Flamethrower, Portable, No 2
The Flamethrower, Portable, No. 2 (nicknamed Lifebuoy from the shape of its fuel tank), also known as the Ack Pack, was a British design of flamethrower for infantry use in the Second World War.
Flamethrower, Portable, No 2

War Office official photographer, Wooldridge (Sergeant) · This photograph H 37975 comes from the collections of the Imperial War Museums (collection no. 6509-07) · Public domain
- Name
- Flamethrower, Portable, No. 2
- Field
- flamethrower.
- Region
- United Kingdom.
Reference Check
Propose documentary evidence for Flamethrower, Portable, No 2. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.
Sign in to contribute
World of VALÉORINE
Documentary connections
Only confirmed graph relationships appear here. Images are shown only when their identity and reuse rights both pass the documentary gate.
Documentary evidence
Documentary basis
Authority files
wikidata · Q5457221 · wikipedia · Flamethrower, Portable, No 2
In this article
Key facts
Key facts
• Name — Flamethrower, Portable, No. 2 • Type — Flamethrower • Origin — United Kingdom • Is Ranged — yes • Is Uk — yes • Used By — United Kingdom Canada • Wars — World War II • Developed From — Wechselapparat M.1917 • Production Date — 1943–1944 • Number — 7,000 • Variants — No. 1 (Training weapon) No.2 • Crew — 1 Operator • Action — Cordite igniter • Rate — 10 igniters only • Feed — of fuel
Gallery
Gallery
• Illustration — The Lifebuoy man-portable flamethrower being demonstrated to men of 1st Battalion, King's Own Scottish Borderers, Denmead, Hampshire, 29 April 1944. • Illustration — A Flamethrower Portable, No 2 in the Israel Defense Forces History Museum, Tel Aviv, Israel (September 2015) • Illustration — A Life Buoy flamethrower in action. August 1944.
Description
It was a near copy of the German Wechselapparat ("Wex") from 1917. The Mark 1 was used as a training weapon, while the improved Mark 2 was used in action. Over 7,000 units were produced from 1943 to 1944. They were ready for service during Operation Overlord (the Allied invasion of Normandy). The Ack Pack was a harness carrying a doughnut-shaped fuel container with a capacity of 4 impgal of fuel on the operator's back. In the middle of the "doughnut" was a spherical container holding nitrogen gas as a propellant, which was pressurized to 2,000 psi. This was sufficient to propel the burning fuel 120 ft. A hose from the fuel tank passed to the nozzle assembly which had two pistol grips to hold and aim the spray. The back grip had the trigger. In some versions the nozzle was fitted with a 10-chambered cylinder which contained the ignition cartridges. These could be fired once, each giving the operator 10 bursts of flame. In practice this gave 10 one-second bursts. It was also possible to spray fuel without igniting it. This allowed the operator to ensure the target had been adequately splashed with fuel before an ignited burst was fired. At 64 lb the flamethrower was considered heavy.
Primary material
Documents and archives
authority record
- Wikidata, structured authority record Q5457221: Flamethrower, Portable, No 2
General reference · Wikidata
reference work
- “Flamethrower, Portable, No 2”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
Text attribution
Licensing
Text attribution
Part of the biographical narrative on this page reuses licensed material. Its origin, revision and licence are recorded here.
The biographical narrative on this page is based on the Wikipedia article Flamethrower, Portable, No 2, revision 1369673838 (EN edition), by its contributors. VALÉORINE has edited that text and built its own documentary record around it. The reused material is available under CC BY-SA 4.0, and this page's reuse of it is offered under the same licence. Everything else on this page — the chronology, the holdings, the evidence, the plates and the connections — is VALÉORINE's own record. Sources and licences.
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
authority record
Secondary witnessreference work
Secondary witness
Connections
Knowledge graph
Connections
Each connection was recorded deliberately, with the basis for it kept on the internal record.
Broader subject
1- flamethrowerTerminology
Established from a fact already recorded on a verified source.
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
Elsewhere in Militaria
6,095 published records in this field, each with its sources named.
- Flame fougasseTerminology
- flame tankTerminology
- flame-bladed swordTerminology
- flamethrowerTerminology
- flaming swordTerminology
- Flammenwerfer 35Terminology
- Flammenwerfer 41Terminology
- Flammenwerfer M.16.Terminology
Best supported in this field
For owners
Own an object connected with Flamethrower, Portable, No 2?
A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.