Wing Pecking

[tcasblue]

Have been reading a book by Eric Brown which has left me with a few items that I thought I might ask about. One is Wing Pecking. In the chapter about the Gloster Meteor, he talks about high speed flight and says: "The compressibility characteristics displayed were a nose-up pitch with a porpoising motion, accompanied by strong wing pecking, the latter being the limiting factor."

Details(that are not too technical) are welcome.

[nonsense]

I've never heard of it before, but I found the quote below via google, from page 12 of the PDF at the link below:

Hang gliders are tailless aircraft and have been developed since the 1950’s. They are not prone to the fast oscillation known as ‘pecking’. Pecking is a rapid oscillatory motion around the pitch axis of the aircraft.

The term is used elsewhere in the same document, use the find function to locate other examples.

https://repository.up.ac.za/bitstrea...hapters1-3.pdf

[megan]

Result of search. Pecking is an attribute often found in flying wings, or a result of structural flexibility in conventional aircraft, where the aircraft has rapid oscillatory changes in angle of attack. Video flying wings.

You Tube

Technical paper.

https://www.researchgate.net/publica...xible_Aircraft

[sycamore]

Meteors came in different shapes ,sizes and built by different manufacturers,so it would be useful to know which model./Mark he was describing.....

[megan]

Brown, in a book, describes a test he did with the aileron slots sealed, the seal blew off on one side and set up a violent aileron oscillation and caused the wing to flex alarmingly (his word). It is said elsewhere that the ailerons were set up to be "heavy" so to prevent pilots over stressing the wings. As said by sycamore, particular mark/type may be pertinent.

[tcasblue]

sycamore

It started life as a Mk. III but was taken off production to be brought up to Mk. IV standard, less VHF mast and armament, and given a high speed finish. It had it's wings clipped to conform to operational fighter standard of the later Mk. IV's.

Thanks for the earlier replies, as I now know what wing pecking basically is.

[tcasblue]

I found another example of Wing Pecking in the book by Eric Brown but this is different. It was on a Supermarine Spiteful, which was a Spitfire with wings that were modified to be laminar flow wings. According to Brown, early models of the Spiteful had three degrees less dihedral and a sharper wing leading edge. The clean stall was preceded by a very large amount of lateral pecking followed by a port wing drop to about 80 degrees. This makes me wonder if my earlier post about the Meteor was also lateral pecking as compared to the flying wing pecking which appears to be a nose up/down oscillation that occurs on some flying wings.