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I dont understand, Maybe I missed something but I am constantly getting really low climbouts. I mean im fiting for 1000 fpm at the said 170mph with that prop setting.

Not sure what the heck is going on.

I have my cowl flaps open with oil dilutor off mags on both. oil cooler open and intercooler open. gear up flaps up. I can even manuever for a loop without the engine overheating. not sure. doesnt seem like fighter behaviour. Im not expecting it to shoot through the air but is sure is doggy. take me about 40 minutes or so to get up to 30k feet.

any tips please. I am running accusim also.

Jerry D. Witt III

What manifold pressures are you running?

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A2A Simulations Inc.

well first I run it down to 42 just like the manual says but then it starts getting slow i can hardly keep the 170mph so I pump it up to 50. Ive noticed the cowl flaps have a TON of drag on the plane. Im just wondering cause according to the books this baby should be hitting over 400 mph at cruise altitude and at full power at about 6,000 msl im getting about 299mph or so, and im very lucky if I get 300mph at cruise alt. forget that if I have the tanks hangin out lol.

It's a battle between drag and cooling. Keep your speeds up and use, less than 50% cowl flaps. The flow through the cowl flaps is not linear, it's exponential, meaning you gain little extra cooling say past 50%. I would open them 33%, keep intercooler and oil cooler flaps neutral, and run the max climb pressure at a higher climb airspeed. I've been flying the Spitfire a lot lately, and am not up to date on the climb speeds of the 47. I think I need to take her up for a spin tomorrow and do some touch and go's to get current again.

Scott.

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A2A Simulations Inc.

Don't quote me on this, but I recall seeing vintage airspeed conversion charts where at higher altitudes your ground speed is actually faster than what the airspeed indicator is reading. This could account for the 400 mph you think you should be achieving?

As for the FSX model, all I can suggest (besides Scott's advice on drag) is to be sure that 'auto-mixture' is disabled in your realism settings. Otherwise, your plane will lumber along with decreased power. Also, are you using the higher octane fuel?

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I like Thunderbolts! (Link to MySpace tribute page)


120th Fighter Wing, Montana Air National Guard

Higher octane fuel? mmm I have no idea what that is. It is a battle between drag and cooling I guess. And yes I am using my ground speed as reference and not my airspeed. TAS is what I go by really. tell me more about the High octane fuel deal. I also have my auto mixture deactivated. I am enjoying this aircraft a lot. I am getting better climbouts with the 30 percent cowl flaps. ive just really had to learn this airplane I guess. I appreciate the help on these forums.

I'm on vacation and I don't have my FSX computer with me, so I might be incorrectly remembering that there are two fuel octanes you can choose for the P-47. (The B-17G, for example, does have this option.) I think the toggle is in the loadout menu where you select the ordnance and add fuel to your tanks -- Shift+F4? Anyhow, the options should be for either 90 or 100 octane with the lower octane representing what stateside pilots trained with before going overseas because the higher octane was precious and reserved for the war effort.

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I like Thunderbolts! (Link to MySpace tribute page)


120th Fighter Wing, Montana Air National Guard

Well, looking after looking at my old screenshots it appears that there is only one octane rating offered for the P-47. Multiple fuel octanes was probably a new feature introduced by the B-17G which was released after the A2A Simulations WoP3 'Razorback' Thunderbolt.

Sorry, I also need to refamiliarize myself with the Thunderbolt...

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I like Thunderbolts! (Link to MySpace tribute page)


120th Fighter Wing, Montana Air National Guard

hehe. thats ok. you got me all excited! i thought I was missing the high octane but no... thats ok. one reason I might be getting pretty bad performance is because im usually taking off at around 6500 feet msl. sea level actually performs pretty nice.

Greetings RareBear,

I too have the same issue. I love flying this bird, but have shallow climb outs. I am glad I took a gander at this post as I just learned about the exponential air flow of the cowl flaps. I am going to give it a try.

On another subject, would you like to try a multiplayer session with the P47? Just respond here of PM me.

Edit: By the way, if we do multiplayer, I want to try normal climb outs, and fully loaded. Right now I struggle with any weight beyond main and aux tanks filled. I also want to practice landings. I am getting better, but too easy to get into a situation below the glide slope. I just need practice. The sticky forum post describing the procedure was very helpful. Okay all for now.

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-Todd, aka Zoolander64
Staff Member at DigitalThemePark
Connect TeamSpeak to ts3.digitalthemepark.com

Greetings again RareBear,

Setting the cowl flaps to 33% on takeoff worked fantastic. That was the trick. I had both main and aux filled 100% and had no issues. Tomorrow I will test with external tanks. Really load that bird up with weight. I appreciate the recommendation that was made by Scott.

RareBear, when you are ready let's give is bird a try in a MP session.

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-Todd, aka Zoolander64
Staff Member at DigitalThemePark
Connect TeamSpeak to ts3.digitalthemepark.com

Sorry I havent replied in sooooo long. I moved homes and stuff. I have now gotten pretty good with the 47. its pretty much just learning the aircraft. I can get up to 20 thousand in no time. I usually take off with less than 40% I leave both cowls for the oil and cooler neutral. I make sure ive always got tons of ADI and once airborne I usually pull the prop back with higher Manifold Pressure and just keep an eye on the EGT and CHT. Seems to do pretty good. I cant imagine it being THIS hard to manag in real life. seems like crews would messing up engines all the time being concentrated in the attack rather than the engine. if it was my hats off to them!