1/72 North American XB-70A
Two XB-70As were produced by North American Aviation toward fulfilling a US Air Force requirement for a supersonic long-range bomber to replace the B-52 by 1963. As surface-to-air missiles became more of a threat to bombers (even supersonic ones), the bomber program was eventually cancelled, and the aircraft began high speed handling and sonic boom research under NASA, the Air Force, and Stanford University in support of US SST research. Air Vehicle #2 was tragically lost in a mid air collision with an F-104, and A/V #1 was retired to the US Air Force museum in Dayton, Ohio in 1969.
The XB-70 was capable of over Mach 3 at 70,000 feet.
The AMT kit was used along with photoetch parts from Extratech and generic resin wheels purchased on eBay. Other improvements include:
Opening up the intakes and adding sheet styrene ducting walls, extending aft to engine compressor faces.
Replacing under-wing structural detail above the exhaust cones.
Replacing afterburner sections with F-104 parts and brass tubing.
Rebuilding the ECS exhaust area behind the nose gear bay.
Adding an inner pressurized cockpit window structure.
Detailing landing gear struts and wells.
Detaching and reinstalling the elevons in drooped position.
Adding a boundary layer probe and some antennae and pitot probes.
The finish is Tamiya Pure White spray overcoated with Testor’s semi-gloss lacquer. Markings came from the kit, some spare decal sheets, and a few were custom printed by Draw Decal. The model represents A/V #1 after it was turned over to NASA in 1967.
Every display case needs a Valkyrie!
34 additional images. Click to enlarge.