From: Bdale Garbee Date: Thu, 10 May 2012 22:58:41 +0000 (-0600) Subject: update X-Git-Url: https://git.gag.com/?p=web%2Fgag.com;a=commitdiff_plain;h=5f6940e40475fc2059c608e0c496a73a10939d7b update --- diff --git a/rockets/airframes/YikStik3/YikStik3.ork b/rockets/airframes/YikStik3/YikStik3.ork index 3616cc0..687814e 100644 Binary files a/rockets/airframes/YikStik3/YikStik3.ork and b/rockets/airframes/YikStik3/YikStik3.ork differ diff --git a/rockets/airframes/YikStik3/index.mdwn b/rockets/airframes/YikStik3/index.mdwn index cada025..4d696e4 100644 --- a/rockets/airframes/YikStik3/index.mdwn +++ b/rockets/airframes/YikStik3/index.mdwn @@ -26,7 +26,8 @@ embedded in the glass layers made for us by Jeff Lane of ## Design Details -* 98mm [Performance Rocketry](http://performancerocketry.com) G-10 convolute glass air frame +* 98mm [Performance Rocketry](http://performancerocketry.com) G-10 convolute glass air frame +* 98mm [Performance Rocketry](http://performancerocketry.com) G-12 filament-wound glass couplers * 75mm [PML](http://www.publicmissiles.com) phenolic motor mount * [Shock Wave Rocketry](http://shockwaverocketry.com/) fiberglass 98mm Von Karman 6:1 nose cone * custom fins, using 3/16 inch birch plywood laminated with carbon fiber @@ -63,7 +64,8 @@ LiPo battery, and a power switch. The TeleScience board supports connection of up to 12 NTC thermistors along with other capabilities. -Installing the electronics in the fin can bay was .. interesting. More later. +Installing the electronics in the fin can bay is a *huge* challenge due to the +restricted space between the MMT and airframe. ## Build @@ -74,9 +76,10 @@ The nose cone was custom fabricated by Jeff Lane at [Shockwave Rocketry](http://shockwaverocketry.com), with thermistors embedded. The fins are 3/16 inch birch ply, tapered on the leading and trailing edges, -then covered with one layer of 5.7 oz 2x2 twill carbon fiber and a layer of +then covered with two layers of 5.7 oz 2x2 twill carbon fiber and a layer of 6 oz glass as a sanding veil, all vacuum bagged with West Systems laminating -epoxy using a kitchen food saver appliance. +epoxy using a kitchen food saver appliance. The two CF layers are rotated +45 degrees from each other. We're moving from the Giant Leap Rocketry 98mm Magnaframe-based Dynawind to G-10 glass tubing this time around. Dynawind is lighter and strong enough, @@ -91,8 +94,7 @@ recovered from 2YikStik's wreckage. All rings and bulkheads were cut using a CNC milling machine from 3/8 inch birch plywood. The fin forward and leading edge rings are made from 3/4 inch -thick assemblies made by laminating two such rings with wood glue, to provide -sufficient depth for milled fin slots. +thick birch plywood, mostly to provide sufficient depth for milled fin slots. Will add a pointer to build photos here once they are available.