Jerry Hey wrote:

Paul,  do you recommend 7/8" x .049 wall tubing for the kiss engine
mount?   Also,  what is the thickness   (and length and width) of the
small plates bolted to the firewall.  Did you use 1/4 inch bolts to
attach to the firewall?     Did you make any changes from the stock
plans  as far as mount locations on the firewall?      Thanks,  Jerry

I forgot to mention the attach bolts. I used flat 1/8 inch thick square
flanges with four bolts. The flanges were reinforced on four sides with
gussets.
Then four holes were drilled in the firewall for each tube after the
mount was welded. Seems like a hard way to do it but the tubes come into
the firewall almost perpendicular making it almost necessary.
Bill Schertz used extra long 5/16th or 3/8th bolts and tubes which will
also  work fine. Take you pick.
Paul Lamar

Jerry,

My preference would be this style as Bill has configured his mount.  The
reason being it requires me to drill one hole per mount attach point versus
four.  Please size it for AN6 bolts.  Will this mount have six firewall
attach points as shown in Bill's and Paul's examples?  Be aware the front
gear strut sits in the middle of the firewall and has to have clearance in
its full range of motion.  Knowing how well I can land sometimes, it will
see its full range <G>.  I'm going to verify the firewall to prop flange
distance this morning.  I have it in my notes as 36 inches but will make the
measurement as precise as I can as I know this last measurement was before I
added the fiberfrax and stainless.  My guess is that if it is going to be
wrong, better to make it too short than too long.  I could always machine
some spacers to push the mount out a bit to give good alignment to the prop
flange.

Charlie Smith
KIS Cruiser 4021

Charlie, Jerry needs a sketch of the area around the nose gear mounting blocks
so he can put the diagonals outboard of the blocks.

Paul Lamar
 
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