Modification utilizes conditioned air to prevent pilot and copilot side window from fogging. It also provides pilot and copilot removable inner windows which eliminate cold air on the crew?s shoulder. Models 690A, 690B, 690C, 695.
An extended range fuel system modification that increases usable fuel capacity from 425 gallons to 474 gallons for a range increase of approximately 240 nautical miles. Models 690C, 695.