Sandel Avionics last month announced TSO approval for its HeliTaws helicopter terrain warning system. Sandel said that with radio altitude and air-data computer inputs, HeliTaws will meet or exceed the performance of any current Taws for helicopters. Like previous Sandel instrumentation, the panel-mounted H-Taws is form, fit and electrically interchangeable with existing 3ATI indicators, including radar altimeter displays when installed in rotorcraft panels. The system uses Sandel’s TrueAlert nuisance-alert elimination technology and adds off-airport landing capability and 3-D terrain display capabilities to basic class-A HTaws functions. List price is $18,950.