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-   -   Scale Weight (https://www.rcuniverse.com/forum/rc-tanks-369/5232446-scale-weight.html)

swathdiver 01-08-2007 04:53 PM

Scale Weight
 
Howdy Fellers!

Anyone ever make their tank weigh as much as a real one? In scale of course! Wonder how it would perform, I bet the Tiger's wouldn't be as mobile as they are now weighing in at 27-28lbs!

My M26A1 weighs a little over 9lbs right now, was wondering how she would handle 23lbs, or even if the suspension could handle it!

How about the Walker BullDog, that puppy's rear is sagging with the metal gearboxes and tracks, I don't think that one would make it at 11.72lbs!

What do y'all think? What have your experiences been? Tamiya guys feel free to reply, your suspensions are certainly more rebust.

Wozwasnt 01-08-2007 08:56 PM

RE: Scale Weight
 
For the HL's you'd need more powerful motors, a circuit board that could handle them, stronger springs in the suspension, better trackpins and a damn good battery or two.

navspook 01-09-2007 10:19 AM

RE: Scale Weight
 
That's a great question! I too have wondered what the true scale weight would be for the various scales.

I have a 1/8 scale King Tiger. The original KT weighed about 70 tons (140,000 lbs.) If we were to take the scale value of 1/8 of 140,000 lbs (or, 140,000/8), we would get 17,500 lbs.

For a 1/16th scale KT, 140,000 lbs divided by 16 = 8,750 lbs).

I don't think this kind of conversion is valid. Common sense would suggest that your 1/16th scale KT should weigh in excess of a large, 4-ton truck. Kind of like an elephant on roller skates.

Does anyone have the proper conversion for weight-to-scale?

Cheers....

swathdiver 01-09-2007 10:26 AM

RE: Scale Weight
 
Full Size Weight / scale / scale / scale= Scale Weight


94,000lbs/16/16/16= 22.95lbs

16 being the scale, 1/16th.

navspook 01-09-2007 11:19 AM

RE: Scale Weight
 
Thanks, James, for the equation.

So, for a 1/8 scale King Tiger that weighs 140,000 lbs the equation would be:

140,000/8 = 17,500/8 = 2,187.5/8 = 273.44 lbs

Thus, my 1/8 KT should weigh roughly 273 lbs!

That sounds about right.

Mine weighs around 70 lbs with the two 12v batteries. Except for a few parts like the drive sprocket, idler wheels, and the aluminum track, it's made of composite materials that are strong but weigh much less than steel. This was done on purpose -- the lighter the tank, the more reliable the drive and transmission, and a smaller power plant is required.

Some manufacturers like Armortek of Great Britain make theirs in almost all metal. The result is a heavier tank and more in weight scale. (I believe their 1/6 Tiger I weighs around 165 lbs. -- the scale weight is around 230 lbs, I believe.)

So, even if you would manufacture the scale tank in all-metal, you would be hard pressed to achieve a true scale weight.

Lots to think about and thanks again for the equation.

Cheers...

GD Dave 01-09-2007 04:44 PM

RE: Scale Weight
 
My KT weighs around 11 lbs. Placed a couple of bricks on it today, came in about 19lbs. It drove OK, suspension was squished to the max. Drove over some books and other things, actually drove over these things with no problem. I just don't think the gearboxes would hold up under extreme strain or battle conditions unless the gearboxes are made bullet proof.


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