[SML] compass chart

[Jon Lagerquist]

Those correspond to

Angle in degrees
Mil (angular mils - used in artillery and could be in fireworks)
Percentage of the quadrant (7 degrees is 12 percent of 90)
rise in 1 unit, at 7 degrees the rise in one foot is 1/8 unit, I do not 
remember if that is one unit of slope or base

Jon

On 4/21/2016 4:04 PM, Jerry Durand via Stagecraft wrote:
> I have a compass here that's a bit fancier than my old Boy Scout one.
> On the back is a chart that has 4 columns, the titles are
>
> 0-360 angle, 0-6400 angle,  % gradient, Distance
>
> example row
>
> 7, 125, 12, 1/8
>
> I don't remember anything like this chart (of course in my Boy Scout
> days we hadn't discovered America yet).  Anyone know how to use the chart?
>
> --
> Jerry Durand, Durand Interstellar, Inc.http://interstellar.com
> tel: +1 408 356-3886, USA toll free: 1 866 356-3886
>
>
>
> ____________________________________________________________
> For list information see <http://stagecraft.theprices.net/>
> Stagecraft mailing list
> Stagecraft at theatrical.net
> http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net
>

-- 
Jon Lagerquist
--