Sonar picture

Someone sent me another side scan sonar picture and I just wanted to see
what people thought about it. Any comments?

Steve

http://www.divetheworld.com/Stories/Unknown1/index.htm

"Steve Carmichael-Timson" <stevect@dont.even.bother.com> wrote in message
news:c61it4$11r$1@titan.btinternet.com...
> Someone sent me another side scan sonar picture and I just wanted to see
> what people thought about it. Any comments?
>
> Steve
>
> http://www.divetheworld.com/Stories/Unknown1/index.htm

Not a typhoon, wrong wing planform and engine cowling. Most likely to be a
Thunderbolt. Thunderboolts were used by the RAF (e.g. 611 Squadron)

"Steve Carmichael-Timson" <stevect@dont.even.bother.com> wrote in message
news:c61it4$11r$1@titan.btinternet.com...
> Someone sent me another side scan sonar picture and I just wanted to see
> what people thought about it. Any comments?
>
> Steve
>
> http://www.divetheworld.com/Stories/Unknown1/index.htm
>
>
is this image for real..... it looks to good to me
can side scan realy produce that........ image

David

"david" <im@fedup.com> wrote in message
news:c62vr3$5t$1@sparta.btinternet.com...
>
> "Steve Carmichael-Timson" <stevect@dont.even.bother.com> wrote in message
> news:c61it4$11r$1@titan.btinternet.com...
> > Someone sent me another side scan sonar picture and I just wanted to see
> > what people thought about it. Any comments?
> >
> > Steve
> >
> > http://www.divetheworld.com/Stories/Unknown1/index.htm
> >
> >
> is this image for real..... it looks to good to me
> can side scan realy produce that........ image

My thoughts exactly - looks fake to me!

david wrote:
> "Steve Carmichael-Timson" wrote
>> Someone sent me another side scan sonar picture and I just wanted to
>> see what people thought about it. Any comments?
>>
>> http://www.divetheworld.com/Stories/Unknown1/index.htm
>>
> is this image for real..... it looks to good to me
> can side scan realy produce that........ image

Well I was wondering that. The trademark of SSS is the
bright return of the vertical surfaces and the shadow
behind that that tells you its height. It only looks
a bit three-dimentional with a lot of faith. This is
just too good.

Side scanning a tailfin/rudder like that will just not
give that sort of view. Think about how the fish is
scanning and where the shadows should be.

Also 50 years underwater, even still, fresh water, would
reduce the wings to spars not to mention the damage from
doing the air-water interchange (at least a flying boat,
the previous picture, had the excuse it might sink).

I fear somebody may well be being hoaxed. I hope it is
just us not a prospective sponsor.

nigelH

Nigel Hewitt wrote:
> Well I was wondering that. The trademark of SSS is the bright return
> of the vertical surfaces and the shadow behind that that tells you its
> height. It only looks a bit three-dimentional with a lot of faith. This
> is just too good.

I must admit my first reaction was "Hmm, looks too good" as well...

Al.

"Nigel Hewitt" <news@REMOVETHISnigelhewitt.net> wrote in message
news:4084ff93$1@news.star.co.uk...

>
> Well I was wondering that. The trademark of SSS is the
> bright return of the vertical surfaces and the shadow
> behind that that tells you its height. It only looks
> a bit three-dimentional with a lot of faith. This is
> just too good.
>
> Side scanning a tailfin/rudder like that will just not
> give that sort of view. Think about how the fish is
> scanning and where the shadows should be.
>
Yup I agree, it doesn't look right for sidescan - the shadows and contrast
just aren't right.

However, quite remarkable sidescan images are possible :)
http://tinyurl.com/33g8r

Taken from this site:
http://tinyurl.com/2yrrw

(This guy has built his own sidescan system)

best

Matt

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hi steve,could this "fake" be a mermaid a cousin of ----
***THE ANGEL OF THE NORTH***
in Gateshead ,Tyne& Wear,England???? no engines to fly with but very
"odd" to look at??? ---- angie


--
fatcat

Angie Fishwick
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"NoJags Neil" <neil264removethisbit@andthisbithotmail.com> wrote in
message news:w5adnTmeju9GrhjdRVn-tw@nildram.net
>
> "Graham Skelly" <graham@websitenamePalehorizon.com> wrote in message news:c61q4j$2ll$1$8300dec7@news.demon.co.uk...
> >
> > "Steve Carmichael-Timson" <stevect@dont.even.bother.com> wrote in message
> > news:c61it4$11r$1@titan.btinternet.com...
> > > Someone sent me another side scan sonar picture and I just wanted to see
> > > what people thought about it. Any comments?

> The wing seems to be slightly eliptical, which would also indicate a P47 Thunderbolt. I'm fascinated by the artifacts on the
> leading edge of each wing, about 1/3 of the way in from the wingtip. There doesn't seem to be a feature at this point on an
> "intact" P47, or a Typhoon. Maybe decaying ammunition causing corrosion? I don't know. Is this a feature that has been seen
> before in wrecked fighter aircraft of this type?


Faked or not and I don't think they made a single engine fighter in fact
IIRC the only single engine aircraft
they aircraft produced were the Beaver and Chipmunk but the tail looks
very DeHavilland to me.
That rounded top to the main tail & Elevators looks familiar.

DaveA


--
Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

david wrote:

> is this image for real..... it looks to good to me
> can side scan realy produce that........ image
>

Also, what is the return of mud?

I've dived a few of the lakes in question and always found the bottom to
be very silty - even more so at any depth. I would have thought that
over the years since anything has crashed there unreported that the
plane would have sunk into the silt (or the silt would have piled up
around it). I'm not very good at interpretting SSS images, but it
appears that the aircraft is in a depression... does that mean anything?

Ben

--
Ben Panter, Edinburgh
My name (no spaces)@bigfoot which is a com.