HMAS Sheean
| Commanding Officer | |
|---|---|
| Class |
Collins Class |
| Type | |
| Pennant |
SSG 77 |
| Motto |
Fight On |
| Home Port | |
| Builder |
Australian Submarine Corp, Adelaide |
| Laid Down |
17 February 1994 |
| Launched |
1 May 1999 |
| Commissioned |
23 February 2001 |
| Dimensions and weights | |
| Displacement |
|
| Length | 77.8 metres |
| Beam | 7.8 metres |
| Draught | 7 metres |
| Performance | |
| Speed |
|
| Range |
|
| Complement | |
| Crew |
|
| Propulsion | |
| Machinery |
|
| Armament | |
| Missiles | McDonnell Douglas Sub Harpoon Block 1B (UGM 84C); active radar homing |
| Torpedoes | 6-21 in (533 mm) fwd tubes. Gould Mk 48 Mod 4/6/7; dual purpose; wire-guided; active/passive homing |
| Mines | 44 in lieu of torpedoes. |
| Physical Countermeasures | Decoys: 2 SSE. |
| Electronic Countermeasures | ESM: Condor CS-5600; intercept and warning. |
| Radars | Navigation: Kelvin Hughes Type 1007; I-band. |
| Sonars |
|
| Weapon Control Systems | AN-BYG 1. Link 11. |

HMAS Sheean is the fifth Collins Class Submarine built by the ASC in Adelaide, Australia.
Sheean was named after Ordinary Seaman Teddy Sheean, who was lost when HMAS Armidale (I) was sunk on 1 December 1942 off the Timorese coast. Armidale (I) had survived two days of bombing before being struck by a Japanese aerial torpedo. During the action Ordinary Seaman Sheean was wounded and rather than abandoning ship with the rest of his shipmates, he strapped himself to the aft Oerlikon Gun and continued to fire at the attacking Japanese aircraft until Armidale (I) sank. Sheean was 'mentioned in dispatches' for his bravery.
Sheean is the only Australian naval vessel to be named after a sailor, and the Submarine continues to maintain strong ties with Teddy Sheean's hometown of Latrobe , Tasmania , Australia.
History of the Crest
The Blazon
Vert, in base embattled azure an oerlikon.
Motif Description
The blue field represents the Navy and the sea.
The green field represents the farming fields and Mt Roland of Sheean's home town of Latrobe.
The Oerlikon represents the weapon which Sheean manned to the last.
The division of the fields is known in heraldic terms as "embattled" and in this context signifys that Sheean's last stand was during battle.
Motto: "FIGHT ON"
The originally recommended ship's motto for HMAS Sheean was "Fight On" with and alternative of "Never Surrender". The alternative however was rejected on the basis that is was considered too alike "No Cede", the approved motto of HMAS Harman.


