Bristol Perseus survivors?

Returning to the OP’s original question: The Canadian Aviation & Space Museum in Ottawa lists a Perseus X in its list of ‘Aircraft Powerplants’. I’m not sure if this this list is current, and I’ve never seen it or a picture of it.

Regards
Bill

It certainly looks about right but it’s quite tricky to tell Bristol sleeve-valve pistons / sleeves / cylinders apart; they’re almost all 5.75 inch bore and vastly different capacities are achieved by (small) differences in stroke and either, nine, fourteen or eighteen cylinders.

The cylinder cooling fins look thicker and spaced further apart; that may indicate an earlier cylinder.

Is it 5.75 inch bore? Is there a piston (stuck) in the bore? Is there an ‘FB?????’ (‘FB’ plus four or five digits) part number stamped near the base mounting flange of the cylinder?

CD. There is no piston in the bore but I found a number as you suggested FB 55910 HDA 72A11.
Regards
Tony K

This is a cut-away Bristol Perseus cylinder that was on display at Duxford a while back.

Of course but it will be very hard. The difficulties are mostly to do with creating the body castings. I recently finished an Armstrong-Siddeley Lynx in 1/3 scale, 7 cyls poppet valves. Goes well but you get covered in hot black oil standing behind it!

Wez1

Absolutely, Rob. Would love to see some of those in the air. Shame it’s so far away!

Thanks for those links markb, that guy has a seriously impressive collection of types in his ‘man cave’. It shows great vision and imagination by him to collect what some others would turn their nose up at. And what a beauty that Vincent is.!

Rob

Thanks again CD I will pass on all of that to my fellow volunteers at the museum on Monday. They are all former Air Corps techies and subsequent service world wide. In stark contrast I would not know the top to the bottom of a cylinder, so when I say that I am non technical I do not exaggerate believe me.
Regards
Tony K

Is there is a piston stuck in the sleeve? There is something visible through the exhaust port but it is probably just the top of the sleeve. Can you measure the length of the sleeve?

If there is a piston with it can you get a photograph of the inside of it. There was a sectioned cylinder / sleeve from a Perseus engine on display at Duxford; the piston was interesting as it was sort of half-way in evolution between the piston for the Pegasus and the piston for the Hercules. I’ll try and post a photograph if I can find one.

Many thanks CD I do not have any dimensions but hope to get them next week when I am back at the museum again.
Regards
Tony K

Thanks for those links markb, that guy has a seriously impressive collection of types in his ‘man cave’. It shows great vision and imagination by him to collect what some others would turn their nose up at. And what a beauty that Vincent is.!

Rob

And here’s the Vildebeest.

https://www.flickr.com/photos/willp/4589030444/in/photostream/

Some info about the Vickers Vincent in new Zealand here….

http://www.ww2aircraft.net/forum/warbird-displays/day-subritzkys-34267.html

It certainly looks about right but it’s quite tricky to tell Bristol sleeve-valve pistons / sleeves / cylinders apart; they’re almost all 5.75 inch bore and vastly different capacities are achieved by (small) differences in stroke and either, nine, fourteen or eighteen cylinders.

The cylinder cooling fins look thicker and spaced further apart; that may indicate an earlier cylinder.

Is it 5.75 inch bore? Is there a piston (stuck) in the bore? Is there an ‘FB?????’ (‘FB’ plus four or five digits) part number stamped near the base mounting flange of the cylinder?

[ATTACH=CONFIG]235800[/ATTACH]Evening all,
Is the attached picture from a Perseus engine as fitted to a Lysander or something larger which we have come across in the Air Corps Museum at Baldonnel ?
Regards to all,
Tony K

That’ll be nice, Wez1, working sleeves and all?

Anon.

Thank you for this. I shall visit. I am plannning a large scale working model of this engine.

There is. Plus a Vincent.

Only Vildebeests IVs (and no Vincents) had Perseus and were built in limited numbers but some went to NZ. But quick look shows that the Royal New Zealand Air Force Museum Vildebeest incorporates large parts of NZ102 plus NZ015 (both Pegasus engined MkIII) plus a couple of Vincents (NZ355 & NZ357)

The other rebuild is the Pegasus engined Vincent NZ311.

http://www.adf-serials.com.au/nz-serials/nzvildebeest.htm

http://www.adf-serials.com.au/nz-serials/nzvincent.htm

Evening all,

The engine that Merlinpete refers to was sold at an auction in Staffordshire in 2008, this is a photo I took on the day,

Sorry I don’t remember who the winning bidder was.

Andy

New Zealand? There’s a Vildebeest there under restoration…

The Lashenden Air Warfare Museum has the remains of a Perseus from Botha L6262 that crashed on 24th February 1941

[ATTACH=CONFIG]235641[/ATTACH]

There is a nicely sectioned Perseus on Wiki but where is it?

Finland.