Ye Olde Rocket Forum - View Single Post - Centuri Viking reproduction build (and a bunch of research)

OK - so we’ve almost got everything. A 9-inch section of ST-7, a TR-7 thrust ring, FV-44 fins, a 2.25 inch long launch lug (to match what’s in the Akela-1 kits), about 32 inches of crepe paper for a streamer are all easy enough. But what about the nose cone. One can’t just buy one of those Centuri plastic nose cones. The Estes Viking cone is too pointy and will be sloppy loose in ST-7. Semroc/eRockets has a balsa rendition that’s the right shape, but....

Fortunately, in a prior similar discussion (http://www.oldrocketforum.com/showthread.php?p=150034), Chris Michielsson suggested a plastic nose cone that Apogee sells for BT-20 that actually fits ST-7 better and is similar in shape and in two sections so it could be ballasted to be the same mass as the original nose cone. (Remember that shreadvector occasionally warns us that the Estes Viking is unstable with C motors and some fin configurations).

So a complete set of parts, after selecting the nose cone.