scholarly journals Countdown to Launch in Houston

2014 ◽  
Vol 136 (01) ◽  
pp. 38-39
Author(s):  
Bridget Mintz Testa
Keyword(s):  
Federal Aviation Administration ◽  
Assistant Director ◽  
Lift Off ◽  
Landing Spot

This article presents an overview of the plan of the upcoming spaceport in Houston. The planned spaceport in Houston is designed to support vehicles that lift off and land horizontally, like conventional aircraft. Future expansion could see the construction of a passenger terminal. Instead of rockets, the plan is for the spaceport to be the take-off and landing spot for horizontally launched suborbital vehicles, such as Virgin Galactic’s SpaceShipTwo and XCOR’s Lynx. Horizontally launched vehicles have many advantages, according to Sirisha Bandla, assistant director of the Commercial Spaceflight Federation. The XCOR Lynx is a Concept X vehicle that can take off and land up to four times in one day. The industry wants to reduce that time to 12 to 18 months, including the six months it takes the Federal Aviation Administration to review an application.

scholarly journals Problems of an Aerodynamic Interference between Helicopter Rotor Slipstream and an Elevated Heliport

2019 ◽  
Vol 26 (3) ◽  
pp. 189-196
Author(s):  
Paweł Ruchała ◽  
Kamila Grabowska
Keyword(s):  
Ground Level ◽  
Federal Aviation Administration ◽  
Helicopter Rotor ◽  
Existing Buildings ◽  
Windy Weather ◽  
Aerodynamic Interference ◽  
Lift Off ◽  
Account Due ◽  
Sudden Decrease ◽  
Elevated Structure

Abstract An elevated heliport, as it has been defined by FAA (Federal Aviation Administration), is a heliport located on a rooftop or other elevated structure where the TLOF (touchdown and lift-off area) is at least 30 inches (76 cm) above the surrounding surface [1]. One of greatest advantages of such heliports is that they require less free space, which eases its build nearby existing buildings – especially in densely built-up areas. However, design of such heliports is more complicated, than ground level ones, while one must include an aerodynamic impact of the building below the elevated heliport and surrounding buildings. The aerodynamic interference between the helicopter and the buildings may result with decline of flight safety, due to sudden decrease of thrust (when flying above the edge of building) or because of increased turbulence in windy weather, wake behind surrounding buildings causing sudden gusts etc. Moreover, oscillations of pressure caused by helicopter rotor influence on the building structure also must be taken into account due to increased wear of upper part of the building or devices mounted on its roof (for example, elevator drives). These oscillation may also cause vibrations of building’s structure, which is especially important in case of medical heliports – which are a vast majority of elevated heliports (and heliports in general) – because of strict requirements for acceptable vibration level. The article is aimed on summarize aerodynamic issues, which should be taken into account during design of elevated heliport.

Dual solar satellites ready for lift-off

Nature ◽  
2006 ◽  
Author(s):  
Geoff Brumfiel
Keyword(s):  
Lift Off

Indian lift-off a let-down

Nature ◽  
2006 ◽  
Author(s):  
Killugudi Jayaraman
Keyword(s):  
Lift Off

A Performative Memoric Investigation of YoungGiftedandFat

2016 ◽  
Vol 5 (1) ◽  
pp. 51-62
Author(s):  
Sharrell D. Luckett ◽  
Audrey Edwards ◽  
Megan J. Stewart
Keyword(s):  
African American ◽  
Performance Studies ◽  
African American Females ◽  
Stage Manager ◽  
The Arts ◽  
Assistant Director ◽  
Power Negotiations ◽  
Research Collective

In 2013, Sharrell D. Luckett formed the Performance Studies & Arts Research Collective, which encourages members to explore their identities through the arts. Around this time, Audrey Edwards and Megan J. Stewart—both African American females and Collective members—became interested in autoethnography, and Luckett invited them to study closely with her. In this performative essay, Luckett, Edwards, and Stewart implicitly highlight various power negotiations enacted as professor/student, actress/stage manager, actress/assistant director, and mentor/mentee, while all working on their own autoethnographies, and while working collectively on Luckett's autoethnographic performance: YoungGiftedandFat.

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