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Forum: Tech Log

4th Jan 2013, 14:08

Replies: 14

a380 thrust reverser

Views: 4,148

Posted By barit1

There are some methods (mostly theoretical) for...

There are some methods (mostly theoretical) for reducing idle thrust in a turbofan. One I have seen proposed is a bleed valve between the HP and LP turbine. A beautiful concept, reducing the driving...

Forum: Tech Log

1st Jan 2013, 16:08

Replies: 14

a380 thrust reverser

Views: 4,148

Posted By barit1

Correct, nonetheless significant. There is...

Correct, nonetheless significant.

There is an operability parameter known as acceleration fuel margin. It is the difference between the fuel required to hold a steady-state speed (say, ground...

Forum: Tech Log

30th Dec 2012, 21:35

Replies: 14

a380 thrust reverser

Views: 4,148

Posted By barit1

Technically, the constraints on idle thrust are -...

Technically, the constraints on idle thrust are -

o Flight idle - limited by the time required to accelerate (throttle burst) to 90% of TO thrust (for GA).

o Ground idle - probably limited by...

Forum: Tech Log

29th Dec 2012, 01:09

Replies: 14

a380 thrust reverser

Views: 4,148

Posted By barit1

Since #1 and #4 oft overhang, there's substantial...

Since #1 and #4 oft overhang, there's substantial risk of FOD/erosion/etc. if reversers were employed there.

Showing results 1 to 4 of 4