There’s a whole thread.

https://www.pprune.org/airlines-airp...rt-london.html

Several, in fact.

Including one started by the poster who is asking the question:

PPRuNe: Another runway at Heathrow

Third runway at Heathrow
 

Have been reading the report which is many pages long. Am interested in readers views on steeper approaches using a 3.2 degree glideslope to reduce noise. It doesnt seem very much to me and can it be used in some form of instrument approach ?

The problem with a steeper glide path is that depending on the aircraft type, conditions, and - quite frankly - the pilot's energy management skills, it can often be more difficult to control the speed of the aircraft, something which is of particular importance to Heathrow and Gatwick arrivals.

It would almost certainly result in more speed brake on approach, more early gear extension and, as a result, more noise. Counterproductive.

HAL are lauding the CDA as a success. On the small Airbus gear is down later than 6 miles.
On the heavies and super heavies they stick to the norm.

On the contrary, it appears to be almost twice as steep as a 3° approach :O


https://www.heathrow.com/file_source...ic_468x269.png

Slightly steeper approach trial update

In theory the ILS/MLS could have been adjusted to the steeper angle, but that would have required all landing traffic to make use of it. Instead, a 3.2° RNAV approach was created for use by the airlines participating in the trial.

I wonder if the folks whose S/H rotations are being canx this week, have considered the diff if we had R3 ... :hmm:

[I'll get my hat] {AND coat as it's dashed parky today}

PAXBOY
BA always cancel short haul first, what ever the reason. A bus up the M6 to MAN after a long haul flight is one of the reasons I no longer use BA or LHR. I think other northern based FF may also have a similar view. -6c up here today but still got out to office,though a bit lonely as gritters in this part of West Yorkshire appear to be a bit hens teeth like today, 4x4 very useful for going up hill even if just a big toboggan going down if not careful !

Though not exclusively - according to thebasource.com, yesterday's cancellations also included LAX and JFK rotations.

But it's true that most of the canx were short-haul, affecting the following LHR routes:

ABZ, AMS, ARN, BRU, BSL, CDG, CPH, DME, DUB, DUS, EDI, FRA, GLA, GVA, HAM, LBA, LIN, MAD, MAN, MUC, NCL, OSL, TLS, TXL and ZRH

Incorrect - the ILS could not have been adjusted as the glide slope would physically need to be moved to accommodate the extra angle. Some aircraft utilising LHR at the time of the initial trial were also not certified to fly above a 3.15 angle. You are also unable to offer CATIII approaches over 3.15 so resilience would take a hit. The RNAV was the best option and allowed HAL to keep a CATIII approach in place for resilience

Er, yes - that's why I said "in theory", with the caveat that it wouldn't have been practicable for a variety of reasons. :O

Anything is possible "in theory" :-)

Clapham
 

In Clapham they have more to worry about the noise of emergency vehicles darting around 24/7, and if they looked up they take there eye of the ball watching out for robbers on scooters and rogue cyclists

https://amp.belfasttelegraph.co.uk/news/uk/ryanair-boss-attacks-heathrow-expansion-cost-36675472.html?__twitter_impression=true

http://www.independent.co.uk/travel/news-and-advice/uk-australia-non-stop-flight-qantas-airlines-16-hours-double-price-travel-a7704616.html?amp&__twitter_impression=true

It's rather like the pic that Heathrow are putting out to give the impression that plane emissions don't affect anywhere outside the airport boundary


https://t.co/lNJRVyP948
https://pbs.twimg.com/media/DX60nmZX4AA66BS.jpghttps://pbs.twimg.com/media/DX60nmZX4AA66BS.jpghttp://

In fig 2 above, which particular aircraft does that departure.Half the runway used and a steep climb on full power? If it is westbound what are all those large buildings to the west?

New York.................

An A320 would be around 1500 ft crossing the fenceline on climbout according to fr24.
The buildings just represent buildings, the larger buildings to the west would be Slough.

Hainan will launch trice weekly Changsha service with B788 eff. 23rd March

Tianjin Airlines (plans) to launch twice weekly Tianjin-Xian-LHR service with A332 eff. 7th May