Jump to content
Sign in to follow this  
Guest wtsapchy

Ground taxiing

Recommended Posts

Guest wtsapchy

Hi all,Wondered if you have difficulty taxiing the Queen. I mean, it's very difficult to maintain a stable ground speed. It's either increasing or decreasing, and especially making 90 degree turning, the speed decreases rapidly and the Queen comes to a halt very quickly. Is this the real situation in a 747 ?DanielVHHH

Share this post


Link to post

This has been extensively discussed in the forum, but very briefly, the ground handling is the best-possible representation of the real handling. I suggest a forum search if you're interested in the why's and wherefore's.The real thing needs a bit of power to get it going too, and in the PMDG model, consistent speed control does admittedly require some practice. As a rule of thumb, it WON'T roll on with the power at idle, expect to keep a fair bit of power on. If you're making a turn, enter it with as much speed as you can (below 10 knots obviously), apply a bit more power as you commence the turn and try not to use full left/right if you can help it. The more 'turn' you apply the higher the ground friction, so try not to let the taxi speed go below 3 knots as it's hard to get it back up again. It's tricky but with practice you can do it without thinking.


Mark Adeane - NZWN
Boeing777_Banner_BetaTeam.jpg

Share this post


Link to post
Guest

I had zero problems taxing the -400 pax but the freighter seems a whole lot harder. not sure why. harder to make turns, harder to keep up speed, etc

Share this post


Link to post
Guest D17S

I don't get to fly em, but I've spent lots of hours driving 'em around. I really don't find the model that far off. Plenty close enough for a person to get a feel for the real thing. It's not easy. You are 3 stories up, the nose wheel is 15 feet behind you and it's half a million pounds to get rolling. You get into a corner at anything above 15 knots, and it quits turning. Really. Look at that itti-bitti nose wheel and that tonnage that it's trying to change the direction of. I got into a nose wheel skid once . . . just once . . . rainy day, the ground said "Transition to the outer", I said "What is this B.S." (to myself!) So I was a kid "hot-rodding" the big machine through a couple of hard 90 degree turns. Turned the tiller and nothing happened. Here came the grass. Brakes! Deaf rabbits going every which way. Running for their lives. I learned from that. Try it in the sim. Go fast (20 kts) then turn. That's for real. Does anyone remember the rig Boeing setup to train the initial set of pilots how to taxi this monster? There was no experience base. There was no one to train anyone. No one had ever seen anything like it.

Share this post


Link to post
Guest pellelil

I haven't purchased the Freighter yet, so I can only speak of the PAX-version (sorry to admit here that I am currently in "BF2 Mode"), but with a little training its not that hard. You have to remember that the engine takes time spooling up/down so try to avoid increasing/reducing your thrust too much.To assist and make it even easier I have made a special configuration for my CH Products Yoke and Throttle. When I enter a special mode (the CH Throttle can operate in 3 modes) my throttle input is divided by (as I recall) 6 hence even though I move my throttle to its full extend it will only produce a 6th of the full throttle. This way it is VERY easy to input just the right amont of thrust - I leave it up to you to guess whether I have ever forgot to exit this "mode" before trying to Take-Off :-)http://jdtllc.com/images/rcv4bannerbeta.jpgPelle F. S. Liljendal

Share this post


Link to post
Guest Boaz

I think it was a compensation to aviod loosing some other effect on the aircraft.But to me the F also taxiis much more unpredictable.Boaz.

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.
×
×
  • Create New...