AVIC AS700 Airship

Last updated
AS700 class
RolePassenger/commercial non-rigid airship
National origin China
Manufacturer AVIC
Designer AVIC
First flightOctober 2022
StatusTest flight
Primary user AVIC
Number built3 prototypes
18-20 ordered

The AVIC AS700-class of airships (otherwise known as the Xiangyun-class which translates to auspicious clouds [1] ) is a class of non-rigid airships built for commercial and tourism use. It is developed and built by AVIC as its first attempt in the civilian airship market.

Contents

Design and development

The AS700 is a medium-sized blimp that is around 48 meters (158 ft) long, a height of 12 meters (39 ft) and a total volume of around 3,500 m3 (123,600 ft3). [2] It is powered by helium like all modern airships. [2]

The AS700 has an ellipsoid hull, with a rigid tail configuration done in an "X" positioning rather than the traditional "+" positioning. [2] The design is considered as a light and cost-effective capsule-shaped airship. [3] The tail has flight control surfaces to allow in ease in steering. The gondola of the airship possess a non-retractable single-point landing gear under the rear which creates a center of gravity that gives the AS700 stability when being ferried on the ground. [2]

As a non-rigid airship, the AS700's envelope is a single lift gas cell manufactured from a multi-layer fabric-film laminate composite material that provides the needed strength, low helium leak rate, tear and weather resistance. Within the outer envelope, the airship possess ballonets for pitch control. [1] [2] The ballonets are made from lightweight polymer cells which is equipped with helium safety valves to prevent over-pressurization and to allow for a safe landing in the event of maneuvering system failure. [2]

The AS700 feature modern fly-by-wire flight control systems with advanced avionics, with the gondola being big enough to house a single pilot alongside 9 passengers and can be configured with a food service facility and a washroom. [1] [2] [4] The large windows are designed to open in flight. Pilot controls are done with a side stick controller, which makes the blimp easy to operate. [2] It can also be configured for unmanned operations.

An interesting aspect of the AS700 is its thrust-vectoring features. The blimp possess modern thrust vectoring propulsion systems that allows the AS700 to do both STOL and VTOL operations. [2] The maximum takeoff weight is 4,150 kg with the maximum range being 700 km. [1] [2] Likewise, its maximum flight time is recorded to be 10 hours and is capable of achieving a maximum speed of a 100 km/hr. [2] Since it is a civilian blimp, AVIC recommends that the airship to not fly under treacherous weather conditions such as thunderstorms, snowstorms, heavy fog or lightning. [2]

Overview and history

The AS700 is designed largely for civilian usage, specifically, in the tourism sector. The project first began in August 2018. [5] According to the project manager of the AS700, Du Wei, he stated that the airship's market is built in line with China's consumption transformation and upgrading needs. [1] Specifically for low-altitude sightseeing and tourism as well as potentially expanding the ship's services to emergency rescue, urban public services and other fields. [1]

Currently, three prototypes were built. The first was an unmanned platform that flew in October 2022 as a technological demonstrator. [2] The second and third prototypes were manned vehicles tasked in completing various tests to ensure safety checks. The second prototype made its maiden flight in Hubei on the 29 December 2022. [2] The flight lasted 39 minutes. On the 13 December 2023, the Civil Aviation Administration of China issued a type certificate for the AS700, making it the first manned airship in China to be domestically developed and certified. [2] The third prototype successfully made its maiden voyage on April 2, 2024, in Hubei province again. [2] [6] The flight took one hour and 46 minutes. [7]

AVIC estimates that there is a market demand for 100 airships of this type over the next 10 years, [1] but currently, it has only received orders of around 18-20 copies which should delivered by the end of 2024. [7] [1]

Specifications

General characteristics

Performance

Related Research Articles

<span class="mw-page-title-main">Aircraft</span> Vehicle or machine that is able to fly by gaining support from the air

An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or the dynamic lift of an airfoil, or, in a few cases, direct downward thrust from its engines. Common examples of aircraft include airplanes, helicopters, airships, gliders, paramotors, and hot air balloons.

<span class="mw-page-title-main">Blimp</span> Non-rigid airship

A blimp (/blɪmp/), or non-rigid airship, is an airship (dirigible) without an internal structural framework or a keel. Unlike semi-rigid and rigid airships, blimps rely on the pressure of the lifting gas inside the envelope and the strength of the envelope itself to maintain their shape. Blimps are known for their use in advertising, surveillance, and as observation platforms due to their maneuverability and steady flight capabilities.

<span class="mw-page-title-main">Airship</span> Powered lighter-than-air aircraft

An airship, dirigible balloon or dirigible is a type of aerostat or lighter-than-air aircraft that can navigate through the air flying under its own power. Aerostats use buoyancy from a lifting gas that is less dense than the surrounding air to achieve the lift needed to stay airborne.

<span class="mw-page-title-main">Zeppelin NT</span> Class of airship

The Zeppelin NT is a class of helium-filled airships being manufactured since the 1990s by the German company Zeppelin Luftschifftechnik GmbH (ZLT) in Friedrichshafen. The initial model is the N07. The company considers itself the successor of the companies founded by Ferdinand von Zeppelin which constructed and operated the very successful Zeppelin airships in the first third of the 20th century. There are, however, a number of notable differences between the Zeppelin NT and original Zeppelins as well as between the Zeppelin NT and usual non-rigid airships known as blimps. The Zeppelin NT is classified as a semi-rigid airship.

<span class="mw-page-title-main">Aerostat</span> Lighter-than-air aircraft

An aerostat is a lighter-than-air aircraft that gains its lift through the use of a buoyant gas. Aerostats include unpowered balloons and powered airships. A balloon may be free-flying or tethered. The average density of the craft is lower than the density of atmospheric air, because its main component is one or more gasbags, a lightweight skin containing a lifting gas to provide buoyancy, to which other components such as a gondola containing equipment or people are attached. Especially with airships, the gasbags are often protected by an outer envelope.

<span class="mw-page-title-main">Goodyear Blimp</span> Airship fleet used for promotional purposes

The Goodyear Blimp is any one of a fleet of airships operated by the Goodyear Tire and Rubber Company, used mainly for advertising purposes and capturing aerial views of live sporting events for television. The term blimp itself is defined as a non-rigid airship—without any internal structure, the pressure of lifting gas within the airship envelope maintains the vessel's shape.

<span class="mw-page-title-main">J-class blimp</span> Type of aircraft

The J-class blimps were non-rigid airships designed by the Navy Bureau of Aeronautics and Goodyear Tire & Rubber Company in the early 1920s for the US Navy.

<span class="mw-page-title-main">N-class blimp</span> American patrol airship

The N-Class, or as popularly known, the "Nan ship", was a line of non-rigid airships built by the Goodyear Aircraft Company of Akron, Ohio for the US Navy. This line of airships was developed through many versions and assigned various designators as the airship designation system changed in the post World War II era. These versions included airships configured for both anti-submarine warfare and airborne early warning (AEW) missions.

<span class="mw-page-title-main">Airship Industries Skyship 600</span> British non-rigid airship

The Airship Industries Skyship 600 is a modern airship, originally designed by British company Airship Industries, further developed by a subsidiary of Westinghouse Electric Corporation. The type certificate holder is now Skyship Services of Orlando, Florida.

The K-1 was an experimental blimp designed by the United States Navy in 1929. The K-1 was not the prototype of the later K-class blimps.

<span class="mw-page-title-main">Semi-rigid airship</span> Lighter-than-air aircraft

A semi-rigid airship is an airship which has a stiff keel or truss supporting the main envelope along its length. The keel may be partially flexible or articulated and may be located inside or outside the main envelope. The outer shape of the airship is maintained by gas pressure, as with the non-rigid "blimp". Semi-rigid dirigibles were built in significant quantity from the late 19th century but in the late 1930s they fell out of favour along with rigid airships. No more were constructed until the semi-rigid design was revived by the Zeppelin NT in 1997.

The Goodyear Type AD was a small airship built in the United States in the mid-1920s. The first example, christened Pilgrim, was Goodyear's first civil airship, and their first airship to use helium as its lift gas. Originally intended for pleasure cruising, it soon found its true calling as a promotional vehicle as the first "Goodyear Blimp" in a line that has continued for over ninety years. The Type AD was a conventional blimp design with a gondola that could carry two passengers in addition to the flight crew. While usually described as a non-rigid type, the design in fact incorporated a triangular-section magnesium girder as a keel, fastened inside the envelope. The craft carried its own collapsible mooring mast which allowed it to "land" anywhere that 250 ft × 250 ft of clear ground was available.

<span class="mw-page-title-main">Goodyear GZ-20</span> Type of aircraft

The Goodyear GZ-20/20A was a class of non-rigid airship or blimp introduced in 1969 by The Goodyear Tire and Rubber Company in the United States as its signature promotional aircraft, the Goodyear Blimp. The design is based on the previous Goodyear GZ-19 class. The GZ-20 featured a larger envelope to carry the "Super-Skytacular" advertising night sign and more powerful engines. The GZ-20s were the mainstay of Goodyear's airship operations until 2017, when they were replaced with the new Zeppelin NT semi-rigid airship.

<span class="mw-page-title-main">Coastal class airship</span> Type of aircraft

The Coastal Class were a class of non-rigid airship or "blimp" used by the Royal Naval Air Service (RNAS) during World War I. The C-class blimp operated by the United States Navy after the war was a completely unrelated design. In total 35 Coastals were built, all at RNAS Kingsnorth, Kent. Entering service in 1916, the Coastal class remained in widespread service until 1918, with a few members of the class still in service at the signing of the Armistice, while others were replaced by the improved C-Star class as they became unfit for service. The blimps were used for long anti-submarine patrols in the Western Approaches and English Channel, protecting convoys from German U-boats. The Coastal class was one of the first aircraft types specifically designed to detect and attack submarines.

<i>Patrie</i> (airship) 1900s French airship

The Lebaudy Patrie was a semi-rigid airship built for the French army in Moisson, France, by sugar producers Lebaudy Frères. Designed by Henri Julliot, Lebaudy's chief engineer, the Patrie was completed in November 1906 and handed over to the French army the following month. The Patrie bears the distinction of being the first airship built specifically for military service.

The Loral GZ-22 was a class of non-rigid airship, or blimp first flown in 1989 and operated by Goodyear as its flagship promotional aircraft, with civil registration N4A and christened Spirit of Akron. This was the only airship of this class ever built. Goodyear originally designed the GZ-22 to demonstrate the possible renewed use of airships to the United States Navy, which had ended their airship operations in 1962. The GZ-22 was designed by Goodyear, but built by Loral after Goodyear sold its aerospace division to Loral in 1987. The GZ-22 had a steel-framed, composite-skinned gondola under a neoprene-impregnated polyester 2-ply envelope, inflated with helium. At its launch in 1987, the 205-foot 6-inch long Spirit of Akron was the longest airship in service at that time. The GZ-22 Type Certificate was issued on 31 August 1989.

<span class="mw-page-title-main">Airship Industries</span>

Airship Industries was a British manufacturers of modern non-rigid airships (blimps) active under that name from 1980 to 1990 and controlled for part of that time by Alan Bond. The first company, Aerospace Developments, was founded in 1970, and a successor, Hybrid Air Vehicles, remains active as of 2022. Airship Industries itself was active between 1980 and 1990.

<span class="mw-page-title-main">Hybrid Air Vehicles Airlander 10</span> British hybrid airship prototype

The Hybrid Air Vehicles Airlander 10 is a hybrid airship designed and built by British manufacturer Hybrid Air Vehicles (HAV). Comprising a helium airship with auxiliary wing and tail surfaces, it flies using both aerostatic and aerodynamic lift and is powered by four diesel engine-driven ducted propellers.

<span class="mw-page-title-main">Airship Industries Skyship 500</span> British non-rigid airship

The Skyship 500 is a non-rigid airship designed and built in the United Kingdom during the 1980s.

The Mantainer Ardath is a non-rigid airship designed and built in Australia during the 1970s.

References

  1. 1 2 3 4 5 6 7 8 "China's AS700 manned airship completed its first flight". JEC (Press release).
  2. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 "Aviation Industry Corporation of China (AVIC) – AS700 blimp, pp. 1-13" (PDF) (Press release).
  3. "China Test Flies Airship for Tourism Sector, Urban Services". e-Turbo News (Press release).
  4. "Chinese Airship, The AS700, Takes Flight". Aero News (Press release).
  5. "China's Aviation giant set to deliver new sightseeing Airships". Space Daily (Press release).
  6. "China trials sightseeing airship". South Africa's Travel News (Press release).
  7. 1 2 "China's AS700 airship completes maiden ferry flight". Urban Air Mobility (Press release).