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Miles M.100 Student

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The Miles M.100 Student was built as a lightweight trainer as a private venture by F.G. and George Miles with development starting in 1953. In designing the M.100 the two brothers and their small team set out to produce an aircraft to do the same job as the Jet Provost for ab initio and flying instruction, but in a generally smaller design, to minimise acquisition and operatings costs.
 
With its accent on economy, the two-seat side-by-side all-metal M.100 was designed round a single Marboré IIA turbojet of only 880lb thrust for take-off, or little more than half the output of the initial Jet Provost's 1640lb Viper ASV.5.
 
The Student flew on 15 May 1957, with the B Condition indentity G-35-4 on its fins, in hand of George Miles, its chief designer, at Shoreham. Maximum level speeds were just under 300 mph and 330 mph, respectively.
 
One of the main design features was the NACA-type flush intake above the wing centre-section for the Marboré centrifugal turbojet (for which Blackburn had a production licence). This intake's location and shape minimised the possibilities of foreign object ingestion on the ground and in the air, at the expense of some loss in installed thrust.
 
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To prevent overspill at high angles of attack, fences had been added each side after the first flight, to prevent overspill.
An uneventful flight development programme over the next few months, mostly by F.G. Miles Ltd test pilot ex-Sqn Ldr Duncan McIntosh, necessited non significant changes, and allowed the Student's inclusion in the Farnborough programme in September 1957. At Farnborough 1957 the M.100 had the wing tips tanks removed. Miles had hoped to secure an RAF order, which in the event went to the Jet Provost, and the Student did not go into production. The Student was subsequently proposed for several training orders, but without success.
 
By 1958 the civil identity was G-APLK.
 
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Early in 1964, the prototype Student was modified to the Mk. 2 version, incorporating a Marbore VI F turbojet giving 20 per cent greater thrust, interchangeable underwing pods for a variety of weapons, improved brakes and cockpit ventilation. In this guise, basic production price was £25,000. It was flight tested by George Miles on 22 April, 1964.
 
 
Miles Student
Engines: 1 x Blackburn Turbomeca Marbore 2 or 2 x Palas 600
Span: 29.2 ft (8.90 m)
Length: 30.9 ft (9.38 m)
Height: 6.3 ft (1.90 m)
Empty, equipped: 2300 lb (1043 kg)
Weight loaded: 3100 lb (1406 kg)
Max loaded: 3600 lb (1630 kg)
Max.wing loading: 26 lb/sq.ft (127 kg/m²)
Max speed at S/L at 3100 lb: 290 mph (467 km/h)
Max speed at 20000 ft at 3100 lb: 302 mph (486 km/h)
Cruising speed at S/L at 3100 lb: 254 mph (409 km/h)
Cruising speed at 20000 ft at 3100 lb: 268 mph (431 km/h)
Landing speed at 3100 lb: 69 mph (111 km/h)
Rate of climb at S/L at 3100 lb: 2050 ft./min (650 m/min)
Time to 10 000 ft at 3100 lb: 5.7 min
Time to 20 000 ft at 3100 lb: 14 min
Take-off distance (50 ft) at 3100 lb: 1740 ft (530 m)
Landing distance (50 ft) at 3100 lb: 1710 ft (520 m)
Range: 476 miles (767 km)
 
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