Excessive speed up on initial climb

[raybaudi 1]

Dear All.

 

It appears this would be my first post in Avsim Forums, so hello everyone.

 

Just wondering. With TO EPR setting provided by PDCS, the 732 will usually speed up so fast at TO roll that will utterly overshoot V2+15 no matter what pitch you input to the yoke. I would normally accelerate to 250-270 kts in a matter of seconds with that configuration. I'm using the JT8D-15 engines but I have lost the confidence on the EPR calculated settings since it does not allow me a normal initial climb procedure.

 

I have watched several videos on youtube of T/Oing TM 732 but the procedures aren't firmly gripped, varying from incorrect trimming setting, turning LDG LT ON at 80 kt to looking out the window on initial climb. 

 

Any help here?

 

I have thought about D-RATE TO with Assumed Temp but cannot just find an applicable source for this plane.

 

Thanks a lot,

 

Best Regards,

 

raybaudi.

 

 

[pschlute 37]

What is your fuel load when this happens?

 

I always use assumed temp derate with the TM. try 30-40c

[raybaudi 1]

First of all, thank you for your prompt answer, I highly appreciate it.

 

I'd normally take out the TM for short flights: 300- NM apart. With all the IFR regulations, we could be looking at 16 [klb] top amount of FOB.

 

I've tried up to 40-50 degrees Celsius to no avail. Perhaps the people is using a different set of flight dynamics that I am?

[pschlute 37]

What is it like with full  fuel ?

 

I am using v 1.4.........the .air file is dated 21 December 2010

 

v1.4 has the SP-177 autopilot

 

Peter

[raybaudi 1]

Hey, Peter.

 

It appears I had a problem with the *.air file. I was working over the TM/FFX - Eric merge but was using the wrong Flight Dynamics file.

 

Once corrected, the problem disappeared. 

 

Thanks a lot for your advice, though.