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Posted

Just almost there but I ran out of fuel :D :joystick:

 

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Posted (edited)

You get the best speed at 40k, you are too high for max speed run. Also you should climb at 1.0M to 45k and then dive at 5 degrees to about 35k and accelerate to around 1.3-1.4M and then climb at 5 degrees to 40k and then accelerate in level flight. This gets you past the transonic drag faster and hence saves fuel for longer acceleration.

Edited by Bushmanni

DCS Finland: Suomalainen DCS yhteisö -- Finnish DCS community

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SF Squadron

Posted

I dig this video out every time this question comes up. :)

 

 

 

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ASUS 2600K 3.8. P8Z68-V. ASUS ROG Strix RTX 2080Ti, RAM 16gb Corsair. M2 NVME 2gb. 2 SSD. 3 HDD. 1 kW ps. X-52. Saitek pedals.


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Posted (edited)
You get the best speed at 40k, you are too high for max speed run. Also you should climb at 1.0M to 45k and then dive at 5 degrees to about 35k and accelerate to around 1.3-1.4M and then climb at 5 degrees to 40k and then accelerate in level flight. This gets you past the transonic drag faster and hence saves fuel for longer acceleration.

 

no he is not.. Mach speeds to relative air speed is higher as you go higher.. if you can't reach m2.5 at 50k ft that means you tried to hard to get up to that height. Once you hit 50k m2.5 it will top out at 2.50X push over to .8g and decend you can hit over m2.6

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Edited by pr1malr8ge

For the WIN

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If your desired effect on the target is making the pilot defecate his pants laughing then you can definitely achieve it with a launch like that.
Posted

i "think" M=2.606 is the absolute max you can get...

 

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i7-4790K | Asus Sabertooth Z97 MkI | 16Gb DDR3 | EVGA GTX 980 | TM Warthog | MFG Crosswind | Panasonic TC-58AX800U

 

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Posted

Yep, 2.606 is the max in-game.

 

Found that out the hard way when I tried chasing down a few Eagles that had unlimited fuel...in a half-fueled Flanker.

Lord of Salt

Posted
Yep, 2.606 is the max in-game.

 

Found that out the hard way when I tried chasing down a few Eagles that had unlimited fuel...in a half-fueled Flanker.

 

What does that mean? :D

AMD 5600X -- Gigabyte RTX 3070 Vision -- 32GB 3600MHz DDR4 -- HP Reverb G2 -- Logitech 3D Extreme Pro -- Thrustmaster TWCS

BRRRT!  Car and aviation enthusiast, gun nut and computer nerd! 🙂

Posted
What does that mean? :D

 

It means that GG and his buddy ran away from me at mach 2.606! :megalol:

 

I was trying to chase him down in a Flanker, but it had something like 60% fuel in it...that didn't work. :D

Lord of Salt

Posted

so we can't hope to have realistic SR-71s and MiG-25s in the future .. :(

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Posted

Why is it 2.606? I recall the eagle achieved M2.7 in a NASA paper. Considering we don't have a realistic damage model, shouldn't we be able to exceed the airframe dynamic pressure constraint?

Posted
Why is it 2.606? I recall the eagle achieved M2.7 in a NASA paper. Considering we don't have a realistic damage model, shouldn't we be able to exceed the airframe dynamic pressure constraint?

it's because someone decided to just put 2.606 as the max number it can achieve.

For the WIN

[sIGPIC][/sIGPIC]

If your desired effect on the target is making the pilot defecate his pants laughing then you can definitely achieve it with a launch like that.
Posted

I would suspect a limitation of the atmosphere sim.

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Reminder: SAM = Speed Bump :D

I used to play flight sims like you, but then I took a slammer to the knee - Yoda

Posted
I would suspect a limitation of the atmosphere sim.

if this were the case then missiles would also be limited to m2.606

For the WIN

[sIGPIC][/sIGPIC]

If your desired effect on the target is making the pilot defecate his pants laughing then you can definitely achieve it with a launch like that.
Posted (edited)

Just fooling around, it isn't a hard limit at 2.606 but I can't get much faster. Also the dynamic weather in the MP server was completely insane. The nose was yawing all over the place above mach 1.6 yet the slip indicator didn't budge. Either I don't understand the concept of side slip or the HDI isn't being honest. Regardless I'm sure I could go faster with ideal conditions.

gg8NDrr.jpg?1

Edited by SinusoidDelta
Posted
Not necessarily, but who knows.

 

Perhaps a limitation on air-breathing engines? Missiles can hit higher speeds, but they use rockets and are thus not subject to ram drag.

Posted

Possibly yes. They may have also just not known what to do with the thrust curve at that point, I don't know.

 

@SinusoidDelta, there's no sideslip with crosswind. Sideslip requires beta.

 

However if the noise is just taking all over the place you might expect some movement of the ball - but it should center. You might be 'sideslipping' with respect to the ground, but not with respect to the air mass which is what the slip indicator measures.

[sIGPIC][/sIGPIC]

Reminder: SAM = Speed Bump :D

I used to play flight sims like you, but then I took a slammer to the knee - Yoda

Posted

Also, just a random point, not sure if anyone did this before but if you go at suuuper high speeds (M 2+) and then just dive down to sea level, if you are still well over 1.5, the aircraft will start to wiggle REALLY badly and start yawing from side to side... it's the rudder CAS trying to correct the flight but it keeps over correcting and eventually it will get so much that you'll just about depart or black out lol. If you turn off rudder CAS however, the problem goes away. Just an interesting note on the 15's FM

AMD 5600X -- Gigabyte RTX 3070 Vision -- 32GB 3600MHz DDR4 -- HP Reverb G2 -- Logitech 3D Extreme Pro -- Thrustmaster TWCS

BRRRT!  Car and aviation enthusiast, gun nut and computer nerd! 🙂

Posted

After 800kts indicated you should be at risk of losing control surfaces... Not yet implemented :-)

[sIGPIC][/sIGPIC]

Reminder: SAM = Speed Bump :D

I used to play flight sims like you, but then I took a slammer to the knee - Yoda

Posted
After 800kts indicated you should be at risk of losing control surfaces... Not yet implemented :-)

 

How so? I'm pretty sure the hydraulic systems in modern planes are pretty rugged? In what ways will you lose control surfaces? Physically ripping off?!

AMD 5600X -- Gigabyte RTX 3070 Vision -- 32GB 3600MHz DDR4 -- HP Reverb G2 -- Logitech 3D Extreme Pro -- Thrustmaster TWCS

BRRRT!  Car and aviation enthusiast, gun nut and computer nerd! 🙂

Posted
Yep. No longer on your plane.

 

Well interesting then... how did NASA or even just the airforce get the plane up to 2.5+ Mach? I'm pretty sure that at those speeds even at really high altitudes, IAS is much above 800 knots...

AMD 5600X -- Gigabyte RTX 3070 Vision -- 32GB 3600MHz DDR4 -- HP Reverb G2 -- Logitech 3D Extreme Pro -- Thrustmaster TWCS

BRRRT!  Car and aviation enthusiast, gun nut and computer nerd! 🙂

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