SR GORE At present we are scheduled wane nay ~- one of which will be Blackfoot, We have about 4,000 = 5,000' south of the present location which will be just about right for our instruments. On Cherokee, we will have stations located apparently on Dog, George and How Islands. There will be the same number of instruments used for both shots; we expect to use ten each of the three different instruments. There will be three persons in the FA, and our construction require= ments have allbeen submitted. The latter consist of ten poles at each location at distances as yet unlmown, Any questions? Q: What range will your instruments cover? A: We expect to be able to measure up to 70 calories per square centimeter per second, with a workable range of 2 to 60 calories without trouble. have been tested to withstand 25 psi overpressure. Our instruments (Mr. Ogle pointed out that most of the yields are "advertised yields", and Maloney stated that they try to allow a plus or minus 50%.) Project 8.4 = Thermal Response of Aircraft Structural - LCDR A. Julian - BudAer Panels of the Bonded Sandwich Type Project 8.4 has dual objectives: (1) the documentation of the thermal tolerance of the sandwich panel; and (2) establishment of this unknown number for delivery aircraft. There is little doubt that the critical tamperature for the Sandwich is substantially lower than the 350° F postulated for sheet stringer. Important evidence to this effect was provided recently, in UPSHOT-KNOTHOLE as ay matter of fact, by an AF experiment in which panels exposed to a Ot of only 200° suffered up to 35% separation - face to core. This structure derives all of its mechanical stability from the goodness of this bond so if we separate it, we don't have a load-bearing item any more, We think it is vital to particularize the panel response, especially in a long thermal pulse. Operationally, we plan to mount three panel groups at one station on Dog; this is a change from our plan of two days ago. We want to participate in Cherokee - and in Cherokee alone. We plan to instrument a total of 27 panels. We are going to put thermocouples for radiation incidence on this face as the exposed face and get down behind coring possibly and fasten thermocouples to the back face of the exposed side. This will be done mechanically for strength and for goodness of the electrical bond. We are going to measure temperature-time histories, using these thermocouples. Stations will be on Dog adjacent to NRDL thermal stations so that we can use their calorimetric data for correlations. We want to take pictures of the panels during the thermal pulse. We are going to restrict them in some such fashion as this at the edges here as a possible reasonable simulant to an aerodynamic load. This will be difficult to correlate but it will be better than the AF experiment which had no restrictions whatsoever. We think we can get a variation of about four to five in maximum temperature rise by using three face gauges and three paint colors, roughly a 100 to 400° F rise. - 5h = enent= = CONabaae