From f165298afe00182b962ed7fb5b1d806f542e6cec Mon Sep 17 00:00:00 2001 From: Bdale Garbee Date: Sat, 7 Oct 2017 10:24:51 -0600 Subject: [PATCH] some mass data --- rockets/research/2017-test-12.mdwn | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/rockets/research/2017-test-12.mdwn b/rockets/research/2017-test-12.mdwn index 58d4411..24ebc6a 100755 --- a/rockets/research/2017-test-12.mdwn +++ b/rockets/research/2017-test-12.mdwn @@ -19,15 +19,15 @@ Simulation says this is a 57% L-1366 with 3804 Ns total impulse, 797 psi max,

Neglected to re-weigh grains after trimming and before epoxying into the -liner. +liner. These were the pre-trim masses: -* Grain , g gross, g net, 4.5" long -* Grain , g gross, g net, 4.5" long -* Grain , g gross, g net, 4.5" long -* Grain , g gross, g net, 4.4375" long -* Grain , g gross, g net, 4" long +* Grain 1, 590g gross, 574g net, trimmed to 4.5" long +* Grain 2, 594g gross, 578g net, trimmed to 4.5" long +* Grain 3, 592g gross, 576g net, trimmed to 4.5" long +* Grain 4, 584g gross, 568g net, trimmed to 4.4375" long +* Grain 5, 580g gross, 564g net, cut to 4" long -Total of g propellant, vs g simulated. +Total propellant load thus somewhat less than 2860g. ## Results ## -- 2.30.2