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Subject: How to judge what the best fighter plane is?
45-Shooter    1/3/2013 5:09:26 PM
I would list the following traits in the order of their importance; 1. Cruising speed under combat conditions. 2. Range/Persistence under combat conditions. 3. Flight qualities, specifically the ability to point the nose at the target easily and a very high rate of roll. 4. CL Guns with high MV/BC and rates of fire. 5. Pitch response, IE the rate at which you can load the plane. 6. Climb at Military Power. In WW-II terms, that means ~75-80% throttle, rich mixture and appropriate pitch on the prop.( A setting that can be held for at least 30 minutes!) 7. Top speed! To escape or run down the target. 8. Lastly the ability to turn in the so called "Dog Fight"! After you rate these choices, I'll mark the list with what I think is the strength of each atribute.
 
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45-Shooter       1/28/2013 5:53:26 PM

The orginial point was that the example Shooter used (that of a conventional standard car engine) was invalid and a better comparison would be a F1 engine but then he started with incorrect statements about that and so on and so on (keep going till you reach old age or your fingers drop off)
it irratates me when he passes his opinion or assumption off as factual 9especially when it would only take 30 seconds to look it up)



It would be nice if you would explain why a modern car engine is not equivilant to an antique aircraft engine?
Just a few points to concider;

1. My Dodge Intrepid 3.5 has 252 HP from a V-6 with 96 MM bore. That is 0.580 HP/Cm^2 and 3518 CCM.

2. A common inline engine of the time that was expected to last over 400 hours in a comertial plane made 685 HP in the Last Kestral-V from 12 127 MM Bores for 0.451 HP/CM^2 and 21,240 CCM.

3. Given that may of these old Dodges are still running with many more than 100,000 miles on them, some with very hard use paterns like my two with 126,000 and 185,000 makes my point! PS. The SFC of that engine at full chat is 0.326.

Can you name any aero-engine from WW-II that would last 2-3,000 hours WO over haul and still make that kind of power and SFC?

PS. it only weighs 348 pounds for 1.365 pounds per HP. And on 87 Octane gas! 

A second comp would be the first Gen Merlin at 1030 HP on 87 Octane gas?
Numbers are 1,773.1 CM^2, 26,951 CCM, 1,535 pounds, IIRC? dOES NOT LOOK GOOD DOES IT?

 
 
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Belisarius1234    I don't have to prove my bona fides    1/28/2013 11:12:05 PM
to the ignorant, such as you proved to be.
 
Separation, extension, break, and reverse are terms you would NOT know the true meaning of. 
 
Those who can read can SEE what I know.
 
B.



 



B



 



I was just asking if you knew the three most important deffense Vs guns tactics of WW-II or not?
Well do you?
 
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Belisarius1234    To you, Shooter.    1/28/2013 11:21:02 PM
We can add inability to follow an argument, to the sums of ignorance about subject on display.
 
OBNW was politely telling you TO BACK YOUR BOASTS as you have vainly tried to get me to do.
 
You can decline, but then the COMPLETE NONSENSE you've posted for TWO years would condemn you, Stuart. You would have NO DEFENSE.
 
So put up; or let your past posts exhibit what you truly know. which apparently is nothing about race-cars and aviation. I freely up front told OBNW I was ignorant of racing, but even I know enough to call you on it and CAN PROVE it.
 
For example, why do racers use SLICKS?  I at least know that much.
 
B.









 list your Creds?





 



Why? as nothing I have posted relates to my pesonnel expriance wt difference does it make? You however are posting that you have relavent personnel experiance and are posting that of evidence of your agument, that alone makes it realavent to question said experiance and ask for validating evidence.



 



You cannot rely on "personnel expriance" and then complian when that is questioned you introduced it, it CAN howver be seen that your personnel experiance has been seriously questioned may times and  you have yet to convince a single poster of them being genuine.



 



I could claim to be anything on here and providing the same level of proof you do (none) use that to support my posts , however I do not I question and support my posts with evidence (and admit when I am mistaken) to do anyting else would be dishonest



 



so basically either provide evidence you have done what you claim or STOP using it as supporting evidence to you rubbish because you have NO credibility on here or any other site you have posted on.



 



ps



if you introduce your credibility into a post do not complian when you get it attacked



 



Who is this addressed to?

 
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Belisarius1234    Aspiration circuit, Shooter.    1/28/2013 11:25:12 PM
OBNW understood IMMEDIATELY what I meant when I noted that. Apparently you were too ignorant to understand the simple CONCEPT and difference. It's these simple things that trip you up.
 
B.




The orginial point was that the example Shooter used (that of a conventional standard car engine) was invalid and a better comparison would be a F1 engine but then he started with incorrect statements about that and so on and so on (keep going till you reach old age or your fingers drop off)
 

it irratates me when he passes his opinion or assumption off as factual 9especially when it would only take 30 seconds to look it up)




It would be nice if you would explain why a modern car engine is not equivilant to an antique aircraft engine?
Just a few points to concider;

1. My Dodge Intrepid 3.5 has 252 HP from a V-6 with 96 MM bore. That is 0.580 HP/Cm^2 and 3518 CCM.

2. A common inline engine of the time that was expected to last over 400 hours in a comertial plane made 685 HP in the Last Kestral-V from 12 127 MM Bores for 0.451 HP/CM^2 and 21,240 CCM.

3. Given that may of these old Dodges are still running with many more than 100,000 miles on them, some with very hard use paterns like my two with 126,000 and 185,000 makes my point! PS. The SFC of that engine at full chat is 0.326.

Can you name any aero-engine from WW-II that would last 2-3,000 hours WO over haul and still make that kind of power and SFC?

 

 
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oldbutnotwise       1/29/2013 8:23:45 AM
After you rate these choices, I'll mark the list with what I think is the strength of each atribute. Given that there are eight atributes on this list, and that no-one has chosen to add any more, I will now weight this list as I think things aught to be. Remember that eight catagories means that the AVERAGE is 12.5% Please feel free to change them as you like for the discussian by the rest of us, or just pick my choices all to hell and back! The entire idea is to have a good argument.
1. Cruising speed under combat conditions. 20%
Why is crusing speed a major requirement for a short ranged inteceptor?  you job was to get up hit the bombers and return not hang arround twiddling your thumbs
 
 
2. Range/Persistence under combat conditions. 20%
wrong returning to base with 2/3 of your fuel means that you were ovefueled, both the RAF and Luftwaffe when defending flew with less than full tanks so persistance only comes into play when you change the design requirements (someting that was not early considered)
 
3. Flight qualities, specifically the ability to point the nose at the target easily and a very high rate of roll. 15%
 
Rate of roll? not a biggy the FW 190A had a wonderfull roll yet was outclassed by later aricraft with inferior roll rates, ability to point at the target, surely that is turn ability? something you have down at 8
 
4. CL Guns with high MV/BC and rates of fire. 15%
 
your problem is that you are restricted to what is available, high MV and low RoF for heavier calibler and lack of weight for rifle calibers, and as the prefered choice cannot be centerline mounted you have to compromise with wing guns, however on the plus side wing guns are preferable for pilot with limited training/experiance (both Galand and Hartmann both agreed that wing guns were better for inexperianced pilots and noticed a sharp drop off of hits when said pilots lost ther wing guns)
 
5. Pitch response, IE the rate at which you can load the plane. 10%
 
so pitch is important and turn isnt?
 
6. Climb at Military Power. In WW-II terms, that means ~75-80% throttle, rich mixture and appropriate pitch on the prop.( A setting that can be held for at least 30 minutes!) 10%
 
climb is avery inportant factor in an inteceptor but it has to be sustained climb and not zoom climb by mid 1940 was thier any airforce flying without constant speed props? cetainly the RAF and Luftwaffe wernt
 
7. Top speed! To escape or run down the target. 5%
 
If you are significantly slower the its highly likely that you will be the pey not the hunter
 
8. Lastly the ability to turn in the so called "Dog Fight"! 5%
 
so the ability to evaid if attacked is pretty worthless in your oppinion, says a lot, the turn was the PRIMARY defense against attack yet you  negate it, 80% of kills came from diving atacks from th rear and yet you want to remove  the primary defense? or are you assuming that your aircraft are always going to be the attacker and not have to worry about defendin themselves?
 
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oldbutnotwise       1/29/2013 2:43:51 PM
It would be nice if you would explain why a modern car engine is not equivilant to an antique aircraft engine?
Just a few points to concider;
 
because the engineering is of a different era, a modern F1 engine is cutting edge as was a 1930 aero engine, a car engine is a safe low tech low stress engine if you made a 24lt v12 supercharged engine today and you would be looking at 5000hp+ and would be probably lower stressed than a 1940s one
 
you seem to have problems with time and how one era compairs to another
 
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oldbutnotwise       1/29/2013 3:05:10 PM
ut what power delivery, you say there is no power low down!
I was not talking about power down low, they do not have any, so why bother with traction control. I refer to mid-high to high RPM Bands, where they do have the power to spin the tires.
then explain how they get to that power, they cant spin the tyres and they cant slip the clutch, basically you are stuck in the 70s when a small powerband was the norm, nowadays they have quite wide powerbands and actual tune for lowdown and midrange as this can be big boost in lap times, the renault engine has less power than the Merc or ferrari but has more driveablity
partially right, but mainly beacuse it allowed the driver to floor it and not worry about spinning up the tyres, usually out of slow corers when the revs are low(oh low revs !!) It is not possible for an F-1 car to spin it's huge semi-slick tires at low RPMs!
wrong it is possible to spin the tyres at relativly low revs especially on primes
you are showing your lack of F1 knowledge again, firstly F1 cars use slick tyres not semi slick (which I presume you mean the groved tyres that were done away with years ago)  secondly one of tha main concern of modern day F1 drivers is to avoid wheelspin as it damages the tyres, have a look at last seaon and watch a  car hat has spun off and how easy it spins its wheels to spin it self back facing the right direction
And this changes my point how? The cars spin the tires at higher revs if the driver is not careful.
actually at high revs they are less likely to spin  the tyres than at lower revs, if you watch F1 you will see that they spin them most coming out of slow corners, ie when accelerating from low revs

"Traction Control" was used because the tiny, ultra-high RPM engines make both reves and power so quickly that no driver could control it!

yet they banned it must man (Meen)
 
If you are goning to correct me at least check that your correction is correct, the word is meAn unless you mean a Lebanese Rock band founded by Fouad and Toni Yammine?
 
that no driver finishes an F1 race then
  What?
well you say its because the engines make the power so quickly that no driver could control it, yet traction control is no longer allowed then they cannot be driven!
oh and how  did they managed with 1500hp that was available in the qualifying engine turbo era? as there was no traction control then

Yet these have been shown to be lies before as you claimed a lot of things but could never provide proof, your war record was doubted when you couldnt even describe the base to aledgedly seved at

On here you claimed that you did service, when it was questioned you failed to correctly identify parts of the based you served at, the OP (who did prove his service) disbelieved you and so do I.

Please link to same.
why? you know it and I know it and everyone here knows it
you also claim to have raced cars and have never provided evidence and in fact claimed to have raced yet documents from the period fail to show you in the event!
Please link to same.
no YOU provide link it is your claim it is YOU that wants us to believe these claims are true so far we disbelieve you, can you provide a single poster that believes a word you say?
 
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Belisarius1234       1/29/2013 3:44:09 PM

After scraping out the Stuart crap. let's look at the criteria?

1. Cruising speed under combat conditions. 20%

Why is cruising speed a major requirement for a short ranged inteceptor?  you job was to get up hit the bombers and return not hang arround twiddling your thumbs

I use the term target defense interceptor for a defensive WW II fighter.

 I further subdivide that set of aircraft into area defense and point defense.

I further divide that into day-fighter and night-fighter.

Now what does that mean? Defensive fighters in WW II were highly specialized. That being the case, (four classes) right away we see that Stuart's catalog of terms is bullsh!t. What works for the English Midlands in daylight will not work over central Germany at night.

What Shooter calls cruise speed is what I refine as ENDURANCE ALOFT in minutes at patrol speed and altitude. Each defensive fighter class gives a different weight to that characteristic.

Since OBNW explains it rather well for the point defense target interceptor day fighter that endurance was not so important as rapid climb to merge and engagement, I will note that night fighters and area defense day interceptors needed endurance aloft to cover areas over time more than a point defense target interceptor day fighter.

2. Range/Persistence under combat conditions. 20%

CONSUMMABLES is the proper term.

Wrong returning to base with 2/3 of your fuel means that you were ovefueled, both the RAF and Luftwaffe when defending flew with less than full tanks so persistence only comes into play when you change the design requirements (something that was not early considered)

HMMM.

Fuel, coolant, lube, hudraulics  shooting time in seconds from the guns, onboard oxygen for the pilot, all of that is considered TOGETHER, when you consider what kind of fighter it is and how much weight to give to the characteristic. If you are over your own country and thirty to sixty minutes aloft is all you need per sortie, then those consumables will be metered accordingly. Straight up and down, to replenish. If you are flying six hours area defense and have to patrol against an enemy bomber stream, or have to ESCORT your bomber stream into enemy air-space, then you will have to have everything you need onboard for the complete mission.

[next post.]

 
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Belisarius1234       1/29/2013 3:55:45 PM

3. Flight qualities, specifically the ability to point the nose at the target easily and a very high rate of roll. 15%

 

Rate of roll? not a biggy the FW 190A had a wonderfull roll yet was outclassed by later aricraft with inferior roll rates, ability to point at the target, surely that is turn ability? something you have down at 8

Again this is Stuart ignorant. The AIRCRAFT MANEUVER QUALITY is the combination of plane roll, climb, dive, banked turn flying dynamic characteristics that allow the fighter to point weapons at the engaged enemy target and use those weapons to service that target to destruction.

To that end, the statement GOOD ENOUGH TO SERVICE THE PRIMARY INTENDED TARGET must always be remembered. A Ju-88 night fighter is dead meat in a daylight fight against a Spitfire, but it can handle Lancasters in a bomber stream at night.

4. CL Guns with high MV/BC and rates of fire. 15%

That is just stupid. 

WEAPONS MATCHED TO SERVICE DESIGNATED PRIMARY ENEMY TARGET.

Fighters need rapid fire lightweight machine guns to kill fighters. Fighters need auto-cannon to kill bombers. Guess what area defense night fighters carry? Guess what offensive ESCORT day fighters carry?


your problem is that you are restricted to what is available, high MV and low RoF for heavier caliber and lack of weight for rifle calibers, and as the preferred choice cannot be center-line mounted you have to compromise with wing guns, however on the plus side wing guns are preferable for pilot with limited training/experience (both Galland and Hartmann both agreed that wing guns were better for in-experianced pilots and noticed a sharp drop off of hits when said pilots lost ther wing guns)

THAT's WRONG!

You can't ignore conic dispersion and bullet spread with wing mounted guns. Galland and Hartman were exceptional pilots and average shots who could stay in the saddle at optimum X point (bullet convergence, usually about 150-200 meters in front of the German plane usually the FW-190) for the two or three seconds it took them to walk bullets in. Neither of them had problems with depth perception through a crappy LCOS or simple reflex sight. Average American pilots were NOT that lucky. Get behind, get so close that he fills your canopy and SPRAY him. (Johnson) Claire Chennault had his AVG P-40's X convergence set at 300 FEET!

P-38 pilots, lucky b'tards could set guns and cannon (when it worked) to CBL (center of plane bore line.) All they had to worry about was bullet drop and how to use the P-38 like a sword. They could hit at 500 meters if they were good shots! Average for them was 350 meters.

5. Pitch response, IE the rate at which you can load the plane. 10%

so pitch is important and turn isnt?

Irrelevant separation out of a quality from AMQ.

6. Climb at Military Power. In WW-II terms, that means ~75-80% throttle, rich mixture and appropriate pitch on the prop.( A setting that can be held for at least 30 minutes!) 10%

CLIMB

Climb is a very important factor in an inteceptor but it has to be sustained climb and not zoom climb by mid 1940 was there any air-force flying without constant speed props? Certainly the RAF and Luftwaffe weren't

How many burned out engines and stressed out airframes do you get for that one minute difference?

If you need rapid climb to merge, develop JATO. (Germans and Americans DID for different reasons.)


[next post]


 
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Belisarius1234       1/29/2013 4:03:40 PM

More SHOOTER nonsense.

 

7. Top speed! To escape or run down the target. 5%

TOP ACHIEVABLE SPEED at HIGHEST ALTITUDE.

Speed is life. (Chennault, Thatch, Bong, Gabrewski, Bader, Hartman or any pilot worth listening to.)

 Altitude advantage is POTENTIAL ENERGY ADVANTAGE. Please note that gravity (falling into a dive during an ambush attack) adds to your SPEED from thrust, so you can get in, shoot him and get out quickly.  


If you are significantly slower the its highly likely that you will be the pey not the hunter

8. Lastly the ability to turn in the so called "Dog Fight"! 5%

GET INTO the SADDLE, SHOOT HIM, and GET OUT.

Whether attack or defense, the plane in which the pilot finds that he farts around and wastes time getting into shooting position is a pilot-killer. So that AMQ quality to BREAK and TURN into the enemy to post yourself behind him offset ¼ to 1/3 tangent to his turn or roll to minimize exposure to his enemy gunfire is PARAMOUNT so that you can become the attacker and the enemy becomes the DEAD attackee.

So the ability to evade if attacked is pretty worthless in your opinion, Says a lot, the turn was the PRIMARY defense against attack yet you  negate it, 80% of kills came from diving attacks from the rear and yet you want to remove  the primary defense? or are you assuming that your aircraft are always going to be the attacker and not have to worry about defending themselves?

 Some of these aircraft qualities apply to missile tactics, but they remain paramount to GUN tactics, whatever the era.
 
B.
 

 
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