lburriss
Topic Author
Posts: 1
Joined: Wed May 30, 2018 1:28 am

Runway at Andersen AFB

Wed May 30, 2018 1:48 am

Does anyone have details on the "dip" in the runways at Andersen AFB, Guam? I was assigned to Andersen during the mid-1970s, and recall the uphill gradient caused significant acceleration loss, with a 500 foot drop off the north end of the runways. I've checked various aviation publications, and maybe I'm just missing the data. I seem to recall the "dip" was some 60 feet. Does anyone know the gradient? Length of the dip from beginning to end? Any pilot experiences? Thanx.
 
RetiredWeasel
Posts: 643
Joined: Sat Jul 05, 2014 8:16 pm

Re: Runway at Andersen AFB

Wed May 30, 2018 4:58 am

RW 6L has a .8% up slope so about 80 ft from one end to the other.. RW 6R is less. T/O data, speeds etc done nowdays by computers figure the gradient in the calculations.

http://4.bp.blogspot.com/-w2feZH6eqN8/UUAFjLsWqjI/AAAAAAAAAIA/0RoOMn7fOok/s1600/PGUA+Airfield+Diagram.JPG
.
 
mmo
Posts: 1604
Joined: Thu Apr 18, 2013 3:04 pm

Re: Runway at Andersen AFB

Wed May 30, 2018 5:17 am

Spent 2 years there flying D model Buff. Great experience and best assignment I had. Was loads of fun when you're at MTOW and you see the airspeed indicator suddenly stop it's rate of acceleration. But, I suppose the upside is you have instant altitude on the other side of the cliff!

Generally most takeoffs are on the right runway due to the lower gradient.

One thing I will add, the runway, when wet, was a handful. Between the rubber deposits and the coral the braking action would be poor at best in some locations.
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