Specifically, it is the Boeing 367-80 prototype jet airliner. Known as the "Dash-80",
with test pilot Tex Johnston at the controls, he performed a barrel roll over Seattle in August of 1955. It has come to be known as a 707, but the manufacturer's build plate says it is a model 367-80. Yes, its civil registration is N70700, but the FAA registry lists it as a model 367-80.

Yes, it is OPEN HOUSE.

Sorry Brian, I didn't think you wanted to be that specific. :)

I'm curious though. I watched this video and your challenge photo appears as you have posted it...

VIDEO: Boeing 707 Barrel Roll by Test Pilot Tex Johnson | Airline Reporter | Blogging on the airline business

...but I'm wondering if that clip has accidentally rotated the photo on the vertical axis?

It's the outer starboard engine?

http://img88.imageshack.us/img88/7566/img204x.jpg
http://img805.imageshack.us/img805/1920/theotherway.jpg

Wet miserable Saturday afternoon.

I'll carry on with artwork and schematic of an "exhaust pipe"...

http://img809.imageshack.us/img809/9595/14391212.jpg
http://img4.imageshack.us/img4/6867/img206a.jpg

British single bay biplane from the inter-war period.

Gloster Grebe?

Morning to you Kitbag.

British, yes - but not the Grebe.

Possibly the first Hawker type- Woodcock?

Well done mate, the Hawker Woodcock II. :ok:

All yours.

TVN.

How 'bout this (apologies for the poor quality)

http://i203.photobucket.com/albums/a...Chall18Aug.jpg

Nakajima Ki-87 ?

Spot on SD, you have control

Thank you,Kitbag. Apologies for the delay.
The next challenge;
http://i1089.photobucket.com/albums/...33/Quiz162.jpg

It would appear to be a 3-cylinder pusher. Pre-WW.II flying boat ?

Not a pusher type,Brian,nor a flying boat. Certainly prior to WW2.

That looks rather like an Anzani "Fan" type engine, there seem to be a lot of variations in the pushrod/head layouts and this is similar in appearance to that used on the 1908 Bleriot monoplane; so is this machine pre or post WWI ?

I expect it's just a trick of the light or the "ghost in the machine", but that does look like a face peering out of the dark area behind the engine ??

Latvian I believe Terry possibly the Cukurs C-2?

That is the one,Mel.
YHC

Thanks Terry. A very interesting aircraft and well worth the research. Here is the next.
http://i25.photobucket.com/albums/c6...pipequiz34.jpg

Wright -R-3350 on a P5M Marlin...OH if correct...

It is indeed the Wright -R-3350 on a Martin P5M Marlin.
Sycamore has stated Open House.

Wow! sycamore declares an OPEN HOUSE! Will wonders never cease! I don't believe he has ever posted a photo challenge.