//$fn=50;
ep=0.1;

module engine() {
  intersection() {
    union() {
      rotate([90, 0, 0]) cylinder(r=1, h=3);
      translate([0, -3, 0]) scale([1, 3, 1]) sphere(r=1);
    }
    translate([0, -11.75, 0]) scale([1, 3, 1]) sphere(r=4);
  }
}

module b17Bomber() {
  color("DarkOliveGreen")
  difference() {
    union() {
      // right wing
      rotate([0, 0, -5]) translate([-ep, 0, 0]) cube([18 + ep, 4, 1]);
      rotate([0, 0, 5]) translate([-ep + 0.5, -3.90, 0]) cube([18 + ep, 4, 1]);
      translate([18.2, 0.05, 0]) cylinder(r=2.35, h=1);

      // right tail wing
      translate([-ep + 0.25, -18.35, 0]) rotate([0, 0, 4]) cube([9 + ep, 2.5, 1]);
      translate([-ep , -15.40, 0]) rotate([0, 0, -15]) cube([9 + ep, 2.5, 1]);
      translate([8.80, -16.5, 0]) cylinder(r=1.25, h=1);

      // right wing engines
      translate([6, 5.5, 0.75]) engine();
      translate([11, 4.5, 0.75]) engine();

      mirror([1, 0, 0])
      union() {
        // left wing
        rotate([0, 0, -5]) translate([-ep, 0, 0]) cube([18 + ep, 4, 1]);
        rotate([0, 0, 5]) translate([-ep + 0.5, -3.90, 0]) cube([18 + ep, 4, 1]);
        translate([18.2, 0.05, 0]) cylinder(r=2.35, h=1);

        // left tail wing
        translate([-ep + 0.25, -18.35, 0]) rotate([0, 0, 4]) cube([9 + ep, 2.5, 1]);
        translate([-ep , -15.40, 0]) rotate([0, 0, -15]) cube([9 + ep, 2.5, 1]);
        translate([8.80, -16.5, 0]) cylinder(r=1.25, h=1);

        // right wing engines
        translate([6, 5.5, 0.75]) engine();
        translate([11, 4.5, 0.75]) engine();
      }

      // fuselage
      //intersection() {
        union() {
          translate([0, 4, 1.5]) rotate([90, 0, 0]) cylinder(r=2.25, h=10);
          translate([0, 4, 1.5]) scale([1, 1.75, 1]) sphere(2.25);
          translate([0, -6, 1.5]) scale([1, 6.00, 1]) sphere(2.25);
        }

        /*
        translate([0, -17.0, 1.5]) scale([1, 1.5, 1]) sphere(16);
        translate([0, -16.25, 1.5]) scale([1, 4.0, 1]) sphere(6);
        */
      //}

      //cockpit
      intersection() {
        union() {
          translate([0, 1, 3.25]) cube([2.5, 6, 2], center=true);
          translate([0, -2, 2.85]) rotate([45, 0, 0]) cube([2.5, 2.5, 2], center=true);
          translate([0, 3.6, 3.25]) rotate([0, 0, 45]) cube([2.5, 2.5, 2], center=true);
        }
        translate([0, 1, 3.25]) cube([2.5, 10, 2], center=true);
      }

      // top gun
      translate([0, 0, 4.25]) sphere(d=1.5);
      translate([0.5, -1, 4.4]) rotate([90, 0, 0]) cylinder(d=0.4, h=1.5, center=true);
      translate([-0.5, -1, 4.4]) rotate([90, 0, 0]) cylinder(d=0.4, h=1.5, center=true);

      // tail
      translate([0, -16.50, 2]) rotate([-15, 0, 0]) rotate([0, 90, 0]) cube([7, 4, 1], center=true);
      translate([0, -10.0, 2.15]) rotate([85, 0, 0]) rotate([0, 90, 0]) cube([10, 4, 1], center=true);
      translate([0, -14.0, 3.00]) rotate([55, 0, 0]) rotate([0, 90, 0]) cube([4, 4, 1], center=true);
      translate([0, -14.5, 2.5]) rotate([25, 0, 0]) rotate([0, 90, 0]) cube([7, 4, 1], center=true);
      translate([0, -15.75, 5.80]) rotate([0, 90, 0]) cylinder(r=1.75, h=1, center=true);
    }

    translate([0, -5, -2.5]) cube([30, 30, 5], center=true);
  }
}

b17Bomber();