Carter PAV

Last updated

PAV
CarterPAV.jpg
On display 2014
RoleCompound autogyro
Manufacturer Carter Aviation Technologies
First flight5 January 2011
StatusIn test
Number built2
Developed from CarterCopter

The Carter PAV (Personal Air Vehicle) is a two-bladed, compound autogyro developed by Carter Aviation Technologies to demonstrate slowed rotor technology. The design has an unpowered rotor mounted on top of the fuselage, wings like a conventional fixed-wing aircraft mounted underneath, and a controllable pitch pusher propeller at the rear of the fuselage. [1] [2] Heavy weights (75 pounds or 34 kilograms each) [3] are placed in the rotor tips to enhance rotational energy and to reduce flapping.

Contents

Development

When the CarterCopter was damaged in 2005 due to a gear-up landing caused by pilot error, the cost of repair was deemed higher than the cost of making a new aircraft with the added benefit of incorporating lessons learned from the first aircraft. Design of the PAV was begun during 2005. [4] [5] Several changes and development problems occurred along the way; twin boom was deemed unnecessary, so a single boom was constructed, and flaws in rotor blades and hub were revealed during testing and then corrected. [6] [7]

On 16 November 2009, the AAI Corporation (a division of Textron) signed a 40-year exclusive license agreement [8] [9] with the company concerning all unmanned aircraft systems, one of which was intended to deliver 3,000 pounds (1,400 kg) of cargo similar to the unmanned Kaman K-MAX, but over a future range of 1,300 nautical miles (2,400 km) [8] [10] [11] compared to the demonstrated 150 nautical miles (280 km) or more of the K-MAX. [12] The agreement committed CarterCopters to developing the technology to maturity, in exchange for exclusive rights to develop UAVs for the next 40 years. The first product in the AAI agreement [10] was to be an autonomous slowed rotor/compound (SR/C) aircraft based on the Carter Personal Air Vehicle. [13] [14] [15]

"Critical Design Review" (CDR) for AAI Corporation was performed around January 2010 when the prototype was already being built. Usually a CDR is performed before a vehicle is built. [3]

In 2014, Carter said they bought back the license from AAI [16] and is seeking production partners outside USA, [17] [18] hoping for production 3–5 years later. [19]

Testing

The PAV was taxi tested in autumn of 2010 [3] [20] at Olney Airport after FAA Special Airworthiness Certificate [21] on 27 July 2010, and performed traffic pattern movement on 2 December 2010, piloted by Larry Neal at the controls and co-pilot Robert Luna. [3] [22] Larry Neal was also one of the pilots of the CarterCopter at Olney in 2005. [23] [24]

The first flight occurred on 5 January 2011 at Olney without wings and lasted 36 minutes, which qualified Carter for a milestone payment. [25] [26] [27]

Carter stated that the PAV performed its first zero-roll jump take-off on 18 January 2011, [22] to a height of 120 feet (37 m). Eight jump take-offs were performed. [22] There are some electrical issues with the aircraft, and it is not in volume production. [28] [29]

The PAV flew traffic patterns with wings at Olney in January 2012, [30] and has since flown winged test flights. It flew a few hours at a time, but its flight certificate restricted it to within 5 miles (8.0 km) of Olney. [31]

As of June 2012, development of the PAV is a year behind schedule [32] due to various technical problems, [33] and a delay of a further year was caused by rotor RPM software control issues. [34] Carter received funding from the Wichita Falls Economic Development Corporation in 2010 to complete the PAV. [35] [36] [37] [38] Carter views the lack of a PAV flight simulator as a mistake, and attempts to build one. The previous CarterCopter was designed using a flight simulator. [33]

Carter says that the PAV has a lift to drag ratio of 10–15, [39] and reached an advance ratio of 0.85 in 2012. [40] [41]

According to Carter, the PAV reached Mu-1 on 7 November 2013. It also achieved a speed of 174 kn (322 km/h; 200 mph), and the rotor was slowed down to 113 rpm. [42] [43] The PAV flew its first public show flight outside Olney when it flew to Wichita Falls later that month. [44] Carter says the PAV has achieved a speed of 204 miles per hour (328 km/h) at an altitude of 16,000 feet (4,900 m), a Mu of 1.13 [34] [45] and an L/D of 11.6 [46] -15. Carter has applied to the FAA to change the PAVs certificate from research and development to demonstration. [47]

The second PAV (called PAV-II, registration N210AV) was flight approved in March 2014, [48] [49] and demonstrated at Sun 'n Fun air festival and MacDill Air Force Base in 2014, both in Florida. [50] In July 2014, it was displayed at Oshkosh Airshow. Carter says it has flown 186 kn (344 km/h; 214 mph) at 18,000 feet (5,500 m). [17] The first non-Carter pilots flew the aircraft in 2015. [51]

Design

Computer aided design and X-plane flight simulation were used during development. [2] [52] Unlike the twin-boom CarterCopter, the PAV has a single tailboom. [53] [54] A tilting mast allows the rotor to be tilted 15 degrees forward and 30 degrees aft to allow different centres of gravity and wing angle-of-attacks. [54] [55]

Helicopter rotors are designed to operate at a fixed RPM [56] [57] [58] (within a narrow range of a few percent), [59] [60] whereas Carter uses RPM ranges between 100 and 350. [61] Most aircraft have two energy parameters (speed and altitude) which the pilot can trade between, [62] but Carter technology attempts to use rotor rotation as a third energy parameter. [63] [64]

The purpose of the Slowed Rotor/Compound aircraft is to enhance the flight envelope compared to fixed-wing aircraft, helicopters and traditional autogyros, [29] by minimizing the dangerous areas of the stall speed diagram/height-velocity diagram [64] [65] as well as moving the speed limit up. [66]

The PAV has traditional airplane-like controls (Vernier type [3] ), but the stick also controls the rotor. [19] Most controls were automated in 2011, [21] [67] and jump-takeoff is performed at the push of a button. [19] Materials used include glass fiber, aluminum, titanium, and steel, as well as autoclaved carbon/epoxy prepreg with aramid honeycomb core on the PAV-II. [68] The tip weights had been made of tungsten, while the current (2013) are made of steel. [69]

Suppliers for the aircraft include Blue Mountain Avionics for avionics and air-to-ground video and telemetry, and Sky Ox Oxygen Systems as the PAV is not pressurized. [55] 60 channels of information convey sensor measurements from the aircraft to a ground computer, and 4 video cameras tape the flights. [22] The engine is equipped with a performance enhancement system by Nitrous Express. [70]

Operation

The PAV has flight characteristics similar to other Carter aircraft. When stationary on the ground, the engine powers up the flat pitch rotor to 370 RPM, [3] and the engine is then disengaged from the rotor to provide full power to the propeller. [61] [67]

External media
Images
Searchtool.svg PAV in flight 1 2
Video
Nuvola apps kaboodle.svg PAV jump take-off, with wings

The rotor now has substantial rotational energy due to the tip weights (usable temporary eng1 equivalent to 1,000 horsepower or 750 kilowatts), [71] and the rotor blades are pitched to push air down and lift the aircraft in a jump takeoff. [61] [72] While altitude is reached, the aircraft transitions into forward flight using the pusher propeller, and the rotor shifts to autorotation (windmilling) with air flowing up through the rotor. As speed increases, the air flow increases rotor RPM like other autogyros. Once sufficient airspeed is reached (around 70–85 miles per hour or 113–137 kilometres per hour) [73] for the small wings to provide lift, rotor blades are feathered to reduce rotor speed to 100 RPM [61] [74] and minimize drag, and lift is provided mostly by the wings [1] when speed reaches 150 miles per hour (240 km/h). [73] Rotor lift is reduced to 10%, and flight efficiency is somewhat below that of a commercial jet plane. [75]

Specifications (PAV)

Data from Jane's All the World's Aircraft [13] [76]

General characteristics

Performance

See also

Related development

Related Research Articles

<span class="mw-page-title-main">Flying car</span> Car that can be flown in much the same way as a car may be driven

A flying car or roadable aircraft is a type of vehicle which can function both as a road vehicle and as an aircraft. As used here, this includes vehicles which drive as motorcycles when on the road. The term "flying car" is also sometimes used to include hovercars and/or VTOL personal air vehicles. Many prototypes have been built since the early 20th century, using a variety of flight technologies. Most have been designed to take off and land conventionally using a runway. Although VTOL projects are increasing, none has yet been built in more than a handful of numbers.

<span class="mw-page-title-main">Bell Boeing V-22 Osprey</span> Military transport tiltrotor

The Bell Boeing V-22 Osprey is an American multi-mission, tiltrotor military aircraft with both vertical takeoff and landing (VTOL) and short takeoff and landing (STOL) capabilities. It is designed to combine the functionality of a conventional helicopter with the long-range, high-speed cruise performance of a turboprop aircraft. The V-22 is operated by the United States and Japan, and is not only a new aircraft design, but a new type of aircraft that entered service in the 2000s, a tiltrotor compared to fixed wing and helicopter designs. The V-22 first flew in 1988 and after a long development was fielded in 2007. The design essentially combines the vertical takeoff ability of a helicopter, but the range of a fixed-wing airplane.

<span class="mw-page-title-main">AAI RQ-7 Shadow</span> American unmanned aerial vehicle

The AAI RQ-7 Shadow is an American unmanned aerial vehicle (UAV) used by the United States Army, Australian Army, Swedish Army, Turkish Air Force and Italian Army for reconnaissance, surveillance, target acquisition and battle damage assessment. Launched from a trailer-mounted pneumatic catapult, it is recovered with the aid of arresting gear similar to jets on an aircraft carrier. Its gimbal-mounted, digitally stabilized, liquid nitrogen-cooled electro-optical/infrared (EO/IR) camera relays video in real time via a C-band line-of-sight data link to the ground control station (GCS).

<span class="mw-page-title-main">Autogyro</span> Rotorcraft with unpowered rotor

An autogyro, or gyroplane, is a class of rotorcraft that uses an unpowered rotor in free autorotation to develop lift. While similar to a helicopter rotor in appearance, the autogyro's unpowered rotor disc must have air flowing upward across it to make it rotate.

<span class="mw-page-title-main">Tiltrotor</span> Aircraft type

A tiltrotor is an aircraft that generates lift and propulsion by way of one or more powered rotors mounted on rotating shafts or nacelles usually at the ends of a fixed wing. Almost all tiltrotors use a transverse rotor design, with a few exceptions that use other multirotor layouts.

The CarterCopter is an experimental compound autogyro developed by Carter Aviation Technologies in the United States to demonstrate slowed rotor technology. On 17 June 2005, the CarterCopter became the first rotorcraft to achieve mu-1 (μ=1), an equal ratio of airspeed to rotor tip speed, but crashed on the next flight and has been inoperable since. It is being replaced by the Carter Personal Air Vehicle.

<span class="mw-page-title-main">AAI Corporation</span>

AAI Corporation is an aerospace and defense development and manufacturing firm, located in Hunt Valley, Maryland, US. Formerly a wholly owned subsidiary of United Industrial Corporation, AAI was acquired by Textron in 2007. It currently operates as a unit of Textron Systems and employs more than 2,000.

<span class="mw-page-title-main">Boeing A160 Hummingbird</span> Unmanned aerial vehicle by Boeing

The Boeing A160 Hummingbird is an unmanned aerial vehicle (UAV) helicopter. Its design incorporates many new technologies never before used in helicopters, allowing for greater endurance and altitude than any helicopter currently in operation.

<span class="mw-page-title-main">Gyrodyne</span> Type of VTOL aircraft

A gyrodyne is a type of VTOL aircraft with a helicopter rotor-like system that is driven by its engine for takeoff and landing only, and includes one or more conventional propeller or jet engines to provide forward thrust during cruising flight. During forward flight the rotor is unpowered and free-spinning, like an autogyro, and lift is provided by a combination of the rotor and conventional wings. The gyrodyne is one of a number of similar concepts which attempt to combine helicopter-like low-speed performance with conventional fixed-wing high-speeds, including tiltrotors and tiltwings.

<span class="mw-page-title-main">Rotorcraft</span> Heavier-than-air aircraft which generates lift over rotating wings

A rotorcraft or rotary-wing aircraft is a heavier-than-air aircraft with rotary wings or rotor blades, which generate lift by rotating around a vertical mast. Several rotor blades mounted on a single mast are referred to as a rotor. The International Civil Aviation Organization (ICAO) defines a rotorcraft as "supported in flight by the reactions of the air on one or more rotors".

<span class="mw-page-title-main">Personal air vehicle</span> Type of aircraft

A personal air vehicle (PAV) is a proposed class of passenger aircraft providing on-demand air transport.

<span class="mw-page-title-main">Helicopter</span> Type of rotorcraft in which lift and thrust are supplied by horizontally-spinning rotors

A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of short take-off and landing (STOL) or short take-off and vertical landing (STOVL) aircraft cannot perform without a runway.

<span class="mw-page-title-main">Sikorsky X2</span> Experimental high-speed compound helicopter

The Sikorsky X2 is an experimental high-speed compound helicopter with coaxial rotors, developed by Sikorsky Aircraft, that made its first flight in 2008 and was officially retired in 2011.

<span class="mw-page-title-main">McDonnell XV-1</span> American experimental gyrodyne

The McDonnell XV-1 is an experimental Convertiplane developed by McDonnell Aircraft for a joint research program between the United States Air Force and the United States Army to explore technologies to develop an aircraft that could take off and land like a helicopter but fly at faster airspeeds, similar to a conventional airplane. The XV-1 would reach a speed of 200 mph, faster than any previous rotorcraft, but the program was terminated due to the tip-jet noise and complexity of the technology which gave only a modest gain in performance.

Carter Aviation Technologies is a privately held aviation research and development company based in Wichita Falls, Texas, United States.

<span class="mw-page-title-main">Slowed rotor</span> Helicopter design variant

The slowed rotor principle is used in the design of some helicopters. On a conventional helicopter the rotational speed of the rotor is constant; reducing it at lower flight speeds can reduce fuel consumption and enable the aircraft to fly more economically. In the compound helicopter and related aircraft configurations such as the gyrodyne and winged autogyro, reducing the rotational speed of the rotor and offloading part of its lift to a fixed wing reduces drag, enabling the aircraft to fly faster.

<span class="mw-page-title-main">Aerial Reconfigurable Embedded System</span> Roadable aircraft

The Aerial Reconfigurable Embedded System (ARES) was a concept for an unmanned VTOL flight module that can transport various payloads. The concept started as the TX (Transformer) in 2009 for a terrain-independent transportation system centered on a ground vehicle that could be configured into a VTOL air vehicle and carry four troops. ARES' primary function was the same as TX, to use flight to avoid ground-based transportation threats like ambushes and IEDs for units that don't have helicopters for those missions. It was to be powered by twin tilting ducted fans and have its own power system, fuel, digital flight controls, and remote command-and-control interfaces. The flight module would have different detachable mission modules for specific purposes including cargo delivery, CASEVAC, and ISR. Up to 3,000 lb (1,400 kg) of payload would be carried by a module.

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

A multirotor or multicopter is a rotorcraft with more than two lift-generating rotors. An advantage of multirotor aircraft is the simpler rotor mechanics required for flight control. Unlike single- and double-rotor helicopters which use complex variable pitch rotors whose pitch varies as the blade rotates for flight stability and control, multirotors often use fixed-pitch blades; control of vehicle motion is achieved by varying the relative speed of each rotor to change the thrust and torque produced by each.

Krossblade Aerospace Systems is an aviation company founded in 2014 in Phoenix Arizona, USA. The company is known for developing a 5-seat VTOL concept, SkyCruiser, hybrid vehicle for vertical take-off and landing, and for its drone/UAV prototype, named SkyProwler. Both aircraft employ the switchblade transformation mechanism to transform from a multirotor aircraft for vertical take-off and landing, to a pure winged aircraft, for rapid and efficient cruise.

References

Notes
  1. 1 2 Warwick, Graham. Carter flies VTOL hybrid Archived 8 March 2014 at the Wayback Machine Aviation Week , 26 January 2011. Retrieved 27 January 2011.
  2. 1 2 Guevarra, Daniel. Carter PAV Is Getting Plenty Of Attention At EAA AirVenture AvStop Online Magazine, 29 July 2009. Archived on 13 April 2015.
  3. 1 2 3 4 5 6 Archive 2010 Carter Aviation, 5 January 2010. Mirror Retrieved: 7 August 2010.
  4. ↑ "Archive 2006" Carter Aviation, 2 January 2006. Mirror. Retrieved: 7 August 2010. Quote: "For the past several months, Carter has been designing a new aircraft"
  5. ↑ "CarterCopter prototype in the works Archived 24 December 2014 at the Wayback Machine " Texomas, 20 December 2006. Retrieved: 26 January 2014.
  6. ↑ Carter 4-Place PAV Jane's Information Group Jane's All the World's Aircraft, 20 July 2010. Retrieved: 9 September 2010. Archive
  7. ↑ All archives Carter Aviation, 2003–2010. Mirror. Retrieved: 7 August 2010.
  8. 1 2 Textron Subsidiary To Develop Carter Rotor Technology Archived 22 August 2010 at the Wayback Machine AVweb, 18 November 2009. Retrieved: 1 May 2010.
  9. ↑ Page, Lewis VTOL gyro-copter flying car mates with killer robot The Register , 20 November 2009. Retrieved: 1 May 2010.
  10. 1 2 AAI Corporation (November 2009). "AAI and Carter Aviation Technologies Enter Exclusive Licensing Agreement for Slowed Rotor/Compound Technology". Archived from the original on 29 September 2011. Retrieved 10 February 2014.
  11. ↑ AAI Corporation via Reuters (November 2009). "AAI and Carter Aviation Technologies Enter Exclusive Licensing Agreement for Slowed Rotor/Compound Technology". Reuters . Archived from the original on 25 February 2014. Retrieved 20 February 2014.{{cite web}}: |last= has generic name (help)
  12. ↑ Team K-MAX demonstrates successful unmanned Helicopter Cargo resupply to U.S. Marine Corps Archived 4 November 2011 at the Wayback Machine , Lockheed Martin press release, 8 February 2010. Retrieved 14 March 2010.
  13. 1 2 Textron and Carter Aviation or Lockheed Martin might build DARPAs flying Hummer Archived 6 October 2011 at the Wayback Machine Next Big Future 29 August 2010. Retrieved 21 December 2010.
  14. ↑ Warwick, Graham. "Perseverance Pays Off for CarterCopter Archived 28 December 2013 at the Wayback Machine " Aviation Week , 20 November 2009. Retrieved: 9 January 2014.
  15. ↑ "Wichita Falls aviation company lands lucrative deal" Seven News, undated. Retrieved: 28 January 2014.
  16. ↑ Lombardi, Frank. "Q&A with Carter Aviation CEO Jay Carter" Rotor&Wing, 6 May 2014. Retrieved: 1 August 2014. Archived on 6 May 2014.
  17. 1 2 Trimble, Stephen (30 July 2014). "Carter reveals turbine plan, investor talks for VTOL prototype". FlightGlobal . Archived from the original on 30 July 2014. Retrieved 30 July 2014.
  18. ↑ "Carter Aviation Technologies Seeks Investors For PAV Prototype" Aero-News, 3 September 2014. Retrieved: 27 September 2014.
  19. 1 2 3 Moore, Jim. "Carter seeks factory" Aircraft Owners and Pilots Association , 21 May 2015. Retrieved: 16 July 2015. Archived on 22 May 2015.
  20. ↑ "Carter PAV Heads to Flight-testing" Mirror. Carter, 24 October 2010.
  21. 1 2 Wood, Janice. Carter PAV heads to flight testing General Aviation News, 25 October 2010. Retrieved: 15 November 2010. Archived on 7 January 2014.
  22. 1 2 3 4 Aircraft Completes First Phase Of Flight Testing KAUZ-TV NewsChannel 6, 26 January 2011. Retrieved 27 January 2011. Archived on 3 November 2013.
  23. ↑ You Say You Wanna Revolution? Carter Copter Tests New Rotor Aero-News, 6 April 2005. Retrieved 3 January 2011. Archived on 5 April 2012.
  24. ↑ Crosbie, Katie. Carter Aviation Technology announces new contract Texomas, 7 October 2010. Retrieved 3 January 2011. Archived on 2 October 2011.
  25. ↑ Wood, Janice. Carter PAV hits first milestone General Aviation News, 17 January 2011. Retrieved: 21 January 2011. Archived on 18 February 2014.
  26. ↑ Carter PAV Completes 1st Funding Milestone Flight Aero-News, 18 January 2011. Retrieved: 21 January 2011. Archived on 5 April 2012.
  27. ↑ Paur, Jason. New autogyro is an alternative to flying cars Archived 4 March 2014 at the Wayback Machine Wired , 21 January 2011. Retrieved 21 January 2011. Archived on 4 March 2014.
  28. ↑ ANN Special Feature: Carter PAV flight test update – 01.20.11 Aero-News, 20 January 2011. Retrieved 20 January 2011.
  29. 1 2 Guyot, Fareed. Carter Personal Air Vehicle completes Phase-One flight testing EAA Air Venture , 21 January 2011. Retrieved 21 January 2011.
  30. ↑ January Meeting Archived 28 May 2015 at the Wayback Machine page 9 Texas Rotorcraft Association, February 2012. Retrieved 12 February 2012.
  31. ↑ Shores, Gary et al. "Minutes of the Wichita Falls Economic Development Corporation" page 3, 21 June 2013. Wichita Falls Economic Development Corporation . Retrieved: 2 September 2012.
  32. ↑ Shores, Gary et al. ""Minutes of the Wichita Falls Economic Development Corporation" p2, 18 April 2012. Mirror, page 12 Wichita Falls Economic Development Corporation . Retrieved 20 July 2012.
  33. 1 2 Shores, Gary et al. "Minutes of the Wichita Falls Economic Development Corporation", 29 June 2012. Wichita Falls Economic Development Corporation . Retrieved: 29 November 2012.
  34. 1 2 "Carter Aviation Considered for Multi-Billion Dollar DOD Contact Archived 27 January 2014 at the Wayback Machine " Texomas, 24 January 2014. Retrieved: 26 January 2014.
  35. ↑ Shores, Gary et al. "Minutes of the Wichita Falls Economic Development Corporation" p1-3, 18 June 2012. Wichita Falls Economic Development Corporation . Retrieved: 20 July 2012.
  36. ↑ Shores, Gary et al. "Minutes of the Wichita Falls Economic Development Corporation" p2, 4 June 2012. Wichita Falls Economic Development Corporation . Retrieved: 26 November 2012.
  37. ↑ Shores, Gary & Carter, Jay. Resolution 132-2009 [ dead link ] mirror Archived 7 January 2014 at the Wayback Machine City of Wichita Falls, Texas , 6 October 2009. Retrieved: 4 January 2011.
  38. ↑ "Carter Signs $4 Million Incentive Agreement"
  39. ↑ "Carter Aviation Reaches Major Milestone" Carter via Helicopter Association International , 4 December 2013. Retrieved: 5 December 2013.
  40. ↑ "Carter Says Prototype Aircraft Beating Helicopter Efficiencies in Flight Tests". Aero-news Network. 21 November 2012. Retrieved 21 November 2012.
  41. ↑ "Carter prototype 2.5 times better lift-to-drag than helicopters". Carter press release. 20 November 2012. Retrieved 20 November 2012.
  42. ↑ Deener, Sarah. "Slowed rotor has high-speed implications" Aircraft Owners and Pilots Association , 13 November 2013. Retrieved: 11 November 2013. Archived on 28 May 2015.
  43. ↑ Tatro, Jon. "Carter Aviation repeats historic mark – breaking the MU-1 barrier Archived 11 November 2013 at the Wayback Machine " Carter, 8 November 2013. Retrieved: 11 November 2013.
  44. ↑ "Area company shows off new aircraft" Times Record News , 23 November 2013. Retrieved: 25 November 2013. Photo Archived 2 December 2013 at the Wayback Machine
  45. ↑ "Carter vehicle breaks records" Times Record News , 28 January 2014. Retrieved: 28 January 2014.
  46. ↑ O'dell, Bob. "January Meeting" page 7 Texas Rotorcraft Association, February 2014. Retrieved: 28 August 2014. Archived on 3 September 2014.
  47. ↑ Warwick, Graham. "Lockheed/Piasecki Team Tackles Cargo UAV" Aviation Week , 24 February 2014. Retrieved: 26 February 2014. Archived on 3 January 2015.
  48. 1 2 Federal Aviation Administration (2014). "FAA Registry – PAV2, N210AV". Archived from the original on 18 October 2014. Retrieved 30 July 2014.
  49. ↑ "N210AV" Flight Aware. Retrieved: 2 September 2013
  50. ↑ Grady, Mary. "Carter Shows Off VTOL Capabilities" AVweb, 8 April 2014. Retrieved: 10 April 2014. Archived on 13 April 2014.
  51. ↑ "Carter Copter soaring again" Times Record News , 24 September 2015. Retrieved: 29 September 2015. Archive
  52. ↑ Fisher, Mark. CarterCopter Technology Demonstrator, Pilot’s Operating Handbook X-Plane , 2002. Archived on 16 March 2012.
  53. ↑ Carter PAV 2+2 Mirror. Jane's all the world's aircraft , 25 November 2008. Retrieved: 9 September 2010. "Carter PAV 2+2 (United States) - Jane's All the World's Aircraft". Archived from the original on 2 September 2012. Retrieved 9 September 2010.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  54. 1 2 Carter PAV nearly complete AirPlanes, 7 August 2008. Retrieved 1 January 2011.
  55. 1 2 Plack, Paul. Carter Aviation Technologies announces development partners Aero-News, 1 August 2008. Retrieved 3 January 2011. Archived on 5 April 2012.
  56. ↑ Croucher, Phil. Professional helicopter pilot studies page 2-11. ISBN   978-0-9780269-0-5. Quote: [Rotor speed] "is constant in a helicopter".
  57. ↑ John M. Seddon, Simon Newman. Basic Helicopter Aerodynamics p216, John Wiley and Sons, 2011. Retrieved: 25 February 2012. ISBN   1-119-99410-1. Quote: The rotor is best served by rotating at a constant rotor speed
  58. ↑ Robert Beckhusen. "Army Dumps All-Seeing Chopper Drone" Wired 25 June 2012. Retrieved: 12 October 2013. Archived on 22 April 2015. Quote:The number of revolutions per minute is also set at a fixed rate
  59. ↑ The UH-60 permits 95–101% rotor RPM UH-60 limits Archived 18 August 2016 at the Wayback Machine US Army Aviation . Retrieved: 2 January 2010
  60. ↑ Trimble, Stephen (3 July 2008). "DARPA's Hummingbird unmanned helicopter comes of age". FlightGlobal. Archived from the original on 14 May 2014. Retrieved 14 May 2014. The rotor speed on a typical helicopter can be varied around 95–102%
  61. 1 2 3 4 Moore, Jim. "Carter seeks factory" Aircraft Owners and Pilots Association , 21 May 2015. Retrieved: 28 May 2014. Archived on 22 May 2015.
  62. ↑ Sinclair, Edward J. (24 March 2005), The Army Aviator's Handbook for Maneuvering Flight and Power Management (PDF), United States Army Aviation Branch, p. 20, archived from the original (PDF) on 17 July 2011, retrieved 6 January 2011
  63. ↑ Marker, Doug. Doing Vertical Take-offs and Landings with an Unpowered Rotor Archived 13 July 2011 at the Wayback Machine 2 November 1999.
  64. 1 2 NASA goals 1A+B Mirror. Carter Aviation, 24 March 1999. Retrieved 25 September 2011.
  65. ↑ Carter, Jay Jr. Q-&-A Audio Archived 28 July 2011 at the Wayback Machine at 16m. Popular Rotorcraft Association , 16 February 2010. Retrieved 21 January 2010
  66. ↑ Carter, Jay Jr. Webinar Archived 28 July 2011 at the Wayback Machine at 7m35s and 29m20s. Popular Rotorcraft Association , 16 February 2010. Retrieved 21 January 2010
  67. 1 2 Page, Lewis. 'Personal Air Vehicle' VTOL jump-copter in key flight test, The Register , 24 January 2011. Retrieved 24 January 2011.
  68. ↑ "What slump? Oshkosh gathering shows GA on an upswing" Composites World, 4 August 2014. Retrieved: 5 August 2014. Archive
  69. ↑ "Carter Personal Air Vehicle completes first flights with new rotor Archived 25 November 2013 at the Wayback Machine " Carter Aviation, 29 August 2013. Retrieved: 2 September 2013.
  70. ↑ "Testimonials". Archived on 4 May 2012.
  71. ↑ "What a Concept! Archived 23 October 2014 at the Wayback Machine " Aerospace manufacturing engineer, 26 May 2010. Retrieved: 18 October 2014.
  72. ↑ Carter autogyro revealed Archived 6 July 2011 at the Wayback Machine Loop, 27 July 2009.
  73. 1 2 Warwick, Graham. "VIDEO: Carter's Hybrid VTOL Flying Archived 10 March 2014 at the Wayback Machine " Aviation Week , 31 January 2011. Retrieved: 9 March 2014.
  74. ↑ Interview with Jay Carter at Oshkosh 2009 (1m0s) Aero-TV, 27 July 2009. Retrieved 5 January 2011.
  75. ↑ Warwick, Graham. Compound Concept Aviation Week , 28 February 2011. Retrieved 1 March 2012. Paper edition or paywall
  76. ↑ Jane's All the World's Aircraft. 2004.
  77. 1 2 "2+2 Place Personal Air Vehicle & UAV Archived 1 August 2009 at the Wayback Machine " Carter Aviation. Retrieved: 2 September 2013.
  78. ↑ Federal Aviation Administration (March 2012). "FAA Registry N110AV – Name Inquiry Results". Archived from the original on 2 February 2014. Retrieved 30 March 2012.
  79. 1 2 Registration data for N110AV FlightAware. Retrieved: 9 September 2010.
Bibliography
External videos
Nuvola apps kaboodle.svg Close-up of Olney test flight
Nuvola apps kaboodle.svg Official video of flight tests, no wings
Nuvola apps kaboodle.svg Official video of flight tests, with wings
Nuvola apps kaboodle.svg PAV jump take-off with wings
Nuvola apps kaboodle.svg PAV jump take-off, and slowed rotor at 112rpm on YouTube
External images
Searchtool.svg PAV at EAA AirVenture Oshkosh
Searchtool.svg PAV on display at Oshkosh 2010
Searchtool.svg PAV with wings Archive
Searchtool.svg PAV "hop" Archive
Searchtool.svg PAV cockpit [ dead link ]
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.