Bombardier
Aerospace announced today that the assembly of the test airframe for its
all-new CSeries aircraft is well underway at the company’s Experimental
Test Facility in St-Laurent, Québec. The test article will be used during the
Complete Airframe Static Test (CAST) that is designed to demonstrate the static
strength of the airframe and show compliance with certification requirements.
Additionally,
parts for the first CSeries test flight vehicle (FTV1) are on site in
Mirabel, Québec, the production site of the CSeries aircraft program.
Major components for the FTV1 are nearing completion and are on schedule for
arrival in late September.
“Every day
brings a new development and it’s very exciting. Whether it’s the start of a
new test, the results of a new test, or the arrival of a new production part,
the team is very enthusiastic about all these milestones,” said Rob Dewar, Vice
President and General Manager, CSeries, Bombardier Commercial Aircraft.
“The assembly of the test airframe is another significant development as we
make headway in the intense ground testing phase before the CSeries
aircraft’s flight test program. The fuselage sections in the test airframe are
being joined and we’re looking forward to adding the wings and the empennage,
and starting the stress tests.”
The test
airframe − comprised of both metallic and composite structures − is being
fitted and assembled in a test rig consisting of a superstructure of steel
towers and trusses, as well as loading structures and loading actuators that
will be used to apply loads to the test airframe. To demonstrate static
strength, a series of load cases – representing flight maneuvers, landing,
take-off and other in-flight and on-ground conditions − will be applied to the
free-floating, non-restrained, counterbalanced test airframe. For selected load
cases, internal cabin pressure will also be applied when simulating in-flight
conditions.
During
testing, strain gauges will be used to measure and record up to 8,000
parameters at defined locations on the airframe. Data from the strain gauges
will be monitored by Bombardier’s stress engineers, as well as by the partners
and suppliers that are involved in the development of structural components for
the CSeries aircraft.
Bombardier
also recently announced that the company is now conducting virtual flights with
“Aircraft 0”* – the on-the-ground Integrated Systems Test and Certification Rig
(ISTCR) for the CSeries aircraft at Mirabel, Québec. The avionics,
electrical, flight control, fly-by-wire, hydraulic, landing gear and wiring
systems are all commissioned, and systems integration and communication have
been successfully demonstrated.
Other rigs
being used during the ground test phase are: the Engineering Flight Simulator
(ESIM) designed and built by CAE and now being installed at the Mirabel ground
testing facility; the avionics Systems Integration Test Stand (SITS) and the
Flight Controls Integration Lab (FCIL), which are already commissioned at
Rockwell Collins’ and Parker Hannifin’s facilities respectively; and the
Interior and Environmental Control Systems (ECS) rig which is being completed
at Mirabel.
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