
>>> input caused a pull to the belly (plane rose). This was weird. I then
>>> raised the incidence 2 turns and it fixed the inverted flight problem
>>> but it
>>> seemed to make the canopy pul! l worse . Interestingly, KE flight was not
>>> noticeably affected.
>>>
>>> The other affect is that inverted 45 downlines drop toward earth faster
>>> than
>>> upright 45s (which track nicely). Before this change, both 45s were
>>> fine.
>>>
>>> Is this the expectation?
>>>
>>> --Lance
>>>
>>> _______________________________________________
>>> NSRCA-discussion mailing list
>>> NSRCA-discussion at lists.nsrca.org
>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
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>
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Chris
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