‘Spirit of Innovation’ Stakes Claim To Be The World’s Fastest All-Electric Vehicle
The title of this post is the same as that of this press release on the Rolls-Royce web site.
This is the first paragraph.
We believe our all-electric ‘Spirit of Innovation’ aircraft is the world’s fastest all-electric aircraft, setting three new world records. We have submitted data to the Fédération Aéronautique Internationale (FAI) – the World Air Sports Federation who control and certify world aeronautical and astronautical records – that at 15:45 (GMT) on 16 November 2021, the aircraft reached a top speed of 555.9 km/h (345.4 mph) over 3 kilometres, smashing the existing record by 213.04 km/h (132mph). In further runs at the UK Ministry of Defence’s Boscombe Down experimental aircraft testing site, the aircraft achieved 532.1km/h (330 mph) over 15 kilometres – 292.8km/h (182mph) faster than the previous record – and broke the fastest time to climb to 3000 metres by 60 seconds with a time of 202 seconds, according to our data. We hope that the FAI will certify and officially confirm the achievements of the team in the near future.
Rolls-Royce also claim that the maximum speed achieved of 387.4 mph make it the world’s fastest all-electric vehicle.
To put that speed into perspective, it is faster than a Mark V Spitfire, which was powered by a legendary Rolls-Royce Merlin engine. These aircraft were powered by a Merlin 45 engine that generated 1074kW.
By comparison the Spirit of Innovation has a maximum power of just 400 kW.
Why Do It?
This paragraph from the press release gives an explanation.
As well as a stunning technical achievement, the project and world record runs provided important data for our future electric power and propulsion systems for all-electric urban air mobility and hybrid-electric commuter aircraft. The characteristics that ‘air-taxis’ require from batteries, for instance, are very similar to what was developed for the ‘Spirit of Innovation’.
I’ll go with that, as Rolls-Royce seem to be associated with several electric aviation projects.
But I can’t help feeling that there are parallels with the 1930s, when Supermarine and Rolls-Royce teamed up to produce the Supermarine S 6B, that won the Schneider Trophy outright in 1931. It is generally accepted that the knowledge gained at the time helped to design the Spitfire and the Merlin engine.