Application of Advanced Technologies to Very Large Subsonic Transports

Bartlett, D. W.; Mcgraw, Marvin E.; Arcara, Philip C.; Geiselhart, Karl

doi:10.4271/921938

“…The V1000 was identical to the V800 configuration with the exception that two 22.5 ft. plugs were added forward and aft of the wing/fuselage juncture. The sized aircraft were compared to the work performed by Bartlett, et. al., 12 and were confirmed within an error less than 1% for all output parameters, e.g. take-off gross weight, operating empty weight, mission fuel, etc.…”

Section: Development Of Aircraft Configurationsmentioning

confidence: 52%

“…Baseline VLT configurations are based on work performed by Dennis Bartlett, et. al., at NASA Langley Research Center 12 . There are three baseline configurations (600, 800, and 1000 passengers) with various levels of technology depicted in Table I.…”

Section: Development Of Aircraft Configurationsmentioning

confidence: 99%

“…The potential markets for the VLT can be divided into two major divisions based on aircraft function: long range and regional. The long range operations are primarily inter-continental and the regional operations would include such city pairs as Narita and Haneda in Japan 12 . A study of the most likely city pairs for the VLT within these markets was performed.…”

Section: Figure 8: Total Program Costsmentioning

confidence: 99%

See 1 more Smart Citation

Preliminary Assessment of the Economic Viability of a Family of Very Large Transport Configurations

Mavris¹,

Kirby²

1996

SAE Technical Paper Series

View full text Add to dashboard Cite

A family of Very Large Transport (VLT) concepts were studied as an implementation of the affordability aspects of the Robust Design Simulation (RDS) methodology which is based on the Integrated Product and Process Development (IPPD) initiative that is sweeping through industry. The VLT is envisioned to be a high capacity (600 to 1000 passengers), long range (~7500 nm), subsonic transport. Various configurations with different levels of technology were compared, based on affordability issues, to a Boeing 747-400 which is a current high capacity, long range transport. The varying technology levels prompted a need for an integration of a sizing/synthesis (FLOPS) code with an economics package (ALCCA). The integration enables a direct evaluation of the added technology on a configuration economic viability. The determination of the viability was based on the assessment of the following evaluation criteria: average yield per Revenue Passenger Mile ($/RPM), Total Operating Cost per day (TOC), acquisition cost, airframe manufacturer's cash flow, and airline's return on investment. The assessment of these criteria was performed through the application of several statistical techniques such as Response Surface Methodology (RSM), Design of Experiments (DoE), and Monte Carlo Simulations. The result is a series of second-order equations that model the evaluation criteria above stated. The final conclusion of this analysis is that the 800 passenger configuration would meet most of the market demand (600 to 1600 passengers) of 250 city pairs considered. This paper reviews the RDS methodology and how it was applied to determine the economic viability of a VLT concept. In addition, it documents the results of the method used to determine the economic viability of a family of VLT configurations and the most affordable VLT configuration for a specified market demand.

show abstract

“…Based on AirbusÕ market studies [7], NASA Langley studies [8], and current long-range commercial transport data, a VLT mission profile would resemble that depicted in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Demonstration of a Probabilistic Technique for the Determination of Aircraft Economic Viability

Mavris¹,

Mantis²,

Kirby³

1997

SAE Technical Paper Series

View full text Add to dashboard Cite

Over the past few years, modern aircraft design has experienced a paradigm shift from designing for performance to designing for affordability. This paper contains a probabilistic approach that will allow traditional deterministic design methods to be extended to account for disciplinary, economic, and technological uncertainty. The probabilistic approach was facilitated by the Fast Probability Integration (FPI) technique; a technique which allows the designer to gather valuable information about the vehicleÕs behavior in the design space. This technique is efficient for assessing multi-attribute, multiconstraint problems in a more realistic fashion. For implementation purposes, this technique is applied to illustrate how both economic and technological uncertainty associated with a Very Large Transport aircraft may be assessed. The assessment is evaluated with the FPI technique to determine the cumulative probability distributions of the design space, as bound by economic objectives and performance constraints. These distributions were compared to established targets for a comparable large capacity aircraft, similar in size to the Boeing 747-400. The conventional baseline configuration design space was determined to be marginally feasible and non-viable, motivating the infusion of advanced technologies, including laminar flow control, advanced materials, and advances in propulsion technology as to reflect 2005 entry into service. The resulting system benefits and penalties were qualitatively assessed with technology metric ÒkÓ factors. The infusion of technologies shifted the VLT design into regions of greater feasibility and viability. The study also demonstrated a method and relationship by which the impact of new technologies may be assessed in a more system focused approach. The impact of technology readiness and its associated risk was also addressed in this study and is not presented here.

show abstract

“…The economic viability assessment of this study was intended to identify the appropriate-sized vehicle for given markets, subject to economic uncertainty for fixed design parameters. Furthermore, the viability assessment of that study was based on the point design solutions obtained in Reference [8]. These point designs were subjected to economic uncertainty to quantify economic viability for that point solution.…”

Section: Introductionmentioning

confidence: 99%

Demonstration of a probabilistic technique for the determination of aircraft economic viability

Mavris

¹

,

Mantis

²

,

Kirby

³

1997

1997 World Aviation Congress

View full text Add to dashboard Cite

Over the past few years, modern aircraft design has experienced a paradigm shift from designing for performance to designing for affordability. This paper contains a probabilistic approach that will allow traditional deterministic design methods to be extended to account for disciplinary, economic, and technological uncertainty. The probabilistic approach was facilitated by the Fast Probability Integration (FPI) technique; a technique which allows the designer to gather valuable information about the vehicleÕs behavior in the design space. This technique is efficient for assessing multi-attribute, multiconstraint problems in a more realistic fashion. For implementation purposes, this technique is applied to illustrate how both economic and technological uncertainty associated with a Very Large Transport aircraft may be assessed. The assessment is evaluated with the FPI technique to determine the cumulative probability distributions of the design space, as bound by economic objectives and performance constraints. These distributions were compared to established targets for a comparable large capacity aircraft, similar in size to the Boeing 747-400. The conventional baseline configuration design space was determined to be marginally feasible and non-viable, motivating the infusion of advanced technologies, including laminar flow control, advanced materials, and advances in propulsion technology as to reflect 2005 entry into service. The resulting system benefits and penalties were qualitatively assessed with technology metric ÒkÓ factors. The infusion of technologies shifted the VLT design into regions of greater feasibility and viability. The study also demonstrated a method and relationship by which the impact of new technologies may be assessed in a more system focused approach. The impact of technology readiness and its associated risk was also addressed in this study and is not presented here.

show abstract

Application of Advanced Technologies to Very Large Subsonic Transports

Cited by 3 publications

References 2 publications

Preliminary Assessment of the Economic Viability of a Family of Very Large Transport Configurations

Preliminary Assessment of the Economic Viability of a Family of Very Large Transport Configurations

Demonstration of a Probabilistic Technique for the Determination of Aircraft Economic Viability

Demonstration of a probabilistic technique for the determination of aircraft economic viability

Contact Info

Product

Resources

About