Bill,

I had just started working on a larger R-7; in my case, I was thinking one inch to one meter scale (1/39.37). If you take the Minakov drawing and read the millimeters as inches and decimal places you get a pretty good size R-7. The math is super easy - just count over three places (from the right) and put a decimal-- there's your dimension.

For instance, the booster diameters are 2680 mm so its 2.680 inches or BTH-80 size. Or, even better, the core is 2050mm, so in my scale, its 2.05 inches or Series 20 tubing.

Attached is a fairly high-res, version of the Minakov drawing. I think its the best all-around drawing. I have a higher res version if anyone wants it, just PM me.

Attached Thumbnails

 

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NAR 79743
NARTrek Silver
I miss being SAM 062

Awaiting First Launch: Too numerous to count
Finishing: Zooch Saturn V; Alway/Nau BioArcas; Estes Expedition; TLP Standard
Repair/Rescue: Cherokee-D (2); Centuri Nike-Smoke; MX-774
On the Bench: 2650;
Dream Stage: 1/39.37 R-7