Objective: To analyze the psychophysiological response during takeoff, landing, air-air attack and air-ground maneuvers. Methods: A total of 11 expert pilots (age=33.36 (5.37)) from Spanish Air Force participated in this cross-sectional study. Participants had to complete a flight simulator following missions: 1) takeoff; 2) Air-air attack; 3) Air-Ground attack, 4) Landing. The electroencephalo...

The early phase of IT diffusion plays a critical role. Takeoff involving rapid growth of an IT is an acid test for whether the technology will succeed. We develop a new theory to understand global takeoff for digital wireless phones and technologies with related characteristics. We construct a multi-theoretical model that consists of standards, market competition, technology cost, and technolog...

T authors study the takeoff of 16 new products across 31 countries (430 categories) to analyze how and why takeoff varies across products and countries. They test the effect of 12 hypothesized drivers of takeoff using a parametric hazard model. The authors find that the average time to takeoff varies substantially between developed and developing countries, between work and fun products, across...

iii Nomenclature h altitude, ft ˙ h vertical velocity, ft/sec K fnt scale factor for lift from jet-induced fountain p roll rate, deg/sec q pitch rate, deg/sec r yaw rate, deg/sec T CN cruise nozzle thrust, lb T LF lift-fan thrust, lb T LN lift-nozzle thrust, lb T R rise time, sec V airspeed, knots V ej equivalent jet velocity ratio V x ground speed, ft/sec V y lateral velocity, ft/sec β sidesli...

Electronic bid documents are available from a variety of sources. Historically, contractors have printed the electronic documents and then performed their takeoffs. Takeoff viewers are now available that allow the contractor to perform their takeoffs directly from the electronic documents. Several software companies that produce takeoff viewers are listed and features of takeoff viewers are des...

Emissions inventory calculations for airports, using standard emissions inventory reporting methods, are inflated due an assumption of use of maximum takeoff thrust. To enhance the operational life of jet engines and reduce fuel burn, airlines frequently use reduced thrust (i.e. Derated or Flex Temperature thrust) for the takeoff procedure. Without access to internal airline “load sheet” paperw...

The effect of skis on the force-time characteristics of the simulated ski jumping takeoff was examined in a wind tunnel. Takeoff forces were recorded with a force plate installed under the tunnel floor. Signals from the front and rear parts of the force plate were collected separately to examine the anteroposterior balance of the jumpers during the takeoff. Two ski jumpers performed simulated t...