GregGleason
Well-Known Member
- Joined
- Nov 13, 2009
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I wanted to try to build a better baffle. I like them because they do help to trap the larger ejection debris that can wreak havoc on the recovery system. But on this one I wanted to integrate the recovery system anchor along with this.
The design criteria was primarily centered on making it 1) heat durable, 2) shock-load durable, and 3) relative light.
The parts are relatively simple. A coupler of 2.31/32" length for a 2.60" airframe (I think I got it from Uncle Mike's Rocket Shack), 3 x 1/8" thick plywood bulkplates (Hobby Lobby), and 6 x 0.65" wooden dowels (Home Depot). The 3 dowels will serve as column between the bulkplates, with each bulkplate having 3 pockets (a depth of only 0.0125") each to make locating them a bit easier.
A 1/8" line of braided Kevlar, about 12" in length" will be placed 180 degrees from each other and anchored to the sides of the coupler with laminating epoxy and ~6 oz fiberglass. I plan to use Aeropoxy adhesive for the remainder of the joins and avoid the 5-minute stuff, mostly because I wanted a bit more working time. I am hoping for an assembly time of about 30 minutes to an hour.
Greg
The design criteria was primarily centered on making it 1) heat durable, 2) shock-load durable, and 3) relative light.
The parts are relatively simple. A coupler of 2.31/32" length for a 2.60" airframe (I think I got it from Uncle Mike's Rocket Shack), 3 x 1/8" thick plywood bulkplates (Hobby Lobby), and 6 x 0.65" wooden dowels (Home Depot). The 3 dowels will serve as column between the bulkplates, with each bulkplate having 3 pockets (a depth of only 0.0125") each to make locating them a bit easier.
A 1/8" line of braided Kevlar, about 12" in length" will be placed 180 degrees from each other and anchored to the sides of the coupler with laminating epoxy and ~6 oz fiberglass. I plan to use Aeropoxy adhesive for the remainder of the joins and avoid the 5-minute stuff, mostly because I wanted a bit more working time. I am hoping for an assembly time of about 30 minutes to an hour.
Greg