Top
Share
Home → Boats → Submarines → B Class → B9

B 9 (I 29)

Built By: Vickers (Barrow)
Build Group: B
Fate: Converted to Surface Patrol Craft and renamed 'S9' for service on the Otranto Barrage.

Sold for scrap in Italy 1919
B9 beached during repairs
B9 beached during repairs

Upload An Image Of This Boat

Commanders
1914: Lieutenant   G Warburton
1915: Lieutenant   Jermyn Rushbrooke

1914: Attached to Mediterranean Fleet

Transferred to Venice on Marco Polo.

Renamed S9 after being converted to a patrol boat.

Events

 24-01-1906   Launched
 28-04-1906   Completed
 29-03-1916   Attacked by Austrian aircraft.
B Specification
Length overall  142 ft
Beam  12 ft
Draught  11 ft
Displacement   Surface 287 tons
  Submerged 316 tons
Diving Depth  100 ft
Speed  Surface 7 knots (design)
  Surface 6.5 knots (service)
  Submerged 13 to 13.5 knots (design)
  Submerged 12 knots (service)
No. of shafts  1
Propeller  3 blades, 5 ft diameter
Armament  2 x 18 inch bow torpedo tubes (4 torpedoes carried)
Endurance  Surface: 1300 miles at 9 knots (design)
  Surface: 740 miles at full power (service)
  Submerged: 22.5 miles
Complement  2 x Officers, 13 x Ratings
Add A Comment (click to open)

This form is for you to comment on, or add additional information to this page. Any questions will be deleted. If you wish to ask a question contact the Branch or the Webmaster using the Contact Us page or ask your question on our Facebook Page

Name E-Mail
Your email will not be shown, but is required
Anti Spam: Type the following code exactly as shown into the box below.

Kc6Q    
Note: All submissions are subject to approval prior to appearing on the page. As a SPAM prevention measure, any comments containing links to other sites will be automatically discarded.
Featured Badge

X 9 (Pluto)


Class: 1942 - 1946: X Class
Built By: Markham and Co (Derbyshire)
Build Group: X
Fate:
16 September 1943 - Lost on passage to Norway to attack Scharnhorst
Read More
Featured Book
The Sea Devils
July 1945. Eighteen young British, Australian and New Zealand special forces from a top-secret underwater warfare unit prepare to undertake three audacious missions against the Japanese.

Using XE-craft midget submarines, the raiders will creep deep behind Japanese lines to sink two huge warships off Singapore and sever two vitally important undersea communications cables. Success will hasten ultimate victory over Japan; but if any of the men are captured they can expect a gruesome execution.

Can the Sea Devils overcome Japanese defences, mechanical failures, oxygen poisoning and submarine disasters to fulfil their missions? Mark Felton tells the true story of a band of young men living on raw courage, nerves and adrenalin as they attempt to pull off what could be the last great raid of World War Two.
Buy from Amazon
Latest Updated Pages
Branch Newsletter
Updated: February 8, 2026
Branch Noticeboard
Updated: February 8, 2026
Branch Events
Updated: February 5, 2026
Branch Rollcall
Updated: February 3, 2026
Branch Rules and Minutes
Updated: February 3, 2026
About Me
Updated: January 31, 2026
Commodore David Charles Langbridge MSC CEng FIME
Updated: January 31, 2026
Lieutenant Commander (WESM) Clive Waghorn
Updated: January 31, 2026
Welcome
Updated: January 31, 2026
Clyde Shipbuilding and Engineering
Updated: January 28, 2026
In Depth Newsletter
Updated: January 19, 2026

11 pages added or updated in the last 1 month

Errors and Corrections

Please help to maintain this site by reporting any Errors, Broken Links, Information or Site Issues on this page using this button

Report An Error

Buy Me A Coffee

If you find this site useful, please consider supporting my work with a small Donation. Or you can make a big one if you like :)

Click to Donate

Please Note: Donations made using this option go directly to the site owner and not to the Submariners Association.

Thankyou for your support.