North American Aviation Submittal Number 90 (SID 62-367-90): Tests of Apollo Heat Shield Specimens Part 1

Description

OUT OUT OUT OUT PL NO. SOURCE: North American Aviation DATE RECD. FILE ROLL NO. AVCO Corp. 6/20/63 1699 669T REMARKS: CLASSIFICATION MATERIAL POOTAGE Last test, fiberglass shear pads, not shown on film, but data listed. UN ECO 380 FOOTAGE CAMERA SUBJECT: NAA SUBMITTAL No. 90 (SID 62-367-90) TESTS OF APOLLO START ANGLE HEAT SHIELD SPECIMENS Covers a series of tests of Apollo Heat Shield specimens in 10 Megawatt plasma generator facility. Specific object of these tests was to determine the effects of metal protrusions on heat shield materials in a turbulent regime. Test specimens are shaped in the form of hollow cylinders thru which the high-velocity gases heated by the plasma generator are expelled. Frictional resistance between the walls of the cylinder and the flowing gas sets up turbulence in the flow similar to that which occurs under actual flight conditions and produces comparable high-intensity heating. First test was conducted to evaluate variation of the reference design heat shield material. Next three were measuring ablation performance and rear surface heating effects of the tension tie bolts; last test evaluated the interface between the fiberglass shear pads and the heat shield material. 10 LS Technician installing turbulent pipe sample No. AP-1349-2 over nozzle of 10 megawatt plasma generator. 30 MCU Sample retainer and control nozzle being installed. 55 MS Technician installing water-cooled control nozzle over open end of sample. MCU Installation of control nozzle. 73 LS Same, men walk out of scene. 86 Establishing shot of control console for 10 megawatt plasma genera- tor during operation. Page 1 95 MS Test director operating controls to put plasma generator into operation. of 2 126 CU Test director using microphone. 130 CU Control panel as test director's hands initiates a test run. 140 ECU "Fire" button being pushed. 147 MCU Plasma jet during test run. 159 ECU Sample No. AP-1349-2 being removed. 164 ECU Showing interior of sample No. AP-1349-2 after test. 169 CU Sample No. AP-766 during installation for nest test run. Issc (February 1962) CORROUE. L.I.. OUT OUT OUT OUT SOURCE: North American Aviation DATE RECD. FILE ROLL NO. AVCO Corp. 6/20/63 1699 669T REMARKS: CLASSIFICATION MATERIAL POOTAGE Last test, fiberglass shear pads, UN ECO 380 not shown on film, but data listed. FOOTAGE CAMERA SUBJECT: START ANGLE 176 CU Sample of No.AP-766 after test. 192 MCU Instrumented sample No. AP-763 being installed for test run. 209 CU Sample retainer being installed. 225 Test run showing plasma jet. 231 CU After burning of excess gases. 235 CU Sample No.AP-763 at completion of test. This sample was prepared with eight stainless-steel pins, two each 1/8", 1/4", 3/8", and 1/2" in diameter, inserted thru the walls of the cylinder and set flush with both the ID and OD. (More in report) 249 MCU Sample No. AP-764 being removed. Test run of this sample was identical to that of sample No. AP-763, except that the pins extend- ed 1/2" beyond the ID. (More in report) 267 CU Sample retainer and control nozzle being installed for test of sample No. AP-765. As a potential method for controlling erosion around the bolts, sample No. AP-765 was fitted with four stainless steel pins surrounded by bushings of materials known to have a higher ablation temperature than the reference material. 275 MS Plasma jet during test run of sample No.AP-765. 319 MS Technician protected against noxious fumes while removing sample No.AP-765 from plasma generator. MCU Sample No. AP-765at completion of test. 380 End of roll Page 2 of 2 139. (February 1962) CORRIGUE. L.

Collection

Records of the National Aeronautics and Space Administration

Series

Moving Images Relating to Documentary Stock Footage