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F-14A top speed with loadout? Can't even reach Mach 1


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Posted

Not sure if this is a bug or if it's accurate, but I just took an F-14A to 38k feet and couldn't get past Mach 1 in full A/B.

 

Loadout:

4x Ph, 2x AIM-7, 2x AIM-9 and 2x tanks

 

Standard DCS day and weather. 

 

By comparison, in the F-14B (same scenario) I reached M1.7, and in the F-15 M 1.8

 

 

Seems a little strange that the A model is so under-performing, am I missing something?

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Posted (edited)

I’ve had the “A” up to 1.8 with little difficulty, with bags, winders and two big boys.

There seems to be a lot of people having issues with winding up the 14, but I can’t see why to be honest.


:dunno:

Edited by G.J.S

- - - The only real mystery in life is just why kamikaze pilots wore helmets? - - -

Posted
6 minutes ago, Skysurfer said:

There is a bug currently where there is way too little thrust / too much drag from 30k feet and higher. Try the same at 26k feet and you'll see.

Now it makes more sense... has it been reported?

Windows 10 - Intel i7 7700K 4.2 Ghz (no OC) - Asus Strix GTX 1080 8Gb - 16GB DDR4 (3000 MHz) - SSD 500GB + WD Black FZEX 1TB 6Gb/s

Posted
19 minutes ago, G.J.S said:

I’ve had the “A” up to 1.8 with little difficulty, with bags, winders and two big boys.

There seems to be a lot of people having issues with winding up the 14, but I can’t see why to be honest.


:dunno:

 

 

At what altitude? You can do 1.2 on the deck or 1.6 at medium altitudes no problem. There is simply a drag/thrust bug higher up.

Posted (edited)

Was the low 30’s.

Can’t remember the exact weather setup other than it was cold at low alt, with a low ambient pressure, so would be Baltic up above cons.
Took a little while to get to that speed (somewhere around 60 ish miles?), before it got somewhat asthmatic but it would have got higher had I persisted (I had overhauled the target at that point).

It was something akin to the U-2 cruise climb - as you get lighter you attain a slight climb.

Its not a one off thing - I can get there repeatedly even at ISA defaults.
That’s why I don’t understand why others struggle. The “B”? No problems, that thing just keeps going, but I prefer the “A”. 

 

Edited by G.J.S

- - - The only real mystery in life is just why kamikaze pilots wore helmets? - - -

Posted (edited)

FWIW, while testing something else using the current Open Beta release, I had a look at this F14A-P414A configuration-

 

All runs included two tanks at 30,000 MSL.

 

2/2/4, max velocity was 1.22 IMN stagnant.

2/2/2  1.65 IMN very, very slow acceleration.

2/2/empty rails, 1.8 but still slowly accelerating.

 

There is Ps Chart data for the 2/2/2 Tanks config that shows Mmax at 30K at 1.56 IMN. The sim is slightly faster than the charted value.

 

Referencing the OP's post, at ~38K it shows 1.75 IMN. Interesting at how much those two aft AIM54's affect total drag.

 

Max velocity in the 2/2/2 plus tanks config at 1G occurs at ~37,000 at ~1.82.

 

The issue is known and is in work.

Edited by Victory205
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Posted

There was a switch the RIO could flip that would enable the TF30s to produce greater thrust at high altitudes correct?

F/A-18C; A-10C; F-14B; Mirage 2000C; A-4E; F-16C; Flaming Cliffs 3

Posted
13 hours ago, CarbonFox said:

There was a switch the RIO could flip that would enable the TF30s to produce greater thrust at high altitudes correct?

Not a switch, not at high alt but...

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