From 3bd0645703841cd9bc78d8924364c0192a2809ee Mon Sep 17 00:00:00 2001 From: Bdale Garbee Date: Mon, 22 Feb 2021 20:49:10 -0700 Subject: [PATCH] document plans for V2 rebuild --- rockets/airframes/MehGaNuke/index.mdwn | 29 ++++++++++++++++++- rockets/airframes/MehGaNuke/mehganuke-v2.ork | Bin 0 -> 3861 bytes 2 files changed, 28 insertions(+), 1 deletion(-) create mode 100644 rockets/airframes/MehGaNuke/mehganuke-v2.ork 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 0000000000000000000000000000000000000000..8307e0e7322b83ae2f426f01fa8fb32eb36d7304 GIT binary patch literal 3861 zcmV+w59;txO9KQH00;;O02y6GQUCw|0000000000015yA0CI0*Yh`pUZ*ptxUF&b$ zHn#tszk-+rwh6GK5g(#RtUZe+i|%5ZCb?;W-mjEI%?Qzmvw9@;{p;_cG!IE5jWxFG zI*ko9u?`<1&*R7Qpwg><{I*HaXPp;`$*#Y{j{6n$1RMmbdE8VbLPfkt~`&-qfmI51e^u2m@THvBnb1h z&*QmfBAl~G2J?V2cdjT`ZbTv~WjJjnLZT=NDV{45$8$!tnhT}qoCK0#AvLEFnKqLj zNKREu=9)-8XPAcbK!pBW3LH}v2qBf4Hk0cHf-@%Ong)2z0vXPwj9`gj%%ty0SNUp& zA|0zLEw5)~Ug>EQ$C2lA9fflqi3lckHLxw@bH#Bag(ifHi8Cq2yub^+xi4K8*ap){ z!9fZ_1cAm3@PhE}=O04nYb1!<-2FN@xYVx7RkT*tjyG{1J67o)E-09knw z>5VFiB_9FrG-9@8kGP{5GPqute2U| zH!8ha>>j&)HmcNlqEciP<9ZfU=_jl1S&@`C*E32ScLu`0$xUq31~oYO8u*Ir^A0v& z{_lsMUtKNsQ}y1E>TFf6m)IemPuhFGTI`y-{YwDZPniZj#z_hwdbK!G`f^mD%x0B* z)>e}CVW7iSSxASa!4lkEzay=uWO13RD5;92s!9WzaCkoHSFBByMj(Wy-F2`>XnT92 z9^UIVI?aw1r_*?yX$CpgYCp0H)Z25rYZ&8Wt4nBgKiVtVX+zt@7e^a!lLHgo!1+07 z`LChP9VC^!rcrKI)u2F|@dnsp540V#ObJ*&Th3iaFzL2_U?cm! zL(?cYETW^8P}oj~Ha6tI1lJ>nF+!=l|M;jXyCAkj!qmIPWVPUjGnJ^k? z?I~GN<*^ENOV8jf+@CE!CR;c?wYVGX_=H& zq?g34ch;kh4U2TDZkDYP4Pl^ra=>SgfDIg;PrIgI%Au)Xv4CvHhvAL~(;|X5y+>8W zHue~9NnLKc)SE3|=L$~Us9`sHNzn!zd%O@R$zC-t8Iyq3y@M%TY-JmOKvegbYH6Sp zGhivd#H<(`(HGm5d^W6>VeQP~LeuhoXVVgnN7+={vPL-3xTJ#_d+NrOWDqo;x+Fd0 z3e?RV4lxQxYuBkgqtE9Z2QF&I;f>0pz`!48b?)F*OX{-LDN2WZh)1_U1CnU@#;z|} zmrd;sr^CB054WfNh?mn?d-)_BHgkA%l-PE_c}ifc{i==8Y~?Zn6aZqQflQF7@=ShxY6 zD5;-7ncVrWzg!?J*JiM97nbYzE_noDO)B}_CW!BKZmbNZa-T8{2B?W2O3Wn>B8D|* z)Q=)J_5&>^a{nEruKVz;hm(%+TUnpg6}5Zueo~S24>lA|Nfc}0#V%N`@LcXQDg_Ax z9Qr);ra~H)6pOhP7@q(7@83gagv!T|*`)gOZStt^A54`1i&Z4B#x5M_L`B+@oKUR2 z7()LbQgosOeth@y>p5>qi}N35Q3FynhJOd22o;=%X&c7oU!AMEJ^6 z;BtVyh>*BSV4z4Un5RRm*<^eZu(`Lt{w@%QA0Fa%#GQM7Nj1#IVxg(F>ENR4Ky251 zQJUTc>WsU7D@W!(awgGrxGTMG{rann*E?}tCyYDodsf&}@-vs^f70SG_BimnNzvSfC({1%jY*^wPv}66*8WQFu{P zVx#p-$I5Np0>fBkp^toZ!u4#;BsWD-?CdRvcSrWFRfjq-NWl`DLWde$Y^j2^PFCx3 z*w~KEgF}xoB`0;~(Gv*T4mt&H60qd6F3t66KTUOcga%@z&?1eEIIjj+ zG)c=Jl0fIRF7Bs2qY1e&Ww)b;)-6`;bEy{p{MD$s9FRh5P7w7UJm zi%L=yR3O{zVoku{-HG!Vm4^ueF3P+dS?Z3Ik$VbtuFldeXXEp}e_uzq9n-yweTy2w zN{)iNSf;f}-$R}g!p3KL-d&z|xU_OhcOV}>D;wxzBcA31Py0|Ln<}lN+}#8%3WABs zs<@s3W(RM}gj>cW*wTcP1~_UFF)(Wb)<5AKB0Q2Uya9{^Ahprs0nC zTIIRGwrX1D*lkUJq#sADw25??gd1J1O|&ewYk+~!LQAjZ zI7F2jQ}@$o16|VVSyHHWehor-P}Wj!>(5hcEWdj^Sk0+IUB#&l#6k5H+Nj_5oVcD* zPNXAemiSqxCam#`NT7+DsKQXEy1D*(J!8J(5x;KOsBmrXU`tnWpx8x}rujewCh#5U z;TdY)YTJNDiR0I~Lz^{PC*|>d%;6ZrBnNeAEd@JRV2iEx#=1?#wc3OOuF|ZnD=N>d zzwl9q_U6(J4Evmfx-}Z960KoTsMu-^t{KdM(PmMAceWpVVB?Wz2Lw6*%HeC+3nAvi zQ-qi)_lTY$=3yX4UIsB=Kf-WHspIz$22jND$pFF#YQJf0Aq)m=;Gz#OlsS_20EQCk z2sr{U!jmHaBOH&hQGnq9Spxu5f0DYlGs^~8@D0jLi2{va4$#H)2Eo?smjl{@PEl=j zUYINi8|W#V6U4bIfccLJVDHhtRbCc4{S$gfhwo|sTCf5vR#?{G$G4E)s-7 z{Ok6R1O{B`;TLs1hst3ONxGuzAyG->iH9U?>7nN#0Vq;F2w(le40Ad7ECT@J zLkQ;i9S4cf6aNUTmb-m;@v&orvO)hyQg;|%z`KR;U<6+PuK>iJwtwV1>=E(nJ^DUh z!7kLF5WT(?_lR1bMSA2Jw9bH*jkfxrMJ00vF^fBt@D65SK?YnRdWu<| literal 0 HcmV?d00001 -- 2.30.2