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Chengdu J-20 5th Generation Aircraft News & Discussions

Each prototype may be used for different tests. 2001 and 2002 are definitely been used for Handling and Performamce tests, 2002 may have done avionic test judging by the modifications compare with 2001.

A third non-flying prototype (not 2003) was built for static struuctural load tests.

2003 may be used for more advance tests and also to speed up the testing programe by sharing the the workload with 2001 and 2002. More advance tests include aerial refueling, weapon intergration etc. My 2 ct.

Normal test programme will take more than 1000 hours, stealth jet may take even significantly more than 4th gen jets.

Anyway, none of us will know actual tests 2003 will perform, not even CIA unless they have a man in J-20 testing team. We can only make educated guess.


These are some of the flight tests (from wikipedia), may not be thorough nor details but will give us some idea on the tests.

Handling qualities, which evaluates the aircraft's controllability and response to pilot inputs throughout the range of flight;
Performance testing evaluates aircraft in relation to its projected abilities, such as speed, range, power available, drag, airflow characteristics, and so forth;
Aero-elastic/flutter stability, evaluates the dynamic response of the aircraft controls and structure to aerodynamic (i.e. air-induced) loads;
Avionics/systems testing verifies all electronic systems (navigation, communications, radars, sensors, etc.) perform as designed;
Structural loads measure the stresses on the airframe, dynamic components, and controls to verify structural integrity in all flight regimes.

Testing that is specific to military aircraft includes :
Weapons delivery, which looks at the pilot’s ability to acquire the target using on-board systems and accurately deliver the ordnance on target;
An evaluation of the separation of the ordnance as it leaves the aircraft to ensure there are no safety issues;
air-to-air refueling;
Radar/infrared signature measurement;

Emergency situations are evaluated as a normal part of all flight test program. Examples are: engine failure during various phases of flight (takeoff, cruise, landing), systems failures, and controls degradation. The overall operations envelope (allowable gross weights, centers-of-gravity, altitude, max/min airspeeds, maneuvers, etc.) is established and verified during flight testing. Aircraft are always demonstrated to be safe beyond the limits allowed for normal operations in the Flight Manual.
 
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You're mad, old viet?

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