Cool things seen on FlightRadar
Discussion
Moose. said:
fullbeem said:
One of those big Antonov's is at EMA supposedly.
There was an AN-124 on the DHL apron when I taxied out from EMA this morning. Love watching those guys come and go 
http://www.derbytelegraph.co.uk/antonov-225-world-...
http://www.presstv.ir/Detail/2017/02/11/510003/UK-...
Nanook said:
Emirates 777 taking off from Glasgow to Dubai yesterday.
I was leaving the office, he'd left Glasgow heading north, and was passing through 4000ft at 210 knots, with the landing gear still down.
Why would that be?
I think aircraft sometimes leave gear down if the brakes are hot, to assist cooling I was leaving the office, he'd left Glasgow heading north, and was passing through 4000ft at 210 knots, with the landing gear still down.
Why would that be?
Trevatanus said:
Nanook said:
Emirates 777 taking off from Glasgow to Dubai yesterday.
I was leaving the office, he'd left Glasgow heading north, and was passing through 4000ft at 210 knots, with the landing gear still down.
Why would that be?
I think aircraft sometimes leave gear down if the brakes are hot, to assist cooling I was leaving the office, he'd left Glasgow heading north, and was passing through 4000ft at 210 knots, with the landing gear still down.
Why would that be?
Deflecting flying haggis...
fullbeem said:
One of those big Antonov's is at EMA supposedly.
It's flown the broken engine after a swisss 777 diverted to Iqaluit due to said engine quitting.I believe the Anatov is the only plane big enough to carry these huge engines. Wonder what they will do if they are ever grounded?
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From taxiing out and from stopping after the previous landing. On the A320 it isn't unusual to see 300deg+ on the brake disk temperature display - we have fans fitted to help cool them down after landing (SH aircraft tend to as the turnaround isn't as long as the LH boys*).Another reason I've had to leave wheels down after departure is autobrake being inoperative. Normally the autobrake will give the brakes a little pump before gear retraction to stop the wheels spinning. This stops the gyroscopic effect a vast, fast spinning set of wheels have and prevent too much work being required of the hydraulics.
Editted to add - boys and girls of course.
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Yeah, they'll absolutely stay hot during the length of the turnaround, particularly on a calm, hot day. It isn't unheard of to delay a takeoff because of it (Airbus requires 300c max on takeoff and I see 150c showing almost every day on parking, even now in some subzero environments). When we turn onto stand we glance at the temperatures and decide if we need to use the fans. We might even elect to chock the wheels and leave the parking brake off for a bit to improve ventilation. They're carbon so the temperature carries on increasing even after you've parked and shutdown.Landing is definitely the biggest injection of energy into the brakes but even taxiing heats them up like mad. A light SH jet will comfortably taxi at 40mph* even with the thrust levers fully closed, such is the thrust even at idle. The normal technique is to accelerate to 30mph, then brake the aircraft to 10mph and repeat. Riding the brakes heats them up far more than this 'cycling' technique.
I've never felt the gyroscopic effect through the airframe, mostly because we wait for the wheels to spin down if the autobrake isn't working. IIRC we wait 60sec for this to happen. Of course fly by wire means you don't get a huge amount of feedback anyway.
- I've never been this fast as 30mph is widely regarded as a pretty brisk taxi. That said the rate we accelerate up to 30mph some days you know there's a lot more potential in it.
This afternoon there was another AWACs aircraft operating north of Newcastle as well, there is an exercise taking place in Northumberland, air and ground assets from various nations, yesterday watched a group of F15 fly over the northeast on the way to drop bombs, interestingly they only showed up as a single aircraft on ADS.
The information about the exercise was on the local news tonight.
The information about the exercise was on the local news tonight.
Trevatanus said:
pushthebutton said:
Ginetta G15 Girl said:
Given the callsign, I would suggest calibration of the VOR beacon(s).
VOR = VHF Omni-Directional Range - it gives you a radial from the beacon.
Possibly calibrating the westerly ILSs at Heathrow and then being vectored around/in between arrivals?VOR = VHF Omni-Directional Range - it gives you a radial from the beacon.
Looks like the flight cal guys are back at LHR with a newer aircraft.
Annoyingly I actually commuted to and from LHR to STN today (left LHR at 0745 and arrived at STN at 1040, thanks M25) and wouldn't have minded a lift back in a Diamond!
At least this a/c is quieter than the 70s Piper that was thrashed around a few weeks ago.
Annoyingly I actually commuted to and from LHR to STN today (left LHR at 0745 and arrived at STN at 1040, thanks M25) and wouldn't have minded a lift back in a Diamond!
At least this a/c is quieter than the 70s Piper that was thrashed around a few weeks ago.
sebhaque said:
The Diamond's back again tonight - VOR5. I have no problems with it but I suspect LHR's twitter is going to be ablaze with NIMBYs complaining about a little plane razzing over.
LHR RW09L ILS is having some work done on it at the minute - I believe it reopens tomorrow. I suspect the Diamond is doing some work on the new system.BREMBOV6 said:
Helicopter very early this morning in Edinburgh cira 6:30/7am couldn't see it but could certainly hear it. Sounded near the forth road bridge so assume the coastguard also stationery so didn't sound like it was moving about. Can you search on flight radar for past aircraft?
You can play back footage yes, but it may not show up on flight radar 24. I know the local air ambulance doesn't even though it has the correct transponder because they ask for it to be removed.Also if the aircraft does not have an ADS-B transponder it will not show up on FR24.
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Hi,It would most likely have been due to one of the following reasons:
Nose gear spin brake missing or inoperative.
Main gear brake retraction system inoperative.
One or two main brakes inoperative.
You leave the gear down for two minutes after take off to allow the wheels to spin down. You also add approximately 900kg of extra fuel for the inconvenience. It also gets rather noisy so best not to accelerate too much until they are retracted and remember to tell the crew, passengers and air traffic control.
I have never had any issue with excessively hot brakes after landing or prior to departure. The usual common sense approach applies to best manage braking and taxi. They say most brake wear occurs on taxi out when the carbon brakes are generally at their coolest.
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