Where do you find this upscale kit? ThanksToday's additions are a new one from Vander-Burn Rocketry, the Cherokee-H, and a mod to make it an upscale of the Cherokee-D (1247)
The Cherokee-H is based on the Cherokee-E at a 3" diameter. It's really a nice kit. The measurements in this sim were taken from an actual sample that was provided to me. You'll also likely recognize some of the renders on the instructions from this thread (way back on the first page). Kit includes: laser cut fins and centering rings, an included baffle, slotted body tube, decals from Stickershock, 29mm motor retainer, 30" chute, 500 lb Kevlar shock cord, the required hardware for connecting up the recovery gear, and your choice of rail buttons or launch lugs (or both). Basically, except for finishing supplies, and glues, it's a pretty complete package. Rather than going with the black, blue, and white color scheme, Toby opted to go with black, red, and white to reflect the Cherokee-D's markings.
The sim has the marking's placements based on the Cherokee-E. So, don't blame me for the CP and CG markings being reversed... That's how they appeared on the "E's" instructions. For flight performance data, you'll need to delete the PBT with the "Air Fins". As the current version of OR doesn't support rail buttons, I opted to go with the launch lugs in "stock" locations.
Now for the mod to upscale it to a 3" version of the Cherokee-D (1247)
Now there's a couple of ways of upscaling, you can upscale by length or by diameter. I chose to sim the latter. The instructions state that you should remove 10" from the body tubes. For an upscale based on the diameter, I'd recommend trimming the longer (34") tube down to 30 ²⁵⁄₃₂" long, and the shorter (21.5") tube down to 10 ¹³⁄₆₄. This gives a correct length for an upscaled 18" long BT-55, and allows the bottom of the larger wrap to conceal the joint. The nosecone is not a perfect match to an upscaled PNC-55AC, but for this kit it's a good choice at 10.937" long. Those who want to make or commission an upscaled nosecone will need it to be 12.52" long. The fins are not an exact match to the Cherokee-D (as they were based on the slightly smaller Cherokee-E's fins), but again you get the right feeling with the supplied fins. The forward launch lug was placed just behind the joint in the body tubes, where I'd recommend splitting the rocket for a zipperless recovery system. Decal placement was based on the Cherokee-D (1247)'s markings.
In the near future, I'll be simming an upscale of the shorter K-47 version of the Cherokee-D. But for now, I can tell you that the combined length of the body tubes should be 37 ⁷⁄₃₂".
Thanks to Toby Vanderbeek!