Editing Napier Sabre (section)

==Variants==
Note:{{#tag:ref|List from Lumsden unless otherwise noted.|group=nb}}
;Sabre I (E.107)
:(1939) {{convert|2,000|hp|kW|abbr=on}}.
;Sabre II
:(1940) {{convert|2,300|hp|kW|abbr=on}}. Experimental 0.332:1 propeller reduction gear ratio.
;Sabre II (production variant)
:{{convert|2,200|hp|kW|abbr=on}}. Reduction gear ratio 0.274:1: mainly used in early [[Hawker Typhoon]]s.<ref>Sheffield March 1944, p. 310.</ref>
;Sabre IIA
:{{convert|2,235|hp|kW|abbr=on}}. Revised ignition system: maximum boost +9 lbs.<ref>Air Ministry 1943, pp. 24, 25.</ref>
;Sabre IIB
:{{convert|2,400|hp|kW|abbr=on}}. Four choke [[SU Carburettor|S.U. carburettor]]: Mainly used in [[Hawker Tempest|Hawker Tempest V]].<ref name="Flight 1945, p. 551.">Flight 1945, p. 551.</ref>
;Sabre IIC
:{{convert|2,065|hp|kW|abbr=on}}. Similar to Mk VII.
[[File:NapierSabreIII.JPG|thumb|right|Napier Sabre III]]
;Sabre III
:{{convert|2,250|hp|kW|abbr=on}}. Similar to Mk IIA, tailored for the [[Blackburn Firebrand]]: 25 manufactured and installed.<ref name="Flight 1945, p. 551."/>
;Sabre IV
:{{convert|2,240|hp|kW|abbr=on}}. As Mk VA with Hobson fuel injection: preliminary flight development engine for Sabre V series.<ref name="Flight 1945, p. 551."/> Used in Hawker Tempest I.<ref>Mason 1991, p. 331.</ref>
;Sabre V
:{{convert|2,600|hp|kW|abbr=on}}. Developed MK II, redesigned supercharger with increased boost, redesigned induction system.
;Sabre VA
:{{convert|2,600|hp|kW|abbr=on}}. Mk V with Hobson-R.A.E fuel injection, single-lever throttle and propeller control: used in Hawker Tempest VI.
;Sabre VI
:{{convert|2,310|hp|kW|abbr=on}}. Mk VA with [[Dowty Rotol|Rotol]] cooling fan: used in 2 Hawker Tempest Vs modified to use Napier designed annular radiators; also in experimental [[Vickers Warwick|Vickers Warwick V]].<ref>Flight 1946, p. 91.</ref>
;Sabre VII
:{{convert|3,055|hp|kW|abbr=on}}. Mk VA strengthened to withstand high powers produced using [[Water injection (engines)|Water/Methanol injection]]. Larger supercharger impeller.<ref>Flight 1945, p. 552.</ref>
;Sabre VIII
:{{convert|3,000|hp|kW|abbr=on}}. Intended for [[Hawker Sea Fury|Hawker Fury]]; tested in the [[Folland Fo.108]].
;Sabre E.118
:(1941) Three-speed, two-stage supercharger, [[contra-rotating propeller]]; test flown in Fo.108.
;Sabre E.122
:(1946) 3,500 horsepower. Intended for Napier 500mph tailless fighter