# What's the real scale of UHU02's LEM?

Discussion in 'General Card Modeling' started by Tonino, Nov 10, 2015.

1. ### ToninoMember

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Recently I started working to an astronaut I want to add to my LM model. I started from Perdana's astronaut (from Paper Replika) and rescaled it. I've taken the UHU02's PLSS as a reference as this is a piece existing almost identical in both subjects. Now I've an astronaut proportionally scaled to the LEM but another question arises.

UHU02 wrote - in his building article - that his model is about 1:48 scale (if Google translator is right).

Really, looking at the rescaled astronaut (and recalling all the 1:48 aircraft I built in my career) it seems to me that this man is slightly bigger than expected.

So the question is: what scale is effectively UHU02's model?

I looked for a reference of the real LM and found it, but the measures are in US lenght units and I'm not very comfortable in understanding them (what are the ' and the " ? Feet and inches? Why there are two measures for every lenght, both with their own decimals? How to convert the two in only one lenght expressed in centimetres? Should I make two separate conversions and then add them? I'm not very good in geometry as you see).

I took some measures on my model (choosing the more significative ones) and tried to make some calculations. My conlcusion is that, with some approximation, the real scale of the model should be something near 1:38.

Can anyone, smarter than me with numbers, help me to confirm this value?

I add here my measurements taken on the model along with the real values taken from the original Apollo Operation Handbook.

2. ### DanBKingDan the Man

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It is 1/38 scale.!!
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3. ### DanBKingDan the Man

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Using the measurement of 31 feet (31.o') across the footpads, and your measurement from the model of 24,8cm.

Then I use this webpage to help with scaling... (My mathematics is not good either ...... )

http://jbwid.com/scalcalc.htm

Put the real world measurement in the upper INPUT box, add a scale in the upper SCALE field and then click on the CM button next to the INPUT field, and the model dimensions at your chose scale will be shown in the OUTPUT box. Play with the scale until you get as close to your model dimension as you can. (24,8cm)
Last edited: Nov 10, 2015
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4. ### ToninoMember

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Thanks Dan! Nice site you found! I'll keep the shortcut at hand.

So it's official, the LEM (and the astronaut) are both 1/38!!!

Just to write a plate with proper data to put in front of the model (now I can say: this was the real purpose!)
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5. ### NandoDesigner Extraordinaire

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... To properly show this magnificence in an exhibition , I hope
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