A model is presented that combines experimental data on the relationship between approach velocity and takeoff angle with a five-parameter model to approximate environmental effects on approach velocity and in-flight travel. Results indicate that wind speed provides the greatest influence on jump distance, followed by air density which itself is a product of altitude, temperature, air pressure,...

In this paper, the maximum take-off mass (MTOM) of a 19-seat fuel cell aircraft with similar characteristics to conventional is estimated using combination rapid method and semi-empirical equations. The study shows that MTOM current technology would be 25% greater than aircraft. However, expected technological improvements, could reach lower values most important parameter affecting power-to-we...

The Takeoff Weight (TOW) of an aircraft is an important aspect of aircraft performance, and impacts a large number of characteristics, ranging from the trajectory to the fuel burn of the flight. Due to its dependence on factors such as the passenger and cargo load factors as well as operating strategies, the TOW of a particular flight is generally not available to entities outside of the operat...

The dynamics of ultrasonic vibration drills having the common source of rotational and reciprocal movement of the driven element has been examined. The method, the mathematical model and the specific software for the calculation of the dynamic characteristics of the drills have been developed, with regard to the power limitation of the source, namely the rod ultrasonic vibrating system. The loa...

With global warming, extreme high temperatures become more frequent and are an important factor affecting aircrafts’ takeoff performance. Using Community Earth System Model version 1 (CESM1) Boeing Performance Software (BPS), the influence of increasing temperature on maximum weight (MTOW) distance is evaluated quantitatively in this study. The results show that distribution summer daily shifts...