I have been flying the pmdg 737 for about a month now and never had the plane start lifting off the ground on its own at 120 kts. Maybe from now on I should always put a bit of presure on the yoke. I know the manual says to put a bit of down presure to hold a stright line. But never really had to until today.

120 for V1 seems like an almost empty plane , and due to its lightness it may be very sensitive and eager to takeoff . This is only from personal experience

Check your controls for calibration or spiking... maybe its sending some erroneous pitch up input

 

Are you sure you're calculating your V speeds properly? Depending on the variant, the TOW and other factors, 120 KIAS is a perfectly valid Vr...

Yes, with improper trim settings.

V1 isn't stall speed - definitely possible for it to rotate off early if you're not pushing forward and the trim is too nose up.

Your right. Didn't set the trim. I was just messing around learning the long state start. Thanks

I know the manual says to put a bit of down presure to hold a stright line. But never really had to until today.

I believe this means up to 80 knts, to enable stable nose wheel steering. At 80 knts, the rudder then becomes efficient and the forward pressure can be backed off ?

The fcom states to maintain light forward pressure , it actually never mentions backing off it. (Until Vr of course)

 

Ross Smith

The fcom states to maintain light forward pressure , it actually never mentions backing off it. (Until Vr of course)

 

Ross Smith

80kts. FCTM.

Ah knew fcom didnt mention from memory... not read fctm for ages.

The correct sequence of events is: Vmu, V1 Vr V2

Your a/c should always be able to get off the ground before V1. And that speed is Vmu-Minimum unstick.

V1 is not the minimum take-off speed. It is the point at and beyond which you are committed to a take-off.

 

You need to check your manuels for the weight and balance schedules and note the numbers given for all four V speeds quoted above.