# Unable to start mission ; vehicle not ready **URL:** \ **Category:** PX4 Autopilot\ **Created:** [May 8, 2019, 11:54am UTC](https://discuss.px4.io/t/unable-to-start-mission-vehicle-not-ready/10907 "2019-05-08T11:54:43Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![sampathkumarch](https://discuss.px4.io/user_avatar/discuss.px4.io/sampathkumarch/32/8112_2.png) [@sampathkumarch](https://discuss.px4.io/u/sampathkumarch)\ **Post date:** [May 8, 2019, 11:54am UTC](https://discuss.px4.io/t/unable-to-start-mission-vehicle-not-ready/10907/1 "2019-05-08T11:54:43Z")
Sir I have these components 1.pixhawk 2.gps module 3.power management board 4.lipo battery 1. One ESC 6.one brush less motor 1. Q ground control software I don’t have these comments 1.s.bus transmitter and receiver 2.telemetry system 1. Air speed sensor Wiring connection: throttle pin is given IO port 4 pin Right elevator is given IO port 2 pin Left elevator is given IO port 1pin Frame : FIXED FLYING WING I followed these steps 1.upload firmware 2.frame selected ( generic flying wing) 3.calibrate all sensors but air speed sensor is not calibrate so using circuit breaker disabled this 4.power calibration completed 5 safety calibrated I do not have a receiver and transmitter so I can run in autopilot so COM\_RC\_IN\_MODE was desiabled.then after NAV\_RC\_ACT is set 0 . Am using USB cable for connectivity computer to pixhawk so that one also disabled using circuit breaker. Battery checks also disabled by using circuit breaker. Then after I given a mission plane and upload it then show the one message is start the mission.then after I start the mission getting one more message is unable to start mission .vehicle not ready .please resolve my problem sir. please help me sir