Verdástrun B57 Eltanin

B57 Eltanin
Role	Strategic bomber
National origin	Carloso
Manufacturer	Verdástrun
First flight	25 September 1966
Introduction	14 November 1969
Status	In service
Primary user	Carlosian Air Force
Produced	1966–present
Number built	>100

The Verdástrun B57 Eltanin is a long-range, jet-powered flying wing strategic bomber in service with the Carlosian Air Force. It serves alongside the supersonic B58 Lesuth and stealth B72 Sheratan. It is an evolution of the Emergency War-era B45 Alracis, a turboprop aircraft used extensively in the bombing of Bourgougia. In operation since 1969, it is designed to carry both conventional and nuclear weapons.

Initially considered an unlikely contender for the Carlosian Air Force's requirements due to its limited payload capacity and unimpressive range caused by faulty, inefficient engines, an extensive redesign which saw, among other changes, the six TBD turbojets replaced by two large, powerful turbofan engines made it a serious competitor, subsequently being accepted for service. Serial production began in 1969 and ended in 1991 with a total of 588 airframes built. It first saw combat in the Bourgougian Blitz in 1987, flying approximately 10,000 sorties over the course of the conflict and dropping over 80,000 tonnes of bombs on Bourgougian infrastructure. Three aircraft would be lost to combat during the Blitz, one being shot down by an air-to-air missile while two others were shot down by long-range surface-to-air missiles. It also saw action during the Carlosian intervention in the Acrary Civil War and Operation Aúger.

The B57 Eltanin remains in service as the flagship strategic bomber of the Carlosian Air Force, having undergone several extensive upgrades which have modernised avionics and reduced weight by removing obsolete equipment. Combat capabilities have also been expanded, allowing it to carry air-launched anti-ship, ballistic and cruise missiles. 90 remain in combat service, with several dozen more mothballed and the remainder scrapped for spare parts. Despite its age, it is expected that the B57 Eltanin will serve well into the future with the Carlosian Air Force, potentially as late as the 2050s or 2060s.

Development

By the early 1960s, it became increasingly apparent that the turboprop B45 Alracis had become obsolete, lacking aerial refuelling capabilities and speed in an age of increasingly more capable jet fighters. Other aspects of the B45's design had also become obsolete, such as the tail gun; largely irrelevant as air-to-air missiles had become the primary weapon of aerial combat, avionics and all-mechanical flight controls. Additionally, the relatively small bomb bays of the aircraft limited its ability to carry large ordinance such as bunker busters without mounting it externally, which increased drag and therefore eliminated one of the main advantages of the flying wing configuration.

Beginning in 1962, the Air Force approached Verdástrun, asking them to design a successor to the B45 Alracis with the same flying wing configuration, albeit larger, powered by turbojets and equipped with modern avionics. After an extensive design period, the first prototype rolled out in early 1966, with its maiden flight on 25 September 1966. It quickly became apparent that the six turojet engines were inefficient, heavy and suffered from poor workmanship. Amidst threats that the Carlosian Air Force would go with an alternative, more conventional design like the strategic bombers employed by other countries, TBD took over the project and led an extensive redesign, replacing the six turbojets with two extremely powerful turbofan engines derived from that used by a commercial liner. While it proved difficult to fit these in the airframe, it was evident that performance had massively approved. Over a period of several months, intensive air trials were held to test the aircraft, while avionics were incrementally improved. Eventually, the B57 was accepted for service and the first batch of aircraft were commissioned on 14 November 1969.

Variants

B57A

Initial production variant.

B57B

B57C

Entered service immediately after the Bourgougian Blitz following the loss of three aircraft to missile fire. Included an updated electronic warfare suite and chaff pods. Improvements to the bomb bays were also made, allowing better intergration of air-launched cruise and ballistic missiles.

B57D

Newest variant which entered service in 2011. Upgraded engines and a new radar.

Operators

• Carloso
  • Carlosian Air Force

Specifications

Data from the Carlosian Air Force

General characteristics

• Crew: 4 (pilot, co-pilot, bombardier, defensive systems officer)
• Length: ()
• Wingspan: ()
• Height: ()
• Powerplant: 2 × Jardaín non-afterburning turbofans, 95 kN () each

Performance

• Maximum speed: Mach 2.4

Armament

• 3 internal bays for 23,000 kg of ordnance
  • 8 × air-launched cruise missiles
  • 4 × air-launched ballistic missile