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Rolls Royce Merlin Aero Engine (Read 737 times)
Reply #30 -
Nov 9
th
, 2006 at 6:35pm
Flying Trucker
Ex Member
Hi Doug:
Now I can't find the site I read it in but the way I read it the Merlin was a private venture when developed for the Schneider Cup Seaplane races. Now I shall do some more searching but this comes to mind.
(PV12) for Private Venture and was the engine that powered the Supermarine Spitfire Seaplane to win the Schneider Cup I believe three times running.
I will do some more searching on this as the old memory just is not what it used to be.
LOL
Cheers...Happy Landings...Doug
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Reply #31 -
Nov 9
th
, 2006 at 7:04pm
Hagar
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Quote:
Hi Doug:
Now I can't find the site I read it in but the way I read it the Merlin was a private venture when developed for the Schneider Cup Seaplane races. Now I shall do some more searching but this comes to mind.
(PV12) for Private Venture and was the engine that powered the Supermarine Spitfire Seaplane to win the Schneider Cup I believe three times running.
No no, Doug. You're getting all confused. The Merlin (PV12) was designed several years after the "R" type engine that powered the Supermarine S6 racing seaplanes. The Schneider Trophy seaplanes were never named Spitfire although there was a later seaplane version of the Spit. The Griffon (not the Merlin) was a development of the "R" engine.
http://www.sciencemuseum.org.uk/on-line/flight/flight/s6b.asp
http://www.sciencemuseum.org.uk/on-line/flight/flighten/r.asp
PS.
Quote:
Merlin
By 1932 it was becoming apparent to Rolls-Royce that their best-selling engine, the 21.2 litre 745HP Kestrel was coming towards the end of its development life. A decision was made by Sir Henry Royce to develop a new engine using some of the experience of the Schneider Trophy winning 'R' engine. It retained the V12 configuration and geared supercharger of its predecessors, but was of 27 litres swept volume. It was anticipated initially that this engine would be able to reliably deliver around 1000HP. The engine was known initially as PV12 (Private venture, development initially entirely funded by Rolls-Royce). When in October 1933 the Air Ministry agreed to finance the development, it was named Merlin (Rolls-Royce piston engines were by convention named after birds of prey, jets after rivers).
Quote:
Griffon
The first Griffon was built in 1934, and was effectively a derated engine of "R"-type, as was used in the Schneider- Trophy winning Supermarine S6 aircraft. As such it was a V12 liquid-cooled engine of 37 litres swept volume.
http://www.spitfiresociety.demon.co.uk/engines.htm
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Reply #32 -
Nov 9
th
, 2006 at 8:55pm
Felix/FFDS
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Just remember that the Spitfire as we know it was a bastardization of what should have been a proper fixed gear, inverted-gull wing fighter the Supermarine Type 224 Spitfire.
http://freespace.virgin.net/john.dell/spits.htm#T224
Felix/
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Reply #33 -
Nov 9
th
, 2006 at 9:17pm
Flying Trucker
Ex Member
Okay now I see it...computers are so wonderful...it is great to have this information at your fingertips as long as you can remember where it is.
LOL
Cheers...Happy Landings...Doug
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Reply #34 -
Nov 9
th
, 2006 at 9:40pm
Hagar
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Quote:
Just remember that the Spitfire as we know it was a bastardization of what should have been a proper fixed gear, inverted-gull wing fighter the Supermarine Type 224 Spitfire.
http://freespace.virgin.net/john.dell/spits.htm#T224
Believe that if you like.
http://www.eads.net/xml/content/OF00000000400005/5/67/622675.jpg
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Reply #35 -
Nov 9
th
, 2006 at 10:57pm
Felix/FFDS
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Quote:
Believe that if you like.
http://www.eads.net/xml/content/OF00000000400005/5/67/622675.jpg
Okay, so the design got changed after a German airplane with a British engine came over...
Felix/
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Reply #36 -
Nov 12
th
, 2006 at 7:47am
Flying Trucker
Ex Member
I wonder if there are many Merlin Aero Engine's around now for sale?
I am sure many were bought up and used for aircraft racing at the "Reno Air Races".
I know there is one on display at the Royal Canadian Air Force Memorial Museum at Canadian Forces Base Trenton with a complete Halifax Aircraft.
Cheers...Happy Landings...Doug
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Reply #37 -
Nov 12
th
, 2006 at 9:03am
ozzy72
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There is one on eBay at the moment. They've put it as a Type 500 but I think they mean 50
There are two types of aeroplane, Spitfires and everything else that wishes it was a Spitfire!
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Reply #38 -
Nov 12
th
, 2006 at 5:52pm
Flying Trucker
Ex Member
Now Mark what would that sell for, I am just curious and do not even go onto E-Bay.
Would that not be picked up real quick by someone involved in air racing?
Cheers...Happy Landings...Doug
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Reply #39 -
Nov 13
th
, 2006 at 3:51am
ozzy72
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Starting price was 16,500 quid! It did need an overhaul and work done to it.
A fully rebuilt and zero-timed 66 would cost me 45,000 quid. It is why that'll be the last part of Binky to get! I've just got a Rotol 4 bladed hub on the way however
There are two types of aeroplane, Spitfires and everything else that wishes it was a Spitfire!
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Reply #40 -
Nov 13
th
, 2006 at 4:08am
Hagar
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I think any Merlins in good enough condition to be made airworthy are snapped up by warbird restorers or possibly air racers. They are also in demand by the power boat fraternity. Some have even been fitted in cars. (The Meteor is a de-rated, unsupercharged Merlin produced by Rover for use in tanks.)
PS. American-style racing (Reno etc.) flogs the guts out of any engine. I found an interesting article on racing Merlins vs the big radials here.
http://www.inflightusa.com/columnists/Germain/2006/HotLapJuly/hot_lap_july2006.h...
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Reply #41 -
Nov 13
th
, 2006 at 4:21am
ozzy72
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Don't forget Doug that the Meteor spins in the opposite direction to a Merlin (not sure why as tanks aren't really my thing).
A fully servicable Meteor tank engine will cost you 5000 quid.
There are two types of aeroplane, Spitfires and everything else that wishes it was a Spitfire!
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Reply #42 -
Nov 13
th
, 2006 at 4:47am
Hagar
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Quote:
Don't forget Doug that the Meteor spins in the opposite direction to a Merlin (not sure why as tanks aren't really my thing).
A fully servicable Meteor tank engine will cost you 5000 quid.
I never figured that one out myself as most British engines of the period rotated in the opposite direction to the Merlin. Is it the engine rotation or the reduction gearing?
I was wondering how many Merlins were actually produced & found this interesting article on the subject.
https://www.stallion51.com/sightsound/sightsound-merlin.cfm?axis_v=2
Quote:
During the war years over 150,000 Merlin engines were manufactured in the U.K. and U.S.A.
Quote:
At the time of writing we calculate there are in the region of 500 Merlin engines (not counting museum static aeroplanes) in circulation amongst warbird operators and either installed in aircraft of held as spares. Some parts are becoming critical and there are a number of programs being undertaken to manufacture critical items to enable the Merlin to run for another 50 year, adding yet more achievements to what is already history.
Makes you wonder where they all went. Probably a lot of them were simply scrapped at the end of WWII (Stop crying Mark.). Not sure if production continued post-WWII or if they simply used surplus military engines in aircraft like the Balliol & Argonaut. Unless there's a new source lying undiscovered somewhere it seems the availablility of Merlin engines & spare parts is becoming critical.
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Reply #43 -
Nov 13
th
, 2006 at 5:16am
ozzy72
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I keep blubbing everytime I think about the scrapped Spits
The Meteor actually rotates the opposite direction to the Merlin. I've never found out why, tis one of the GREAT mysteries... Any tank experts out there?
I think the warbird fraternity are now reaching the point with some engines where they actually need to do short production runs of new ones. Merlins, Griffons and several Soviet engines are urgently needed along with several German ones.
The question is of course cost. I know for instance that the Yak (1 or 3 can't remember which) being rebuilt in Russia at the moment is having an Allison lump thrown in. The new run of FW-190s don't have the original type engine either. For authenticity parts are needed....
There are two types of aeroplane, Spitfires and everything else that wishes it was a Spitfire!
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Reply #44 -
Dec 5
th
, 2006 at 7:37pm
Flying Trucker
Ex Member
I guess this will fit in here as good as anywhere else.
Gentlemen I had several beers with a Lancaster pilot today while down at the Officers Mess at RCAF Station Trenton or as the Canadian Government calls it Canadian Forces Base Trenton.
We spent time talking about the Lancaster and the Merlin engines. What I did notice when he got up was he had a cane, a small limp from an old war wound and of course we got talking about the different missions he flew.
He had both engines shot out on a night mission, flew to the target, dropped his bombs and flew home. What amazed me was he had to do this all the while keeping constant pressure on the rudder pedal with his wounded leg.
When you stop to think about it, those engines were not counter rotating but all turn the same way.
That is no small feat when flying an aircraft the size of a Lanc with a wounded leg and then having to land at night as well.
I suppose the cost of having counter rotating props on large four engine bombers was out of the question then but when you think about it, I believe it might have saved a lot of aircrew and battle damaged aircraft.
I am sorry I never got to speak to him for any great length of time however he did get a bar to his gong as he laughingly put it for that little episode.
Yes he did continue flying missions after that and his wound never bothered him until many many years later.
Cheers...Happy Landings...Doug
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