Hello,

I am working through the section concerned with ascertaining the rate of climb of the TETH. On page 6.14 of the textbook it states that the mass at start up is 7730kg. Then on page 6.15 it starts using the value 7350kg - 'Note that the interpolation for 7350kg...'

I fail to understand where the new figure of 7350kg is taken from. Clearly the aircraft will have lost some mass due to burning taxi fuel (20kg), and then taking off. However the 350kg drop seems odd. Any help would be greatly appreciated, thank you!

I am working through the section concerned with ascertaining the rate of climb of the TETH. On page 6.14 of the textbook it states that the mass at start up is 7730kg. Then on page 6.15 it starts using the value 7350kg - 'Note that the interpolation for 7350kg...'

I fail to understand where the new figure of 7350kg is taken from. Clearly the aircraft will have lost some mass due to burning taxi fuel (20kg), and then taking off. However the 350kg drop seems odd. Any help would be greatly appreciated, thank you!

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