PPRuNe Forums - View Single Post - New big prop, facing the A320 & 737: TurboLiner.
Old 19th May 2008 | 12:48
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keesje
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Joined: Oct 2007
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Airbus to test electric drives this year on A320.

No that you'll have convinced me electric drive maybe isn't a good idea:

Airbus could run electric taxi demonstration on A320 this year.

Airbus could undertake a demonstration of an electric taxi system on an A320 this year as part of studies to reduce fuel burn and emissions.

http://www.flightglobal.com/articles...a320-this.html
Maybe it is a good idea afterall ?





I quite like the idea of DLC, but in practice on the L1011 - it wasn't so useful. It was designed to prent big lift changes with small attitude changes on the approach. In practice, it was awkward, added weight, difficult to maintain and was eventually disabled by a lot of L1011 operators. As for the crews, you either loved it or hated it. And when activated, it made the landings somewhat firm in a lot of instances.

Also, have you thought about the effect of positioning the spoilers in the accelerated flow behind the props? If they're used in flight, I reckon you will get quite a bit of buffeting.
Dan, I've got to take a closer look at DLC & buffeting. As I mentioned the Turboliner is made to do high frequency short flights from busy airports.

The L1011 was developed nearly 40 years ago without 7-8 approaches a day in demanding airport environments in mind. Fly-by-wire wasn't on the capability list either. (great machine though).

I was thinking on more subtile spoiler system then the conventional big plates killing lift after touchdown. More of a very responsive automated system continuously translating pilot inputs into a combination of various controlsurface movements to achieve smooth height adjustments without gaining speed or changing pitch..

Last edited by keesje; 19th May 2008 at 14:25. Reason: add pict
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