2.0 — 12 — 12 October 2012
23 In case of ....................................................................................................... 197
23.1 Failsafes.......................................................................................................... 197
• Fail-safe mechanisms ................................................................................ 197
• Handle a low battery warning before launch .............................................. 197
• Handle loss of GPS lock before launch...................................................... 198
• Handle a communication link failure before launch.................................... 198
• Handle a fatal error before launch.............................................................. 198
• Handle a low battery warning during flight ................................................. 198
• Handle a low battery warning during flight (9.6 V)...................................... 199
• Handle a communication link failure during flight ....................................... 199
• Handle loss of GPS lock during flight ......................................................... 200
• Handle a fatal error during flight ................................................................. 200
• Handle a motor failure during flight ........................................................... 200
• Handle undershoot in the final leg of the landing ....................................... 200
• Handle overshoot in the final leg of the landing ......................................... 200
23.2 Emergencies ................................................................................................... 201
• Emergency scenarios................................................................................. 201
• FTS command............................................................................................ 201
• HOLD command......................................................................................... 201
• HOME command........................................................................................ 202
• LAND command ......................................................................................... 202
• GS_UP(S) command.................................................................................. 203
• Obstacles during takeoff ........................................................................... 203
• Aircraft in ZoO not intending to cross the scan area ................................. 203
• Aircraft in ZoO converging to the X100 ..................................................... 203
• Aircraft in ZoO diverging from the X100 ................................................... 204
• Aircraft in ZoO intercepting the X100 ......................................................... 204
• Aircraft in ZoO approaching the X100 head-on......................................... 204
• Aircraft in ZoO intending to land................................................................. 204
• Other objects during flight .......................................................................... 205
• Obstacles during landing............................................................................ 205
23.3 A crash............................................................................................................ 205
• Definition .................................................................................................... 205
• Exceptions.................................................................................................. 205
• Act in case of a crash ................................................................................. 205
• Track down an X100 .............................................
..................................... 206
23.4 Sudden weather changes ............................................................................... 207