Ground separation for jet aircraft
Thread Starter
Ground separation for jet aircraft
Hi All,
Could someone please direct me to the legislation on the required separation behind a jet aircraft whilst taxiing? I always use to allow a large margin (50 meters) incase the aircraft ahead evacuated but was recently told I was too far away from the aircraft in front. Thanks.
Could someone please direct me to the legislation on the required separation behind a jet aircraft whilst taxiing? I always use to allow a large margin (50 meters) incase the aircraft ahead evacuated but was recently told I was too far away from the aircraft in front. Thanks.
CAO 20.9
Turbo-prop
At or below normal slow taxiing power 15m (50 ft)
At power used to initiate movement of a stationary aircraft 23m (75 ft)
Turbo-jet
At or below normal slow taxiing thrust 30m (100 ft)
At thrust used to initiate movement of a stationary aircraft 46m (150 ft)
Turbo-prop
At or below normal slow taxiing power 15m (50 ft)
At power used to initiate movement of a stationary aircraft 23m (75 ft)
Turbo-jet
At or below normal slow taxiing thrust 30m (100 ft)
At thrust used to initiate movement of a stationary aircraft 46m (150 ft)
The above is the clearance required behind the engines themselves for an Australian registered aircraft to operate its engines - often misquoted as the closest you may taxi behind someone.
You gotta be practical about this fellas- I would not like to be only 150' behind an A380's Engine exhaust ( that would be very close to the tail cone ) Depending on the wind you will have pax and cabin crew complaining about fuel smells in the cabin if nothing else.
Most guys sit around an Aircraft length behind and maybe a little more depending on the wind direction....
( When I say that I mean the length of the Aircraft in front of you )
And yes the smell of Jet A1 in the morning......
Most guys sit around an Aircraft length behind and maybe a little more depending on the wind direction....
( When I say that I mean the length of the Aircraft in front of you )
And yes the smell of Jet A1 in the morning......
Last edited by nitpicker330; 3rd Jul 2014 at 06:24.
glekichi's got it.
Technically if the cheeky bugger behind you moves up to 30-46m behind, by the letter of the law you should be calling for a tug to pull you forward.
Pretty sensible rules we have.
Technically if the cheeky bugger behind you moves up to 30-46m behind, by the letter of the law you should be calling for a tug to pull you forward.
Pretty sensible rules we have.
Folks,
A practical tip, if you are crossing the wake, or behind in anything smallish, the minimum distance is "as far as possible".
Many moons ago now, I was taxiying a DC-3 at YSSY (then ASSY) about 150m behind a BOAC B707-436, the blast hit the rudder so hard I felt like I had one knee around my ear, the poor old girl had to go back to Hangar 81 for a serious inspection.
In the years since, I have seen several examples of light aircraft rolled up into a ball, and only caught by the perimeter fences.
Just take great care.
Tootle pip!!
A practical tip, if you are crossing the wake, or behind in anything smallish, the minimum distance is "as far as possible".
Many moons ago now, I was taxiying a DC-3 at YSSY (then ASSY) about 150m behind a BOAC B707-436, the blast hit the rudder so hard I felt like I had one knee around my ear, the poor old girl had to go back to Hangar 81 for a serious inspection.
In the years since, I have seen several examples of light aircraft rolled up into a ball, and only caught by the perimeter fences.
Just take great care.
Tootle pip!!
