Crosswind Landings Without Visibility

Mon Jun 25, 2001 3:57 am

Does the maximum crosswind speed allowed for the landing of a plane depend on weather conditions (visibility, ceiling and steady/gusty winds)?
Which is the usual maximum crosswind allowed for a CAT II/III landing?

Thanks a lot

RE: Crosswind Landings Without Visibility

Mon Jun 25, 2001 4:35 am

Most x-wind limits in large jets are max "demonstrated". This means that was the highest wind the manufacturer has tested it in. You aren't limited to that wind speed, but if you bend something while landing in something higher than those winds the feds are going to slap a "careless and reckless" on you. If you don't bend anything, nobody cares. I usually use the max demonstrated as my max also. We also have a max x-wind limit of 20 kts on wet runways on the B767.

About Cat II/III landings. Most modern aircraft are capable of autolanding and usually the airline's ops specs/AOM requires the crew to autoland in anything less than Cat I mins. Some carriers can hand fly down to Cat IIIa mins (50' DH & 700 RVR) using a HUD like our B727's. Never used one so I don't know what their x-wind limits are and someone else will have to answer.

For UPS B757/767 aircraft the x-wind limit for autolanding in Cat II/III wx was 10 kts. The aircraft autoland limit was 25 kts but retrictions apply during very low vis landings.

Realistically speaking, it's a mute point since most Cat II/III landings are due to fog (unless your landing in a severe T'storm with heavy rain...and why would you being doing that?) and you're not going to have much wind in foggy conditions.

Who is online

Users browsing this forum: No registered users and 4 guests

Popular Searches On

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos