Let me start by saying the Semroc Lune R-1 Retro-Repro is a really cool little rocket
I wanted to design a "new" two stager and wanted a sleek light weight sustainer that looked good but would fly well on some of the estimated engine simulation files that Craig created.
I just couldn't get past the good looks of the Lune R-1 so I built a booster for it. The nice thing about this design is you just toss an extra set of fins in the bag with an extra motor mount and a short 3" piece of ST-10 and it's ready to ship. The Lune R-1 sustainer is already set up to carry a payload.
I simmed it with larger Estes D and E motors and the design would lend itself well to a slight upscale to SLS proportions using LT-125 for the airframes (although there are no LT-125 or ST-13 conical nose cones listed at this time).
Minimum velocity for stable flight reached at just under 17 inches with the B14-0 booster motor Craig provided.
Length: 26.3"
Diameter: 1.04" (ST-10)
Fin Span: 4.04"
Weight: 1.75 oz
B8-0 | B7-6......1,073'......Dv 7 FPS
B14-0 | B2-5........1,143'......Dv 2 FPS
C6-0 | C6-7........1,816'......Dv 23 FPS
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__________________
Steve Naquin
TRA# 677 L2
NAR# 85518 L2
SAM# 0052
🚀 In Construction: Der Blue Maxx/Minie-Magg 5.5” & Vander-Burn MDRM Clone w/Stickershock23 Custom Decals
🚀 In Paint & Detail: USR Banshee
🚀 In Build Queue: Estes Doorknob w/Vander-Burn Rocketry Upgrade Kit [Sport Decor], Semroc Centurion-F, Semroc Egg Crate
🚀 In Repair: SLS Lil’ Hustler, SLS Aero-Dart 1969 Trim
🚀 Stay Tuned For Fall 2021 Launch Dates