I plan to fly a mission beyond radio range. Can I just disable both fail safe function ( RC and data link ), after lunching the airplane and set it to auto, then I switch off the radio and let the APM fly the way point. After It had completed the way point and return within range then I switch on the radio to regain control. Is it possible to do this way?
Thanks you
Replies
http://code.google.com/p/ardupilot-mega/wiki/APM_Config
there you can see that you can fly without fail save:
// There are two basic conditions which can trigger a failsafe. One is a loss of control signal.
// Normally this means a loss of the radio control RC signal. However if rc override from the
// GCS is in use then this can mean a loss of communication with the GCS. Such a failsafe will be
// classified as either short (greater than 1.5 seconds but less than 20) or long (greater than 20).
// Also, if GCS_HEARTBEAT_FAILSAFE is enabled and a heartbeat signal from the GCS has not been received
// in the preceeding 20 seconds then this will also trigger a "long" failsafe.
//
// The SHORT_FAILSAFE_ACTION and LONG_FAILSAFE_ACTION settings determines what APM will do when
// a failsafe mode is entered while flying in AUTO or LOITER mode. This is important in order to avoid
// accidental failsafe behaviour when flying waypoints that take the aircraft
// out of radio range.
//
// If SHORT_FAILSAFE_ACTION is 1, when failsafe is entered in AUTO or LOITER modes,
// the aircraft will head for home in RTL mode. If the failsafe condition is
// resolved, it will return to AUTO or LOITER mode.
// If LONG_FAILSAFE_ACTION is 1, when failsafe is entered in AUTO or LOITER modes,
// the aircraft will head for home in RTL mode. If the failsafe condition is
// resolved the aircraft will not be returned to AUTO or LOITER mode, but will continue home
// If XX_FAILSAFE_ACTION is 0 and the applicable failsafe occurs while in AUTO or LOITER
// mode the aircraft will continue in that mode ignoring the failsafe condition.
// Note that for Manual, Stabilize, and Fly-By-Wire (A and B) modes the aircraft will always
// enter a circling mode for short failsafe conditions and will be switched to RTL for long
// failsafe conditions. RTL mode is unaffected by failsafe conditions.
//
// The default is to have GCS Heartbeat failsafes DISABLED
// The default behaviour is to ignore failsafes in AUTO and LOITER modes.
//
//#define GCS_HEARTBEAT_FAILSAFE DISABLED
//#define SHORT_FAILSAFE_ACTION 0
//#define LONG_FAILSAFE_ACTION 0
I want to know this too, can someone chime in with the answer?