installed, and to receive a new gas sampling device, called a "double-~ squeegee," installed in ten aircraft, A new type gamma intensity rate meter was to be installed in the cockpit of the fighters. The B-36 was to receive a filter system for the pressurization complex, along with a "double-squeegee," and a particulate sampling device, One of the B-%6 aircraft received electronic equipment so it could be used as a backup for the Bu36 controller, In the midst of these arrangements, equipment for installation was stilt in design stage. These were the "double- squeegees," high altitude gas sampling devices. However, engineers from the Wright Air Development Center assured that they would be ready when needed, — The Ogden Air Materiel Area depot, Utah, accomplished modifications to the F-8)G samplers and planned to complete the work on 1) September 1953. The San Antonio Air Materiel Area depot, Texas, handled the work on the three B-36 aircraft, two samplers and one control aircraft, and planned to complete the work by 5 October 1953,7 There were serious delays. Ogden received the new ttdouble-squee gee" devices and mounted them but the motors and pump shafts overheated and failed, Much work was necessary to find a fix for these failures and the F~8)G sampler aircraft were delayed 99 days at the depot. The aircraft were finally finished and out of the modification facility just six days before they were to board the carrier for the Pacific ProvingGrounds. At San Antonio Air Materiel Area, meanwhile, the B-36 sampler modification program ran into trouble, The Tracerlab, Incorporated, designed the sampling devices for the big bombers but did not meet time 98 SWEH-2-003