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60º–360° audible mass notification coverage over areas up to 14 km 2 (5.4 sq mi) LRAD devices include hand-held devices, as well as those mounted on helicopters, motor vehicles and ships. [5] The parameter "ka", which is the wave number multiplied by the speaker radius, is often used to characterize sound source directivity. For this source ...
The CoAX 2D/2R was originally known as the FLIP 2 (Fly In Perfection) and is a derivative of the FLIP 1, a conventional helicopter with a main and tail rotor.[1]The CoAX 2D/2R was designed to comply with the European Class 6 microlight helicopter rules, including the category's maximum takeoff weight of 450 kg (992 lb).
Bristol attempted to market a civilian variant of the helicopter, designated the Type 192C. The 192C would have had seats for 24 passengers and was aimed at intercity services. [ 5 ] To demonstrate the aircraft's potential, Bristol chief test pilot Charles "Sox" Hosegood set the London–Paris and Paris–London speed records in May 1961 in a ...
Bell announced its new project after the Bell 429 and Bell V-22, the super medium Bell 525, previously it was known as Project X or Magellan. The Helicopter is overall designed for trips of 50 to 500 nautical miles, and has a 5-blade main rotor powered by twin engines, digital controls and Garmin G5000H screen, with planned seating for 16-20 people. [3]
Data from Bell Helicopter, International Directory of Civil Aircraft, Aerospace-Technology [unreliable source?] General characteristics Crew: 2 Capacity: 7 passengers / 2,960 lb (1,343 kg) internal load Length: 37 ft 6 in (11.43 m) Height: 10 ft 6 in (3.20 m) with standard skids Empty weight: 3,881 lb (1,760 kg) Max takeoff weight: 6,550 lb (2,971 kg) Powerplant: 2 × Pratt & Whitney Canada ...
The OH-6A helicopter (serial number 65-12917) was supplied by the U.S. Army for Hughes to develop the NOTAR technology and was the second OH-6 built by Hughes for the U.S. Army. A more heavily modified version of the prototype demonstrator first flew in March 1986 (by which time McDonnell Douglas had acquired Hughes Helicopters).
Tandem-rotor helicopters, however, use counter-rotating rotors, with each cancelling out the other's torque. Therefore, all of the power from the engines can be used for lift, whereas a single-rotor helicopter uses some of the engine power to counter the torque. [1] An alternative is to mount two rotors in a coaxial configuration.
The Eurocopter, later Airbus Helicopters AS565 Panther is the military version of the Eurocopter AS365 Dauphin medium-weight multi-purpose twin-engine helicopter.The Panther is used for a wide range of military roles, including combat assault, fire support, anti-submarine warfare, anti-surface warfare, search and rescue, and medical evacuation.