HERE IS PART 2:
Brazil and Germany are busy collaborating on a new family of sounding rockets, too. In addition to the VSB-30 (designed as a “drop-in Skylark 5 & 12 replacement” [see:
http://www.unoosa.org/pdf/pres/stsc2014/tech-44E.pdf ,
https://wiki.acervolima.com/vsb-30 ,
http://www.nielspapermodels.com/VSB30.htm , and
https://www.google.com/search?q=vsb...sclient=gws-wiz ]; they fly the VSB-30 with existing Skylark payload modules, as well as new new-manufacture Brazilian-made ones [the VSB-30 also fits existing Skylark tower and rail launchers]). In addition, they fly an S-31 Improved Orion and S-31 Improved Malemute (the S-31 is the VSB-30’s first stage:
https://space.skyrocket.de/doc_lau/vsb30.htm ). Also:
They’ve developed and use a single-stage Improved Malemute with three drag-optimized composite fins and a “boat-tail,” as well as a two-stage Improved Malemute-Improved Malemute (see:
https://moraba.de/wp-content/upload...les_2020-05.pdf ,
https://moraba.de/en/moraba/sounding-rockets/ ). Their largest suborbital vehicle, a heavy-payload two-stage guided sounding rocket called the VS-50
https://moraba.de/wp-content/upload...les_2020-05.pdf , is comparable to the U.S. Aries; its solid motors will power the VLM-1
https://en.wikipedia.org/wiki/VLM_(rocket) satellite launch vehicle. You covered its predecessor, the VS-40
https://en.wikipedia.org/wiki/VS-40 , in one of your “Rockets of the World” annual supplement comb-binder booklets. (Incidentally, a VSB-30 [see:
http://www.unoosa.org/pdf/pres/stsc2014/tech-44E.pdf ] scale model with a T-15 payload cylinder [15 mm <0.590”> in diameter; several companies sell T-15, under different designations], a BT-20 main body [both stages, the S-31 and S-30 motors], and a 3D printed 3:1 tangent ogive nose cone and a transition [I’ve found an excellent maker of these and other 3D printed model rocket parts; more about her below!] would make for a highly accurate VSB-30 scale model powered by 13 mm mini motors, 18 mm regular motors, or both [with a mini motor-powered S-31 first stage, Evan “Buzz” Nau’s gap-staged booster streamer recovery method could be used].) ALSO:
Annette Sostarich, a highly talented 3D printer (her Ebay store is called “Space Crafter,” see:
https://www.ebay.com/str/spacecraft...1&_ipg=30&_vc=1 ), makes excellent 3D printed model rocket nose cones, transitions, fin units, and detail parts. I bought some 3D printed MPC Miniroc kit parts from her recently. The parts included 3D printed duplicates (made in very fine-gauge, heat-fused plastic filament) of the original T-15 (15 mm in diameter at their bases) 5:1 tangent ogive and—for the MPC Pipsqueak kits—duplicates of the T-15 balsa elliptical noses, and:
She also 3D printed a few “test” transitions and Centuri PNC-70 (from the Li’l Herc II kit:
http://www.ninfinger.org/rockets/no...a/79cen010.html ) nose cones, *and* high-fidelity duplicates—3D printed in resin—of all of the Quest Aerospace “Customizing Parts Set” parts (see:
http://www.ninfinger.org/rockets/ca.../93quest22.html ). These injection-molded, small customizing parts (which came on plastic “trees” [“sprues”], just like the parts in plastic model car and airplane kits; some of these parts sets were aluminized, and some weren’t) were originally made by MPC, and were later also sold by AVI and by Quest, in Quest’s early years—MPC (and probably AVI and the early Quest, too—included them in their model rocket kits, as well as selling them separately). Her 3D printed duplicates of these small parts are excellent—PLUS:
Even in the small, T-15 size 3D printed nose cones, she incorporated a “sans-base” tenon (shoulder) that enables her to make all of the nose cones (and transitions) one-piece units. This enables the nose cones to be used [1] either in motor-ejecting models (such as featherweight recovery or tumble recovery, or rear-ejection streamer recovery [like in the Centuri Star Trooper and Nova
http://www.ninfinger.org/rockets/no...a/73cen00c.html kits]—or in front [or rear] motor ejecting boost-glider models such as Estes’s Falcon and Space Plane:
http://www.ninfinger.org/rockets/no...a/68estp40.html ), ^OR^...[2] in regular nose cone-ejecting, streamer- or parachute-recovery models (or nose-blow, mid-body break-apart, or motor mount rear-ejection models) in which everything is tied together by a shock cord. All of her 3D printed nose cones have—like the PNC-132 and PNC-160 shown in the 1979 Centuri catalog *here*:
http://www.ninfinger.org/rockets/no...a/79cen036.html –an “’X-cross’ tie-on attachment” for a shock cord, a single streamer shroud line, and/or the shroud lines of a parachute. Unlike with the PNC-132 and PNC-160 nose cones, though, those portions aren’t glued to the nose cones’ bases—instead, the ‘X-cross’ tie attachment is “integrally-3D printed” into the base of each of her nose cones.
I hope this information will be helpful.