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'121.5 MHz' - Austrian Air Force QRA demo - Typhoons check Hercules - RIAT 2022 (Saturday)

A pair of Austrian Air Force Eurofighter EF2000 Typhoon's from the Überwachungsgeschwader (Surveillance Squadron) based at Zeltweg and a Lockheed C-130K Hercules from theLufttransportstaffel (Air Transport Squadron) at Linz-Hörsching, carry out a 'Quick Reaction Alert' (QRA) Demonstration on the Saturday of the The Royal International Air Tattoo at RAF Fairford. This was the RIAT debut for this role demonstration - an exciting display sequence, with a pair of Typhoons scrambling from RAF Fairford to intercept the C-130K Hercules simulating an intruder, with orders to force it to land. Tasked exclusively with the air defence of Austria, the Typhoon fleet is officially known as the EF2000 within the Austrian Air Force, who operate 15 aircraft, which are all based at Zeltweg Air Base. The Austrian fleet of three C-130K aircraft were all previously flown by the Royal Air Force and are all now based at Hörsching Air Base. This display was awarded The RAFCTE Trophy by the organisers of The Royal International Air Tattoo as the best flying demonstration by an overseas participant. The Eurofighter Typhoons were flown by Captain Gerald Gradauer & Captain Alen Kesic, with the Lockheed C-130K Hercules flown by Captain Joachim Eder and Warrant Officer Andreas Thalhammer. 121.5 Megahertz (MHz) VHF is the main frequency monitored by Air Traffic Control worldwide for use by civil aircraft in the event of an in flight emergency, such as a hijacking and is the frequency used by both the intercepting and aircraft in distress when communicating with one another. The frequency is also known as VHF 'Guard' or 'International Air Distress' (IAD). For the Military 243.0 MHz—the second harmonic of VHF guard—is used. This is also known as Military Air Distress (MAD) or UHF Guard. Both guard frequencies can be used by any aircraft in distress or experiencing an emergency and in addition it can be used by air traffic control to warn aircraft if they are about to fly into restricted or prohibited airspace. Aircraft will also be contacted on 'Guard' when intercepted by air defence aircraft, to ask for identification and intentions and to pass on instructions. In the UK, 121.5 MHz is monitored by the Royal Air Force Distress and Diversion cells (known as "D&D") at the London Terminal Control Centre and the Shanwick Oceanic Control, from a nationwide network of antennas. Depending on the aircraft's altitude and location, the personnel in the centres may be able to use triangulation to determine its exact position which can be useful to the pilot if the aircraft is lost or "temporarily unsure of position". Locating beacons - Older emergency locator transmitters (ELT) transmit on 121.5 MHz in case of impact. Newer ELTs transmit on 406 MHz, with a low power beacon on 121.5 MHz for local homing. Satellites listen for the signals and alert local personnel to the emergency, and the beacon allows search and rescue to find the scene of the accident faster. Beacons operating at 406 MHz are encoded, allowing the vessel of origin to be determined and false alarms to be quickly verified. Satellite support for the 121.5 MHz–only versions was discontinued in early 2009. Video and Audio content is Copyright © High Flight This video and audio material may not be reproduced in any form (except as the videos Youtube embedded video option on any other website), without written permission.