This brings up a point - if you check the LS1 patterns they do not seem to be elongated to accomodate the rombodial diagonalizing... This would lead to a taller, but narrower profile (but only in a very small way). From my schooling, that would make this a slightly different airfoil than what is predicted.... I am tired, and will recheck this in the morning, but does anyone understand what I am saying? I have to stop pulling these 24 hours shifts!

M.

To: Q-LIST@...
From: leoncasper@...
Date: Wed, 30 Sep 2009 21:11:22 +0000
Subject: [Q-LIST] Re: LS1 Canard Alignment





















--- In Q-LIST@..., Jason Roadman <jason.roadman@...>

If I cut the main canard cores out of

squared blocks

The addendum that I have says "the hot-wire block sizes are exactly the same as called out in the Q-2 construction plans". This to me means that the blocks are not square but have the same tapered ends (rhombus not rectangle) where the templates attach for hot-wiring as did the GU core blocks.

and align the trailing edge of the blocks, the trailing edge

of the wing will not be perpindicular to BL0, as was the case on the GU

The trailing edge of the LS-1 spar from BL-15R to BL-15L will not be perpendicular to the fuselage center line as was the piece of foam in the same area for the GU canard. The rear surface of the LS-1 spar at BL-0 will be about 0.6" forward of the rear surface of the tubular spar at BL-15.



Hope I haven't made things less clear........

==================

Leon McAtee

canard. It will be swept forward slightly. Is that correct for the LS1?

~Jason

On Tue, Sep 29, 2009 at 10:46 AM, Sam Hoskins <sam.hoskins@...> wrote:

Jason. You cut the foam out of squared blocks, then simply align the

training edge. The sweep is defined by the templates.

Just make the trailing edge straight.

Sam

On Tue, Sep 29, 2009 at 10:53 AM, jason.roadman <jason.roadman@...<jason.roadman%40yahoo.com>

wrote:

Can anyone provide some insight into the best way to align the templates

fore and aft (to get the proper sweep) when building an LS1 canard? The

templates have holes for string alignment, but the construction notes

refer

to a method on sheet (W-4-8/26/83) and mention to disregard the hole

method.

I don't have that appendix sheet and couldn't find it in the files

section.

Does anyone have it? The notes go on to talk about a "3.5 deg + sweep aft

of

the spars at the outboard tip," but this statement doesn't make sense to

me.

I tried to search previous messages on this list, as I'm guessing someone

else has already asked the question, but I'm new to the group and

couldn't

get the search feature to find anything on the subject.

Using the string method, the trailing edge is not perpindicular to BL0 as

was the original GU canard. Can anyone comment on what the leading edge

or

traling edge sweep should be for the LS1 canard please?

Jason Roadman

Golden, CO

Q-Vair under construction

jason.roadman@... <jason.roadman%40gmail.com> <jason.roadman%

40gmail.com>

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--

Jason Roadman

Graduate Research Assistant

Room ECAE 164

Department of Aerospace Engineering Sciences

University of Colorado

Boulder, Colorado 80309-0429

roadman@...

Tel: (724) 875 8072

Fax: (303) 492 7881

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