Paul, I converted the tif file to a bmp.  I also included a pretty straight
on shot of the front of the legacy so you can get the shape.  The firewall
measurements as well as others are below.

BTW, the distance from the firewall to the center of the front gear is
19.75" not 19.5 as Jerry reported.(what is a quarter inch among friends?)

The firewall is 41.0" at the widest point.
                        28.25" tall (vertical)
The cowl is 47.5" firewall to prop flange.

Lay a level across the top of the firewall and drop down 8.125" to the top
mount holes.  They are on 37.5" centers(apart) and centered on centerline.
Drop down 15.625" to the lower mount holes.  They are on 31.0"
centers(apart) and also centered on centerline.
Drop down 1.25" to the first pair of bolt holes for the gear leg brace.
They are on 10.0" centers and centered on centerline.
Drop down 2.25" to the second pair.  Other measurements same as 1st pair.
The gear leg center is 19.75" forward of the firewall.

Lancair tech support tells me " The offset is set into the mount 1* down and
2* right"  Turns out that this is degrees and not inches.  You will find the
drawing in the attached .bmp file.


A few days ago, I took some really rough measurements of the cowl.  They are
probably within .5" or so.

(BTW, I noticed that the front flange on the cowl is not square with the
world.  It is 13.5" in diameter and one side is farther from the firewall
than the other.  I don't have those measurements and don't remember which
side is farther forward, but it should coincide with the offset????)

We know the firewall is 41.0" x 28.25"
Forward 20" equal 39.0" x 26.5"
Forward 32" equal 37.0" x 24.75"
Forward Nose equal 29.0 x 12.0" (here is a little 3.0" diameter airscoop
below this area that picks up an additional 7.0". It is the intake air scoop
you see on so many lycomings.)
The two air openings on each side of prop are 5.0" in diameter.

Looking at these cowl measurements makes me think I may be wrong about the
thrust line.
The center line of the cowl is about 11.5" below the top of the firewall.
The center line of the cowl should hit the prop center line shouldn't it?

I just heard from Lancair on the thrust line.  Here is what they said and
the tif file is attached which I converted to a .bmp file.

Here is the Legacy thrust line diagram, and it is One degree down and Two
degrees to the right. Please be careful what you put on the LML.

Justin Hawkins
Lancair Tech Support
541-923-2233

OK Bill Thanks. I have plenty of info now.


Paul Lamar ...No rotor no motor.

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