Redigerer Tupolev Tu-144 (avsnitt)

== Produksjon ==

Totalt ble det bygget 16 flygedyktige Tu-144: Prototypen Tu-144 med registreringsnummer ''68001'', en forproduksjonsvariant Tu-144S med registrering ''77101'', 9 Tu-144S med registrering ''77102''&ndash;''77110'', og 5 Tu-144D med registrering ''77111''&ndash;''77115''. En syttende Tu-144 med registrering ''77116'' ble aldri ferdigstilt. Det ble også utviklet minst ett ikke-flygedyktig fly for testing på bakken, noe som ble gjort på samme tidspunkt som utviklingen av ''68001''.
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==Production==
A total of 16 [[Airworthiness Directive|airworthy]] Tu-144s were built: the prototype Tu-144 reg ''68001'', a pre-production Tu-144S reg ''77101'', nine production Tu-144S reg ''77102–110'', and five Tu-144D reg&nbsp;''77111–115''. A seventeenth Tu-144 (reg ''77116'') was never completed. There was also at least one ground test airframe for static testing in parallel with the prototype ''68001'' development. 

The Tu-144S model had NK-144 [[turbofan]] engines, whereas the later Tu-144D model featured more powerful RD-36-51 engines with better fuel efficiency (particularly during [[supercruise]], not requiring [[afterburner (engine)|afterburner]]) and longer range. Along with early [[Tupolev Tu-134|Tu-134s]], it was one of the last commercial airplanes with a braking parachute.

Models equipped with the NK-144 turbofan engines could not cruise at Mach 2 without the [[Afterburner (engine)|afterburner]] on. A maximum cruising speed of Mach 1.6 was possible on "dry" power (afterburner off).
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