On rotorcraft many components have recommended or mandatory TBOs, including main rotor blades, tail rotor blades and gearboxes.
Helicopter rotor | tail | rotor | Brown-tail | tail rotor | Serpent's Tail | An American Tail: Fievel Goes West | An American Tail | V-tail | Tiger by the Tail | Iron Tail | Fee tail | Fairy Tail | crested dog's tail | 'V' or butterfly tail | The Dragon's Head and Tail, from Guido Bonatti | Tail Spin | Tail rotor | Tail of the Bank | tail gunner | ROTOR | Rotor | Rigid rotor | Peter-No-Tail in Americat | Perham Township, Otter Tail County, Minnesota | Otter Tail River | Otter Tail County, Minnesota | Leaf Mountain Township, Otter Tail County, Minnesota | I've Got a Tiger By the Tail | helicopter rotor |
The 1993 Llyn Padarn helicopter crash occurred on August 12, 1993, when an RAF Westland Wessex helicopter, serial number XR524, with 3 crew and 4 passengers (all of them Air Training Corps cadets) on board suffered a catastrophic tail rotor failure and plunged into Llyn Padarn, a lake in North Wales.
Other major improvements include a five-blade Spheriflex composite main rotor combined with the familiar shrouded Fenestron tail rotor to reduce vibration levels significantly.
The Matra-Cantinieau MC-101 was an early 1950s French experimental two seat helicopter of conventional tail rotor configuration but with its engine mounted close to the main rotor, above the seating.
Realizing this, the Kellett Autogiro Corporation made a proposal to the USAAF on 11 November 1942 for the development of a twin-rotor helicopter that would obviate the need for a tail rotor and its attendant loss of power.
The current helicopter used is a McDonnell Douglas MD 902 Explorer, registration G-EHMS, which is notable as it does not use a tail-rotor.
Developed by McDonnell Douglas Helicopter Systems (through their acquisition of Hughes Helicopters), the name is an acronym derived from the phrase no tail rotor.