The Naval Air Warfare Center Aircraft Division (NAWCAD) recently started using a rebuilt C-47 transport as its range support aircraft for the Atlantic Test Ranges (ATR) at NAS Patuxent River.
N161PR is a 77 year-old aircraft that has been rebuilt as a BT-67. It now has new Pratt & Whitney Canada PT6A-67R turboprop engines along with other modifications to its wing leading edges and wingtips to extend the airframe hours.
To support range instrumentation work, a Raven Advanced Phased-Array Telemetry Resource (RAPTR) was installed on the nose and a separate flat-panel array antenna was mounted on the bell radome.
With two antennas, the aircraft is capable of tracking three targets, says Dennis Normyle, ATR chief architect.
“For example, we can track an F-18 firing a missile, the missile itself and the missile’s target all at the same time. Future upgrades will expand that number.”
Dan Skelley, lead engineer for the project, says the RAPTR is the first of its kind ever installed in an aircraft.
Before N161PR arrived, ATR had to rely on a King Air which is equipped with one antenna. With the older antenna we have to make a decision: which signal to follow — one weapon or one target,” Normyle said.
Video posted by Basler Turbo Conversions show the interior with telemetry stations. The cockpit has been upgraded with glass instruments. To make space for RAPTR, the nose mounted weather was moved to the chin housing below.
Photo: Congressman Glenn Grothman
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