Jet blast deflectors range in complexity from stationary concrete, metal or fiberglass fences to heavy panels that are raised and lowered by hydraulic arms and actively cooled.
12.
The X-47B also operated with a jet-blast deflector on deck for the first time, allowing it to conduct takeoffs without disrupting operations taking place behind it.
13.
The jet blast deflector lies flush with and serves as a portion of the flight deck until the aircraft to be launched rolls over it on the way to the catapult.
14.
As an aircraft is taxied onto the catapult, the wings are spread and a large jet blast deflector ( JBD ) panel rises out of the flight deck behind the engine exhaust.
15.
Thus it was decided to use a take-off method that did not require catapults by building up full thrust against a blast deflector until the aircraft sheared restraints holding it down to the deck.
16.
The guns were moved to the very tip of the nose in a separate compartment made of heat-resistant steel and provided with a special blast deflector chamber to deflect the blast gasses away from the engine inlets.
17.
In October 1998, she entered a six-month maintenance and upgrade period at North Island, returning to sea in April 1999 . During the maintenance period, a jet blast deflector collapsed, severely injuring two sailors.
18.
These modifications included jet-blast deflectors ( JBDs ); an optical landing system ( a British innovation ); greater aviation fuel capacity; stronger decks, elevators, and catapults; and ultimately an angled flight deck.
19.
A "'jet blast deflector "'( JBD ) or "'blast fence "'is a safety device that redirects the high energy exhaust from a jet engine to prevent damage and injury.
20.
In addition to catapult launches at varying power levels, a three-week test plan included dual-aircraft jet blast deflector testing and catapult launches using a degraded catapult configuration to measure the effects of steam ingestion on the aircraft.
