[Metatron]

"Two completed undercarriages retained and the pilot was situated in the portside fuselage with five throttles, full instrumentation, controls for the port undercarriage members and the radiator flaps for the portside pair of engines. The second pilot, situated in the starboard fuselage, was provided with dual flying controls but no throttles and operated the starboard undercarriage members and the radiator flaps of the center engine and starboard pair of engines. A mechanic, radio-operator ang gunner were accommodated in the port fuselage and a mechanic and gunner in the starboard fuselage, the second pilot acting as navigator."

"The Warplanes of the Third Reich" by William Green; Publisher: Doubleday and Co