Reply
 
Thread Tools Search this Thread
 
Old 09 July 2013, 20:18   #21
Member
 
xs 400's Avatar
 
Country: UK - England
Town: yeovil
Boat name: Lilly of lyme
Make: XS
Length: 4m +
Engine: 30hp Yamaha
Join Date: Jul 2011
Posts: 631
Quote:
Originally Posted by mister p View Post
They were injected weren't they. Arguably a better machine than the Spit.......
certainly more advanced "While the conventional mechanical superchargers consisted of one or two compressors driven via a two-speed gear, Daimler-Benz utilised an ingenious barometrically controlled hydraulic clutch which adjusted the compressor speed and thus the charging of the engine according to the needs at a given altitude."

and

Taking into account the age of the Merlin design and its relative small displacement this two-stage inter- and after-cooled engine was a superb machine. In comparison with the German engines the Merlin was lighter due to the relative abundance of metals for making light alloys. When comparing outputs one should also bear in mind that the allies were well supplied with high grade fuels (100/130/150 octane). The Germans had to make do with 87, 92 or 96 octane, the higher grade fuels being especially scarce. ADI was used by both sides in the later stages of the war.
The Merlin 60 series were put into service in the late summer of 1942, around the same time that the DB 605A-1 went into service. The high altitude performance the Merlin 60 series was superior to the DB 605A-1. This superiority lasted into 1944 when the new AS and D sub-types went into service. These late sub-types equalled or bested the high altitude performance of the Merlins (Rolls-Royce and Packard) perhaps with the exception of the Mark 70. When GM-1 was used the picture changed thoroughly in favour of the DB 605.
The DB 605 basicallly gave good low altitude performance, especially at sea level (read the discussion of the supercharging systems). In this regard the DB 605A-1 was superior to the Mark 61, 63, 66 and 68 Merlins. The superiority of the late mark DB 605's at low and medium altitude was very pronounced when using MW-50 (AM, ASM), high octane and high boost (DB, ASB), high octane high boost
__________________
xs 400 is offline   Reply With Quote
Old 09 July 2013, 20:32   #22
Member
 
mister p's Avatar
 
Country: UK - England
Town: LONDON
Make: SR4/ZODIAC/3D
Length: 4m +
Engine: 30T/40T
Join Date: Oct 2011
Posts: 1,433
Now that deserves a beer!!!!!!!!! Only if it was from memory though.
Promise?
__________________
mister p is offline   Reply With Quote
Old 09 July 2013, 20:34   #23
Member
 
xs 400's Avatar
 
Country: UK - England
Town: yeovil
Boat name: Lilly of lyme
Make: XS
Length: 4m +
Engine: 30hp Yamaha
Join Date: Jul 2011
Posts: 631
Quote:
Originally Posted by mister p View Post
Now that deserves a beer!!!!!!!!! Only if it was from memory though.
Promise?
pinkey promise.......................................not!

i'm having a beer any way! cheers
__________________
xs 400 is offline   Reply With Quote
Old 09 July 2013, 20:35   #24
Member
 
mister p's Avatar
 
Country: UK - England
Town: LONDON
Make: SR4/ZODIAC/3D
Length: 4m +
Engine: 30T/40T
Join Date: Oct 2011
Posts: 1,433
There's a classic working warbird museum in west Cornwall I've heard. Must go. Can't remember where it is though.
__________________
mister p is offline   Reply With Quote
Old 09 July 2013, 20:38   #25
Member
 
mister p's Avatar
 
Country: UK - England
Town: LONDON
Make: SR4/ZODIAC/3D
Length: 4m +
Engine: 30T/40T
Join Date: Oct 2011
Posts: 1,433
Quote:
Originally Posted by IanH View Post
Fantastic news that a mosquito is back in the sky. IMHO, one of the most beautifully proportioned planes ever designed.
Absolutely correct........they are simply stunning and as you say, as far as proportions go, can't fault it.
__________________
mister p is offline   Reply With Quote
Old 09 July 2013, 20:39   #26
Member
 
xs 400's Avatar
 
Country: UK - England
Town: yeovil
Boat name: Lilly of lyme
Make: XS
Length: 4m +
Engine: 30hp Yamaha
Join Date: Jul 2011
Posts: 631
Quote:
Originally Posted by mister p View Post
There's a classic working warbird museum in west Cornwall I've heard. Must go. Can't remember where it is though.
The Classic Airforce Collection this one?
__________________
xs 400 is offline   Reply With Quote
Old 09 July 2013, 20:45   #27
Member
 
mister p's Avatar
 
Country: UK - England
Town: LONDON
Make: SR4/ZODIAC/3D
Length: 4m +
Engine: 30T/40T
Join Date: Oct 2011
Posts: 1,433
Yes, not far from our Fowey base......just never have followed it up. Once we get to Fowey, the driving's over usually. Will have to go those few extra miles this weekend.
And re proportions..........the Mosquito has a lot of competition.

Attached Thumbnails
Click image for larger version

Name:	bird-plane.jpg
Views:	176
Size:	102.5 KB
ID:	82680  
__________________
mister p is offline   Reply With Quote
Old 09 July 2013, 20:55   #28
Member
 
Boatnomad's Avatar
 
Country: Ireland
Make: Zodiac Mk I
Length: 3m +
Engine: 15 hp Yam two stroke
Join Date: Feb 2012
Posts: 728
Greatest plane there ever was, SR 71-Blackbird
Attached Thumbnails
Click image for larger version

Name:	SR 71-Blackbird..jpg
Views:	420
Size:	220.8 KB
ID:	82681   Click image for larger version

Name:	SR 71-Blackbird.jpg
Views:	215
Size:	101.4 KB
ID:	82682  
__________________
Boatnomad is offline   Reply With Quote
Old 09 July 2013, 20:59   #29
Member
 
mister p's Avatar
 
Country: UK - England
Town: LONDON
Make: SR4/ZODIAC/3D
Length: 4m +
Engine: 30T/40T
Join Date: Oct 2011
Posts: 1,433
Don't think anybody has ever seen one flying.
__________________
mister p is offline   Reply With Quote
Old 09 July 2013, 21:06   #30
Member
 
mister p's Avatar
 
Country: UK - England
Town: LONDON
Make: SR4/ZODIAC/3D
Length: 4m +
Engine: 30T/40T
Join Date: Oct 2011
Posts: 1,433
Has anybody touched a nuclear sub?
__________________
mister p is offline   Reply With Quote
Old 09 July 2013, 21:39   #31
Member
 
HughN's Avatar
 
Country: UK - England
Town: Littlehampton, W Sx
Length: no boat
MMSI: 235101591
Join Date: Jan 2012
Posts: 732
When I was at university we had a guest lecturer who was quite elderly and had seen life at Rolls Royce from Merlins to the RB211 and beyond. A 'proper' engineer with a cardigan, a pipe and glasses with thick black frames, on more than one occasion He said that that when they were sent the drawings for the Merlin, Packard replied that that they couldn't make an engine like that. Puffed up at their superior engineering, RR asked why not. The reply from Packard was that the tolerances were far too large and they would have to re-tool!

In 1990 I was privileged to be given a tour of this beast. 'Cool' but somewhat agricultural, I remember it most for the milk-bottle crates full of Vodka bottles to see the crew through a week in Farnborough!

__________________
"Can ye model it? For if ye can, ye understand it, and if ye canna, ye dinna!" - Lord kelvin
HughN is offline   Reply With Quote
Old 09 July 2013, 21:43   #32
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Quote:
Originally Posted by mister p View Post
Don't think anybody has ever seen one flying.
SR-71? Saw one do a flyby at the Beale AFB airshow about 20 years ago.

jky
__________________
jyasaki is offline   Reply With Quote
Old 09 July 2013, 21:43   #33
Member
 
mister p's Avatar
 
Country: UK - England
Town: LONDON
Make: SR4/ZODIAC/3D
Length: 4m +
Engine: 30T/40T
Join Date: Oct 2011
Posts: 1,433
Week? You mean morning.
Cool plane though, anything that does what it does is fantastic..........bring on the Hercules. Still buzzing Swindon with little "ants with mushrooms" falling out.......leaving a plume of exhaust only a vulcan could better.
__________________
mister p is offline   Reply With Quote
Old 09 July 2013, 21:44   #34
Member
 
mister p's Avatar
 
Country: UK - England
Town: LONDON
Make: SR4/ZODIAC/3D
Length: 4m +
Engine: 30T/40T
Join Date: Oct 2011
Posts: 1,433
Quote:
Originally Posted by jyasaki View Post
SR-71? Saw one do a flyby at the Beale AFB airshow about 20 years ago.

jky
Couldn't have.
__________________
mister p is offline   Reply With Quote
Old 09 July 2013, 21:50   #35
Member
 
HughN's Avatar
 
Country: UK - England
Town: Littlehampton, W Sx
Length: no boat
MMSI: 235101591
Join Date: Jan 2012
Posts: 732
Quote:
Originally Posted by mister p View Post
Couldn't have.
Better than the B-2 'Spirit' that flew all the way across the Atlantic and back for a display at Farnborough airshow - except they performed the display over Blackbushe Aerodrome a few miles away, to the bemusement of several thousand spectators at Farnborough....

All they had to do was follow the M3!
__________________
"Can ye model it? For if ye can, ye understand it, and if ye canna, ye dinna!" - Lord kelvin
HughN is offline   Reply With Quote
Old 09 July 2013, 21:52   #36
Member
 
mister p's Avatar
 
Country: UK - England
Town: LONDON
Make: SR4/ZODIAC/3D
Length: 4m +
Engine: 30T/40T
Join Date: Oct 2011
Posts: 1,433
Or maybe they did but were "cloaked"?
__________________
mister p is offline   Reply With Quote
Old 09 July 2013, 21:56   #37
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Quote:
Originally Posted by mister p View Post
Couldn't have.
Why is that, mister_p?

I certainly remember sitting in the hundred degree heat waiting for it to go by.

jky
__________________
jyasaki is offline   Reply With Quote
Old 09 July 2013, 21:59   #38
Member
 
mister p's Avatar
 
Country: UK - England
Town: LONDON
Make: SR4/ZODIAC/3D
Length: 4m +
Engine: 30T/40T
Join Date: Oct 2011
Posts: 1,433
Quote:
Originally Posted by jyasaki View Post
Why is that, mister_p?

I certainly remember sitting in the hundred degree heat waiting for it to go by.

jky
Are you sure it was "it"?

There's a lot that goes on with this stealth business..........a hologram maybe.

But now that you mention the 100 degree heat.............
__________________
mister p is offline   Reply With Quote
Old 09 July 2013, 22:01   #39
Member
 
JamesF's Avatar
 
Country: UK - England
Town: Sidmouth
Boat name: Various
Make: Avon, Ribcraft
Length: 4m +
Engine: Mercury 40, Honda 50
Join Date: Nov 2012
Posts: 266
Stealth features on an SR-71?
__________________
JamesF is offline   Reply With Quote
Old 09 July 2013, 22:12   #40
Member
 
mister p's Avatar
 
Country: UK - England
Town: LONDON
Make: SR4/ZODIAC/3D
Length: 4m +
Engine: 30T/40T
Join Date: Oct 2011
Posts: 1,433
Black paint.......can't see anything that's painted black. Right?
__________________
mister p is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




All times are GMT. The time now is 15:48.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.