View Full Version : Minimum clean speed 717?
Checkerboard
12th Aug 2008, 04:35
I have heard ATC on several occasions now ask for 717's to slow down for spacing coming into Perth and once I heard them reply their minimum speed was M.73 and the other time M0.71.
Seems like an very small flight range.... or is there another reason?
porch monkey
12th Aug 2008, 08:00
Up high .73 would be about right. Depends on altitude really. And weight of course. And a small buffer........
Jabawocky
12th Aug 2008, 10:03
Nahhhh its Capt Bloggs with his eye on a cute trolly dolly and wanting to get a slot as quick as he can:}
J:E
Seems like an very small flight range
Flight between the high and low speed buffet boundaries at max operating altitude is in a small speed range. Might be lucky to slow much below M.75 if cruise alt = max alt for weight and temperature.
Never fear though, we can be back at 210 KIAS clean on approach, if you really want. We much prefer "max speed to the field"!
that chinese fella
12th Aug 2008, 13:17
While we are on 717's can someone enlighten me a bit about some approaches I have been a pax on into Newman lately?
Both have been straight in on RWY05 and a really attention grabbing engine spool up/down all the way in. In comparision an approach into YPPH RWY24 a few days later in really crap weather was what I was used to.
Not trying to be smart here just asking a question, - promise!
Capn Bloggs
12th Aug 2008, 13:21
its Capt Bloggs with his eye on a cute trolly dolly and wanting to get a slot as quick as he can
Arr, the impossible dreams... :{
Slow makes me money (and is quieter) but I'm a closet leadfoot at heart! :ok: :E
CB, .71 > .73 is only 11kt TAS at FL350ish.
Chinese fella,
Lots of variables will attempt to put the aircraft off the FMS VNAV profile, causing the autothrottle (or driver) to react to correct the speed. Might have been wind, a reduction in Vert Speed for traffic management, a quick squirt of anti-ice...
that chinese fella
12th Aug 2008, 13:48
ok, what about the 717 go-around yesterday morning (2nd flight in) at Newman?
Capt Claret
12th Aug 2008, 22:02
Chinese fella,
Lots of variables will attempt to put the aircraft off the FMS VNAV profile, causing the autothrottle (or driver) to react to correct the speed. Might have been wind, a reduction in Vert Speed for traffic management, a quick squirt of anti-ice...
or, capturing the minimum speed for the intermediate flap settings.
porch monkey
13th Aug 2008, 11:54
Or maybe the VNAV is about as good as the NG's one.........:uhoh:
Capn Bloggs
13th Aug 2008, 13:16
capturing the minimum speed for the intermediate flap settings.
Yer slowing up too far out, Bloggs. Push it in a bit further..until the captain's eyes look like this: :eek:
that chinese fella
14th Aug 2008, 02:39
Thanks for the replies gents, the engines sound more excitable down the back in cattle class than up the pointy end I guess. For what it's worth I really like the 717 service as SLF - comfy, quiet, hosties easy on the eye, food acceptable - no complaints from this little black duck. :ok:
Re the go-around one of our other pilots said he saw/thought one of the local bug smashers pulled out onto the runway while the 717 was on final. Whoops.
ok, what about the 717 go-around yesterday morning (2nd flight in) at Newman?
Be encouraged by that experience. A go around means you had conscientious, disciplined pilots up front.
Go arounds are not fcuk ups.
Not going around when you should, is the first step to a major fcuk up.
that chinese fella
15th Aug 2008, 10:19
Was on the ground when it happened and saw the aircraft climb away (but not the cause of why), but yep, happy with any go-around decision!