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Why does an an aircraft require less runway length for take off during winter?
Wiki User
∙ 15y ago
Airplanes fly by virtue of two basic ideas: kite effect and Bernoulli's principle. With the thrust of the engine pushing the craft forward, air moving over the upper curved surface of the wing has less pressure than the air moving along under the wing. Higher air pressure on the bottom of the wing and lower air pressure on the top creates lift. Thanks, Bernoulli. When the wing is tilted up a little bit with the craft moving forward, air pushes against the bottom of a wing like air pushes against the bottom surface of a kite, and this forces the craft up. Kite effect. Now to the question of take offs in winter. The key is that the air is colder in winter and is more dense. This means that it provides more lift than air that is warmer and less dense. All other conditions being equal, winter air is better for takeoffs than summer air. There's more effect on the control surfaces, too! Sweet! Flying in summer when it's really hot is like flying at higher altitudes because as we all know, the air is thinner up there! This is a question that speaks to the physical effect we call air density. Wikipedia has a nice article, and a link is provided.
Wiki User
∙ 15y ago
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What unit would you use to measure the length of an airport runway?
Metres
Do commercial aircraft have Geographical Position Systems?
Yes they do, or they wouldn't be albe to navavigate so successfully. Yes, all modern aircraft with on-board computers use GPS to plot courses. They have a Multi-Mode Reciever on board to receive the GPS data. Two new items under developement is plotting the aircraft on the runway using GPS coordinates. The pilot and Air Traffic Controller will have a display of the airport and runways and position of your a/c and other aircraft. Another item is Satellite Tracking of aircraft as opposed to tracking using ground-based radar. This plan would make the radar obsolete. All aircraft positions would be reported by GPS and plotted on a display that collects the data from all aircraft. Custermen Reference Links: FAA site on Global Navigation Satellite Systemshttp://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/
Pick the correct statement?
Runway numbers represent the orientation of the runway approach in compass degrees rounded to the nearest ten degrees.
When With a reported wind of south at 20 knots which runway (10 14 or 24) is appropriate for an airplane with a 13-knot maximum crosswind component?
Runway 14.
What is the planet that features the runway greenhouse effect?
Venus
What types of aircrAft require no runway?
Helicopters, a Harrier Jet
During an aircraft emergency on the runway what vehicles have permission to cross the runway without?
None of the above
What are the characteristics of swept wing?
Swept wings are preferred in supersonic aircraft to facilitate vertical take off and reduce runway length during take off.
During an aircraft emergency on the runway which of the following vehicles have permissions to cross the runway without contacting?
none of the above
During an aircraft emergency on the runway what vehicles have permission to cross?
None
How does the wing of an aircraft and runway length related. if we reduce the wing size of any Airbus or Boeing and increase the runway length then what will happen?
If you reduce wing size the aircraft will take longer distance and will have to attain higher ground speed before lift-off.
Does F-16 Fighting Falcon need a runway?
Yes, the F-16 is not a STOVL (short take-off vertical landing) aircraft. Not sure about the length of the runway, but it probably varies with the take-off weight of the aircraft. But the F-16 definitely needs a runway.
An airplane has a takeoff speed of 80ms which it reaches 35s after starting from rest what is the minimum length of the runway?
Assuming it as passenger aircraft and take-off speed = lift off speedwe have minimum runway length required as 80*35 = 2.8kmIf it is a military aircraft the length will reduce further to minimum unstick speed
Flaps position during take off?
it depends on what type of aircraft your flying, the runway length, and the weather. here are two common aircraft flap settings for standard takeoff use: Boeing 737: set flaps to 5 cessna 172: set flaps to 10 these are two common flap settings for the Boeing 737 and cessna 172. remember, different aircraft have differnet flap settings based on weather and runway length.
What is the requird runway length for Boeing 747?
The required runway length depends on the payload and, the fuel on board the aircraft. If your looking at relatively full payload and, maximum weight on board you can see some 747's using full length runway departures which can be over 12,000 feet. So there really is not a required runway length till you get specific with payload and, fuel on board.
Is there a standard that specifies how long must the runway at the airport so that it can land any aircraft?
No, not really. The only real way a airport could land any aircraft would be to have a 4 mile or longer runway. However, the problem for most aircraft is not as much landing as much as taking off, which could require a 30% longer runway.
How much land will Heathrow require for their new runway?
The runway would require relatively little, because it would be a short runway for regional aircraft - but the buildings, roads etcetera would requre the demolition of three villages to the north of LHR and the forced relocation of numerous businesses.
