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Bristol 83
Primary Trainer

A modestly successful training aircraft derived from the Bristol Taxiplane.
Bristol 83A Primary Trainer G-EBGE Martlesham Jan 26 A standard Bristol 83A Primary Trainer G-EBGE at Martlesham for trials in January 1926.
 
The Bristol 83A Primary Trainer (sometimes known as the Bristol PTM - Primary Trainer Machine) is a direct descendant of the unsuccessful Bristol 73 Taxiplane (which is described separately).
 
The Primary Trainer was a Taxiplane configured as a two-seat dual control primary trainer, fitted with a single engine and slightly narrower fuselage. It was hoped that this machine would be suitable for use by the Reserve Flying Schools.
 
The first Primary Trainer (G-EBFZ) was the first of six aircraft to be used by the Reserve Flying School at Filton. It was first flown around late May 1923 and by the first week of July four aircraft were in use by the Filton Reserve Training School.
 
Bristol 83B Primary Trainer Bulgaria B-BEPK Apr 26 Bulgarian Bristol Primary Trainer B-BEPK at Filton in April 1926.
 
Six additional aircraft were put in hand but it was sometime before these attracted orders.
 
The first export sale was to Bulgaria who purchased a single machine (B-BEPK) which was delivered in April 1926. This, and later aircraft, were fitted with larger tail surfaces as the Type 83B with this change being effected on the earlier aircraft when returning for overhaul or repair.
 
Ultimately, the performance and reliability of these aircraft attracted further export orders of twelve aircraft for Chile and five for Hungary.
 
Bristol 83C Primary Trainer G-EBGA Bristol Primary Trainer G-EBGA was cleaned-up for air racing as the Type 83C.
 
In 1928, one of the Filton aircraft (G-EBGA) was cleaned up for racing purposes and designated the Type 83C. Modifications included a more streamlined cowling and spinner, fuselage fairings and increased chord interplane struts.
 
It was also fitted with a comma-shaped all-moving rudder and was later modified as a three-seater - it continued to fly until being scrapped in December 1933.
 
Bristol 83E Primary Trainer Titan 28 Kings Cup G-EBYT The one-off Titan-powered Type 83E G-EBYT as flown in the 1928 King's Cup Air Race.
 
The final development was the one-off strengthened Type 83E (G-EBYT) which was used as a test-bed for the 250 hp Bristol Titan engine. It was flown with a direct-drive Titan in the 1928 King’s Cup Air Race.
 
Later, it was fitted with a geared version of the Titan engine, which required an extended nose, and drove a four-blade propeller. Eventually it was scrapped following the completion of the Titan development programme in December 1930.
 
Bristol 83E Primary Trainer geared Titan G-EBYT 1930 The Bristol 83E Primary Trainer fitted with geared Titan engine and four blade propeller in 1930.

 

 

Specification Type 83A, B

Powerplant One 120 hp - 140 hp Bristol Lucifer engine                                        
Span 31 ft 1 in
Maximum Weight 1,900 lb
Capacity Pilot and student
Maximum Speed 96 mph

Variants and number built

Type 83A Six initial production aircraft
Type 83B Main production model with increased tail areas. 18 aircraft for export. Earlier aircraft brought up to this standard
Type 83C Streamlined competition conversion of G-EBGA
Type 83D Proposed seaplane variant not proceeded with
Type 83E One-off aircraft G-EBYT strengthened airframe for Titan engine development,
Total production 24 Types 83A and 83B, plus one Type 83E; total 25 aircraft

Survivors

No examples of the Type 83 Primary Trainer survive.

Other information