shock bodies?

[piper pervert]

Can somebody pls tell me what exactly shock bodies are.Where they are located on the wing,what they look like,which a/c have them and what exactly they do?

I've been speaking to an engineer who claims they don't exist,but im sure they were covered in atpl studies.

Either way any thoughts appreciated.
Cheers.

[Genghis the Engineer]

Well, at last count I've done two aeronautics degrees and managed the certification of about a dozen aircraft types without hearing the term.

It sounds to me like one of those bits of terminology that somebody, somewhere, has invented and decided to include on a syllabus to make themselves seem cleverer than anybody else. I should either go back to your notes and see what they're going on about , or forget about it.

G

[piper pervert]

mmm i guess im on dodgy ground then.Seem to remember they were related to something called the "area rule" and the "coke bottle effect" but can't remember more than that!

[Kalium Chloride]

Piper,

I understand that the term refers to a device designed to reduce the drag caused by the shock-wave which moves over a high-speed wing.

They were notably incorporated into the wing of the CV990 Coronado - visible as the four distinctive fairings mounted on the trailing edge, which also doubled as fuel tanks.

[gas path]

Genghis
The Convair 990 had what's refered to as 'antishock bodies' on the wing.

Heres an article with reference about 2/3rds down

Damn you beat me to it KC

[Genghis the Engineer]

Ahhhhhhhhh,

So it's the use of shaped nacelles on the wings of a transonic aeroplane to optimise area ruling then.

Nope, still not heard the term until now, but the concept makes sense.

G

[411A]

Convair advertising at the time of the 990, referred to 'em a 'speed bodies'...and yes the 'ole 990 was a fast aeroplane, normal cruise M.90, as I recall.

[BOAC]

AKA 'Sonic Carrots' IIRC

Thinks - are those enough TLAs and FLAs?

[BOAC]

Added to complete the education for Genghis
(Should have gone to a decent UNI......)

With serious hat on - AKA 'Kuchmann Carrots'

[bafanguy]

The CV-990 is the only civilian airplane on which I recall seeing the anti-shock bodies. Have there been any others ?

[Yellow Sun]

How about the Whitcomb Bodies on the Victor 2. IIRC the CV 990 bodies were on the upper surface whereas the Whitcomb Bodies on the Victor were lower surface mounted at about 1/3 span.

YS

[Dr Illitout]

I'm glad somebody can spell Kuchmann!. I was dying to add the name but, as Turin is bound to say I have enough trouble with English!

BTW Dr Kuchmann did lots of reserch at The Royal Aircraft Establishment at Farnborough, the home of british aviation.

Rgds Dr. I

[Victor Meldrew]

Search for the Convair 990 on http://www.airliners.net/. There is a least one pic of a Spantax being dismantled where the term is used.

[Fg Off Max Stout]

As already stated, often known as Kuchmann Carrots and seen on a large number of Soviet heavy transonic aircraft, normally doubling as a home for the main landing gear. All about area ruling.

Pic 1

Pic 2

[head_girl]

kuchemann carrots or whitcomb bodies

Called kuchemann carrots or whitcomb bodies (he of the area rule indeed) and shock bodies in some texts.

[055166k]

Coke bottle effect

Believe Blackburn Buccaneer bomber had coke-bottle fuselage which gave good ride characteristics at low level.