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AIR-BREATHING AIRCRAFT [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2014-10-23

English

Subject field(s)
  • Aircraft Piloting and Navigation
  • Operations (Air Forces)
DEF

The altitude beyond which an aircraft or air-breathing guided missile ceases to perform satisfactorily.

OBS

critical altitude: term and definition standardized by NATO.

OBS

critical altitude: term officially approved by the International Civil Aviation Organization (ICAO).

French

Domaine(s)
  • Pilotage et navigation aérienne
  • Opérations (Forces aériennes)
DEF

Altitude au-dessus de laquelle le rendement aérodynamique ou le rendement de propulsion tombe au-dessous d'une valeur minimale reconnue comme nécessaire aux opérations.

OBS

altitude critique : terme et définition normalisés par l'OTAN.

OBS

altitude de rétablissement : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Pilotaje y navegación aérea
  • Operaciones (Fuerzas aéreas)
DEF

Altitud máxima a la cual, a una atmósfera estándar, es posible mantener las r.p.m. [revoluciones por minuto] especificadas, una potencia o presión de admisión especificada.

OBS

altitud de restablecimiento de potencia: término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI).

Save record 1

Record 2 2001-04-01

English

Subject field(s)
  • Spacecraft
CONT

The first stage is a large(>80 m long, >40 m wing-span), unmanned hypersonic aircraft powered by hybrid, air-breathing turbo-ramjets to carry a smaller Hypersonic Orbital Reusable Upper Stage(HORUS) to an altitude of approximately 40 km. HORUS would then separate at a speed of more than Mach 6 and ignite conventional liquid oxygen/liquid hydrogen engines to reach LEO. With a 4-man crew, HORUS would be capable of delivering up to three metric tons to a baseline 450-km, 28. 5 inclination orbit. An unmanned version of HORUS, HORUS-C, could deliver up to seven metric tons of cargo and return a like amount to Earth.

French

Domaine(s)
  • Engins spatiaux

Spanish

Save record 2

Record 3 2001-01-25

English

Subject field(s)
  • Aircraft Propulsion Systems
CONT

(Some) aircraft cruise at around 110, 000 ft, at Mach 5, propelled by air-breathing turbo-ramjets.

French

Domaine(s)
  • Propulsion des aéronefs

Spanish

Save record 3

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