Post by Markoz on Aug 9th, 2011 at 5:21am
When trimming the aircraft, do you trim it to 2.98 (3) going by the information displayed using Cockpit Tooltips? Or by the Stab Trim Indicator (see attached image)?
I use the Stab Trim Indicator and if I place it below 3, the nose barely rises and I need to apply more force to get it off the ground. If my aircraft is at about 330,000 pounds or less I use 3, above that and I use 4 or the default setting. That usually gets me off the ground nicely.
Prior to takeoff, I turn on the VNAV (LNAV only gets turned on the if the SID is straight ahead). Once above 200 feet AGL, I urn the A/P on (I use the center CMD switch most of the time).
In reality, it sounds like you are tail heavy. This is where the CG according to the FMC or just trying to figure it out using the diagram in Aircraft > Fuel and Payload, comes to grief.
Mark
StabTrimIdicator.jpg (Attachment deleted)
I use the Stab Trim Indicator and if I place it below 3, the nose barely rises and I need to apply more force to get it off the ground. If my aircraft is at about 330,000 pounds or less I use 3, above that and I use 4 or the default setting. That usually gets me off the ground nicely.
Prior to takeoff, I turn on the VNAV (LNAV only gets turned on the if the SID is straight ahead). Once above 200 feet AGL, I urn the A/P on (I use the center CMD switch most of the time).
In reality, it sounds like you are tail heavy. This is where the CG according to the FMC or just trying to figure it out using the diagram in Aircraft > Fuel and Payload, comes to grief.
Mark
StabTrimIdicator.jpg (Attachment deleted)