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FM/DM threads Everything about FM/DM in CoD

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  #1  
Old 06-15-2011, 06:54 PM
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VO101_Tom VO101_Tom is offline
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Originally Posted by TomcatViP View Post
@VO101_Tom : Nice found but I am sry this argument is not valid. Any Army makes the circulation of Info a strategical issue : you are flying in a fighter -> you get all the info cleared for your security level regarding that type of fighter.

It does not mean that they all hve used the famous 100oct

But As I hve alry said : let's give them their Barracuda engines that years of stupid mods can get a justification (and spare my own free time)
If was used continuously the 12lbs boost, and the engine was ruined continuously, it does not interest, if COD makes the same one.
If I misunderstood it, then excuse me, but the object of the debate in the other topic, that the 12 lbs were useful without the damaging of engine - from what it follows, that let COD not take it into consideration...
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  #2  
Old 06-15-2011, 07:24 PM
Kurfürst Kurfürst is offline
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Buzzsaw, apart from your usual tirades and various lies about my person,

A, can you produce even a single primary document saying all of Fighter Command using 100 octane fuel and 100 octane fuel only?
B, can you explain, that if FC would use only 100 octane fuel, why do 87 octane issues suddenly rise at the moment Fighter Command is flying more operational sorties?

Should you be able to do so, I may be able to take you seriously.
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Last edited by Kurfürst; 06-15-2011 at 07:27 PM.
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  #3  
Old 06-15-2011, 07:42 PM
Seadog Seadog is offline
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Originally Posted by Kurfürst View Post
B, can you explain, that if FC would use only 100 octane fuel, why do 87 octane issues suddenly rise at the moment Fighter Command is flying more operational sorties?
Because 87 octane is being used by Coastal Command, Bomber Command, RN, OTU and flight training units, all of whom will increase their activities during periods of good weather, which was when the Luftwaffe also increased it's activity over Britain.
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Old 06-16-2011, 02:35 PM
Kurfürst Kurfürst is offline
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Originally Posted by Kurfürst View Post
Buzzsaw, apart from your usual tirades and various lies about my person,

A, can you produce even a single primary document saying all of Fighter Command using 100 octane fuel and 100 octane fuel only?
B, can you explain, that if FC would use only 100 octane fuel, why do 87 octane issues suddenly rise at the moment Fighter Command is flying more operational sorties?

Should you be able to do so, I may be able to take you seriously.

Quote:
Originally Posted by Buzzsaw

....

I guess nobody here can take you seriously, then.
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  #5  
Old 06-16-2011, 02:58 PM
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Crumpp Crumpp is offline
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Quote:
the 12 lbs were useful without the damaging of engine
Geez....

You people are still debating this? Where is the common sense?

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  #6  
Old 06-16-2011, 11:36 PM
TomcatViP TomcatViP is offline
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Originally Posted by Crumpp View Post
Geez....

You people are still debating this? Where is the common sense?

There is too much things that does not match
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  #7  
Old 06-17-2011, 12:39 AM
Blackdog_kt Blackdog_kt is offline
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Originally Posted by *Buzzsaw* View Post
Salute

but as you say, only in the outside wing tanks, and only for takeoff.
Not really, what i said was indeed "only in outboard tanks" but it is far from saying "only for takeoff": unless they were planning a one-way trip they would have to burn that 100 octane on the return leg of the sortie as it was the only supply available to them after the inboard tanks had gone dry

What i previously described amounts to "on takeoff and half of the cruise portion of the flight", which is half the fuel burn for the sortie.

In other words, quite a lot of 100 octane fuel in case of long range sorties and as low as none at all in short range sorties (unless they were bending the rules and carrying a few minutes worth of it to get better WEP boost values in case of trouble, but that would be a negligible amount).

In conclusion, if the Blenheims generated enough sorties at long ranges or were routinely tasked with loitering around a certain area on patrol duty (eg, U-boats, reconnaissance, etc), they could account for quite a lot of 100 octane use. If on the other hand they were mostly flying cross-Channel hops in nuisance raids, they would mostly burn 87 octane.

Until someone can produce a relevant document that deals with the amount, type and range/duration of their sorties during the BoB the argument can swing either way
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  #8  
Old 06-17-2011, 04:18 AM
Kurfürst Kurfürst is offline
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This might prove relevant:


"the Bomber Stations concerned was practically complete (these Stations are Wyton Watton, Wattisham, West Rayham)"

http://www.ww2aircraft.net/forum/att...ng-minute-.jpg

Quite clearly only four Bomber/Blenheim bases were 'concerned' with 100 octane fuel. If those four stations held all Blenheim Squadrons, your claim may be true, but somehow I doubt it.

Wyton had two Blenheim Squadrons at the time: Nos. 15 and 40
"In December 1939, both Wyton squadrons were sent to France and Nos. 15 and 40 Squadrons returned from the Continent to Wyton, the first step in converting Battle squadrons to Blenheims. Both squadrons flew their first bombing raids from Wyton on May 10, 1940 against targets in the Low Countries. The Blenheims of No. 57 Squadron were based briefly at Wyton in June before going south, returning for two weeks the following month before flying north only to appear again at Wyton in late October. "

Wattisham had also two, Nos. 107 and 110 Squadrons http://www.raf.mod.uk/bombercommand/s30.html
http://www.raf.mod.uk/bombercommand/s106.html

Watton also had two Blenheim Squadrons: Nos.21 and 82 Squadrons
http://www.raf.mod.uk/bombercommand/s31.html

West Rayham had only one Blenheim Squadron, No. 139, and possibly from June 1940 also no. 18 also operating.

That's 7 or more like 8 Blenheim Squadrons on 100 octane. At that time there were 15 Bomber Command Sqns. operating Blenheim IVs. But this pretty much explains where 100 octane fuel went in such quantities - even those 8 Blenheim Squadrons were consuming a lot. Total tankage was 468 imp. gallons compared to 85 gallons on the Spit - a worth of about 45 Fighter Squadrons..
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  #9  
Old 06-16-2011, 05:15 PM
Seadog Seadog is offline
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Quote:
Originally Posted by Kurfürst View Post
A, can you produce even a single primary document saying all of Fighter Command using 100 octane fuel and 100 octane fuel only?
B, can you explain, that if FC would use only 100 octane fuel, why do 87 octane issues suddenly rise at the moment Fighter Command is flying more operational sorties?
We know that the RAF was using vast amounts of 100 octane fuel. If RAFFC wasn't using it, who was? You have never produced a single document stating that some of RAFFC was still using 87 octane and the burden of proof is upon you.

Flight activity of all kinds will increase with good weather. This is such a simple concept, that it will be instantly apparent to almost everyone.



The RAFFC flew 5700 sorties and the RAF issued about 4500 tons of 100 octane fuel during the 1st week of September. 5700 sorties at 75 gallons per sortie = 427500 gallons or 1374 tons (assuming every fighter does a dead stick landing with empty tanks, it only rises to 1650 tons). This leaves more than 3000 tons for use in RAFBC and all other assorted and sundry users, more than enough for every twin engined Merlin bomber and fighter to be using 100 octane fuel and still leave lots left over for use by RAFFC.
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Old 06-17-2011, 03:43 PM
Kurfürst Kurfürst is offline
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[QUOTE=Seadog;298133]We know that the RAF was using vast amounts of 100 octane fuel.

5-10 000 tons a month - out of 50 000 tons total per months or compared to about 90 000 tons per month consumed by the Luftwaffe is hardly 'vast amounts'.
Its a tiny amount, even compared to 1940 overall or later RAF consumption.


Quote:
Originally Posted by Seadog View Post
If RAFFC wasn't using it, who was?
Bomber Command (at least 8 Squadrons of Blenheims for example), engine manufacturers for running ins and testing, Squadrons for non-operational flying and practice. One Squadron in August 1940 for example did

Quote:
Originally Posted by Seadog View Post
You have never produced a single document stating that some of RAFFC was still using 87 octane and the burden of proof is upon you.

Of course I did. Ironically, just two posts above. Besides yo simply display the logical fellacy of the Invisible Pink Unicorn: you seem to believe that if you claim something, without being capable proving it, and if others don't prove you wrong, you are automatically right. Right? Well, its just utter nonsense. See: http://en.wikipedia.org/wiki/Invisible_Pink_Unicorn

All Figther Command Aircraft were operating on 87 octane previously; in March 1939 a decision was made to convert sixteen fighter Squadrons to 100 octane by September 1940, and in around May 1940 it was noted that 'certain' fighter squadrons were to be supplied with 100 octane fuel.

Certain, not all. Well its not too hard figure out what the other-than-certain Fighter Squadrons were still running on, my dear Watson?



Quote:
The RAFFC flew 5700 sorties and the RAF issued about 4500 tons of 100 octane fuel during the 1st week of September. 5700 sorties at 75 gallons per sortie = 427500 gallons or 1374 tons (assuming every fighter does a dead stick landing with empty tanks, it only rises to 1650 tons). This leaves more than 3000 tons for use in RAFBC and all other assorted and sundry users, more than enough for every twin engined Merlin bomber and fighter to be using 100 octane fuel and still leave lots left over for use by RAFFC.
That's an interesting claim. Can you tell me how much 100 octane was spent on operational training, engine testing, run-in, was used up by Bomber Command's Blenheims etc..? Without that, your calculation is an extremely crude and wishful example..
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Il-2Bugtracker: Feature #200: Missing 100 octane subtypes of Bf 109E and Bf 110C http://www.il2bugtracker.com/issues/200
Il-2Bugtracker: Bug #415: Spitfire Mk I, Ia, and Mk II: Stability and Control http://www.il2bugtracker.com/issues/415

Kurfürst - Your resource site on Bf 109 performance! http://kurfurst.org
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