When to use F.O.S (RTOW) speeds and NOT QRH speeds
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Join Date: Sep 2007
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When to use F.O.S (RTOW) speeds and NOT QRH speeds
May someone in the know how pse enlighten me on when to use FOS(RTOW Charts) speeds instead of QRH speeds and pse explain why.
short flights long nights
If I had the slightest idea about what it is you are talking about, would love to help
Join Date: Feb 2004
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RTOW which computed from FOS must be checked before every takeoff.
If the weight corresponding to wind and OAT is greater than Maximum
Structor Weight, QRH speed will be used, if not use RTOW's speed no
matter what the actual weight.
kind regards,
If the weight corresponding to wind and OAT is greater than Maximum
Structor Weight, QRH speed will be used, if not use RTOW's speed no
matter what the actual weight.
kind regards,
Join Date: Feb 2004
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mutt,
My statement is taken from ATR's FOS user manual and FCOM.
There're 2 speeds sets can be used for ATR, RTOW chart speed
and QRH speed. Takeoff speed used must be from RTOW chart
with exception that if the computation weight is greater than
the maximum structure weight, use QRH's speed corresponding
to the actual takeoff weight.
kind regards,
My statement is taken from ATR's FOS user manual and FCOM.
There're 2 speeds sets can be used for ATR, RTOW chart speed
and QRH speed. Takeoff speed used must be from RTOW chart
with exception that if the computation weight is greater than
the maximum structure weight, use QRH's speed corresponding
to the actual takeoff weight.
kind regards,
Join Date: Sep 1999
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The QRH speeds are based on BALANCED FIELD, it is possible that the RTOW speeds are based on optimum speeds or unbalanced, therefore how do you know that you can clear the takeoff obstacles using balanced speeds at maximum structural weight?
Mutt
Mutt
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mutt/snam
RTOW's chart speeds always used for takeoff at obstacle airport, also hot and high.
The QRH speeds are useful at airport which pressure altitude not more than 1000'
which we'll be limited by FL, or 2nd segment when OAT is greater than 40 DEG C.
RTOW's chart speeds always used for takeoff at obstacle airport, also hot and high.
The QRH speeds are useful at airport which pressure altitude not more than 1000'
which we'll be limited by FL, or 2nd segment when OAT is greater than 40 DEG C.
short flights long nights
I now see we are talking about an ATR..no wonder I was confused......
