Editing Avro Vulcan (section)

===Proposed developments and cancelled projects===
;Avro Type 718:
The Avro 718 was a 1951 proposal for a delta-winged military transport based on the Type 698 to carry 80 troops or 110 passengers. It would have been powered by four Bristol Olympus [[Rolls-Royce Olympus#Variants|BOl.3]] engines.<ref name='avrotypelist'>[http://www.avroheritage.com/page10a.html "Avro Type List."] ''Avro Heritage.'' Retrieved: 4 August 2013.</ref>
;Avro Atlantic:
{{main|Avro Atlantic}}
The Avro Type 722 Atlantic was a 1952 proposal (announced in June 1953) for a 120-passenger delta-winged airliner based on the Type 698.<ref name='avrotypelist'/>
;Avro Type 732:
The Avro 732 was a 1956 proposal for a supersonic development of the Vulcan and would have been powered by 8 [[de Havilland Gyron Junior]] engines. Unlike the proposed Avro 721 low-level bomber of 1952 or the [[Avro 730]] supersonic [[stainless steel]] [[Canard (aeronautics)|canard]] bomber dating from 1954 (cancelled in 1957 before completion of the prototype), the Type 732 showed its Vulcan heritage.<ref name='avrotypelist'/>
;Vulcan Phase 6 (Vulcan B.3)
[[File:Avro Vulcan B.3 top-view silhouette.png|thumb|Silhouette of the original study for the Vulcan B.3 patrol missile carrier]]
In 1960, the Air Staff approached Avro with a request into a study for a patrol missile carrier armed with up to six Skybolt missiles capable of a mission length of 12 hours. Avro's submission in May 1960 was the Phase 6 Vulcan, which would have been the Vulcan B.3. The aircraft was fitted with an enlarged wing of {{convert|121|ft|m|abbr=on}} span with increased fuel capacity; additional fuel tanks in a dorsal spine; a new main undercarriage to carry an all-up-weight of {{convert|339000|lb|kg|abbr=on}}; and reheated Olympus 301s of {{convert|30000|lbf|kN|abbr=on}} thrust. An amended proposal of October 1960 inserted a {{convert|10|ft|9|in|m|abbr=on}} plug into the forward fuselage with capacity for six crew members including a relief pilot, all facing forwards on ejection seats, and [[Turbofan#Aft-fan turbofan|aft-fan]] versions of the Olympus 301.<ref name="Gibson">Gibson 2011, pp. 117–118.</ref>
;Fighter-support Vulcan
{{main|Airborne aircraft carrier}}
To counter improving Soviet defences after the cancellation of [[Skybolt]], Avro proposed a Vulcan with three [[Folland Gnat|Gnat]] fighters slung underneath.<ref>Force V: The history of Britain's airborne deterrent, by Andrew Brookes. Jane's Publishing Co Ltd; First Edition 1 Jan. 1982, {{ISBN|0710602383}}, p.131.</ref> The Gnats were to have been released in enemy airspace to provide fighter cover, and they were expected to land "in friendly territory" or return to the Vulcan to replenish their tanks by means of a specially installed flight-refuelling drogue.<ref>{{Cite web|url=https://www.thunder-and-lightnings.co.uk/vulcan/history.php|title=Thunder & Lightnings - Avro Vulcan - History|website=www.thunder-and-lightnings.co.uk}}</ref>