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Miles M.23


High-Speed Single-Seat Fighter Proposal


United Kingdom | 1941



"The Miles M.23 proposal was designed as a single-seat, single-engine fighter capable of very-high-performance for the period - it did not materialize."

Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Miles M.23 High-Speed Single-Seat Fighter Proposal.
1 x Rolls-Royce Merlin inline piston engine developing 1,075 horsepower OR 1 x Rolls-Royce Griffon engine developing 1,600 horsepower driving a three-bladed propeller unit at the nose.
Propulsion
469 mph
755 kph | 408 kts
Max Speed
30,003 ft
9,145 m | 6 miles
Service Ceiling
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Miles M.23 High-Speed Single-Seat Fighter Proposal.
1
(MANNED)
Crew
28.7 ft
8.75 m
O/A Length
31.0 ft
(9.45 m)
O/A Width
7,408 lb
(3,360 kg)
MTOW
Armament
Available supported armament and special-mission equipment featured in the design of the Miles M.23 High-Speed Single-Seat Fighter Proposal .
PROPOSED (Fixed, Forward-Firing):
8 x 0.303 caliber (7.7mm) machine guns OR 2 x 20mm Automatic cannons in wings.
Variants
Notable series variants as part of the Miles M.23 family line.
M.23 - Base Project Designation.


Authored By: Staff Writer | Last Edited: 01/28/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

By 1941 Britain was fully embroiled in World War 2 (1939-1945) with its fighter force fully committed to the defense of the homeland. Despite the Royal Air Force (RAF) fielding very capable types in the Hawker Hurricane and the Supermarine Spitfire, there was always room for improvement to either design or acceptance of more advanced design forms should such a product arise.

Miles Aircraft engineers drew up plans for a new single-seat, single-engine high-speed fighter centered around the concept of having an extremely low frontal area of reduced drag, coupled with extensive streamlining, to produce formidable speedster doubling as an effective gun platform - essentially a fighter design capable of outpacing anything the Germans could field.

The Miles M.23 was the result of this work, the bullet-shaped fighter driven by either a Rolls-Royce Merlin or Griffon engine at its nose (in its early form, the M.23 would carry the Merlin and transition to the Griffon pending availability of the newer powerplant). The cockpit would be situated at midships, though aft of center, and low-mounted, rounded mainplanes were be seated under the fuselage. The mainplanes were of particular note for their thickness fell-off from 20% near the fuselage to just 6% at the tips - promoting a higher degree of wing loading compared to contemporaries of the day. The tail unit would be largely conventional in its formation, utilizing a single rounded vertical plane coupled with small-area horizontal planes. The completely retractable, wheeled, wide-track "reverse tricycle" undercarriage would be used for ground-running.

The cockpit was to be buried within the af-section of the fuselage, behind the mainplanes, with the pilot seated under a two-piece canopy of low profile. To the pilot's rear was a raised dorsal spine which would have added internal volume for fuel and pertinent systems but restricted vision to the critical "six".

In terms of armament, the fighter was envisioned with either a battery of 8 x 0.303 caliber (7.7mm) machine guns (four guns to a wing member) and 500 rounds of 7.7mm ammunition or 2 x 20mm Hispano-Suiza automatic cannons (one gun to a wing member).

Internally, the aircraft was to be constructed out of a mix of metal and wood with wing spars formed from the former and plywood used for the ribbing. The fuselage would, itself, be formed through a monocoque arrangement adding more plywood to the mix.

As penciled out, the M.23 was to have a running length of 28.7 feet and wingspan of 31 feet. Depending on engine fit, the product would have a weight between 6,200lb (Merlin engine) and 7,500lb (Griffon engine) showcasing (rather optimistic) estimated speeds of up to 470 miles-per-hour. Its service ceiling would reach up to 40,000 feet.

Despite its promising nature, the demands of war made the M.23 a casualty and the design was evolved beyond its drawing stage. The M.23A, while sharing nearly the same designation, was an altogether different fighter proposal by Miles Aircraft in 1942.

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Operators
Global customers who have evaluated and/or operated the Miles M.23. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 0 Units

Contractor(s): Miles Aircraft - UK
National flag of the United Kingdom

[ United Kingdom (cancelled) ]
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