Gee-H (navigation)

Gee-H, sometimes written G-H or GEE-H, was a radio navigation system developed by Britain during World War II to aid RAF Bomber Command. The name refers to the system's use of the earlier Gee equipment, as well as its use of the "H principle" or "twin-range principle" of location determination. Its official name was AMES Type 100.

Stabilized Automatic Bomb Sight

The Stabilized Automatic Bomb Sight, or SABS, was a Royal Air Force bombsight used in small numbers during World War II. The system worked along similar tachometric principles as the more famous Norden bombsight, but was somewhat simpler, lacking the

Serrate radar detector

Serrate was a World War II Allied radar detection and homing device used by night fighters to track Luftwaffe night fighters equipped with the earlier UHF-band BC and C-1 versions of the Lichtenstein radar. It allowed RAF night fighters to attack their

Mark XIV bomb sight

The Mark XIV Bomb Sight was a bombsight developed by 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

Naxos radar detector

The Naxos radar warning receiver was a World War II German countermeasure to S band microwave radar produced by a cavity magnetron. Introduced in September 1943, it replaced Metox, which was incapable of detecting centimetric radar. Two versions were

Putney Debates

The Putney Debates were a series of discussions among the increasingly dominant New Model Army – a number of the participants being Levellers – concerning the makeup of a new constitution for Britain

Seetakt

Seetakt was a shipborne radar developed in the 1930s and used by Nazi Germany's Kriegsmarine during World War II

Orange Poodle

Orange Poodle was an experimental over-the-horizon radar developed in the United Kingdom beginning in 1949 and tested experimentally in 1952 and 53. It used ground waves to follow the curvature of the Earth and allow aircraft to be detected over the sea

Recoverable expense

In commercial real estate, recoverable expenses are those expenses of running a property that are billed back to the tenants as a form of additional rent. A simple example is the electricity bill for a large complex that is then divided up among the

Radar, Anti-Aircraft No. 4 Mk. 7

Radar, Anti-Aircraft Number 4 Mark 7, or AA No.4 Mk.7 for short, was a mobile medium-range tactical control radar used by the British Army. It was intended to rapidly scan the sky and quickly indicate targets that could then be handed off to anti-aircraft

Sporothrix brasiliensis

Sporothrix brasiliensis is a fungus that is commonly found in soil. It is an emerging fungal pathogen that is causing disease in humans and cats mainly in Brazil and other countries in South America