ILS Approach Issue

[CapitanFuturo]

Hi, can someone help me to solve my speed problem when I approach the runway.
I fly boings, the flaps are on, the speed is at 145
everything is going perfect until just the moment I switch the autopilot off,
as I do that the plane decides to increase altitude making me go past the run way.
Should the plain just gradually land?

Thanks

[JB983]

when do you switch the auto pilot off? I'd say 145 is too fast for say a 737 when on short final with full flaps. So you're correct in knowing you have a speed problem. Try a slower speed and just before you flare go to idle power.

[e30gr]

you nkow what is "speedbrake"?????????

[Daveo]

you nkow what is "speedbrake"?????????

Do you know how to use speedbrakes? You certainly don't use them on final!

[djadlib]

145 kts is a proper app. speed for a 737. When you switch of the autopilot you also must turn of autothrottle they are 2 seperate systems, otherwise your engines will increase thrust to maintain speed and you'll overrun the runway.

[mallcott]

Your problem is caused by trim, not autothrottle. Read up on trim and why you MUST manually trim the aircraft before applying the autopilot

[JB983]

if he didn't switch autothrottle off then this is his problem lol.

[JB983]

145 kts is a proper app. speed for a 737. When you switch of the autopilot you also must turn of autothrottle they are 2 seperate systems, otherwise your engines will increase thrust to maintain speed and you'll overrun the runway.

You're approach speed is gonna vary with such a big plane, it's gonna be closer to 138 or something anyhow.

[housefish17]

approach speed is based on weight and flap settings. 145 is highly appropriate.

I'd assume you're leaving the A/T on, as disengaging the A/P doesnt automatically disengage the A/T

[johnost]

Sometimes I forget to pull the throttle to 0 power before disabling the autothrottle - and the plane accelerates!