From: Bdale Garbee <bdale@gag.com>
Date: Mon, 22 Mar 2010 02:35:48 +0000 (-0600)
Subject: add K Up Yonder
X-Git-Url: https://git.gag.com/?p=web%2Fgag.com;a=commitdiff_plain;h=c531389e6988e468726ff0a106802bb2859f6d2a

add K Up Yonder
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+# K Up Yonder
+
+This is a custom, 54mm minimum diameter airframe, based on a KestreL kit from
+[3 Dogs Rocketry](http://3dogsrocketry.com/).  The name is a play on "Way Up
+Yonder" with the intended initial motor being the new 
+[Cesaroni](http://pro38.com) Pro54 6xl K300 long-burn reload.
+
+## Motivation
+
+My fundamental objective with this airframe is to "need" the high altitude 
+window at the NCR North launch site sometime in 2010.  This would have the
+consequence of raising my personal altitude record from 14141 feet AGL on an
+L730 in my Vertical Assault.  A secondary objective is to take one of our
+[TeleMetrum](http://altusmetrum.org/TeleMetrum) altimeters higher than it has
+ever gone before and demonstrate successful GPS based recovery with it.
+
+I pondered various
+airframe and other materials choices and designs over several months.  The
+introduction of the Kestrel kit with an introductory special including the
+Cesaroni Pro54 6xl case and associated tail cone rear closure was too good 
+pass up.  However, as is often the case, I won't be building this kit stock!
+
+The first flight is planned for [NCR](http://ncrocketry.org)'s Mile High
+Mayhem 2010, weather permitting.
+
+## Design Details
+
+From the kit, we get:
+
+* 54mm convolute fiberglass air frame
+* 54mm Von Karman fiberglass nose cone
+* 3/32" G10 fins
+* Cesaroni Pro54 6xl case and tail cone rear closure
+* G10 bulkheads and coupler stock
+
+To which I'll add:
+
+* [TeleMetrum](http://altusmetrum.org/TeleMetrum) avionics in the nose cone
+* 5.6oz 2x2 twill carbon fiber and 6oz glass tip to tip on fin can
+
+## Build
+
+Construction has not started yet.
+
+Measurements of parts provided with the kit for building a simulation:
+
+* Pro54 tail cone rear closure
+ * 58 grams
+ * 36mm long, 11mm straight then tapering
+ * 57mm forward OD, 48mm aft OD
+* Pro54 6xl case
+ * 469 grams
+ * 645mm long, 636mm forward of aft closure
+* 54mm convolute fin can, with fin slots cut
+ * 416 grams
+ * 808mm long
+ * 183mm fin slots starting 17mm from trailing edge
+* 54mm convolute forward air frame
+ * 169 grams
+ * 312mm long
+* 54mm convolute coupler
+ * 68 grams
+ * 130mm long
+* 54mm VK nose cone
+ * 132 grams (before smoothing)
+ * 288mm long, 67mm shoulder
+* 3 fin set
+ * 91 grams
+ * 184mm root chord, 71.5mm span
+ * clipped delta, aft 27mm is straight
+ * leading and trailing edges tapered
+* nose bulk plate
+ * 9 grams
+ * 2.5mm long, 51mm diameter, 6mm hole
+* 2 machined duplex bulkheads
+ * 13.5 grams each
+ * 3.5mm long, 54mm OD, 5mm hole
+* 2 machined aluminum shock cord anchors
+ * 7 grams each
+ * 26mm long, 13mm diameter
+* kevlar shock cord
+ * 61 grams
+
+## Publicity
+
+None yet.
+
+## Flights
+
+None yet.