Saunders-Roe SR.45 (Princess)

Flying Boat (1952)

Aviation / Aerospace

The Saunders-Roe Princess flying boat became the largest all-metal flying boat aircraft to have been built - just one example was completed.

Authored By: Staff Writer | Last Edited: 05/04/2019 | Content ©www.MilitaryFactory.com

Specifications

Service Year

1952

Origin

United Kingdom

Status

CANCELLED
Development Ended.

Crew

6

Production

1
UNITS

Saunders-Roe (SARO) - UK

(View other Aviaton-Related Manufacturers)

United Kingdom

(OPERATORS list includes past, present, and future operators when applicable)

✓ Transport
General transport functionality to move supplies/cargo or personnel (including wounded and VIP) over range.

✓ Commercial Aviation
Used in roles serving the commercial aviation market, ferrying both passengers and goods over range.

✓ X-Plane (Developmental, Prototype, Technology Demonstrator)
Aircraft developed for the role of prototyping, technology demonstration, or research / data collection.

Length

147.6 ft
(45.00 m)

Width/Span

219.5 ft
(66.90 m)

Height

55.7 ft
(16.99 m)

Empty Wgt

190,038 lb
(86,200 kg)

MTOW

345,023 lb
(156,500 kg)

Wgt Diff

+154,985 lb
(+70,300 kg)

(Showcased structural values pertain to the Saunders-Roe SR.45 production variant)

Installed: 4 x Bristol Coupled-Proteus 610 turboprop engines developing 5,000 horsepower each with 2 x Bristol Proteus 620 turboprop engines developing an additional 2,500 horsepower; All engines driving four-bladed propeller units.

Max Speed

379 mph
(610 kph | 329 kts)

Ceiling

39,370 ft
(12,000 m | 7 mi)

Range

5,720 mi
(9,205 km | 17,048 nm)

Rate-of-Climb

1,900 ft/min
(579 m/min)

♦ MACH Regime (Sonic)

Sub

Trans

Super

Hyper

HiHyper

ReEntry

♦

(Showcased performance specifications pertain to the Saunders-Roe SR.45 production variant. Compare this aircraft entry against any other in our database. View aircraft by powerplant type)

None.

SR.45 "Princess" - Base Series Designation.

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