>>The plans that I have are from a kit that
Lancair sold me back in 1991, which include a blueprint "Q" from the 320
kit dated 8/89 that pretty clearly show bolts through the longeron.

I have two sets of Forward Hinge Canopy plans:

 

Blueprint "Q" Revision 2, dated 8-10-89.  It indicates two mounting bolts through the longeron for the strut bracket (no lower bolt).

 

Blueprint "Q-FH" Revision 2, dated 8-10-89.  It indicates 3 mounting bolts for the strut bracket, all of which are below the longeron.  The 2 upper ones are in line with each other about 0.875 inch below the center line of the longeron.  The lower bolt through the fuselage side for the bracket is about 2.0125 below the center line of the longeron.

 

 >>Additionally, I had to add a foam and uni-directional carbon stiffener to the canopy between the forward hinge attach points because the strong "squeeze" exerted by the gas struts forces the leading edge of the canopy to severely rub against the vertical part of the forward deck canopy seal joggle just before the canopy is closed.  I use teflon tape on the joggle to assist the slide between the parts.

 

Even after the application of 42 layers of carbon fiber as per the blueprints, the canopy sides suck in slightly with the struts attached.  Enough so the outside canopy side overhang over the longeron hits the top of the longeron when closing the canopy.  I installed small ramps against the strut bracket to force the canopy out very so slightly to get proper alignment at the last moment of closing.

 

Without the gas struts attached to the canopy, the canopy is in alignment as closes as built.

 

Gary Edwards

LNC2 N21SN