Jump to content

Sign in to follow this  
Guest rds_mcleod

PMDG 737 series - speed control issue

Recommended Posts

Guest rds_mcleod

737 gurus, please:I have not changed loads, nor have I fiddled 'much' with the PERF settings other than load. I've varied the GTW load based on distance, but I'm missing something.My problem is that using VNAV and LNAV (as I usually do), both the 800 & 900 have trouble maintaing a cruise speed over .60/200K give or take a lie. I have to resort to manual speed control to get any airspeed, eg. about 280K at 350. And yes, I use the fuel calculator to determine fuel load.Any ideas what I may have input incorrectly?

Share this post


Link to post
Guest Hawkeyeted

Ron,-Do you have the Autothrottle armed?-Check the CRZ page in the FMC and see what speed entered is. Should be ~M.79

Share this post


Link to post
Guest tmetzinger

>Ron,>>-Do you have the Autothrottle armed?>>-Check the CRZ page in the FMC and see what speed entered is. >Should be ~M.79Also, if you just upgraded to FSUIPC 3.51, there is a major problem with the way it handles winds. Peter's got fixes in beta test now, but you can get major MAJOR deviations on climb and descent. Go back to 3.50 for now.

Share this post


Link to post
Guest rds_mcleod

Thanks guys... ;-)A/T is set, but I'll have to check the cruise page, and FSUIPC to see if v351 is the headache.

Share this post


Link to post

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  
  • Tom Allensworth,
    Founder of AVSIM Online


  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
  • Donation Goals

    AVSIM's 2020 Fundraising Goal

    Donate to our annual general fundraising goal. This donation keeps our doors open and providing you service 24 x 7 x 365. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. We reset this goal every new year for the following year's goal.


    2%
    $540.00 of $25,000.00 Donate Now
×
×
  • Create New...