Halton Mayfly

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title: "Halton Mayfly" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["1920s-british-sport-aircraft", "aircraft-first-flown-in-1927", "biplanes", "single-engined-tractor-aircraft"] topic_path: "sports" source: "https://en.wikipedia.org/wiki/Halton_Mayfly" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::data[format=table title="Infobox aircraft"]

Field	Value
name	Mayfly
image	Halton HAC-1 Le Document aéronautique April,1927.jpg
aircraft_type	Sports biplane
national_origin	United Kingdom
manufacturer	Halton Aero Club
designer	C.H. Latimer-Needham
number_built	1
first_flight	31 January 1927
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| name = Mayfly | logo = | logo_size = | image = Halton HAC-1 Le Document aéronautique April,1927.jpg | alt = | caption = | long_caption = | other_names = | aircraft_type = Sports biplane | aim = | outcome = | related = | national_origin = United Kingdom | manufacturer = Halton Aero Club | design_group = | designer = C.H. Latimer-Needham | builder = | issuer = | status = | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = 1 | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = | introduction = | retired = | first_flight = 31 January 1927 | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = The Halton Mayfly was a British two-seat biplane designed by C.H. Latimer-Needham and built by the Halton Aero Club between 1926 and 1927. Registered G-EBOO and named the HAC.1 Mayfly it first flew on 31 January 1927. It was converted to a single-seater and was flown in a number of air races including the King's Cup Race. It was entered in the 1926 Lympne light aircraft trials as No. 8 but failed to arrive in time for the elimination trials.

By 1928 the aircraft had been converted from a biplane to a parasol monoplane and was renamed the Halton HAC.2 Minus. It was used again for air racing, being entered in the 1928 and 1928 King's Cup Races. The aircraft was dismantled at Halton in 1930.

Variants

;HAC.1 Mayfly :Two-seat then single-seat biplane powered by a Bristol Cherub III engine. ;HAC.2 Minus :The Mayfly converted into a parasol monoplane.

Specifications (Mayfly)

::figure[src="https://upload.wikimedia.org/wikipedia/commons/e/ee/Halton_HAC-1_Mayfly_3-view_Le_Document_aéronautique_October,1926.png" caption="Halton HAC-1 Mayfly 3-view drawing from Le Document aéronautique October,1926"] ::

|ref= |prime units?=imp General characteristics

|genhide=

|crew=one |capacity= |length m= |length ft=22 |length in=0 |length note= |span m= |span ft= |span in= |span note= |upper span m= |upper span ft=28 |upper span in=6 |upper span note= |mid span m= |mid span ft= |mid span in= |mid span note= |lower span m= |lower span ft=22 |lower span in=0 |lower span note= |swept m= |swept ft= |swept in= |swept note= |dia m= |dia ft= |dia in= |dia note= |width m= |width ft= |width in= |width note= |height m= |height ft= |height in= |height note= |wing area sqm= |wing area sqft=195 |wing area note= |swept area sqm= |swept area sqft= |swept area note= |volume m3= |volume ft3= |volume note= |aspect ratio= |airfoil= |empty weight kg= |empty weight lb=480 |empty weight note= |gross weight kg= |gross weight lb=920 |gross weight note= |max takeoff weight kg= |max takeoff weight lb= |max takeoff weight note= |lift kg= |lift lb= |lift note= |more general= Powerplant

|eng1 number=1 |eng1 name=Bristol Cherub III |eng1 type=Two-cylinder, air-cooled piston engine |eng1 kw= |eng1 hp=32 |eng1 kn= |eng1 lbf= |eng1 note= |power original= |thrust original= |eng1 kn-ab= |eng1 lbf-ab=

|eng2 number= |eng2 name= |eng2 type= |eng2 kw= |eng2 hp= |eng2 kn= |eng2 lbf= |eng2 note= |eng2 kn-ab= |eng2 lbf-ab=

|eng3 number= |eng3 name= |eng3 type= |eng3 kw= |eng3 hp= |eng3 kn= |eng3 lbf= |eng3 note= |eng3 kn-ab= |eng3 lbf-ab= |more power=

|prop blade number= |prop name= |prop dia m= |prop dia ft= |prop dia in= |prop note=

|rot number= |rot dia m= |rot dia ft= |rot dia in= |rot area sqm= |rot area sqft= |rot area note= Performance

|perfhide=

|max speed kmh= |max speed mph=83.5 |max speed kts= |max speed note= |max speed mach= |cruise speed kmh= |cruise speed mph=75 |cruise speed kts= |cruise speed note= |stall speed kmh= |stall speed mph= |stall speed kts= |stall speed note= |never exceed speed kmh= |never exceed speed mph= |never exceed speed kts= |never exceed speed note= |minimum control speed kmh= |minimum control speed mph= |minimum control speed kts= |minimum control speed note= |range km= |range miles= |range nmi= |range note= |combat range km= |combat range miles= |combat range nmi= |combat range note= |ferry range km= |ferry range miles= |ferry range nmi= |ferry range note= |endurance= |ceiling m= |ceiling ft= |ceiling note= |g limits= |roll rate= |glide ratio= |climb rate ms= |climb rate ftmin= |climb rate note= |sink rate ms= |sink rate ftmin= |sink rate note= |lift to drag= |wing loading kg/m2= |wing loading lb/sqft= |wing loading note= |disk loading kg/m2= |disk loading lb/sqft= |disk loading note=

|power/mass met= |power/mass imp= |power/mass note= |thrust/weight= |thrust/weight note=

|more performance= Armament

|armament= |guns= |bombs= |rockets= |missiles= |hardpoints= |hardpoint capacity= |hardpoint rockets= |hardpoint missiles= |hardpoint bombs= |hardpoint other=

|avionics= |see also= |related= |similar aircraft= |sequence= |lists=

References

Notes

Bibliography

References

1. [http://www.flightglobal.com/pdfarchive/view/1927/1927%20-%200094.html ''Flight'' 17 February 1927 p.83]
2. Jackson 1973, pp. 319-320
3. [http://www.flightglobal.com/pdfarchive/view/1926/1926%20-%200668.html ''Flight'' 16 September 1926 p.592-8]

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