eps = 0.01;
center_l = 16;
-foam_w = 3;
-center_thick = 1.5;
-side_thick = 1.0;
+foam_w = 3.25;
+center_thick = 0.8;
+side_thick = 0.8;
body_w = center_l + 2*9;
front_l = 5;
side_angle = 40; // smaller is narrower part (angle from the direction of flight)
+rotate([180, 0, 0]) // print it upside down
difference() {
// main body
translate([-foam_w/2-side_thick, -body_w/2, -rear_l-center_thick])