I've been attempting to come up with dimensions for the Honest Ivan - the famous 7-engine cluster that was built by G. Harry Stine and his cadre of pioneer model rocketeers, and launched on September 30, 1958. I'm spinning this thread off of https://forums.rocketshoppe.com/showthread.php?t=20417 that inspired me to attempt to build a reasonably good facsimile of the original Honest Ivan rocket.

I'm sure that cloning the Honest Ivan is nothing new. Over the past 60+ years, I speculate that at least one person, somewhere, somehow tried to build an Honest Ivan rocket. I know that I kinda sorta wanted to build one ever since I first saw that photo of G. Harry Stine with the Honest Ivan in the Handbook of Model Rocketry. It's not a great design, nor is it particularly handsome. Clustered with a bunch of A-motors, it certainly not a high-performance design. It was one of a kind. What appeals to me is that it was the first of its kind, and that it is a big clunky rocket from the early days of model rocketry. G. Harry Stine wrote, "I don't recommend that anyone who reads this try to duplicate it." Yeah...right....

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-Wolfram v. Kiparski
NAR 28643 - TRA 15520
MTMA Section #606 President