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Forum: Tech Log

17th Apr 2014, 03:34

Replies: 99

DO winglets have effect on Vref when landing?

Views: 17,746

Posted By underfire

Simple response is NO, vortices do not form at...

Simple response is NO, vortices do not form at the wingtip.

One may observe a compression discontinuity at the wingtip, engine cowling, or at a flap edge, but this is not the wake vortex rollup...

Forum: Tech Log

14th Apr 2014, 14:48

Replies: 99

DO winglets have effect on Vref when landing?

Views: 17,746

Posted By underfire

It is simply because geese are in pairs, so with...

It is simply because geese are in pairs, so with a leader, one leg will invariably be longer....:}

Forum: Tech Log

11th Apr 2014, 02:16

Replies: 99

DO winglets have effect on Vref when landing?

Views: 17,746

Posted By underfire

dirty sanchez This statement is...

dirty sanchez

This statement is completely backwards...

and there is no such this as wingtip vortices.

The discontinuity of viscous flow over the top of the wing is the cause of...

Forum: Tech Log

9th Apr 2014, 14:56

Replies: 99

DO winglets have effect on Vref when landing?

Views: 17,746

Posted By underfire

Just curious, but wouldnt less drag mean more...

Just curious, but wouldnt less drag mean more lift?

If that is so, couldnt you have a lower stall speed?

Forum: Tech Log

7th Apr 2014, 15:43

Replies: 99

DO winglets have effect on Vref when landing?

Views: 17,746

Posted By underfire

td has it correct, the 700 and original 800 wings...

td has it correct, the 700 and original 800 wings needed to have reinforcement added for the winglets...later 800 wings had it built in from the start.

Some 800's have the same approach speed as...

Forum: Tech Log

7th Apr 2014, 01:49

Replies: 99

DO winglets have effect on Vref when landing?

Views: 17,746

Posted By underfire

JL...you have sunshades on the flightdeck? :} ...

JL...you have sunshades on the flightdeck? :}

App is but a small portion of flight, so enroute must be a @#$%&

but thanks for the info...I am sure the drivers reading the thread will...

Forum: Tech Log

6th Apr 2014, 20:21

Replies: 99

DO winglets have effect on Vref when landing?

Views: 17,746

Posted By underfire

BTW...I posted pics of the wing and flap settings...

BTW...I posted pics of the wing and flap settings here..

http://www.pprune.org/tech-log/537474-a320-sharklets.html

its a nice looking wing, too bad about the strobe effect...I have a meeting...

Forum: Tech Log

6th Apr 2014, 19:36

Replies: 99

DO winglets have effect on Vref when landing?

Views: 17,746

Posted By underfire

JLS, Thanks, will look at the thread. I...

JLS,

Thanks, will look at the thread.

I know the 737 series with winglets is really slick compared to the ones prior. I would guess that the reduced drag near te ends of the wings and improved...

Forum: Tech Log

6th Apr 2014, 18:18

Replies: 99

DO winglets have effect on Vref when landing?

Views: 17,746

Posted By underfire

I meant the performance of the wing, not the OP...

I meant the performance of the wing, not the OP Vref (sorry)..the sharklets make it very, very slick compared to the A320 with the typical winglets....the pilots noted it was far more difficult to...

Forum: Tech Log

6th Apr 2014, 16:14

Replies: 99

DO winglets have effect on Vref when landing?

Views: 17,746

Posted By underfire

I guess there are far more 800's without winglets...

I guess there are far more 800's without winglets than I thought...Ryanair, SAS, Delta, and a few others, seems it was common when the 800 first came out...

Realted/unrelated...The A320 with...

Forum: Tech Log

5th Apr 2014, 15:19

Replies: 99

DO winglets have effect on Vref when landing?

Views: 17,746

Posted By underfire

738 without winglets?

738 without winglets?

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