View of the fireball from nuclear test shot "Whitney," the 22nd full-scale nuclear test of Operation Plumbbob. Flash lights the pre-dawn darkness of Yucca Flat. The "Whitney" device was detonated atop a 500 foot tower. ID Source(s) DOE - NNSA/NSO -- Photo Library.
"Owens," the tenth shot of Operation Plumbbob, is fired at an altitude of 500 feet from a plastic balloon at 6:30 am civilian time on July 25, 1957. The nuclear test yields 9.7 kilotons (equal to 9,700 tons of TNT). A brilliant flash gives way to an orange fireball which quickly begins to cool and churn skyward. Mushroom cloud forms fast. Cameraman slate at beginning of clip identifies the shot as Owens.
A scientist makes presentation of the Project MX770.Technicians work at launch station. RTV-A-5 missile is taken and kept in a supersonic wind tunnel for some tests.Another technician takes XSSAM-4 missile from its pack and assembles it prior to its placement in supersonic wind tunnel. A machine shows movement of needle from 0 to 8.
Test fire of Navaho missile XSM-64 under the XSM-64 Five Flight Program is shown. XSM-64 stands vertically on the launch-stand. The missile is fired. Thrust of the missile on the stand shakes it. As the missile moves, it's parabolic path is visualized. Clear trail of fire at tail end of the missile is seen as the missile is fired. Engine is ejected as missile approaches earth.
XSM-64 stands vertically on the launch-stand. The missile uses two chambered liquid fuel engine. As the missile is test-fired thrust of the missile shakes the stand. The missile moves in parabolic path. A trail of fire at tail end of the missile is seen as the missile is fired. Engine ejects as missile approaches downwards.
The 10th Annual Washington International horse race at Laurel Racecourse (Route 198 & Racetrack Road Laurel, MD 20725) in Maryland. A shot from starter's gun begins the horse race. Horses gallop fast on the racecourse. Nearly 31,000 people gather to watch the race. Two horses run close towards finish. Kelso with Eddie Arcaro up finishes second. The Venezuelan horse finishes third, prior to the Russian horse. The race is won by T.V. Lark in a record period of 2.26.50 minutes. Women in the crowds cheering after T.V. Lark won the race. The prize for winner is 70 thousand dollars.
CRITICALPAST.COM: About Us | Contact Us | FAQs - How to Order | License Agreement | My Account | My Lightboxes | Shopping Cart | Advanced Search | Featured Collections | Website Terms & Conditions | Privacy Policy ©2026 CriticalPast LLC.
License Agreement |
Terms & Conditions |
Privacy Policy
©2026 CriticalPast LLC.