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Aviation / Aerospace


Saunders-Roe SR.45 (Princess)


Flying Boat [ 1952 ]



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 national flag graphic
United Kingdom

Status
CANCELLED
Development Ended.
Crew
6

Production
1
UNITS


National flag of the United Kingdom 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
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030


(Showcased performance specifications pertain to the Saunders-Roe SR.45 production variant. Performance specifications showcased above are subject to environmental factors as well as aircraft configuration. Estimates are made when Real Data not available. Compare this aircraft entry against any other in our database or View aircraft by powerplant type)
None.


Supported Types




(Not all ordnance types may be represented in the showcase above)
SR.45 "Princess" - Base Series Designation.


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