- Construction
- War Service
- References
{{other ships|HMS Alyssum}}Alysse}}>{{Infobox ship image| Ship image=Aconit42 net.jpg | Ship caption=Flower-class corvette in 1942 paint
}}{{Infobox ship career | Hide header= | Ship country=France | Free French|naval}} {{shipboxflag|France|naval}} | Ship name= | Ship namesake= | Ship owner= | Ship operator= | Ship registry= | Ship route= | Ship ordered=12 December 1939 | Ship awarded= | Ship builder= | Ship original cost= | Ship yard number= | Ship way number= | Ship laid down=24 June 1940 | Ship launched=3 March 1941 | Ship sponsor= | Ship christened= | Ship completed= | Ship acquired= | Ship commissioned=17 June 1941 | Ship recommissioned= | Ship decommissioned= | Ship maiden voyage= | Ship in service= | Ship out of service= | Ship renamed= | Ship reclassified= | Ship refit= | Ship struck= | Ship reinstated= | Ship homeport= | Ship identification=Pennant number: K100 | Ship motto= | Ship nickname= | Ship honours= | Ship honors= | Ship captured= | Ship fate=torpedoed and sunk on 9 February 1942 in the North Atlantic, in position 46º00'N, 44º00'W by the German submarine U-654 while escorting convoy ON-60[1] | Ship status= | Ship notes= | Ship badge=
}}{{Infobox ship characteristics | Hide header= | Header caption= | Flower|corvette}} | Ship type= | Ship tonnage=900 | Ship displacement=950 tonnes | Ship tons burthen= | 62.7|m}} | 10.9|m}} | Ship height= | 2.7|m}} | Ship depth= | Ship hold depth= | Ship decks= | Ship deck clearance= | Ship ice class= | Ship power= | Ship propulsion=*Engine: 4-cylinder triple-expansion steam engine- Fuel: Gazole
- Pressure: 225 PSI
- Power:2,750 hp (2 MW)
| 16|kn}} | 12|kn}}- 2,630 nautical miles at {{convert|16|kn}}
- Fuel capacity: 230 tonnes
| Ship endurance= | Ship boats= | Ship capacity= | Ship troops= | Ship complement=70 | Ship crew= | Ship time to activate= | Ship sensors=Type 271 surface radar | Ship EW= | 4|in|mm|adj=on|sigfig=4}} Mark IX gun- 1 Mark VIII 40 mm gun
- 2 Mark IIA 20 mm guns
- 2 Hotchkiss machine guns
- 1 Mark III "hedgehog" mortar (24 shells)
- 4 Mark I depth charge launchers
- 2 ramps for Mark I depth charges
- 60 depth charges[2]
| Ship armour= | Ship armor= | Ship aircraft= | Ship aircraft facilities= | Ship notes=
}} | Alysse (formerly HMS Alyssum) was one of the nine {{sclass2-|Flower|corvette}}s lent by the Royal Navy to the Free French Naval Forces. ConstructionAlysse was built by George Brown & Co. War ServiceOriginally built as HMS Alyssum by the British Royal Navy, she was loaned to the Free French Navy upon completion on 17 June 1941. In all, Alysse escorted 9 convoys: | Convoys escorted by Alysse | | Year | Month | Name of convoy |
|---|
| 1941 | July | convoy England-United States | | 1941 | August | SC-40 | | 1941 | September | SC-44 | | 1941 | September | ON-19 | | 1941 | October | SC-50 | | 1941 | November | | 1941 | December | | 1942 | January | SC-62 | | 1942 | January | ON-60 | |
Shortly after midnight on 9 February 1942 while escorting convoy ON-60, Alysse was torpedoed by the German submarine U-654.[3]. The torpedo struck Alysse on the port side in the forward part of the ship causing her to settle by the bow. The surviving crew were rescued by {{HMCS|Hepatica}} and HMCS Moose Jaw; 36 crew members were lost. Hepatica then attempted to tow Alysse but after 30 minutes the tow parted. A further attempt was made to tow her to port later that day but after 18 hours Alysse foundered and sank at 6°34N/44°10W. [4] References1. ^{{cite web|url=https://www.uboat.net/allies/warships/ship/4707.html|title=FFL Alysse (K 100) of the Free French Navy - Free French Corvette of the Flower class - Allied Warships of WWII - uboat.net|website=www.uboat.net|accessdate=22 March 2018}}
2. ^[https://wrecksite.eu/wreck.aspx?31819 Alysse (J-1159) (+1942)] Wreck site
3. ^{{cite web|url=https://www.uboat.net/allies/merchants/ship/1322.html|title=FFL Alysse (K 100) (French Corvette) - Ships hit by German U-boats during WWII - uboat.net|website=www.uboat.net|accessdate=22 March 2018}}
4. ^{{cite web|url=https://www.uboat.net/allies/warships/ship/5569.html|title=HMS Alyssum (K 100) of the Royal Navy - British Corvette of the Flower class - Allied Warships of WWII - uboat.net|website=www.uboat.net|accessdate=22 March 2018}}
- {{cite book|last=Friedman|first=Norman|title=British Destroyers and Frigates: The Second World War and After|year=2008|publisher=Seaforth Publishing|location=Barnsley, UK|isbn=978-1-84832-015-4|ref=harv}}
{{France-mil-ship-stub}}{{Flower class corvette}}{{DEFAULTSORT:Alysse}} 2 : 1941 ships|Flower-class corvettes of the Free French Naval Forces |