Gee
E44347
Gee was a World War II-era British radio navigation system that enabled Royal Air Force bombers to determine their position and improve bombing accuracy, especially during night operations.
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
World War II military technology
→
hyperbolic navigation system → radio navigation system → |
| accuracy |
on the order of a few hundred yards at typical ranges
→
|
| advantage |
enabled accurate navigation at night
→
enabled accurate navigation in poor visibility → |
| alsoKnownAs |
GEE
→
|
| component |
airborne receiver
→
ground-based master station → ground-based slave stations → |
| countryOfOrigin |
United Kingdom
→
|
| developer |
Royal Air Force
→
Telecommunications Research Establishment → |
| frequencyBand |
VHF
→
|
| function |
allowed aircraft to determine their position
→
improved bombing accuracy → |
| historicalSignificance |
improved effectiveness of RAF strategic bombing campaign
→
one of the first operational radio navigation aids for bombers → |
| inspired |
post-war hyperbolic navigation systems
→
|
| introduced |
1942
→
|
| limitation |
effective range limited by line-of-sight
→
susceptible to German jamming → |
| measurementMethod |
display of time differences on cathode-ray tube
→
|
| notableUser |
RAF Pathfinder Force
→
|
| operatedBy |
RAF ground stations
→
|
| operationalPrinciple |
hyperbolic radio navigation
→
time-difference-of-arrival measurement → |
| operator |
air navigator
→
|
| periodOfUse |
1942–1945
→
|
| primaryUse |
bombing navigation
→
night bombing operations → |
| range |
approximately 300 miles over the UK
→
reduced range over enemy territory → |
| signalType |
pulsed radio signals
→
|
| status |
obsolete
→
|
| successor |
GEE-H
→
LORAN → Oboe → |
| theatreOfUse |
European theatre of World War II
→
|
| usedBy |
Royal Air Force
→
|
| usedByBranch |
RAF Bomber Command
→
RAF Coastal Command → RAF Transport Command → |
| usedInConflict |
Second World War
→
|
Referenced by (1)
| Subject (surface form when different) | Predicate |
|---|---|
|
Royal Air Force Bomber Command
→
|
usedNavigationAid |