[permalink] [id link]
The glide ratio of paragliders ranges from 8. 8 for recreational wings, to about 11. 0 for modern competition models.
from
Wikipedia
Some Related Sentences
glide and ratio
To have the maximum range and therefore the largest choice of possible landing sites, he needed to fly the 767 at the " best glide ratio speed ".
A higher or more favorable L / D ratio is typically one of the major goals in aircraft design ; since a particular aircraft's required lift is set by its weight, delivering that lift with lower drag leads directly to better fuel economy, climb performance, and glide ratio.
As it turns out, the glide ratio, which is the ratio of an ( unpowered ) aircraft's forward motion to its descent, is ( when flown at constant speed ) numerically equal to the aircraft's L / D.
To achieve high speed across country, glider pilots anticipating strong thermals often load their gliders ( sailplanes ) with water ballast: the increased wing loading means optimum glide ratio at higher airspeed, but at the cost of climbing more slowly in thermals.
These improved the aerodynamic efficiency of wings and today are commonplace on airliners, where they reduce fuel consumption, as well as on sailplanes, where they improve glide ratio.
T-tail configuration also allows high performance aerodynamics and excellent glide ratio as the empennage is not affected by wing slipstream.
The wingpack can reach a glide ratio of 6 and permits transportation of oxygen bottles and other material.
It had an efficient high-lift airfoil giving it a glide ratio of 10: 1, which was remarkable for a hang glider ( Rogallo wings were hardly more than steerable parachutes with glide ratios of around 3: 1 ).
For example, with a glide ratio of 15: 1, a Boeing 747-200 can glide for 150 kilometers from a cruising altitude of 10, 000 meters.
There is, however, debate over what exactly constitutes the most efficient tracking position ( providing the best glide ratio ) especially concerning how far ( if at all ) the skydiver's legs should be spread.
glide and from
It should not be attached to the ice, to glide upon collisions, and should end 1 – 3 metres away from the corners.
Short throwers may benefit from the spin and taller throwers may benefit from the glide, but many throwers do not follow this guideline.
By gradually changing from “ oooh ” to “ aaah ” and back again, a spectral glide is created, emulating the ‘ sweeping filter ’ effect that is the basis of the ‘ wah-wah ’ guitar effect.
He reportedly made a glide of " considerable length " from Otay Mesa, San Diego, California, his first successful flight and arguably the first successful one in the United States.
The animal launches itself from a tree, spreads its limbs to expose the gliding membranes and directs its glide through subtle changes in the curvature of the membranes, acting as an aerofoil.
Their bird-like costumes include wing-like capes that could fan out and function nearly identically to parachutes and / or wing suits, enabling the G-Force members to drift or glide down to safety from heights which would otherwise prove fatal.
It is also possible to bomb from a much shallower dive angle, which is sometimes described as dive bombing, but more generally known as glide bombing.
Carrion is a major diet item also: Wedge-tails can spot the activity of Australian Ravens ( sometimes known as crows ) around a carcass from a great distance, and glide down to appropriate it.
Slope soaring is more straightforward and favoured by the Oceanitinae, the storm petrel turns to the wind, gaining height, from where it can then glide back down to the sea.
Slope soaring is more straightforward: the procellariid turns to the wind, gaining height, from where it can then glide back down to the sea.
A more widely-employed weapon was the Henschel Hs 293, which included wings and a rocket motor to allow the bomb to glide some distance away from the launching aircraft.
On May 28, 1944, 42 of 113 glide bombs hit Cologne ( killing 82, injuring 1500 ) after being released at 195 mph 18 miles from the Eifeltor marshalling yard in Cologne ( most " spun in and exploded 15 miles from the target ... many of the batteries failed to hold charge ").
They are the most capable of all gliding mammals, using flaps of extra skin between their legs to glide from higher to lower locations.
In the air, however, they are very capable, and can glide as far as 70 metres ( 230 feet ) from one tree to another with minimal loss of height.
They consist of a number of rib-like segments emerging from a central groove or ridge ; these ribs interdigitate, producing a glide symmetry.
The double-push eliminates the " glide " phase from the above cycle, replacing it with an " underpush " on the outside-edge.
In the glide phase of the classic stroke, friction from road and bearings tends to slow the skater down, yet the deep knee flexion during this part of the cycle fatigues the muscles.
At the end of the war, Pinecastle was briefly used for unpowered glide tests of the Bell X-1 from B-29 aircraft before the program moved to Muroc Army Airfield in California — now Edwards AFB — for the world's first supersonic flight.
There are a few organizations on Maui, which will pick people up at their hotels, take them to the top of Haleakalā and outfit them with a bicycle to glide down the road from just outside the National Park boundary ( starting at 6500 ft altitude ).
0.187 seconds.