Short S.23 Empire

1936

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Short S.23 Empire

In 1935 the British government took the bold decision to carry all mail within the Empire at the ordinary surface rate (in Britain then equal to 0.625 p). Combined with.increasing passenger traffic, this called for a sudden expansion of Imperial Airways and the equally bold decision was taken to buy 28 of a totally new flying-boat 'off the drawing board' from Short Brothers. Flying-boats were then favoured because they could be more heavily loaded than landplanes, the latter being constricted by the small and rough fields available. The prototype S.23 made its very successful maiden flight on 4 July 1936. It was named Canopus and all sister-ships had names beginning with C, the boats also being known as the C class.

Features included light-alloy stressed-skin construction; a cantilever high wing with electric Gouge flaps; four 685êW Bristol Pegasus Xc radial engines driving DH Hamilton two-position propellers; and a streamlined nose incorporating an enclosed flight deck for captain, first officer, navigator and flight clerk. A steward's pantry was amidships and in the normal configuration seats were arranged in front and rear cabins for 24 passengers. On long hauls sleeping accommodation was provided for 16, with a promenade lounge. On some routes experience showed that the mail capacity had to be raised from 1.5 to 2 tonnes, reducing the passenger seats to 17.

All 28 were delivered, plus three for Qantas (Australia). Two were long-range boats with increased weight and transatlantic range. Eleven S.30s (eight for Imperial and three for Tasman Empire Airways) had 663kW Perseus XIIc sleeve-valve engines and greater range - the first four also being equipped for flight refuelling to greater weight. The final two boats were S.33s with increased weight and Pegasus engines.

During World War II most of these great aircraft served on long routes all over the world. Four were impressed for RAF use with radar (two being destroyed in Norway in May 1940) and most were re-engined with the same 752kW Pegasus 22 engines as the Sunderlands (the derived military version). Their achievements were amazing: one made 442 crossings of the Tasman Sea, two evacuated 469 troops from Crete and one was flown out of a small river in the Belgian Congo in 1940. Others maintained schedules on the North Atlantic, between Britain and Africa, the dangerous Mediterranean route from Gibraltar to Malta and Cairo, and the Horseshoe route between Australia, India and South Africa. Most were retired in 1947

Short S.23 Empire

Specification 
 MODELS.23
 CREW5
 PASSENGERS17-24
 ENGINE4 x Bristol Pegasus XC, 686kW
 WEIGHTS
  Take-off weight18370 kg40499 lb
  Empty weight10659 kg23499 lb
 DIMENSIONS
  Wingspan34.75 m114 ft 0 in
  Length26.82 m88 ft 0 in
  Height9.7 m32 ft 10 in
  Wing area139.35 m21499.95 sq ft
 PERFORMANCE
  Max. speed322 km/h200 mph
  Cruise speed265 km/h165 mph
  Ceiling6095 m20000 ft
  Range1223 km760 miles

3-View 
Short S.23 EmpireA three-view drawing (602 x 779)

Comments1-20 21-40
JACK CAIRNS, e-mail, 18.04.2009 04:42

HI - I SERVED APPRENTISHIP IN SHORT BROS + HARLAND IN BELFAST IN 52-57 - ON SUNDERLANDS ETC. THERE IS A LOT OF INFORMATION ON THE INTERNET - TRY ENTERING SHORTS FLYING BOATS - THANX J.C.

reply

Geoff Gurr, e-mail, 30.10.2008 23:38

I flew as passenger in a C Class 'boat from Cairo to Nairobi, then later from Mombasa to Diego Suarez in Madagascar in 1944. Is there any way to trace the names of these 'boats, please?

reply

Leslie dawson, e-mail, 15.07.2021 Geoff Gurr

Hi Geoff
Following on from my earlier Wings Over Dorset, my Fabulous Flying Boats (Pen and Sword) details the history of the Empire or C-class flying boats and what it was like to pilot or be flown by these superb aircraft. It also has a comprehensive Appendix which lists every single flying boat operated throught the world.
My 20th Century Passenger Flying Boats is now available (Pen and Sword) as a pictorial follow up, and features over 100 large photographs while including the same detailed list of every commerical flying boat.
Regards
Leslie Dawson
Bournemouth, Dorset

reply

Paul Sheehan, e-mail, 29.10.2020 Geoff Gurr

Hi there Geoff. If you can give me the dates of your travel, I can give you all the details. Please feel free to email me.
Cheers
Paul Sheehan

reply

Yoel Sher, e-mail, 13.12.2020 Paul Sheehan

Hi, I flew 80 years ago (10-15.1.1941) from Lourenço-Marques to Tiberias on Canopus and Cleopatra, but cannot remember which was first and which second. and if we changed planes in Khartoum or Cairo.
We "landed" on the lake of Tiberias either near the Lido Beach in town or at Tsemach, on the southern shore of the lake. The crew was two charming gentlemen. Do you have any details?
I still have my air ticket...

(Message to Paul Sheehan)

reply

sandra.walters, e-mail, 31.10.2007 12:30

Can you please give details of which flying boats were used on the Southampton - Vaal Dam South Africa route. Also what speed did she travel, how many passengers and the exact route (with stops) many thanks

reply

Leslie dawson, e-mail, 15.07.2021 sandra.walters

Hallo Sandra
As a follow up to my earlier Wings Over Dorset, Fabulous Flying Boats (Pen and Sword) details what it was like to pilot or be flown by these superb aircraft. The services mentioned include the Vaal-Dam route.
My 20th Century Passenger Flying Boats is now available as a pictorial follow up, with over 100 large photographs. Both titles include an Index listing every single flying boat that was operated commercially.
A lot of research with enjoyable interviews with the pilots that flew them that had retired- fortunately for me- to the very attractive Poole harbour area .
Regards
Leslie Dawson
Bournemouth, Dorset

reply

Trevor More, e-mail, 05.08.2007 10:37

The last S23 Empire boat was broken up in 1954. So, sadly, none survive and you cannot fly in one.

reply

John Haggman, e-mail, 25.04.2007 13:32

Where can I fly one? Can you please advise where any S.23's presently operate?
Thanks,
John
Sydney, Australia

reply

1-20 21-40

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