ORIGINAL: MAVROS
Hi all,
I am in the process of fitting the Engine bulkhead on my Xigris and just wondering if the 1/8 ply that comes with the kit is strong enough.............dont look like to me
I am using the YS175 CDI with YS mount on Alluminium frame and nose ring.
Any thoughts or advice will be greatly appreciated
thank you in advance
Mavros
Mavre,
If the ply is aircraft ply, 7 layers birch plywood, it will be fine as a firewall, But it will be heavy. If the 1/8" is lite ply, I wouldn't use it alone as firewall
A lighter alternative is 1/4" cross grained balsa/carbon laminate. I use thecross grained balsa and 3k carbon (both sides epoxied and vacuum compressed) for soft mounting engines as large as 60 cc gasoline. I insert short pieces of carbon tubing in the mounting holes and back up the holes for the blind nuts with 1/8" aircraft ply. I also cut out the center of this type of firewall to allow better breathing of the rear carbs....further firewall lightness is a side benefit
Look in my Derivative thread, somewhere around page 3for details