ment of the peak overpressure of the blast wave is shown in Fig. 2.10, The Fairchild continuous strip camera is shown in position. Operation of all recording equip- ment, including the cameras measuring com vw? eee » Gh s etn ponent deflection, was controlled from one panel shown in Fig. 2.11, The blue box fiducial was mounted in a specially constructed housing in the bottom of the fuselage aft of the rear crew compartment. The hous- ing had a window racing to the rear to admit bomb light to the instrument. An external view of the installation is shown in Fig. 2.12, Instrumen~ tation for UPSHOTKOTHOLE was the same as that for IVY except for the additional wae ee ¢ measurements made on the horizontal tail. Figure 2,13 in conjunction with Table 2,2 shows the instrumentation employed, A total of 14 strain channels were recorded: two were a direct measwrement of total bend- img; six measured the - shear of individual Fig. 2,12 Housing for blue Box beneath Aft Fuselage, B-36 Spars; and the remainimg six measured the bending of individual spars. Outputs from the 12 single spar shear and vending strain bridges were combined to obtain total bending, total shear, and torsion at the three instrumented stations. 2.3.6.2 Beh? Aircraft Slast response instrumentztion of the Bed7 aircraft was limited to four measurements: two wing ver.ding moments and two accelerations, 35 hk