Originally Posted by
Turbine D
I used to fly in and out of Albuquerque on TWA quite a bit. TWA flew both 727s and 707s in and out at the time. The 727s didn't quite have enough energy to depart up through the "pass" whereas the 707s did. Both were great airplanes in their day.
I flew both for TWA. Even with the performance of the 707 there was no IFR procedure for departing straight-out to the east. If you experienced that, the captain would have had to request a VFR climb.