From: ZOG43Lyon@aol.com
Date: Sun, 3 Nov 2002 09:53:32 EST
Subject: Re: Clarification of "Peanut" scale, please?


In a message dated 11/2/2002 10:24:13 AM Eastern Standard Time, 
shumphrey@att.net writes:

> Tom-
>  Lila-
>  
>  Can you please clarify the size restrictions on "Peanut" Scale, please? 
>  The term "overall length" is pretty clear but "body diameter" is not. 
>  I'm sure this sort of thing is well known to many people, but I have 
>  never entered a Peanut Scale model.
>  
>  Does body diameter mean the airframe, but not including any 
>  protuberances such as fairings, antennae, ullage rockets, interstage 
>  seating, etc.? As an example: The Iris rocket has a ring "clamp" around 
>  the base of its nose cone. If the Iris airframe was modelled at exactly 
>  2 cm diameter (yes, including paint!) the clamp would be about 2.1 cm 
>  diameter and about 1 mm height. I would think this meets the intent of 
>  the Peanut Scale rule--does it?
>  
>  Thanks!
>  
>  Steve Humphrey
>  
Steve,
To answer specifically about the IRIS, the airframe of the rocket motor would 
be the max diameter. The nose cone ring clamp, fin can, launch lugs would all 
be detailing. And to answer everyone and to put forth a clarification for 
others to read.....

Feel free to repost this on contest-roc, r.m.r., scale-roc... etc.
Cut, paste, copy, print and attach to Pink Books...

To define the 2cm max dia. for Peanut Sport Scale will be the largest 
AIRFRAME diameter necessary to build a sport scale model. Items such as 
interstage clamps, fairings, strap-on boosters, launch lugs, antennae, fin 
cans... and the like will be considered as detailing. The 2cm max can be 
either a payload section (such as Trailblazer-II, Delta, Ariane, Titan-III, 
and other like examples...), or the largest rocket body diameter of 
multistaged rockets (such as Argo/Javelin, RAM-B, Nike-Cajun, Aerobee, and 
other like examples)

Now...
Since there are many other types of  "non-circular" rockets that can be 
modeled, it will be almost impossible to cite the max dia for each individual 
one. Better judgement on the part of the modeler AND judges will necessitate 
what can and cannot be entered as a Peanut Sport Scale
Examples of these would be...
Space Shuttle (Energia-Buran), either with or without booster. In the case of 
including the booster, the max dia would be the External Tank. In entering 
the Shuttle alone, the max would be measured at the vertical and horizontal 
body at the center (wings, tail, engine fairings would be considered 
deatiling)

Atlas... the main rocket body would be the max, the two side engine fairings 
and conduits would be detailing. The exception would be if the payload body 
is the widest dia.

Conical shaped rockets such as the Russian N-1 or Apollo-LES, the widest max 
would be measured at it's base.

With so many possibilities, I couldn't cite each and every one. Use your 
better judgement, OR ASK!

Tom Lyon
NAR Contest Board

P.S. I'm including the rest of the NAR Contest Board and the NAR Trustee CB 
Liason in this reply