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{{Use dmy dates|date=December 2016}}
{{Use British English|date=December 2016}}
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{|{{Infobox Aircraft Begin
{|{{Infobox aircraft begin
| name=T.T.A
| name=T.T.A
| image=
| image=
| caption=
| caption=
}}{{Infobox Aircraft Type
}}{{Infobox aircraft type
| type=Two seat fighter
| type=Two-seat fighter
| national origin=United Kingdom
| national origin=United Kingdom
| manufacturer=[[British and Colonial Aeroplane Company]]
| manufacturer=[[British and Colonial Aeroplane Company]]
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|}
|}


The '''Bristol Type 6 T.T.A''' was a [[United Kingdom|British]] two-seat, twin-engine [[biplane]] designed in 1915 as a defence [[Fighter aircraft|fighter]]. Two prototypes were built, but the T.T. did not go into production.
The '''Bristol Type 6 T.T.A''' was a British two-seat, twin-engine [[biplane]], designed in 1915 as a defence [[Fighter aircraft|fighter]]. Two prototypes were built, but the T.T.A. did not go into production.


==Development==
==Development==
The Bristol T.T.A was designed in 1915 to a [[War Office]] requirement for a local defence aircraft. The T.T.A was a two-seat, twin-engine biplane with ''T.T.'' standing for twin [[Tractor configuration|tractor]]; the Bristol Type number 6 was added retrospectively in 1923.<ref name="Barnes">{{Harvnb|Barnes|1964|p=384}}</ref> The guiding principles in the design were compactness and a wide field of fire from both cockpits.
The Bristol T.T.A was designed in 1915 to a [[War Office]] requirement for a local defence aircraft. The T.T.A was a two-seat, twin-engine biplane with ''T.T.'' standing for twin [[Tractor configuration|tractor]]; the Bristol Type number 6 was added retrospectively in 1923.<ref name="Barnes">{{Harvnb|Barnes|1964|p=384}}</ref> The guiding principles in the design were compactness and a wide field of fire from both cockpits.


The T.T.A<ref name="Barnes">{{Harvnb|Barnes|1970|pp=101–3}}</ref> was an [[Swept wing|unswept]] biplane with slight [[Stagger (aviation)|stagger]], the wings having constant [[Chord (aircraft)|chord]] and carrying long [[aileron]]s on the upper planes. The wings were of three-bay construction, the inner [[interplane strut]]s supporting the engines in rectangular nacelles mid-way between the wings. Twin-wheeled [[undercarriage]] units were mounted below each engine, with a tailskid and a nose skid to prevent nosing over. The large area [[tailplane]] was the same shape as that of the [[Bristol Scout|Scout D]], with the same unbalanced [[Elevator (aircraft)|elevator]]s, but the finless [[rudder]] was balanced. The gunner sat in a cockpit right in the nose of the aircraft, armed with two free-mounted 0.303&nbsp;in (7.7&nbsp;mm) [[Lewis Gun]]s. The pilot, sited behind the wing trailing edge, had a rear pointing Lewis gun.<ref name="Barnes"/>
The T.T.A<ref name="Barnes70">{{Harvnb|Barnes|1970|pp=101–3}}</ref> was an [[Swept wing|unswept]] biplane with slight [[Stagger (aviation)|stagger]], the wings having constant [[Chord (aircraft)|chord]] and carrying long [[aileron]]s on the upper planes. The wings were of three-bay construction, the inner [[interplane strut]]s supporting the engines in rectangular nacelles midway between the wings. Twin-wheeled [[Landing gear|undercarriage]] units were mounted below each engine, with a tailskid and a noseskid to prevent nosing over. The large area [[tailplane]] was the same shape as that of the [[Bristol Scout|Scout D]], with the same unbalanced [[Elevator (aircraft)|elevator]]s, but the finless [[rudder]] was balanced. The gunner sat in a cockpit in the nose of the aircraft, armed with two free-mounted 0.303&nbsp;in (7.7&nbsp;mm) [[Lewis Gun]]s. The pilot, sitting behind the wing trailing edge, had a rear-pointing Lewis gun.<ref name="Barnes70"/>


The original design (the Bristol T.T.) envisaged the use of two 150&nbsp;hp (110&nbsp;kW) [[R.A.F. 4]]a engines, but the [[B.E.12]] and [[R.E.8]] aircraft had been given priority for these engines and Bristol were advised to use 120&nbsp;hp (90&nbsp;kW) [[William Beardmore and Company|Beardmore]] engines. With these engines, the aircraft was designated T.T.A , two prototypes were ordered and the first completed on the 26 April 1916. The second followed in May, and both aircraft flew to [[RAF Upavon|Upavon]] for service tests. Top speed and climb rate were better than the T.T.'s higher powered but larger competitor, the [[F.E.4]], but the aircraft was not liked and gained no production orders.<ref name="Barnes"/>
The original design, (the Bristol T.T.), envisaged the use of two 150&nbsp;hp (110&nbsp;kW) [[R.A.F. 4]]a engines, but the [[B.E.12]] and [[R.E.8]] aircraft had been given priority for these engines and Bristol were advised to use 120&nbsp;hp (90&nbsp;kW) [[William Beardmore and Company|Beardmore]] engines. With these engines, the aircraft was designated T.T.A, two prototypes were ordered and the first completed on 26 April 1916. The second followed in May, and both aircraft flew to [[RAF Upavon|Upavon]] for service tests. Top speed and climb rate were better than the T.T.'s higher powered but larger competitor, the [[F.E.4]], but the aircraft was not liked and gained no production orders.<ref name="Barnes70"/>
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==Specifications==
==Specifications==
<!--Use one OR other of the two specification templates. Delete the template code of the one you do not use. aero-specs is designed to handle the specification of gliders and lighter-than-air craft well. They each have their own documentation. In aircraft-specifications the parameter "xxxx more" allows for the addition of a qualifier to the value eg "at low level", "unladen". -->
<!--Use one OR other of the two specification templates. Delete the template code of the one you do not use. aero-specs is designed to handle the specification of gliders and lighter-than-air craft well. They each have their own documentation. In aircraft-specifications the parameter "xxxx more" allows for the addition of a qualifier to the value eg "at low level", "unladen". -->
{{Aircraft specs
{{aerospecs
|ref={{harvnb|Barnes|1970|p=103}}<!-- reference -->
|ref={{harvnb|Barnes|1970|p=103}}<!-- reference -->
|met or eng?=eng<!-- eng for US/UK aircraft, met for all others. You MUST include one or the other here, or no specifications will show -->
|prime units? = imp<!-- eng for US/UK aircraft, met for all others. You MUST include one or the other here, or no specifications will show -->
|crew=2
|crew=two
|capacity=
|length m=11.94
|length m=11.94
|length ft=39
|length ft=39
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|span ft=53
|span ft=53
|span in=6
|span in=6
|width m=<!-- if applicable -->
|width ft=<!-- if applicable -->
|width in=<!-- if applicable -->
|height m=3.81
|height m=3.81
|height ft=12
|height ft=12
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|gross weight lb=5,100
|gross weight lb=5,100
|eng1 number=2
|eng1 number=2
|eng1 type=[[William Beardmore and Company|Beardmore]] water-cooled inline
|eng1 name=[[William Beardmore and Company|Beardmore]] water-cooled inline
|eng1 kw=90<!-- prop engines -->
|eng1 kw=90<!-- prop engines -->
|eng1 hp=120<!-- prop engines -->
|eng1 hp=120<!-- prop engines -->
|eng2 number=
|eng2 type=
|eng2 kw=<!-- prop engines -->
|eng2 hp=<!-- prop engines -->
|max speed kmh=140
|max speed kmh=140
|max speed mph=87
|max speed mph=87
|cruise speed kmh=<!-- if max speed unknown -->
|cruise speed mph=<!-- if max speed unknown -->
|range km=
|range miles=
|endurance h=<!-- if range unknown -->
|endurance min=<!-- if range unknown -->
|ceiling m=
|ceiling ft=
|climb rate ms=2.0
|climb rate ms=2.0
|climb rate ftmin=<ref>{{Harvnb|Barnes|1964|p=102}}</ref> nearly 400
|climb rate ftmin=
|climb rate note=<ref>{{Harvnb|Barnes|1964|p=102}}</ref>
|armament1=2 × 0.303 in (7.7 mm) Lewis guns in forward cockpit
|armament = *2 × 0.303 in (7.7 mm) Lewis guns in forward cockpit
|armament2=1 × 0.303 in (7.7 mm) Lewis guns in pilot's cockpit
*1 × 0.303 in (7.7 mm) Lewis guns in pilot's cockpit
|armament3=
|armament4=
|armament5=
|armament6=
}}
}}
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==References==
==References==

===Notes===
===Notes===
{{reflist}}
{{reflist}}
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===Bibliography===
===Bibliography===
{{refbegin}}
{{refbegin}}
*{{cite book |title= Bristol Aircraft since 1910|last= Barnes|first=C. H. |authorlink= |coauthors= |year=1970 |publisher=Putnam Publishing |location=London |isbn= 0 370 00015 6|page= |pages= |url=|ref=harv }}
*{{cite book |title= Bristol Aircraft since 1910|last= Barnes|first=C. H. |year=1964 |publisher=Putnam Publishing |location=London}}
*{{cite book |title= Bristol Aircraft since 1910|last= Barnes|first=C. H. |year=1970 |publisher=Putnam Publishing |location=London |isbn= 0-370-00015-3}}
{{refend}}
{{refend}}
<!-- ==External links== -->
<!-- ==External links== -->


{{Bristol aircraft|T.T.A}}
{{Bristol aircraft|T.T.A}}
{{Aviation lists}}

⚫
[[Category:British fighter aircraft 1910-1919]]
⚫
[[Category:Bristol aircraft|T.T.A]]


⚫
[[Category:1910s British fighter aircraft]]
[[sr:Бристол T.T.A]]
⚫
[[Category:Bristol Aeroplane Company aircraft|T.T.A]]
[[Category:Aircraft first flown in 1916]]

Latest revision as of 14:59, 15 January 2022

T.T.A
Role Two-seat fighter
National origin United Kingdom
Manufacturer British and Colonial Aeroplane Company
Designer F. Barnwell & L.G. Frise
First flight 26 April 1916
Number built 2

The Bristol Type 6 T.T.A was a British two-seat, twin-engine biplane, designed in 1915 as a defence fighter. Two prototypes were built, but the T.T.A. did not go into production.

Development[edit]

The Bristol T.T.A was designed in 1915 to a War Office requirement for a local defence aircraft. The T.T.A was a two-seat, twin-engine biplane with T.T. standing for twin tractor; the Bristol Type number 6 was added retrospectively in 1923.[1] The guiding principles in the design were compactness and a wide field of fire from both cockpits.

The T.T.A[2] was an unswept biplane with slight stagger, the wings having constant chord and carrying long ailerons on the upper planes. The wings were of three-bay construction, the inner interplane struts supporting the engines in rectangular nacelles midway between the wings. Twin-wheeled undercarriage units were mounted below each engine, with a tailskid and a noseskid to prevent nosing over. The large area tailplane was the same shape as that of the Scout D, with the same unbalanced elevators, but the finless rudder was balanced. The gunner sat in a cockpit in the nose of the aircraft, armed with two free-mounted 0.303 in (7.7 mm) Lewis Guns. The pilot, sitting behind the wing trailing edge, had a rear-pointing Lewis gun.[2]

The original design, (the Bristol T.T.), envisaged the use of two 150 hp (110 kW) R.A.F. 4a engines, but the B.E.12 and R.E.8 aircraft had been given priority for these engines and Bristol were advised to use 120 hp (90 kW) Beardmore engines. With these engines, the aircraft was designated T.T.A, two prototypes were ordered and the first completed on 26 April 1916. The second followed in May, and both aircraft flew to Upavon for service tests. Top speed and climb rate were better than the T.T.'s higher powered but larger competitor, the F.E.4, but the aircraft was not liked and gained no production orders.[2]

Specifications[edit]

Data from Barnes 1970, p. 103

General characteristics

  • Crew: two
  • Length: 39 ft 2 in (11.94 m)
  • Wingspan: 53 ft 6 in (16.31 m)
  • Height: 12 ft 6 in (3.81 m)
  • Wing area: 817 sq ft (75.9 m2)
  • Empty weight: 3,820 lb (1,733 kg)
  • Gross weight: 5,100 lb (2,313 kg)
  • Powerplant: 2 × Beardmore water-cooled inline , 120 hp (90 kW) each

Performance

  • Maximum speed: 87 mph (140 km/h, 76 kn)
  • Rate of climb: 390 ft/min (2.0 m/s) [3]

Armament

  • 2 × 0.303 in (7.7 mm) Lewis guns in forward cockpit
  • 1 × 0.303 in (7.7 mm) Lewis guns in pilot's cockpit

References[edit]

Notes[edit]

  1. ^ Barnes 1964, p. 384
  2. ^ a b c Barnes 1970, pp. 101–3
  3. ^ Barnes 1964, p. 102

Bibliography[edit]

  • Barnes, C. H. (1964). Bristol Aircraft since 1910. London: Putnam Publishing.
  • Barnes, C. H. (1970). Bristol Aircraft since 1910. London: Putnam Publishing. ISBN 0-370-00015-3.
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