Hi Steve,

Let's just be clear, I'm not trying to put down Carl, or Semroc. If I have a gripe with anyone, it's the people whose .rkt files on RocketReviews are just plain wrong. Fins that are clearly the wrong shape, nosecones that have profiles that don't match the real thing.

While I don't have a BBZ's fins to demonstrate this, I do have the Estes/Semroc Omega kits that I've worked on.

Based on scans (I made personally) of Estes original K-52P fins, the dimensions I've got are as follows.

Sustainer's fins:
Root Edge .. 3.125"
Span .......... 2.31"
Tip Edge....... 2.063"

Booster's Fins:
Root edge .. 3.625"
Span ............ 2.813"
Tip Edge ..... 2.563"


Compared to the Semroc Omega (KV-64)'s fins (based on a .pdf pattern provided by Randy Boadway):

Sustainer's fins:
Root Edge .. 3.1"
Span ............ 2.309"
Tip Edge ..... 2.019"

Booster's Fins:
Root edge .. 3.6"
Span ............ 2.555"
Tip Edge ..... 2.546"


Sure the differences aren't that great, but that's not what I'm trying to achieve here. I'm trying to create the definitive simulation of the kit as it originally appeared.

I'll state this again (not directed at anyone in particular)... Cloning kits that are in production is uncool. Support our vendors, if they go bust, we all lose.

I'll also toss in a thank you to Carl, Sheryl, and Bruce Mclawthorn, and Randy Boadway, as well as the people of Estes who have all provided us with so many fond memories.

Happy New Year!
Jim

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Dreaming of making the rockets I dreamed of as a kid (and then some).

"The Guide says there is an art to flying", said Ford, "or rather a knack."
"The knack lies in learning how to throw yourself at the ground and miss."

Launching is Optional... Landing? That Depends on Trees.