I have a Sundstrand Flight Data Recorder (FA-542) which I'm going to take about to show engineering students how it works. Does any one have an old manual? Any insights or information on how exactly they work?
This one is from Delta Airlines and is stamped 1967 ... it uses a magazine that (I think) contained a roll of inconel on which some of the flight parameters (e.g., altitude and airspeed) were inscribed. Based on the number of "scribing" arms inside it seems to record four parameters. Based on FAA rules issued in 1958 I'd guess these where altitude, airspeed, heading and vertical acceleration.
Any ideas what kind of aircraft this might have on? The flight data recorder rules changedi n 1972 - they required more parameters - but the rule change did not affect Boeing 707, 727. 737 and DC-8 and DC-9's. According to Dennis Grossi of the NTSB "the flight recorder requirement remained essentially unaltered until the issuance of rule changes in 1987 and 1988." In 1988 all original foil-type oscillographic recorders were replaced with digital recorders - or at least this was a recommendation ... not sure when it happened.
So, any opinions or insights? I will post a link to the video when done.