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TIP STALLS And FLIGHT MODEL ISSUES


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Hi, Welcome to DCS, If you are having trouble in turns, first check a few things. I am not sure which P-51 you are flying, the TF-51 or the P-51 with weapons, so make sure to check the control settings page that it is set to "P-51 real" then set about a 30 curve on the pitch and roll axis. you can change them again easily. then be sure to delete any multiple mappings, DCS has a habit of mapping several things to one map item, so that can be a problem to. also check that take off assist and rudder assist are off. I don't know how experienced you are, and it really doesn't really matter that much, they seem to fight against your inputs and create more problems than they fix. once you have that all set, try a light Mustang, about 30-40% fuel, and just fly and get the feel. be easy on the stick, it really responds to slight inputs, so be gentle. then practice coordinated turns keeping the plane level, ball centered, constant speed and altitude. The thing about DCS is , Trust me, The FM is designed and approved by actual P-51 pilots, and is the best P-51 sim out there, is it perfect? no. But it is still the closest to the real thing. I hope this helps, and let us know how you make out

We are Virtual Pilots, a growing International Squad of pilots, we fly Allies in WWII and Red Force in Korea and Modern combat. We are recruiting like minded people of all Nationalities and skill levels.



http://virtual-pilots.com/

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6 ore fa, Andy1966 ha scritto:

Hi, Welcome to DCS, If you are having trouble in turns, first check a few things. I am not sure which P-51 you are flying, the TF-51 or the P-51 with weapons, so make sure to check the control settings page that it is set to "P-51 real" then set about a 30 curve on the pitch and roll axis. you can change them again easily. then be sure to delete any multiple mappings, DCS has a habit of mapping several things to one map item, so that can be a problem to. also check that take off assist and rudder assist are off. I don't know how experienced you are, and it really doesn't really matter that much, they seem to fight against your inputs and create more problems than they fix. once you have that all set, try a light Mustang, about 30-40% fuel, and just fly and get the feel. be easy on the stick, it really responds to slight inputs, so be gentle. then practice coordinated turns keeping the plane level, ball centered, constant speed and altitude. The thing about DCS is , Trust me, The FM is designed and approved by actual P-51 pilots, and is the best P-51 sim out there, is it perfect? no. But it is still the closest to the real thing. I hope this helps, and let us know how you make out

Thank you for your answer. I fly the normal P-51, with guns, not the two seater trainer. I already use a curve, what exactly is multiple mapping?

 

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 Hi, some times DCS will map multiple controllers to a single function, therefore, it is a good idea to remove any duplicates because you can move a switch or control and not even know  you dtd it.

We are Virtual Pilots, a growing International Squad of pilots, we fly Allies in WWII and Red Force in Korea and Modern combat. We are recruiting like minded people of all Nationalities and skill levels.



http://virtual-pilots.com/

[sIGPIC][/sIGPIC]

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I fly with a 20cm stick extension and find the tip stalls to still be excessive in the Mustang, and the topic has come up in the past. The biggest factor is the lack of feedback telling the virtual pilot s/he is on the edge of a tip stall. There is a visible buffet effect, but it is subtle and, in certain FOV or situations (VR, zoomed in, eyes padlocked on bandit) you can't even see the canopy frame at all, much less the buffet animation. This makes it easy to tip stall and feel that it developed without warning.

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6 ore fa, Andy1966 ha scritto:

 Hi, some times DCS will map multiple controllers to a single function, therefore, it is a good idea to remove any duplicates because you can move a switch or control and not even know  you dtd it.

oh no I don't have any of that. nut i just completed a pre-made mission in marianas map with a P-51 which was probably very light on fuel and it was very maneuverable

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31 minutes ago, Nealius said:

Wing stall. They're exceptionally bad at high altidue where the slightest bit of aft stick will induce them. At lower altitudes I rarely encounter them.

 

All airplanes are very susceptible to stall at high altitude. The definition of “coffin corner” is the small difference in maximum airspeed and stalling speed at high altitude. 
 

Since stall speed increases at the square root of the G applied, it is very easy to induce a high altitude aerodynamic stall. Dog fights at high altitude are very careful, slow motion affairs. 

Without the specifics of a particular event, it isn’t possible to say if the high altitude stall of the DCS P-51 is accurate but given an altitude and surface temperature it is pretty easy to ballpark what sort of stall performance is to be expected. 

Above 30K ft. I would expect no more than 3 G with that probably on the high side and inversely proportional to altitude.

 


Edited by =475FG= Dawger
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There's high speed and slow speed stalls. The low speed stalls can be avoided by never turning at speed slower than 150mph.

High speed stalls are avoided by never turning hard at all at some altitude.

Also using rudder is a must on both the P47 and P51.

I'm very very very far from a good P51 driver. But here I'm zooming about at 300-400mph at angles 25-30, mostly in control. 

 

i7 13700k @5.2ghz, GTX 3090, 64Gig ram 4800mhz DDR5, M2 drive.

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At high alt, high mach number decrease wing lift too with addition to low IAS, pilot has to fly very carefully.


Edited by grafspee
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System specs: I7 14700KF, Gigabyte Z790 Aorus Elite, 64GB DDR4 3600MHz, Gigabyte RTX 4090,Win 11, 48" OLED LG TV + 42" LG LED monitor

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On 1/1/2023 at 11:55 PM, Gunfreak said:

But here I'm zooming about at 300-400mph at angles 25-30, mostly in control. 

How are you getting so fast at that altitude? With both RPM and throttle full forward I top out at 250mph, sometimes 230 in level flight above 20k feet. I seem to be stuck at that speed in the Mustang, Spit, and Jug for whatever reason.


Edited by Nealius
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16 minutes ago, Nealius said:

How are you getting so fast at that altitude? With both RPM and throttle full forward I top out at 250mph, sometimes 230 in level flight above 20k feet. I seem to be stuck at that speed in the Mustang, Spit, and Jug for whatever reason.

 

Well, the first thing is that 250mph at 25k feet is actually closer to 375 mph in true airspeed.  So will quite fast. 

At 290ish mph at 25 000 feet you are at around 440mph true airspeed so around maximum speed.

I get higher speeds because  of the dive and retain some speed. I'm hard pressed getting over 250 in the straight without a dive.

i7 13700k @5.2ghz, GTX 3090, 64Gig ram 4800mhz DDR5, M2 drive.

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