Template:Glide ratio examples

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Flight article Scenario L/D ratio/
glide ratio
Eta (glider) Gliding 70[1]
Great frigatebird Soaring over the ocean 15-22 at typical speeds[2]
Hang glider Gliding 15
Air Canada Flight 143 (Gimli Glider) a Boeing 767-200 with all engines failed caused by fuel exhaustion ~12
British Airways Flight 9 a Boeing 747-200B with all engines failed caused by volcanic ash ~15
US Airways Flight 1549 an Airbus A320-214 with all engines failed caused by bird strike ~17
Paraglider High performance model 11
Helicopter Autorotation 4
Powered parachute Rectangular/elliptical parachute 3.6/5.6
Space Shuttle Approach 4.5[3]
Wingsuit Gliding 3
Hypersonic Technology Vehicle 2 Equilibrium hypersonic gliding estimate[4] 2.6
Northern flying squirrel Gliding 1.98
Sugar glider (possum) Gliding 1.82[5]
Space Shuttle Supersonic 2 (at Mach 2.5)[3]
Space Shuttle Hypersonic 1.8 (at Mach 5), 1 (over Mach 9)[3]
Apollo CM Transonic 0.50 (at Mach 1.13)[6]
Apollo CM Reentry and hypersonic avg 0.368 (prior to 1st peak g), 0.41 (at Mach 6)[7][6]

References

  1. Eta aircraft Eta aircraft performances plots - accessed 2004-04-11
  2. Flight performance of the largest volant bird
  3. 3.0 3.1 3.2 Space Shuttle Technical Conference pg 258
  4. http://scienceandglobalsecurity.org/archive/2015/09/hypersonic_boost-glide_weapons.html
  5. Jackson, Stephen M. (2000). "Glide angle in the genus Petaurus and a review of gliding in mammals". Mammal Review. 30 (1): 9–30. doi:10.1046/j.1365-2907.2000.00056.x. ISSN 1365-2907.
  6. 6.0 6.1 Hillje, Ernest R., "Entry Aerodynamics at Lunar Return Conditions Obtained from the Flight of Apollo 4 (AS-501)," NASA TN D-5399, (1969). p16
  7. Hillje, Ernest R., "Entry Aerodynamics at Lunar Return Conditions Obtained from the Flight of Apollo 4 (AS-501)," NASA TN D-5399, (1969).[dead link]