Enlarge / USAF Boeing B-52H Stratofortress taking-off with undercarriage retracting and trailing-edge wing flaps lowered at the 1998 Fairford Royal International Air Tattoo RIAT. (credit: aviationimages.com | Getty) Glenn House and his colleagues spent more than four years making a new toilet for the B-1 Lancer. The challenge wasn't fitting the john into the cockpit (it went behind the front left seat) but ensuring that every part could handle life aboard a plane that can pull five Gs, break the sound barrier, and spend hours in wildly fluctuating temperatures.