The Bell X-1 (XS-1) “Sound Barrier“ October 14, 1947
From Wikipedia, the free encyclopedia
The Bell X-1, originally designated XS-1, was a joint NACA-U.S. Army Air Forces/US Air Force supersonic research project and the first aircraft to exceed the speed of sound in controlled, level flight. This resulted in the first of the so-called X-planes, an American series of experimental aircraft designated for testing of new technologies and usually kept highly secret.
On 16 March 1945, the United States Army Air Forces’ Flight Test Division and the National Advisory Committee for Aeronautics (NACA) (now NASA) contracted Bell Aircraft to build three XS-1 (for “Experimental, Supersonic“, later X-1) aircraft to obtain flight data on conditions in the transonic speed range. The XS-1 was the first high-speed aircraft built purely for aviation research purposes and was never intended for production.
The X-1 was in principle a “bullet with wings“ that closely resembled the shape of the Browning .50-caliber (12.7 mm) machine gun bullet that was known to be stable in supersonic flight. The pattern shape was followed to the point of seating the pilot behind a sloped, framed window inside a confined cockpit in the nose. After the aircraft ran into compressibility problems in 1947, it was modified to feature a variable-incidence tailplane. An all-moving tail was developed by the British for the Miles , and first saw actual transonic flight on the Bell X-1 that allowed it to pass through the sound barrier safely.
The rocket propulsion system was a four-chamber engine built by Reaction Motors, Inc., one of the first companies to build liquid-propellant rocket engines in America. It burned ethyl alcohol diluted with water and liquid oxygen. The thrust could be changed in 1500 lbf increments by firing one or more of the chambers. The fuel and oxygen tanks for the first two X-1 engines were pressurized with nitrogen and the rest with steam-driven turbopumps. The all-important fuel turbopumps, necessary to raise the chamber pressure and thrust, while lightening the engine, were built by Robert Goddard who was under Navy contract to provide jet-assisted takeoff rockets.
Click to subscribe! #AIRBOYD #AvGeek
2 views
3427
1020
3 weeks ago 03:03:15 1
Relaxing Medieval Atmosphere - The Goblin Docks - Fantasy Medieval Music
3 weeks ago 00:06:37 1
Pink Floyd - “Another Brick in The Wall “ PULSE Remastered 2019
3 weeks ago 00:29:36 1
Templars singing in the rain - Salve Regina, Crucem Sanctam Subiit, Benedicat nos Deus
3 weeks ago 00:13:46 1
Most Delicious Roasted Eggplant Meatballs Recipe | Outdoor Cooking
3 weeks ago 00:09:00 1
MAKING A HANDMADE LEATHER DUFFEL BAG
3 weeks ago 00:03:56 1
Enrique Iglesias - Ring my bells (v. 3.0, HD)
3 weeks ago 00:05:12 1
THAT’S NOT MY NEIGHBOR: THE MUSICAL [by Random Encounters] (feat. David King)
3 weeks ago 00:00:45 1
IMPOSSIBLE 🗿🍷
3 weeks ago 00:00:00 2
LIVE 🔴 Germany vs. Poland | EURO Qualifier
3 weeks ago 00:01:52 1
Wuthering Waves NEW Trailer CN & HD Version!
3 weeks ago 00:10:03 1
King Crimson - The Court Of The Crimson King
3 weeks ago 01:24:59 1
Best Ethnic Deep House Music Mix 2024🎵DNDM, RILTIM, HAYIT MURAT, HUSSEIN ARBABI, DAVIT BARQAIA #20
3 weeks ago 00:03:53 1
Twenty One Pilots - Oldies Station (Official Video)
3 weeks ago 01:21:13 1
Alice Coltrane - Reflection on Creation and Space (A Five Year View) LP 1973 [FULL ALBUM]