Oracle is south of the bridge by about a mile and SFO is about 3 miles north. So my rough estimate is that the landing pattern is still at over 4 thousand feet when they pass overhead and the Sikorsky looked to have only gone to a couple of hundred feet.
Also, airliners approach well over the bay, not over the sloughs, so they shouldn't have crossed paths anyway.
As for the weight limit. BMW wanted off of the branding so they had to oblige and get the engine out!
You can estimate all you want. I'm telling you they were in in the same neighborhood. Plenty of vertical separation, not dangerously close or anything. However, given all the discussion here regarding airspace, I was surprised to see business as usual during a peak period. SFO would have only needed to delay or alter approaches for three minutes for the lift, but they didn't even bother.
It seems the helo could have flown from pier 80, up the center of the bay, under the approach (as they did anyway) without interrupting anything. Must have had a reason not to, but I don't think it had anything to do with airspace.
As for weight, I guess the chick from Oracle was just making it up to impress me (I wish...she's a hottie!).
Wasn't trying to be contentious with my estimates, just pointing out the vertical separation... which is how air lanes are assigned in the sky. And I'm sure that clearance to get around the lower ceilings around the airport would have been hard to get... and the airport is between pier 80 and Oracle.
In the bay area, I think the bigger issue are Helicopter rules for noise which is probably closer to why the lift was as short as possible. It was probably a condition of the permit.
I don't know what the exact rules are, but I know they are very very restrictive. The reason I heard was that years ago, as the super rich began to fly them between their homes/offices and the airports, and later, from the airports to smaller hubs in the cities. The noise and annoyance supposedly got out of hand. Whatever the reason, you VERY rarely see helis around here. The only exceptions seem to be emergency ambulance helicopters. I don't think there are even 'traffic watch' copters in the bay area... but I'm not sure