From: Bdale Garbee <bdale@gag.com>
Date: Tue, 23 Feb 2021 03:49:10 +0000 (-0700)
Subject: document plans for V2 rebuild
X-Git-Url: https://git.gag.com/?p=web%2Fgag.com;a=commitdiff_plain;h=3bd0645703841cd9bc78d8924364c0192a2809ee

document plans for V2 rebuild
---

diff --git a/rockets/airframes/MehGaNuke/index.mdwn b/rockets/airframes/MehGaNuke/index.mdwn
index 2aa6ccb..fdfc016 100644
--- a/rockets/airframes/MehGaNuke/index.mdwn
+++ b/rockets/airframes/MehGaNuke/index.mdwn
@@ -110,9 +110,36 @@ The airframe is configured with two 1515-sized rail buttons, and is really
 only considered safe to launch from Terry Lee's launch trailer with 20 feet
 of very stiff 1515 rail.
 
+### Revisions for Version 2 ###
+
+Because the main airframe zippered somewhat on the first flight, and the
+ARRD released at apogee, rather than just repairing the existing airframe
+tube, we're going to build a replacement.
+
+To increase stability, the main airframe tube length will be extended from
+the original 4.5 feet to approximately 8 feet.  This will increase stability,
+allowing a reduction in nose weight.  It should also make recovery system
+loading less arduous on the rail.  This means the rocket will be closer
+to the length of an upscaled Nuke Pro Maxx instead of the original Lil Nuke.
+
+For main deployment, the ARRD is being replaced with a Tender Descender L3,
+which has the advantage that the release mechanism is orthogonal to the 
+axis of flight.  That seems important when the airframe is this heavy and
+apogee occurs at a non-nominal velocity, as in the first flight.
+
+The original build had internal 1x2 ribs and a baffle yielding a "D" shaped 
+main bay with the apogee charge gasses going up the channel without pushing
+on the main deployment bag.  For this rebuild, 3 ribs will run the airframe
+length between the 12" airframe and a concentric full-length 8" deployment
+bay, with centering rings on each end.  One sector of the rings will be
+vented to allow apogee ejection gasses to flow from the charge cups on the
+leading edge of the fin can to push the nose off without push up on the 
+main in its deployment bag.
+
 ## Design / Simulation File
 
-[mehganuke.ork](/rockets/airframes/MehGaNuke/mehganuke.ork)
+Original [mehganuke.ork](/rockets/airframes/MehGaNuke/mehganuke.ork)
+Revised [mehganuke-v2.ork](/rockets/airframes/MehGaNuke/mehganuke-v2.ork)
 
 ## Construction Log
 
diff --git a/rockets/airframes/MehGaNuke/mehganuke-v2.ork b/rockets/airframes/MehGaNuke/mehganuke-v2.ork
new file mode 100644
index 0000000..8307e0e
Binary files /dev/null and b/rockets/airframes/MehGaNuke/mehganuke-v2.ork differ