drag envelope

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• Drag Me to Hell — Theatrical poster Directed by Sam Raimi Produced by Gr …   Wikipedia

• Common envelope — The red giant (red, left) fills its Roche lobe (dashed green line) and begins transferring mass to the main sequence star (yellow, right). As the mass transfer accelerates, the core of the massive star (gray) and the main sequence star become… …   Wikipedia

• Flight envelope — diagram. In aerodynamics, the flight envelope or performance envelope of an aircraft refers to the capabilities of a design in terms of airspeed and load factor or altitude.[1][2 …   Wikipedia

• balloon flight — ▪ aviation Introduction  passage through the air of a balloon that contains a buoyant gas, such as helium or heated air, for which reason it is also known as lighter than air free flight. Unmanned balloons have been used to carry meteorological… …   Universalium

• Hot air ballooning — is the activity of flying hot air balloons. Attractive aspects of ballooning include the exceptional quiet (except when the propane burners are firing), the lack of a feeling of movement, and the bird s eye view. Since the balloon moves with the… …   Wikipedia

• Coffin corner (aviation) — The coffin corner (or Q corner) is the altitude at or near which a fast fixed wing aircraft s stall speed is equal to the critical Mach number, at a given gross weight and G force loading. At this altitude the airplane becomes nearly impossible… …   Wikipedia

• Airship — For other uses, see Airship (disambiguation). Dirigible redirects here. For the 1931 film, see Dirigible (film). Not to be confused with Balloon (aircraft) or Blimp. Airship …   Wikipedia

• cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …   Universalium

• Hot air balloon — This article is about hot air balloons themselves. For the associated activity, see hot air ballooning. For the rock opera, see Hot Air Balloon (rock opera). For the song, see Hot Air Balloon (song). Hot air balloon in flight …   Wikipedia

• Email — This article is about the communications medium. For the former manufacturing conglomerate, see Email Limited. The at sign, a part of every SMTP email address[1] Electronic mail, commonly known as email or e mail, is a method of exchanging… …   Wikipedia

• Stall (flight) — For other uses, see stall. In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases. This occurs when the critical angle of attack of the foil is exceeded. The critical angle of attack is… …   Wikipedia