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Past Projects - TU-144 Flying Laboratory - Objectives

Surface/structure equilibrium temperature verification
(Exp. #1.2)

  • Objective: Acquire temperature and heat flux data at selected aircraft locations and flight conditions for validation of prediction methods (248 thermocouples, 18 heat flux gages)

Propulsion system thermal environment database
(Exp. #1.5)

  • Objective: Acquire inlet and engine compartment thermal environment flight test data at high speed cruise and static soak back conditions (98 thermocouples, 16 total pressures, 8 static pressures)

Slender wing ground effects
(Exp. #1.6)

  • Objective: Obtain in-flight measurements of the ground effect on lift, drag, and pitching moment of the Tu-144LL including the effects of sink rate and canard position variation (aircraft response parameters)

Structure/cabin noise
(Exp. #2.1)

  • Acquire data on turbulent boundary layer fluctuating pressure levels and acoustic loads, fuselage structural response, and interior noise levels, at selected locations and flight conditions (25 flush mounted pressures, 8 microphones, 6 accelerometers)

Handling qualities assessment
(Exp. #2.4)

  • Perform specific maneuvers at selected flight conditions and acquire aircraft data to allow assessment of the Tu-144LL handling qualities at a variety of weights, flight conditions and aircraft configurations (aircraft response parameters). This included U.S. pilots evaluation of aircraft flying qualities.

Cp, Cf, and boundary layer measurements
(Exp. #3.3)

  • Acquire local (Cp) Coefficient of pressure and friction (Cf) and boundary layer velocity profile data at selected locations and flight conditions (10 skin friction gages, 75 wing static pressures, 72 rake total pressures)

In-flight Wing Deflection Measurements

  • Obtain in-flight static and dynamic wing deflection measurements for validation of aeroelastic prediction tools and methods