War Thunder A2d1

Posted on  by admin
A2D Skyshark
A production A2D-1 in flight
RoleAttack aircraft
National originUnited States
ManufacturerDouglas Aircraft Company
First flight26 March 1950
StatusCanceled
Primary userUnited States Navy
Number built2 XA2D-1 prototypes + 10 A2D-1 pre-production aircraft (4 of which never flew)
Developed fromDouglas A-1 Skyraider

The Douglas A2D Skyshark was an American turboprop-powered attack aircraft built by the Douglas Aircraft Company for the United States Navy. The program was substantially delayed by engine reliability problems, and was canceled because more promising jet attack aircraft had entered development and the smaller escort carriers the A2D was intended to utilize were being phased out.

Design and development[edit]

The A2D 1 is a 6.7 T4 premium US plane, is it worth the money?For ground RB I would say yes, for air. A little bit more complicated.Fuel: Min fuelAmmo: Air. Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example: reference to the series of the aircraft; links to approximate analogues of other nations and research trees. Official data sheet - more details about the performance. The Douglas A2D-1 Skyshark will be the first American aircraft in the game with a contra-rotating propeller and a turboprop engine. It will be a rank IV premium US aircraft. After 1.89 “Imperial Navy”, the Wyvern will no longer be the only aircraft to strike fear into the hearts of ground forces hearing its sound. The War Thunder Team. Author: Ace Thunder Team Uploader: AvarikAT A singleplayer mod for War Thunder based in the Ace Combat universe shortly after the Belkan War, where you get to see the untold story from the point of view of A World With No Boundaries.Currently the mod features the first mission Broken Accord, and The Gauntlet bonus mission.

Douglas A2D-1 Skyshark BuNo. 125485 (seventh of 10 pre-production aircraft) at Idaho Falls Regional Airport

On 25 June 1945, the Bureau of Aeronautics (BuAer) asked Douglas Aircraft for a turbine-powered, propeller-driven aircraft. Three proposals were put forth in the next year and a half: the D-557A, to use two General Electric TG-100s (T31s) in wing nacelles; the D-557B, the same engine, with counter-rotating propellers; and the D-557C, to use the Westinghouse 25D. These were canceled due to engine development difficulties, but BuAer continued to seek an answer to thirsty jets.[1]

On 11 June 1947 Douglas received the Navy's letter of intent for a carrier-based turboprop. The need to operate from Casablanca-classescort carriers dictated the use of a turboprop instead of jet power.[2]

The sole surviving A2D-1 Skyshark on display in 2014

While it resembled the AD Skyraider, the A2D was different in a number of unseen ways. The 5,100-equivalent shaft horsepower (3,800 kW) Allison XT-40-A2 had more than double the horsepower of the Skyraider's R-3350. The XT40 installation on the Skyshark used contra-rotating propellers to harness all the available power. Wing root thickness decreased, from 17% to 12%, while both the height of the tail and its area grew.[3]

Engine-development problems delayed the first flight until 26 May 1950, made at Edwards Air Force Base by George Jansen.[3]

Navy test pilot Cdr. Hugh Wood was killed attempting to land the first prototype XA2D-1, BuNo 122988, on 19 December 1950, on its 15th flight. He was unable to check the rate of descent, resulting in a high-impact crash on the runway.[4] The investigation found the starboard power section of the coupled Allison XT40A turboprop engine had failed and did not declutch. This meant the surviving engine was powering the failed engine's compressor, using up much of its available power. Additionally, the propellers failed to feather. As the wings' lift disappeared, a fatal sink rate was induced.[5]

Additional instrumentation and an automatic decoupler was added to the second prototype, but by the time it was ready to fly on 3 April 1952, sixteen months had passed, and with all-jet designs being developed, the A2D program was essentially dead. Total flight time on the lost airframe was barely 20 hours.[5]

Allison failed to deliver a 'production' engine until 1953, and while testing an XA2D with that engine, test pilot C. G. 'Doc' Livingston pulled out of a dive and was surprised by a loud noise and pitch up. His windscreen was covered with oil and the chase pilot told Livingston that the propellers were gone. The gearbox had failed, but Livingston successfully landed the airplane.[6] The A4D was ready to fly by the summer of 1954, and the escort carriers were being mothballed, so that time had run out for the troubled A2D program.[7]

Twelve Skysharks were built, two prototypes and ten pre-production aircraft. Most were scrapped or destroyed in accidents, and only one has survived.[8]

Aircraft on display[edit]

  • A2D-1 Skyshark, BuNo. 125485, is at the Gillespie Field Annex of the San Diego Air & Space Museum in El Cajon, California. It was restored for static display by Pacific Fighters.[8]

Specifications (A2D-1)[edit]

Drawings for the A2D-1

Data from Francillon 1988, pp. 441–443

General characteristics

  • Crew: 1
  • Length: 41 ft 2 in (12.55 m)
  • Wingspan: 50 ft 0 in (15.24 m)
  • Height: 17 ft 1 in (5.21 m)
  • Wing area: 400 sq ft (37 m2)
  • Airfoil: NACA 0012[9]
  • Empty weight: 12,944 lb (5,871 kg)
  • Gross weight: 18,720 lb (8,491 kg)
  • Max takeoff weight: 22,966 lb (10,417 kg)
  • Fuel capacity: 500 US gal (420 imp gal; 1,900 l), plus 3 × 100 US gal (83 imp gal; 380 l) drop tanks
  • Powerplant: 1 × Allison XT40-A-2turboprop, 5,500 shp (4,100 kW) equivalent - (5,100 shp (3,800 kW) + 830 lbf (3.7 kN) residual thrust)
  • Propellers: 6-bladed Aeroproducts, 14 ft (4.3 m) diameter contra-rotating constant-speed fully-feathering reversible-pitch propeller[6]

Performance

War thunder a2d1 game
  • Maximum speed: 492 mph (792 km/h, 428 kn) at 17,592 lb (7,980 kg) at 40,000 ft (12,000 m)
  • Maximum speed at sea level: 477.5 mph (414.9 kn; 768.5 km/h) at 17,592 lb (7,980 kg)
  • Cruise speed: 276 mph (444 km/h, 240 kn)
  • Stall speed: 100.5 mph (161.7 km/h, 87.3 kn) at 17,592 lb (7,980 kg)
  • Combat range: 512 mi (824 km, 445 nmi) at 17,592 lb (7,980 kg) at 338 mph (294 kn; 544 km/h)
  • Ferry range: 2,200 mi (3,500 km, 1,900 nmi)
  • Service ceiling: 48,300 ft (14,700 m) at 17,592 lb (7,980 kg)
  • Rate of climb: 7,960 ft/min (40.4 m/s) at 17,592 lb (7,980 kg) s.l.
  • Wing loading: 46.8 lb/sq ft (228 kg/m2)
  • Power/mass: 0.333 shp/lb (0.547 kW/kg)
  • Take-off field distance sea level hot: 465 ft (142 m) at 17,592 lb (7,980 kg)
  • Take-off distance to 50 ft (15 m): 940 ft (290 m) at 17,592 lb (7,980 kg)
  • Take-off distance to 50 ft (15 m) hot: 1,350 ft (410 m) at 17,592 lb (7,980 kg)

Armament

  • Guns: 4 × 20 mm (0.8 in) T31 cannon
  • Hardpoints: 13 with a capacity of 5,500 lb (2,500 kg),

See also[edit]

Related development

Aircraft of comparable role, configuration, and era

Related lists

Notes[edit]

Wikimedia Commons has media related to Douglas A2D Skyshark.
  1. ^Francillon 1988, p. 441.
  2. ^Markgraf 1997, p. 18.
  3. ^ abFrancillon 1988, p. 442.
  4. ^Heinemann and Rausa 1980, p. 180.
  5. ^ abMcCullough 1995, pp. 18–20.
  6. ^ ab'An Aeroproducts Installation Engineer Remembers'. Aeroproducts Propellers. Retrieved 6 February 2018.
  7. ^Heinemann and Rausa 1980, p. 183.
  8. ^ ab'Douglas A2D Skyshark Survivor'. Goleta Air & Space Museum. Retrieved 26 November 2018.
  9. ^Lednicer, David. 'The Incomplete Guide to Airfoil Usage'. m-selig.ae.illinois.edu. Retrieved 16 April 2019.

Bibliography[edit]

  • Allen, Francis (Spring 1994). 'Shark With No Teeth: The Story of the Douglas A2D Skyshark'. Air Enthusiast. No. 53. pp. 69–75. ISSN0143-5450.
  • Francillon, René J. McDonnell Douglas Aircraft Since 1920: Volume I. Annapolis, Maryland: Naval Institute Press, 1988. ISBN0-87021-428-4.
  • Heinemann, Edward, H. and Rausa, Rosario. Combat Aircraft Designer. London: Jane's Publishing, 1980. ISBN0-7106-0040-2.
  • Markgraf, Gerry. Douglas Skyshark, A2D Turbo-Prop Attack (Naval Fighters No. 43). Simi Valley, CA: Ginter Books, 1997. ISBN0-942612-43-4.
  • McCullough, Anson. 'Skyshark', Wings 25(5), October 1995, pages 18–20
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Douglas_A2D_Skyshark&oldid=1018752495'

The Douglas A2D-1 Skyshark was created as part of a concept to replace the piston-engine AD-1 Skyraider with a more modern and powerful turboprop model.

Briefly: The Skyshark will suit fans of the attack aircraft, particularly those familiar with the Skyraider models. The same excellent vehicle but with even better dynamics and firepower.

In the early years following the war, jet engines underwent rapid development. This attracted the interest of the US Navy, which sought to arm itself with aircraft that were superior to that of potential opponents in speed, altitude, payload, and flight range.

As it turned out, jet engines were perfect for fighter aircraft but too “voracious” for strike aircraft, as they significantly reduced their range. The best engineering solution was to introduce the turboprop engine, which was a task the Douglas company undertook.

War Thunder Skins

War thunder a2d worth it

War Thunder A2d1 Cheats

Initially, engineers simply wanted to replace the piston engine of the Skyraider attack aircraft with a turboprop engine. However, this led nowhere and the vehicle required significant modification. In the end, the engineers settled on a prototype with Allison Т-40А-2 turboprop engines and coaxial propellers.

The first flight of the XA2D-1 prototype, called the Skyshark, took place on May 26, 1950, but engine vibration nearly destroyed the aircraft and it was forced to land after only two minutes. By December 1950, the prototype had already completed over a dozen flights. However, a routine flight on December 19, 1950, ended in tragedy. Due to issues with the engine, the vehicle and pilot crashed. Nevertheless, testing continued and, despite the many technical problems that plagued the aircraft, the army ordered 10 pre-production models of the A2D-1. However, on August 5, 1954, another accident occurred when the main gearbox failed, and the aircraft crashed a short distance outside Los Angeles. This time, the pilot managed to escape the aircraft, but the project was closed and it was decided to dismantle any existing prototypes. Apparently, this decision was influenced by the fact that in the same year for the first time Douglas got another project in the air, this later became the famous A4D Skyhawk - a new generation of jets.

A2D-1 Skyshark. Fighter-attacker, USA, rank IV. Premium.

Pros:

  • Powerful turboprop engines
  • Impressive load
  • Premium bonuses

Cons:

  • Still slower than some jet fighters it may counter

Despite the fact that the Douglas A2D-1 Skyshark never made it into mass production in reality, players will have the opportunity to experience this “Shark” in combat in the 1.89 update.

Fun fact: There is a large fuel tank behind the cockpit with hot engine exhaust pipes running under it, so attention was paid to the insulation and fire-extinguishing equipment. In the event the tank were to take damage, the engineers provided a special drainage system that drained the fuel spilling it into the fuselage cavity to flow overboard.

Externally, the aircraft looks large and clunky. However, it’s a deceptive misconception. Twin turboprop engines provide 5,500 horsepower, allowing the vehicle to reach speeds of about 800 km/h near the ground and more than 770 km/h at medium altitudes. To harness this power and eliminate the harmful effects of torque on the aircraft, it was decided to use counter-rotating propellers.

Naturally, the turboprop engine increased the combat capabilities of the aircraft. The Skyshark is equipped with four 20mm AN-M3 cannons mounted in the wing panels, each loaded with 200 rounds of ammunition. It is also capable of carrying HVAR rockets, torpedoes, and bombs weighing 500 to 2,000 pounds. Rocket fans will especially appreciate the ability to suspend 20 HVARs in one load.

The engineers also considered defence: the cockpit, fuel tank, and the lower engine are covered in armoured sheets up to 10 mm thick. Overall, this aircraft is like an upgraded version of the Skyraider AD-4, so mastering it will be a simple and straightforward process.

The Douglas A2D-1 Skyshark will be the first American aircraft in the game with a contra-rotating propeller and a turboprop engine. It will be a rank IV premium US aircraft. After 1.89 “Imperial Navy”, the Wyvern will no longer be the only aircraft to strike fear into the hearts of ground forces hearing its sound.

The War Thunder Team

War Thunder Wiki

Previous Development Blogs: