Recent Topics
Any synthetic oil rebates currently or soon?
by 07Piloteer
06/20/18 01:32 PM
2018 Hyundai elantra motor oil
by kapama
06/20/18 01:00 PM
SN Plus on shelves
by 03s
06/20/18 12:23 PM
Group 90 Battery - 45 vs 60aH rating
by The Critic
06/20/18 12:19 PM
Tire on Church 15 Passenger Van
by Gebo
06/20/18 11:58 AM
Battery Disconnect Switch?
by Pike51
06/20/18 11:35 AM
03 Maxima Cam sensor questions
by LeakySeals
06/20/18 11:09 AM
Wood Fairing?? Yes, and it's beautiful!
by webfors
06/20/18 11:08 AM
2006 Prius
by Kira
06/20/18 11:06 AM
Amsoil XL 5w30, 10K OCI, 2006 Expeditition
by meborder
06/20/18 10:18 AM
Mouse Visiting Car
by Ifixyawata
06/20/18 10:07 AM
Hit a shopping cart at 30mph
by LeakySeals
06/20/18 10:00 AM
Let's Talk Bed Pillows
by LoneRanger
06/20/18 09:21 AM
Changed Speedo Gear on 700r4 Tailshaft
by Pike51
06/20/18 09:20 AM
Which do you prefer: ZL-1 Camaro or GS Corvette ?
by Mr Nice
06/20/18 08:41 AM
CVT Discussion
by Sierra048
06/20/18 08:28 AM
Can't get Unifi AP V2 to work on TDS...
by WhizkidTN
06/20/18 07:34 AM
Need mini grease gun
by Duffyjr
06/20/18 07:02 AM
Mazda 6 O2 sensor - CA emission
by Chester11
06/20/18 06:57 AM
Brake Bleeder
by supton
06/20/18 06:56 AM
Newest Members
Theraven, battleman13, Shassis, Santo, aligoodn
65276 Registered Users
Who's Online
98 registered (bdcardinal, BAJA_05, AZjeff, 07Piloteer, 03s, 69Torino, 12 invisible), 1594 Guests and 36 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65276 Members
67 Forums
285653 Topics
4767168 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4690142 - 03/10/18 12:47 AM Rolls Royce Griffon - 1945 magazine article
Shannow Offline


Registered: 12/12/02
Posts: 39858
Loc: 'Stralia

Top
#4690148 - 03/10/18 01:21 AM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
Lolvoguy Offline


Registered: 02/06/14
Posts: 2333
Loc: Canada
approved
_________________________
06 Lexus IS350- Wife
88 BMW 325is- Mistress
03 Suzuki SV650S- One night stand

Top
#4690150 - 03/10/18 01:26 AM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
Kamele0N Offline


Registered: 02/09/15
Posts: 2038
Loc: Slovenia
Tnx thumbsup
_________________________
2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD various 10w40

Top
#4690204 - 03/10/18 06:09 AM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
Trav Offline


Registered: 11/20/06
Posts: 18867
Loc: MA, Mittelfranken.de
Interesting. thumbsup
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#4690246 - 03/10/18 07:09 AM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
SonofJoe Offline


Registered: 07/23/16
Posts: 1052
Loc: Europe
A jolly good read from an easier to understand time.

Top
#4690411 - 03/10/18 10:39 AM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
carviewsonic Offline


Registered: 08/17/16
Posts: 217
Loc: Alberta
Good find! Impressive technology for the day...
_________________________
'18 Impala new
'03 Park Avenue 300k kms
'05 Park Avenue 28k kms
'07 Honda Accord 21k kms
'09 VStar 1300 6k kms

Top
#4690456 - 03/10/18 11:38 AM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
Johnny2Bad Offline


Registered: 05/20/13
Posts: 1810
Loc: Saskatchewan, Canada
Great article. I am always reminded of how the Mustang was considered a dud aircraft until the Brits replaced the engine with the Merlin, and creating perhaps the best fighter and definitely the best bomber escort airplane of WWII.
_________________________
'57 FL Straight 50 wt
'90 Miata 1.8L w/Rotrex Supercharger [Mobil1 0W-40]
'96 Ram 1500 [3.7L Mobil1 0W-20 / 1L 15W-50]
'01 PT Cruiser [Mobil1 0W-40]

Top
#4690463 - 03/10/18 11:45 AM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
andyd Offline


Registered: 09/25/04
Posts: 7142
Loc: Marshfield , MA
That engine is engineered !!. V-12 Aero engines are awesome. P 51 Mustangs are still raced.

The main problem with Rolls Royce engines was the hand tooling required to assemble. Picture a bunch of older guys wearing glasses and dirty aprons busily filing away. "Hmmn ,needs a little off here.Then I'll try the fit after tea.". Add being a prime target for German bombers. The Allison and the Packard engines took the designs and applied modern engineering processes to ensure the parts were built to tolerances that allowed parts to be assembled without so much fitting. Instead of a 100 engines a month, 1000s were produced in the arsenal of democracy.


Edited by andyd (03/10/18 11:47 AM)
_________________________
'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2

Top
#4690478 - 03/10/18 12:07 PM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
Johnny2Bad Offline


Registered: 05/20/13
Posts: 1810
Loc: Saskatchewan, Canada
Did anyone dig into the specs?

2,220 HP
Maximum RPM 2,750
0.992 HP /CuIn

Those are numbers that the OEM automotive world didn't see until the 1960's, and under no circumstances did they achieve them at under 3,000 RPM.

As for the "hand tooling" myth, for starters, if there was any hand tooling, it was done by 19 year old women, not men, during WWII. The UK conscripted to age 45.
_________________________
'57 FL Straight 50 wt
'90 Miata 1.8L w/Rotrex Supercharger [Mobil1 0W-40]
'96 Ram 1500 [3.7L Mobil1 0W-20 / 1L 15W-50]
'01 PT Cruiser [Mobil1 0W-40]

Top
#4690480 - 03/10/18 12:09 PM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
Claud Offline


Registered: 02/11/14
Posts: 593
Loc: Margate England
There is nothing about a modern engine - aside from computer control and VVT - that an aircraft mechanic from WW! wouldn't understand, the basic layout of the Griffon being much the same as the Eagle engine first produced in 1915.
Hydraulic disc brakes, the self starter, windshield wipers, 4WD, you name it, it was mostly all produced before WW!, or at least working prototypes had been built.

Claud.

Top
#4690512 - 03/10/18 12:48 PM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
Yah-Tah-Hey Online   content


Registered: 05/26/14
Posts: 3398
Loc: Columbus,Nebraska
Thank you for posting this very interesting article on the RR aircraft engine. Truly a work of art. And thank you UK for being our ally through good and not so good times.

Top
#4690525 - 03/10/18 01:04 PM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
sleddriver Offline


Registered: 02/06/10
Posts: 4600
Loc: Central Texas
Thanks for posting! Incredible engine.
_________________________
1998 Volvo V70 T5 226,808 mi. Original Owner.
M1 10W-30 HM
"It's never a mistake to buy tools, defined broadly. They're not a cost, they're an investment." - J.B. Peterson

Top
#4690609 - 03/10/18 02:45 PM Re: Rolls Royce Griffon - 1945 magazine article [Re: Johnny2Bad]
BusyLittleShop Offline


Registered: 12/09/11
Posts: 847
Loc: Ca USA
Originally Posted By: Johnny2Bad
Did anyone dig into the specs?

2,220 HP
Maximum RPM 2,750

Correction... 2,750 is the maximum propeller RPM... the crankshaft RPM
could go as high as 3,700 RPM... Rolls Royce V12 engines employ a
single spur gear reduction of 0.98 ratio to multiply the crankshaft
torque and to lowered the propeller RPM... Propellers are most
effective at subsonic airspeeds 480mph to 512mph any higher and you
risk the blade tips speed going supersonic with deadly shockwaves
producing high drag and related mechanical problems... basically the
more prop noise you hear the less efficient thrust you get...

Its the Merlin but your get the layout


My finger is touching the crank on a blown Griffon Reno Air Races...


480mph was possible by trimming the props diameter for 2008 winner Strega...







Edited by BusyLittleShop (03/10/18 02:53 PM)
_________________________
Larry L
Have a Wheelie NICE day
94 RC45 #2 58,000 on 30 weights Currently Mobil 1 5W30
2002 Camaro Mobil 1 0W30
1952 De Havilland Chipmunk




Top
#4690746 - 03/10/18 05:39 PM Re: Rolls Royce Griffon - 1945 magazine article [Re: SonofJoe]
Shannow Offline


Registered: 12/12/02
Posts: 39858
Loc: 'Stralia
Originally Posted By: SonofJoe
A jolly good read from an easier to understand time.


Yes, I treasure my british sourced texts up to around the late 50s...I've read this one cover to cover four times.
https://www.amazon.com/Efficient-Use-Steam-Oliver-Lyle/dp/B0006ARQ7E


Here's another Merlin paper from my archives...(thought I'd go back and find the things I've stashed "for later"
https://drive.google.com/open?id=1TyuwfgQrGmrJeFKRCUZVSempGn6RGfGx
_________________________
It's no wonder that truth is stranger than fiction...
fiction has to make sense
Mark Twain

Top
#4690755 - 03/10/18 05:55 PM Re: Rolls Royce Griffon - 1945 magazine article [Re: Shannow]
Shannow Offline


Registered: 12/12/02
Posts: 39858
Loc: 'Stralia
While in a sharing mood, here's the GEC design for the first of the "big" 500MW units. Ended up being built by Parsons (who became Rolls Royce at one Stage)...these units became the basis for King's North Diddcott, Nanticoke, and the place that taught me to be an engineer (Wallerawang).
https://drive.google.com/open?id=0B72RMQAMdx4iVFFmN2V2OWYyaWluZklPWVRmRjNRTEhxbFJr


This one goes without saying as one of the greatest tomes there is.
https://drive.google.com/open?id=1ed4oWKxeZlmEbbd9gTMTgZA8Pfcr7Rb6

Top
Page 1 of 2 1 2 >