1.5 x 0.065 inch = 38 mm x 1.65 mm alu tube.

Now I understand why you guys in the US are bending and snapping the poles so much more often then the other F16 sailors in the world. I think the standard elsewhere is 40x2 mm spi poles = 35% stiffer and stronger. However your US poles are lighter, so it is a "win-some, loose-some" trade-off.

Wouter