KitLog pro

Powered By Kitlog Pro v2.0

Bruces S-19 Build Log
' style=
Date:  7-22-2013
Number of Hours:  8.00
Manual Reference:  
Brief Description:  Started building a fiberglass tip

Started building a fiberglass tip for a wing tip mounded VOR/Glidslope/Localizer antenna (Archer Sport Antenna Model 4). I'm going to vacuum bag and room temperatue cure the laminate to reduce the weight.
I have two fiberglass materials, the first is some fabric I have from my Navy days 37 years ago. It cures out to 0.015 inches per ply thickness. The second is fabric I bought at West Marine. It cures out at 0.0075 inches per ply. I used the thicker Navy fabric for the 45 degree plys and the west marine fabric for the 0/90 degree plys. I am using West Marine resin with the fast hardener. The skin ply lay-up ended up being 3 plys thick (0/90)/(+/-45)/(0/90) for a laminate thickness of 0.03 inches thick. The aluminum skin I am replacing is 0.016 inches thick. The fiberglass skin is about the same stiffness and about 10% lighter. I bought a sheet of Aluminum from Lowes lay up on, and covered it with a thick plastic sheet. I am using a thin tight weeve ployester fabric from the local fabric shop for a seperator ply, a layer of the Navy glass fabric for the breather ply and thin 3 mil plastic sheet from Lowes for the vacuum bag. the bag is sealed to the layup plate with duct tape. I cut the three plies of fabric using the aluminum skin as a template, placed them on a sheet of plastic poured the resin on the glass frabic put a sheet of plastic over that and squeegeed out the resin. then cut the laminate to size (1" excess), peeled the plastic sheet off and laid it on the layup table. Seperator over that, breather over that, an old rag for a vacuum path to the vacuum tube and baged over that.
' style=

layup table with aluminum skin

layup table with aluminum skin

' style=

plastic sheet over the layup table

plastic sheet over the layup table

' style=

All material cut

All material cut

' style=










Copyright © 2001-2024 Matronics. All Rights Reserved.