F-110 engine nozzle scheduling on the ground

[bkthunder]

Hi all and happy new year!

Reading through the F-14B natops I came across the decsription of nozzle operation, and verified the in-game model differs from reality (or at least what's described in the NATOPS) when on the ground with weight on wheels:

From page 2-18: 

"On deck in PRI mode with throttle above
IDLE detent, nozzle position varies linearly with
throttle position."

 

In DCS, the nozzle closes completely (and not linearly) as soon as the throttle is cracked forward, as can be seen in the screenshot

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EDIT: one more thing, the noz pos gauges seem to be wrongly labeled 0-5 insted of 0-10, according to the (very low res) depitction on the NATOPS, see attached image

Edited January 13, 2023 by bkthunder

[Golo]

20 minutes ago, Бойовий Сокіл said:

This is known.

Not exactly. The texture is indeed from A, but the needle/nozzle movement is incorrect for B too. It should move linearly with throttle position as OP say. 

Now it behaves like in A model with TF30s, See NAVAIR 01-F14AAA-1, 2.2.4 Variable-Area Exhaust Nozzle.

Turbine expansion pressure ratio and exhaust gas flow for both basic engine and afterburner operation are controlled by a variable-area, convergent-divergent exhaust nozzle.
The nozzle is operated by four fuel pressure-operated actuators that drive a unison ring to position the nozzle flaps. For basic engine operation, the nozzle is closed to
the minimum area (except for ground idle operation to reduce residual thrust); in afterburning, the nozzle area is infinitely variable to a full open position, which
representsa 110-percent increase in exit area.

 

Edited January 13, 2023 by Golo

[bkthunder]

Bump, any aknowledgment of this bug?