3 ms·

the second biggest issue with the data is that it will have written over some of the information that would have occurred at the time the flight deviated from t

the second biggest issue with the data is that it will have written over some of the information that would have occurred at the time the flight deviated from the assigned course. It used to be that voice recorders with 30 minute loops, I am not sure if that is still the case.

ibmthrowaway218 13y ago
The voice recorder only records the last 120 minutes. The data recorder will cover the entire flight.
masklinn 13y ago
Depends on the model (and how much you pay for it). Honeywell's SSVCR[0] is available in 30 minutes and 120 minutes. [0] http://www.sea-avionics.com/lc/cart.php?target=productDetails&model=SSCVR&substring=sscvr http://www.sea-avionics.com/lc/cart.php?target=productDetail...
- Fuxy 13y ago
  That's odd with today's technology we should be able to record hours of voice on to an a usb stick. Granted that is a lot more fragile then a plane black box but still. There should be a way to record a lot more then 120 minutes.
  - roc 13y ago
    I suspect the answer is similar to "why don't they stream FDR-data, live, for all flights?". That being: the airlines feel the cases in which extra measures matter are only a small subset (flights with problems in incredibly remote areas) of a small subset (flights that have any problems at all) and thus not worth the extra cost/complexity/risk to all the other flights.