Moderators: richierich, ua900, PanAm_DC10, hOMSaR
GalaxyFlyer wrote:The contingency plan should be a new airport, or expanding the current one into the bay. The delays are caused by limits to runway acceptance rates due to close parallels.
GF
Georgetown wrote:GalaxyFlyer wrote:The contingency plan should be a new airport, or expanding the current one into the bay. The delays are caused by limits to runway acceptance rates due to close parallels.
GF
Yup. Extending into the bay would obviously be the easiest, but there is zero political appetite to do so, which is beyond frustrating. It’s generally the shorter routes that get affected the most, and generally they can be flown from OAK or SJC, but that’s far from a solution. As a United flyer, it’s a killer.
kfinger wrote:Concentrating flights at the hub so heavily means that something has to give when weather cuts SFO runway capacity in half. The regional flights to MFR, ACV, RDD, FAT, SBP, etc. are the first ones cut because less people have to be rebooked. But people there have the fewest flight options, as opposed to hubs like SEA, DEN, PHX which also have frequent service to SJC and OAK. The unawareness of second tier metro airports like OAK, BUR, and HOU that are just as close to the CBD is a question I pose here: https://www.airliners.net/forum/viewtop ... &t=1423663
rickabone wrote:This change now allows aircraft to be separated by 1 mile between the leading aircraft for Runway 28L and the trailing aircraft for Runway 28R all the way down to CAT 1 minimums.
strfyr51 wrote:Everybody already Knows that OAK or SJC are not foung to solve the problems unless extending the Runways at the Moffett Field Facility or moving to Solano County with an Expansion of Travis AFB is a solution.
rickabone wrote:Delays due to weather have been greatly reduced since the introduction and improvement of .308 (Closely Spaced Parallel Runway) approaches. This change now allows aircraft to be separated by 1 mile between the leading aircraft for Runway 28L and the trailing aircraft for Runway 28R all the way down to CAT 1 minimums. While this still reduces the advertised arrival rate, it was a big enough increase in the rate over single file ILS and is available much more frequently than SOIA resulting in greatly reduced delays. There are only a few hours per day where the expected arrival rate is above the .308 advertised rate. And even the advertised rate is an approximation and is frequently exceeded. This winter will also be the start of .308 approaches to the 19's. The initial arrival rate for this is a very conservative one so it may not have that great of an impact on delays when the airport is in a South East configuration. Additionally there is a temperature requirement for .308 to the 19's which would prevent it's use during cold winter storms and would apply more to the warmer spring storms.