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PFSamwise
01-11-2005, 07:26 PM
According to infomation page on P51 (in view objects) the Mustang should reach a speed of 706kph at 7,620 meters but I've tried and tried and tried on and offline; however, I can't get even close to that. I've trimmed the plane, tried different fuel settings, prop pitch settings, cowling, WEP on of course, but I can't get close to it. From other sites mustang speed should be very fast up high.

http://www.zenoswarbirdvideos.com/P-51.html
says 448 mph (721km/h) (clean)

http://www.mustangsmustangs.net/p-51/p51specs.shtml
439mph @ 25k ft C model

http://www.icon.co.za/~pauljnr/specs1.htm
439mph @ 25k ft

These sites differ slightly, but all of them have high speeds for the mustang. Has anyone been able to achieve anything even close? Most I got was 320 mph at 25K ft. Anyone know why the huge cut in performance on the game?

LeadSpitter_
01-11-2005, 07:51 PM
you have to use the IAS indicated airspeed to TAS true air speed chart which is on disk2 in pdf.

click here for IAS-TAS chart
http://img.photobucket.com/albums/v43/leadspitter/IASTAS.jpg

Still alot of aircraft in game will not reach their govs aviation wwii data record charts speeds on roll climb dive and SL speed to 10,000m all alts USN planes zekes p38 p47 51 p40s doras spits. Some ac with 25 fuel have 100% fuel turn times becuase of clueless whines etc. Don't let it get you down its how this game is and always been.

All aircraft with a a hugh hieght advantage and bnz tactics can kill any other ac with a low alt advantage many feel the same way. But the majority here will call you a whiner right off the bat.

WUAF_Badsight
01-11-2005, 09:20 PM
in AEP the Mustang was denied 20 Kph top speed

is fixed in PF (only just)

20 kph on 700 is a mere 3.5-ish percent tho , this sim is quite a accurate sim in many ways

BBB_Hyperion
01-11-2005, 10:47 PM
www.butcherbirds.de/hypesstorage/p51topspeed.zip (http://www.butcherbirds.de/hypesstorage/p51topspeed.zip)

About 704 i got . Wait for speed decreasing when looking at track.

PFSamwise
01-13-2005, 07:22 PM
I normally fly showing mph and feet rather than using the metric system; much easier for me since I'm not as used to the metric system. But nevertheless, I've tried everything I can think of and I top out at about 310 mph on the speed bar using trim and WEP. Of course it's common for me to get outran by a KI-84 with shows a much lower top speed, but at it's own best altitude not the mustang's best altitude. Was just wondering if anyone had the same problem. Of course I can dive a bit to reach much higher speeds, but they don't hold for long on level flight at best alt.

ZG77_Lignite
01-13-2005, 11:12 PM
Samwise, I think you are missing a critical component here (stated by Leadspitter above). What you are reading is Indicated Air Speed (IAS), shown on the red 'speedbar' and cockpit guages. The speeds you are stating (from websites etc) are True Air Speeds (TAS). IAS must be converted to TAS, or turn of cockpit (no-cockpit view, sorry, not sure key, check control assignments) to see True Air Speed.

I find the Mustang to be VERY fast, at all altitudes, one of the most dangerous opponents for my FW190 in the game, imho.

FatBoyHK
01-13-2005, 11:41 PM
remember to trim your mustang properly. Trim the rudder first (11 clicks to the right when using WEP), then compensate it with aerilon trimed to the left. Finally trim the elevator.

Of course you need to close the rad too.

WUAF_Badsight
01-13-2005, 11:59 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by PFSamwise:
I normally fly showing mph and feet rather than using the metric system; much easier for me since I'm not as used to the metric system. But nevertheless, I've tried everything I can think of and I top out at about 310 mph on the speed bar using trim and WEP. <HR></BLOCKQUOTE>

http://img.photobucket.com/albums/v486/robban75/MustangSLspeed.jpg

600 on the deck nearly & 700 at 7K

pretty fast no ?

F19_Ob
01-14-2005, 03:34 AM
The speed is indeed good in the p51 but the accelleration is slow if u compare with a 109 (as in real life), So it will take a while to reach the top speed.
Real p51d pilots joked it took half the english channel to reach their designated altitude.
P51 were left behind by p38's and mosquitos in the accelleration stage but performed very well with speed and high compared to most others.
So a messers biggest concern is to get u as slow as possible because of the p51 poorer handling at slow speed and the accelleration ofcourse.

cheers

tigertalon
01-14-2005, 09:14 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>
Real p51d pilots joked it took half the english channel to reach their designated altitude.
cheers <HR></BLOCKQUOTE>

Wow, they must have been pretty fast, as Channel is not that wide... Well, they joked that they needed half of the way to Germany to get to designated altitude.

VW-IceFire
01-14-2005, 02:12 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by PFSamwise:
I normally fly showing mph and feet rather than using the metric system; much easier for me since I'm not as used to the metric system. But nevertheless, I've tried everything I can think of and I top out at about 310 mph on the speed bar using trim and WEP. Of course it's common for me to get outran by a KI-84 with shows a much lower top speed, but at it's own best altitude not the mustang's best altitude. Was just wondering if anyone had the same problem. Of course I can dive a bit to reach much higher speeds, but they don't hold for long on level flight at best alt. <HR></BLOCKQUOTE>
See Leadspitters chart. The in cockpit speedometer and and speedbar (red numbers in lower left) are in indicated air speed. This is the air traveling past the plane. The virtual cockpit view (see Badsights post) shows the True Air Speed.

Simply: Your speed at 20,000 feet may indicate less but infact mean that you are covering more distance on a map. Its physics, air pressure, and whatnot. Common thing to mistake, we've all done it at least once http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif

LStarosta
01-14-2005, 03:18 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by FatBoyHK:
remember to trim your mustang properly. Trim the rudder first (11 clicks to the right when using WEP), then compensate it with aerilon trimed to the left. Finally trim the elevator.

Of course you need to close the rad too. <HR></BLOCKQUOTE>

For someone who was convinced two weeks ago that trim was an expendable luxury, you sure do a lot of trimming... Personally, I think that is a little much!

FatBoyHK
01-14-2005, 03:57 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by LStarosta:
For someone who was convinced two weeks ago that trim was an expendable luxury, you sure do a lot of trimming... Personally, I think that is a little much! <HR></BLOCKQUOTE>

lol Starosta, actually I need to thanks for your hint and tips http://forums.ubi.com/images/smilies/11.gif. otherwise I would still think trims are useless, lol, stupid me http://forums.ubi.com/images/smilies/35.gif

harryklein66
01-14-2005, 04:14 PM
I don't know this thing is as fast as my 190 on the deck http://forums.ubi.com/images/smilies/cry.gif... http://forums.ubi.com/groupee_common/emoticons/icon_frown.gif

PFSamwise
01-14-2005, 07:06 PM
Which is it? I've always understood the red speedbar to show true airspeed. As you can see from the picture posted by Badsight, the speedbar shows 570kph while the speed indicator shows 595. I do know that the difference between true speed and indicated speed increases the higher you go, and when I fly high the gauge reads much different from the speedbar. I don't think both are indicated, and I know the gauge doesn't show true speed.

ColoradoBBQ
01-15-2005, 02:25 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by PFSamwise:
Which is it? I've always understood the red speedbar to show true airspeed. As you can see from the picture posted by Badsight, the speedbar shows 570kph while the speed indicator shows 595. I do know that the difference between true speed and indicated speed increases the higher you go, and when I fly high the gauge reads much different from the speedbar. I don't think both are indicated, and I know the gauge doesn't show true speed. <HR></BLOCKQUOTE>

The speedbar displays only the indicated speed, not the true airspeed. The gauge does display true airspeeds.