# Thinsat Area

### Triangular Thinsat area

Assume rounded corners for circular electrochromic thrusters.

Start with two dimensions - thruster diameter D , and thruster-to-thruster spacing S defining the sides of an equilateral triangle within the body of the thinsat. We can decompose the thinsat into three kinds of area:

• the central triangle, between the centers of the thrusters
• three outside 120° wedges of thruster

• three outside rectangular strips along the edges of the triangle
 thruster to thruster spacing S cm 17.32 15 thruster diameter D cm 5 5 Height { \sqrt{ 3 } \over 2 } S + D cm 20 17.99 Width S + D cm 22.32 20 Central Triangle area { \sqrt{ 3 } \over 4 } S^2 cm2 129.9 97.43 3 Thruster wedges area { \pi \over 4 } D^2 cm2 19.63 19.63 3 edge strips area 1.5 * S * D cm2 129.9 112.5 total area cm2 279.44 229.56

ThinsatArea (last edited 2013-01-30 21:08:33 by KeithLofstrom)