instrument approach speed question

[riot shields]

anybody know where the faa has published anything regarding when/where to stat your speed reduction when being vectored for an approach?
i typically stat a speed reduction about 2-3 miles before the faf to your approach speed and configuration and then do prelanding checklist. usually gives you about a mile to just maintain a stabalized approach before you hit your fix.
suggestions/comments/ or where to find this info published ?

you are supposed to report 5% or 10 knots off of your flight plan form if you are flying a different speed, but does that count for when you are being vectored onto an approach as well?

thanksss

 

[tgrayson]

anybody know where the faa has published anything regarding when/where to stat your speed reduction when being vectored for an approach?

They have not so published.

<<i typically stat a speed reduction about 2-3 miles before the faf to your approach speed and configuration and then do prelanding checklist. >>

I do that on base leg. Being on final is a busy time and I prefer people not to be slowing down, dropping gear, reading checklists, etc. Instead, the pilot, IMO, should focus on tracking the localizer and watching for glideslope. Even more important when the vector isn't ideal, because you may intercept the glideslope immediately on intercepting the localizer and then you really have your hands full.

<<you are supposed to report 5% or 10 knots off of your flight plan form>>

That's enroute stuff. ATC understands that you will be changing speeds while being vectored for an approach, but ATC's wish is, and I quote, "don't die on me."

 

[meritflyer]

anybody know where the faa has published anything regarding when/where to stat your speed reduction when being vectored for an approach?
i typically stat a speed reduction about 2-3 miles before the faf to your approach speed and configuration and then do prelanding checklist. usually gives you about a mile to just maintain a stabalized approach before you hit your fix.
suggestions/comments/ or where to find this info published ?

you are supposed to report 5% or 10 knots off of your flight plan form if you are flying a different speed, but does that count for when you are being vectored onto an approach as well?

thanksss

There is no speed per se for flying the approach other than the speed that suits your aircraft. AIM 4-4-11 discusses a little bit about speeds but nothing really that talks about being vectored. Obviously you have the speed restrictions that are outlined in 91.117.

I typically adjust my ILS/NPA speed once I am established on a published segment. Personally, I'd suggest maybe adjusting the speed a little further out than 2-3 miles if your flying anything that has a little bit of speed to it. In a 172, that may work just fine.

Once you're being radar vectored and set up for an approach, I wouldnt worry about informing ATC about your speed reduction. They're watching you and most likely will know exactly what you're doing.

 

[SpiraMirabilis]

Slow enough that you can get through all of your approach checklists and callouts without being rushed.

 

[USMC-SSGT]

I slow down right around the IAF in the duchess because I cruise at around 155-162 TAS (I use high cruise because I am paying for the plane wet so 20" 2300 RPM is not for me..I go full MP and 25 RPM on the props, saves money for me, not the flight school) and at that rate there is alot of stuff going on once inside the IAF and it gives me time to get configured and all my checklist complete so at the FAF or a little prior I am 100 percent configured and briefed with the checklist completed and all I have to concentrate on is capturing whatever it is I need to capture based on a precision or Non precision approach.

 

[Flysher]

Our profiles call for speed to be set 3 miles from the FAF, which vary plane to plane but it goes anywhere from 150 to 175 depending on what your flying in the props. Then after crossing the FAF its a slow constant decceleration all the way to DH/MDA.