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(Clockwise from top left) – S76 FFS Instructor Operator Station (IOS), S76 C++ FFS Cockpit, Frasca Motion Cueing System (FMCS), Frasca AS350 FTD in FMCS Cradle


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There are a number of ways to simulate realistic communications, Gawenda said. Frasca simulators feature full intercom systems that allow instructors to role play as ATC if they wish. This helps the instructor’s lesson plan stay on track, especially during scenario-based training. The instructor might want the student to focus on specific holding instructions or special VFR clearances, for example. Frasca also has developed synthetic ATC communications that feature voice-recognition capability, and third-party ATC communication providers can now be interfaced with its simulators.


“So really it boils down to what sort of training our customers will need to do, and then making sure we tailor our solution to fit those needs,” Gawenda said. “Fortunately, our customers have a variety of options.”


Frasca’s upset recovery module is one way to add a “startle effect” to the sim. Instructors also can insert traffic that might pose a


68 Sept/Oct 2020


collision hazard, or insert a wind-shear scenario. In some cases, Frasca has added smoke generation to the cockpit or sound effects that create a startle factor.


Speaking of g-force, one of Frasca’s unique technological advances is the Frasca Motion Cueing System (FMCS), which optimizes the principles of 6 degree of freedom (6DoF) Stewart platforms for rotorcraft simulation.


“Simulating the hover has always been a challenge, but we threw a lot of traditional thought out the window because many of those tenets are born from fixed-wing simulation,” Gawenda explained. The FMCS is able to deliver motion and on-set cues at a much faster response rate than a Level D FFS, and it provides vibration cues up through 200 hertz. Comparably, large FFS motion systems can typically produce a maximum of only about 20 hertz for vibration effects. Vibration is a key helicopter-specific cue that provides more immersive simulation training.


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