U.S. WWII Sperry T-1-B Bombsight. MK XIV. Dated 1944
Here we have a nice T-1-B American version of the MK. XIV Bomb sight
Developed in 1939 the Mark XIV Bomb Sight was a bombsight used by the Royal Air Force (RAF) Bomber Command during the Second World War. It was also known as the Blackett sight after its primary inventor, P. M. S. Blackett. Production of a slightly modified version was also undertaken in the United States as the Sperry T-1, which was interchangeable with the UK-built version. It was the RAF's standard bombsight for the second half of the war.
Developed starting in 1939, the Mk. XIV began replacing the First World War–era Course Setting Bomb Sight in 1942. The Mk. XIV was essentially an automated version of the Course Setting sight, using a mechanical computer to update the sights in real-time as conditions changed. The Mk. XIV required only 10 seconds of straight flight before the drop and automatically accounted for shallow climbs and dives. More importantly, the Mk. XIV sighting unit was much smaller than the Course Setting sight, which allowed it to contain a gyro stabilization platform. This kept the sight pointed at the target even as the bomber manouvered, dramatically increasing its accuracy and ease of sighting.
To fill the demand for other aircraft, especially smaller ones like the de Havilland Mosquito, the Air Ministry began looking at US manufacturers to supply the bombsight. Frederic Blin Vose of Sperry Gyroscope expressed an interest in the design and felt he could adapt the Mk. XIV to US production methods and have it in mass production rapidly.
The Sperry T-1 was fully compatible with UK-built versions and a T-1 computer could be used with a Mk. XIV sight head or vice versa. Full production commenced at the AC plant in Flint, Michigan, in November and T-1s arrived in the UK from March 1943. The sights were sent to medium bombers like the Wellington, while UK-built versions were sent to the heavy bombers. Towards the end of the war bomber aircraft were flying higher and so the bombsight design had to be modified to allow for this change. As a result the T-B-1 was introduced in 1944 and the height range was increased to 25,000 ft.
This example is offered in good condition and is dated 1944. It was produced in the USA by AC Spark Plug Division of the General Motors Company and the data plate identifies it as SIGHTING Head Bombsight Type B-1-B. It also includes the Roll stabilizer E-1. The original spare bulb is also present as shown. The only issue I can find is that some of the rubber mounts have perished but these can easily be replaced
Used in Aircraft such as the Mosquito, Wellington, Blenheim, B-24D Liberator and the Mitchell B-25
Perspective buyers must contact me for shipping costs although the item can be collected by arrangement. No overseas shipping.
Please note. This item DOES NOT ship for free