Plane 4.1 stable

[kalai1219]

@tridge

The d=101.5 is the distance to the landing point in meters. In this stage the landing logic is monitoring the speed and position of the aircraft to calculate when airbraking should start.

So the VTOL approach distance is auto calculated based on various Aircraft and their Speed .

@tridge

VTOL airbrake: this is a stage where the VTOL motors are started at low throttle to slow the aircraft (relying on momentum drag from propellers going sideways through the air to slow the aircraft without gaining height). The various annotations are: v=20.3 is ground speed, d=102 is distance to landing point, sd=103 is calculated stopping distance (how long it will take to stop based on Q_TRANS_DECEL and ground speed) and h=50.9 is height.

Here VTOL approach distance d =101.5 and VTOL airbrake d =102 almost same for activate the slow Quad motor which means will both happen at same time. little confusion here.