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Bristol Brabazon

Bristol · Piston airliner · Prototype only — scrapped 1953

The greatest airliner never needed.

Length53.95 m
Wingspan70.1 m
MTOW132 t
Built1
First flight1949
Height15.24 m
Our numbers

Derived metrics

Computed by aircraft.fyi from the core specification — see how we calculate these.

Span-to-length ratio#7 of 68
1.30 wingspan ÷ fuselage length
Weight per metre#36 of 68
2.44 t/m MTOW ÷ fuselage length
Sense of scale

How big is it, really?

The Bristol Brabazon's wingspan, against things you already know the size of.

Bristol Brabazon70.1 m
Football pitch (width)68 m
Blue whale25 m
New Routemaster bus11.2 m
You (probably)1.75 m
Specification

The numbers

Length53.95 m
Wingspan70.10 m
Height15.24 m
MTOW131,542 kg
Passengers (planned)≈100 in luxury
Engines8 × Bristol Centaurus, paired to contra-props
First flight4 September 1949
Built1 (scrapped 1953)

Compare it

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Last verified: 2026-07-14 · Spot an error? business@luck.fyi

The story

What makes it different

The Brabazon was designed in wartime Britain for a post-war world that never arrived: a luxury liner flying London to New York with just 100 passengers in staterooms, a cinema, a cocktail bar and a promenade — each passenger allotted more space than a small flat. Its 70-metre wingspan exceeded a 747's; eight engines buried in the wing drove four pairs of contra-rotating propellers.

Bristol built a vast new assembly hall and demolished a village to extend the runway. The prototype flew beautifully in 1949 — and no airline wanted it. The economics of carrying 100 people in an aircraft that size were absurd next to smaller, faster types, and the coming jets made it prehistoric overnight.

It was scrapped in 1953 with under 400 hours flown. The consolation prize was real: the giant hall and runway at Filton later built Concorde.

Common questions

Bristol Brabazon — the short answers

How fast is the Bristol Brabazon?
The Bristol Brabazon cruises at about 483 km/h — roughly 261 knots, or 300 mph.
Is the Bristol Brabazon still in production?
Status: Prototype only — scrapped 1953. The Bristol Brabazon first flew in 1949, and about 1 have been built.
How big is the Bristol Brabazon?
The Bristol Brabazon is 53.95 m long with a wingspan of 70.1 m and a height of 15.24 m. Its maximum takeoff weight is 131,542 kg.
Variants

The Bristol Brabazon line

Brabazon Mk.I
The sole prototype.
Mk.II
Turboprop version — never completed.
Operators

Who flies the Bristol Brabazon

No current operators — this aircraft's flying days are over. The operators of record are below.

GBBristol Aeroplane CompanyManufacturer trials only — no airline ever ordered it.