In aircraft not designed to fly at the Critical Mach number, shock waves in the flow over the wing and tailplane were sufficient to stall the wing, make control surfaces ineffective or lead to loss of control such asMach tuck. The phenomena associated with problems at the Critical Mach numbe...
Boeing 777: full length, 63.7 m; full width, 60.9m; passenger capacity, 389 persons; engine thrust 34,900 kg × 2 and cruising speed of 1028 km/h (M = 0.82). InertiaforceElasticforce=FIFE=ρv2L2KL2=v2K/ρ=v2a2 Again in this case, the square root is selected to be defined as ...
提交时间:9 年以前 The Skreemr supersonic jet concept could be the passenger airliner of the future, making the Atlantic seem more like a lake than an ocean. If this wild creation ever gets off the drawing board, that is. (www.popularmechanics.com)更多... ...
Concorde had the throttles set to 100% dry power on take-off and left them there. Reheat (afterburner) was used for 90 seconds on take-off and then for a short while between Mach 0.95 and 1.5. Then off again. The Aérospatiale/BAC Concorde was a ...
"It is the same as taking a plane. We may feel a little uncomfortable when the plane is speeding up, but not during the flight. How our body reacts depends on acceleration, not the speed itself," said Mao.
for the return to Oruro. Fortunately the imminent departure of the railcar to Potosi meant that the ticket window was manned. A 1967 Ferrostaal (Essen, Germany) built railcar, number 337 was scheduled to work the 10am Uyuni - Potosi service. At this point in time it had one passenger. ...
The first aircraft to fly at supersonic speeds was aBell X-1rocket-powered research plane piloted by MajorCharles E. Yeagerof the U.S. Air Force on October 14, 1947. After being dropped from the belly of a Boeing B-29mother ship, the XS-1 broke the (local)sound barrierat 1,066 km...
The top speed of Concorde, one of only two supersonic passenger planes to have flown commercially, was Mach 2.04 (1,350 mph). The proposed Hermeus passenger aircraft, therefore, would beat the current record for the fastest air-breathing plane by a large margin, and by flying for an extend...
1. Introduction JAXA is investigating a design approach to a Mach 5 hypersonic passenger aircraft [1] (Figure 1), which could significantly reduce the flight time for intercontinental travel. The X-43A [2] flight experiment successfully demonstrated hypersonic flight with a scramjet engine. The fol...
𝑡𝑎𝑛(𝛾)=𝑇𝑊−1(𝐿/𝐷)tan(γ)=TW−1(L/D) Increasing the lift-to-drag ratio (𝐿𝐷LD) by local flow control would make it possible to reduce the installed thrust (use smaller engines) or to increase the maximum take-off weight (realize higher passenger capacity)...