CalTech/NOTS Tiny Tim

[GAE_Flak]

CalTech/NOTS Tiny Tim

A comienzos de 1944 la Armada de los EEUU necesitaba un arma antibuque poderosa que permitiera al avi?n atacante mantenerse a distancia de las armas de denfensa antiarea. Los veloces cazabombarderos no pod?an soltar torpedos a la velocidad (elevada) que debian aproximarse y los cohetes existentes a la fecha no eran lo suficientemente potentes contra navios pesados. En Marzo el CalTech demostro que un cohete AS de gran tama?o era posible de desarrollar y la Armada colabor? en la fabricaci?n del arma con prioridad alta. El resultado fue un cohete de 11,75 pulgadas de di?metro que se denomin? TINY TIM (peque?o Tim, obviamente un mote ir?nico por su tama?o). La media impar se escogi? porque se asimilaba el di?metro estandar del proyectil (bomba) de 500 libras, SAP (Semi-Armor Piercing). La bomba era la cabeza de guerra del cohete y su cuerpo una secci?n de tuber?a de petr?leo est?ndar.

El primer TINY TIM fu? disparado desde tierra a fines de abril de 1944 y el primer lanzamiento a?reo se registro a bordo de un TBF Avenger el 22 de junio ese a?o. Un cohete tan grande como este no pod?a ser disparado directamente desde el avi?n ya que el chorro de combusti?n afectaba la estructura del mismo, es por ello que el cohete ca?a unos metros antes de encender su motor. De esta manera el cohete se encendia, alcanzando en su vuelo los 885 km/h, con un alcance efectivo de 1500 metros.

Length   3.12 m (10 ft 3 in)
Wingspan   0.91 m (3 ft)
Diameter   29.8 cm (11.75 in)
Weight   583 kg (1285 lb)
Speed   885 km/h (550 mph)
Range   1500 m (1640 yds)
Propulsion   Solid-propellant rocket; 13.3 kN (3000 lb) for 1 s
Warhead   68 kg (150 lb) high explosive

[GAE_Castor]

Como les fue en la pr?ctica?

[GAE_Flak]

"Aparentemente" bien ya que se mantuvo en servicio muchos a?os despues de finalizada la 2GM.

[422nd_Adler]

Hay algun registro de q hubiera sido usado en la 2GM???

[GAE_Condor]

mejor todavia, hay que buscar algun video en la mula...

[GAE_Flak]

Algunos comentarios que encontr? en la web (poco y nada)

In the last months of the conflict, the F4U also carried the oversized 29.8 centimeter (11.75 inch) "Tiny Tim" unguided rocket on the wingroot pylons for cracking Japanese strongpoints. The Tiny Tim had to be dropped on a trapeze pylon to clear the propeller; qualifying the rocket for carriage proved troublesome and a number of Corsairs were lost in the process.

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The largest of the U.S. forward-firing aircraft rockets was the "Tiny Tim", which was 10.25 feet long and had a diameter of 11.75 inches. Each rocket weighed about 1,284 pounds and was primarily launched against fortified pillboxes and bunkers on the Japanese home islands.

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?Project Danny involved the four fighter squadrons of Marine Aircraft Group 51 (MAG-51) in the fall of 1944 to conduct an attack against the V-1 rocket launching sites in Europe.? ?VMF-511, -512, -513, and -514 were equipped with an assortment of F4U-1, FG-1A, and F3A-1 aircraft.? ?These were all basically F4U-1s but manufactured by different companies.
The V-1 rockets being employed by the Germans lacked any controls to hit a specific target and had been wrecking havoc in England with their indiscriminate attacks.? ?Washington wanted the launching sites destroyed and the task was assigned to the NavAirLant Staff.? ?Working with the Marine Corps staff at MCAS Cherry Point, North Carolina, the plan was developed to arm Marine Corps Corsairs with the 11.75? Tiny Tim aircraft rocket, load them aboard CVEs [escort aircraft carriers] and transport them to the North Sea where they would be launched against the targets.? ?At this time there were no Marine Corps squadrons aboard carriers, nor were any contemplated to be carrier based.? ?The Tiny Tim was the largest aircraft rocket with a warhead developed from a 500-pound semi-armor-piercing bomb.? ?The four newly formed squadrons commenced the special training for the mission at several of the outlying fields.
Commander Moorer? (later Admiral Thomas H. Moorer) was the NacAirLant staff officer for the project who was sent to Washington to brief the top civilian and military authorities including General George C. Marshall, Chief of Staff U.S. Army. The briefing commenced without the General who was quickly brought up to date, by one of his staff generals, upon his arrival. General Marshall listened, but on hearing that Marine aviators would make the planned attacks, raised his hand. Rising to his feet he moved towards the door and said something to the effect ?that?s the end of this briefing.? ?As long as I?m in charge of our Armed Forces, there?ll never be a Marine in Europe.?? ?It can only be assumed that the Army did not want a repetition of the Marine publicity of World War I.
The project was cancelled and the first three squadrons went on to become the first Marine Corps fighter squadrons to be assigned to carriers during WWII.?

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In mid-1945, VMB-612, based on Iwo Jima, flew specially modified PBJ-1Js (B-25) capable of carrying the 11.75-inch Tiny Tim rocket. Two Tiny Tim rockets could be carried, one on each side of the fuselage above the bomb bay doors. Launch was by free fall, and ignition was actuated by a lanyard that was pulled after the rocket had dropped a certain distance. After launch, the bomb bay doors could be opened for conventional bomb drops. These Tiny Tim rockets were used during nighttime strikes against southern Japan in the interim between the dropping of the second atomic bomb on Japan and the final agreement of surrender on August 14.

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VMB-612 was formed at MCAS Cherry Point on 1 October 1943. Beginning in January 1944, the squadron began experiments in low-altitude night-radar operations and alternated operations between NAAS Boca Chica and MCAAF Camp Lejeune for tactical training. In August 1944, the squadron departed the U.S. for Kagman Base on Saipan Island (15.10N, 145.45E) in the Mariana Islands arriving on the island in late October. The air echelon flew to Saipan via MCAS Ewa, Territory of Hawaii where the PBJ-1Ds were modified by the installation of an AN/APN-4 airborne Loran receiver, underwing HVAR rocket launchers synchronized to an AN/APQ-5 airborne radar bombsight, and AN/APN-1 airborne radio altimeters calibrated to give accurate reading between 500 and 1,000 feet (152 and 305 meters). Between 13 November 1944 and February 1945, the squadron flew anti-shipping strikes using rockets against Japanese ships and land targets in the Bonin and Volcano Islands area. After the invasion of Iwo Jima in February, the squadron undertook search missions to the Marcus Island area (24.18N, 153.58E) three nights a week, a mission of 1,450 miles (2,334 km). It was during this period that the squadron began to experiment with the Tiny Tim rocket. The subsonic Tiny Tim had a diameter of 11.75 inches (29.8 cm), a length of 10.25 feet (3.12 m), a firing weight of 1,284 pounds (582.4 kg), and a warhead with an explosive charge weighing 150 pounds (68.04 kg). The Marines modified a Mk 51 bomb rack to carry the rockets and installed two on the belly of the aircraft at the bomb bay. On 1 March, the squadron received three PBJ-1Js and in April 1945, the squadron moved to South Field on Iwo Jima (24.47N, 141.20E) in the Volcano Islands to continue anti-shipping missions. Now within striking range of the Japanese Home Islands, VMB-612 began bombing targets on Kyoto on 10 April. Anti-shipping missions at night, consisting of three PBJs, were unproductive and in the middle of April, daylight raids against the Home Islands commenced. While on Iwo Jima, the squadron had conducted tests and training using the Tiny Tim rocket; the first combat mission with the Tiny Tim, an anti-shipping strike, was flown by a PBJ-1J on the night of 21/22 July from Okinawa but no targets were found. The squadron's final move began on 28 July Chimu Airfield on the eastern shore of Okinawa Island (26.31N, 127.59E) in the Ryukyu Islands. Operations with the Tiny Tims began in earnest on 11 August with one sortie followed by three sorties on 14 August and six sorties during the night of the 14th. With the Japanese surrender, hostilities ceased at 1600 hours Tokyo time on 15 August 1945. The squadron continued experimentation with the Tiny Tims for the rest of the month.

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AD-1: The initial single seat version of the Skyraider was powered by a 2,500 hp Wright R-3350-24W engine. The initial specifications were as follows: Wing Span:? 50 feet Length:? 38 feet, 4 inches Weight:? Empty, 10,508 lb; Maximum 13,924 lb?
Armament:? ?Bombs one 2,000 lbs Depth bomb one 650 lbs Mine one 2,000 lbs Torpedo one MK 13-3 Ordnance on Wings: ombs two 2,000 lbs Depth Bombs two 650 lbs Mines two 1,000 lbs Rockets two 11.75 in. Tiny Tim twelve HVAR Torpedo two MK 13-3 Guns two 20 mm (M3)

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The fourth rocket, Tiny Tim, involved an 11.75-inch motor for the 500-pound, semiarmor-piercing bomb providing a round slightly heavier than a 1 ,OOO-pound bomb. Combat introduction by the carrier Franklin at Okinawa failed because a Kamikaze devastated the ship before it made a Tiny Tim strike. Hence, Tiny Tim?s WW II use was very limited.

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Japanese bombers hit the fleet carriers Wasp (CV-18) and Franklin (CV-13) on 19 March with devastating results. The Wasp lost 200 men killed, but the Franklin ?hit by two bombs while refueling and rearming her planes on the flight deck?suffered terrible damage and the deaths of more than 700 men. Raging fires detonated the exposed ordnance, including new 11.75-inch Tiny Tim rockets. Hundreds of men were blown into the sea. ?The Franklin was a huge mass of explosions, flames, and a tremendous column of smoke,? recalled Commander Thomas H. Morton, gunnery officer of the battleship North Carolina (BB-55), steaming astern of the stricken carrier. ?There must have been hundreds of her crew in the water . . . some had jumped, some had been blown over, and some were badly injured.?


Para quien busca videos http://www.aircraftfilms.com/f4ucorsair.htm

[GAE_Flak]

[GAE_Balker]

Grande el Skyraider  ;D
Parece mentira que haya sido dise?ado en la WWII.

[GAE_Castor]

QUE AVION EL SKYRAIDER!!!!

Cuando lo usaron en Vietnam lloraban lo yanquis por no haber fabricado m?s....

[GAE_Flak]