Question re taking speech over on 737 500

1st Official Post

    For example Im AP from a programmed FMC with LNAV and FMS selected... But I want to slow down manually wihout reprogramming.

    I feel I should be selecting speed and that's it (dialing in my requirements) but when I do that a) SPD won't light up. Or b) my dialed in SPD just disappears

    Yikes?.. please change title from speech to speed... Stupid phone

    Edited once, last by Jet-Pack (IPACS): Merged a post created by ighten into this post. (June 18, 2025 at 12:50 PM).

    • Official Post

    In VNAV mode the speed is automatically managed for you. You need to switch to a different mode in this aircraft because is has no Speed Intervention button (SPD INTV) like the newer 737s. Press the LVL CH button to perform the climb or descent instead and then manually adjust the speed as needed.

    Our 737-500 is retrofit with a CDU that is not very common. It wouldn't even have managed speed and no VNAV climb functionality in with this combination but for commonality we kept these features in. That's why it's not working 100% but most things work just like in the other 737s.

    Regards,

    Jan

    Quote from Jet-Pack (IPACS)

    In VNAV mode the speed is automatically managed for you. You need to switch to a different mode in this aircraft because is has no Speed Intervention button (SPD INTV) like the newer 737s. Press the LVL CH button to perform the climb or descent instead and then manually adjust the speed as needed.

    Our 737-500 is retrofit with a CDU that is not very common. It wouldn't even have managed speed and no VNAV climb functionality in with this combination but for commonality we kept these features in. That's why it's not working 100% but most things work just like in the other 737s.

    Thanks that explains it . I was comparing it to the captain SIM I had got used too