At what speed is the airplane most efficient best speed?
Simply add the strength of the headwind (30 mph) to your best glide speed (78 mph) and you've got the most efficient speed to fly—here, 108 mph. To determine an airplane's Carson speed, multiply its best glide speed by 1.32.
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Technically this is the so-called 'stall speed', where air passes over the wings fast enough to sustain altitude, and for small planes this can be less than 50km/h (31mph). But at such low speeds, the aircraft is easily destabilised, and could fail to leave the runway.
Former Qantas Captain, Trevor Aldous, explains the time of day has some influence on low level turbulence, with early morning generally better. “Due to mechanical mixing of hot air rising, once you're above 10,000 feet, turbulence is produced from mountain waves and as you go higher, jet streams become predominant.
When an airplane experiences less drag, it consumes less fuel. This relationship between speed and fuel consumption means that flying at a slightly slower speed can result in significant fuel savings for airlines, which in turn can lower operating costs and potentially reduce ticket prices for passengers.
With this in mind, horizontal winds (also known as “crosswinds”) in excess of 30-35 kts (about 34-40 mph) are generally prohibitive of take-off and landing.
The Significance of Speed in respect of the decision to reject a take off. Most aircraft manufacturers specify an airspeed - usually 80 knots or 100 knots - which defines the transition between the low speed and the high speed part of a takeoff roll and represents a change in the expected use of a stop call.
If you haven't reached 70% of your takeoff speed by the time you've reached 50% of the length of the runway, you should abort your takeoff. You should always use your takeoff performance charts to make sure you have enough runway for a safe takeoff.
To minimize fuel consumption, an aircraft should cruise close to the maximum altitude at which it can generate sufficient lift to maintain its altitude. As the aircraft's weight decreases throughout the flight, due to fuel burn, its optimum cruising altitude increases.
While fuel dumps don't happen every day, they're also not uncommon. Nor do they usually represent a major emergency. In fact if an aircraft is taking the time to dump fuel before landing, that's likely an indication that the issue forcing the plane to land is serious but not critical.
Airlines find that fuel dumping can actually be cheaper than not dumping in certain circumstances. But it's not something pilots do on a routine basis. We spoke with Alison Duquette, spokesperson for the Federal Aviation Administration (FAA), who assured us that it doesn't happen very often.
Winter and summer are the most turbulent months to fly. During winter, there are strong winds and blizzards. During the peak of summer when it is very hot, convection turbulence occurs, especially when flying over cities and mountains during midday.
DENVER (CBS4) – Colorado and the Rocky Mountains are among the worst areas for turbulence in the United States. It's a problem that injures dozens of passengers and crew members nationwide every year.
Delta Air Lines claims it has less turbulence than the competition. In 2016, Delta Air Lines launched a Flight Weather Viewer app that gives its pilots a greater understanding of the weather they encounter around the world.
Number 1: North American X-15 This aircraft has the current world record for the fastest manned aircraft. Its maximum speed was Mach 6.70 (about 7,200 km/h) which it attained on the 3rd of October 1967 thanks to its pilot William J. “Pete” Knight.