A Potential Impact Analysis of ESTOL Aircraft on Newark Airport Operations

Couluris, George J; Hange, Craig; Wardwell, Douglas A.; Signor, David B.; Phillips, James E.

doi:10.2514/6.2007-6700

Cited by 12 publications

(6 citation statements)

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“…Significant focus was invested on improving the lift of rotor blades with elliptical sections amid development of the X-Wing CC concept in the early 1980s (12) . More recently, with concerns over aircraft efficiency and environmental impacts, CC has been studied to improve the lifting capabilities of fixed-wing aircraft while keeping within the capabilities of existing airport infrastructures (13) . On fixed-wing unmanned air vehicles, it has been shown in subsonic flight that CC has the potential to replace moving parts for manoeuvrability control (14) .…”

Section: Review Of Related Workmentioning

confidence: 99%

Design study of Coanda devices for transonic circulation control

Forster

Steijl

2017

Aeronaut. j.

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Circulation control via blowing over Coanda surfaces at transonic freestream Mach numbers is investigated using numerical simulations. The performance and sensitivity of several circulation control devices applied to a supercritical aerofoil are assessed. Different Coanda devices were studied to assess the effect of Coanda radius-to-slot height ratio, nozzle shape and Coanda surfaces with a step. The range of operating conditions for which a supersonic Coanda jet remained attached at transonic freestream conditions were extended by increasing the radius of curvature at the slot exit for Coanda devices with a converging nozzle. Additional improvements were found by reducing the strength of shock boundary-layer interactions on the Coanda surface by expanding the jet flow using a converging-diverging nozzle and also by introducing a step between the Coanda surface and the nozzle exit. The performance when using a converging-diverging nozzle can be matched using a simple stepped Coanda device. It is shown that circulation control has the potential to match the performance of traditional control surfaces during regimes of attached flow at transonic speeds, up to an equivalent aileron deflection angle of 10°. In addition, lift augmentation ratios ΔCl/Cμof over 100 were achieved.

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Section: Review Of Related Workmentioning

confidence: 99%

Design study of Coanda devices for transonic circulation control

Forster

Steijl

2017

Aeronaut. j.

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“…Field length requirement is a unique operational capability in that a diversity in requirements may be advantageous to system-level efficiency, particularly if an aircraft is able to operate in and out of short field lengths. Operation from short field lengths can either allow the use of unused or underutlized runways at major airports 38 or exploit the metroplex concept of expanding air service to non-hub airports. This allows aircraft with short field length requirements to be sequenced in and out of an airport separately from the remaining air traffic.…”

Section: Ivb1 Maneuvering Performancementioning

confidence: 99%

Next Generation Civil Transport Aircraft Design Considerations for Improving Vehicle and System-Level Efficiency

Acosta

Guynn

Wahls

et al. 2013

2013 Aviation Technology, Integration, and Operations Conference

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The future of aviation will benefit from research in aircraft design and air transportation management aimed at improving efficiency and reducing environmental impacts. This paper presents civil transport aircraft design trends and opportunities for improving vehicle and system-level efficiency. Aircraft design concepts and the emerging technologies critical to reducing thrust specific fuel consumption, reducing weight, and increasing lift to drag ratio currently being developed by NASA are discussed. Advancements in the air transportation system aimed towards system-level efficiency are discussed as well. Finally, the paper describes the relationship between the air transportation system, aircraft, and efficiency. This relationship is characterized by operational constraints imposed by the air transportation system that influence aircraft design, and operational capabilities inherent to an aircraft design that impact the air transportation system.

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“…A recent study of NASA revealed, that the available turboprop runways at hub-airports in the US are underutilised, because passengers prefer the smooth jet cruise to turboprop aircraft (19) and presume jets to be safer. Capacity simulations of Newark airport have shown, that if ESTOL jets would operate on the short turboprop runway, the airport capacity would increase (16% more take-offs and 38% more landings), although the turboprop runway is intersecting the two main runways (20) . Following this idea, we have listed the biggest US airports with their shortest runway and their altitude in Table 1.…”

Section: Use Of Underutilised and Unused Runwaysmentioning

confidence: 99%

Extreme short take–off and landing regional jets – economic motivation and technological challenges

Gologan¹,

Kelders

Kuhlmann

et al. 2009

Aeronaut. j.

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In their latest market forecasts Airbus and Boeing equally predict that this strong increase in demand translates into a market value of about 3·2 trillion Dollars in the next 20 years. Given their different strategic approach (A380 vs B787), Airbus assumes a delivery of 23,385 new aircraft and Boeing a slightly higher number of 29,000 aircraft. These numbers certainly were not corrected for the effects of the current crisis. However, as long as the current state of the economy is seen as a business cycle phenomenon, these numbers still give a good indication about future markets † .Whereas in the last decades the aircraft market was mainly a seller's market, circumstances have changed in the last years. Buyers of aircraft have put much more emphasis on bringing their own needs and desires into the development process ‡ . This has lead to a greater need for aircraft customisation especially in the long range segment, which Airbus and Boeing have already well addressed. A similar approach is yet to be followed for smaller aircraft, the A320 family and B737 predecessors in particular.Both factors -the strong increase in demand and the need for more customisation -offer new opportunities and new challenges to the market. Firstly, the prospects of the high market value haveamong other factors -attracted new competitors into the market, challenging the incumbents especially in the regional jet/single aisle market. Secondly, the parallel segmentation of the airline business models has lead to different customer needs, representing different requirements for the respective aircraft. A new short range aircraft for the Asian market might well look totally different to a European one in terms of cabin size, layout and flexibility as well as aircraft ABSTRACT A predominant problem in the US as well as in Europe is the imminent capacity shortage of major hub airports: Air traffic is assumed to increase significantly worldwide, while further runway extensions of airports are difficult because of residents' resistance and limited land space availability. However, the increasing market size also provides a potential for new aircraft concepts. What type of aircraft will meet best the future market requirements is a question arising.We show that currently discussed solutions to airport capacity problems are mostly not in line with market requirements and have therefore not the potential to alleviate the increasing capacity problems. We analyse to what extend an aeroplane with extreme short takeoff and landing (ESTOL) capability might be able to overcome these capacity problems and discuss resulting technical requirements. Subsequently we present some of the current technological challenges in this area of research and give an overview on ESTOL regional jet concepts that are currently investigated at Bauhaus Luftfahrt.

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A Potential Impact Analysis of ESTOL Aircraft on Newark Airport Operations

Cited by 12 publications

References 0 publications

Design study of Coanda devices for transonic circulation control

Design study of Coanda devices for transonic circulation control

Next Generation Civil Transport Aircraft Design Considerations for Improving Vehicle and System-Level Efficiency

Extreme short take–off and landing regional jets – economic motivation and technological challenges

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