Wrong IAS reported in scripts for non FC3 aircrafts

[Vyrtuoz]

I have noticed that with non FC3 aircrafts, DCS World 1.5.0.46175 reports "wrong" IAS while reading values from LUA export script environment.

 

My code is baed on values found in scripts like

\DCSWorld\Mods\aircraft\P-51D\Cockpit\Scripts\mainpanel_init.lua

AirspeedNeedle			= CreateGauge()
AirspeedNeedle.arg_number	= 11
AirspeedNeedle.input		= {0,   50,   100,  150,  200, 250,  300, 350,  400, 450,  500, 550,  600, 650,  700}
AirspeedNeedle.output		= {0.0, 0.05, 0.10, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7}
AirspeedNeedle.controller	= controllers.AirspeedNeedle

 

Here is some pseudo code:

MainPanel=GetDevice(0)
MainPanel:update_arguments()
MainPanel:get_argument_value(AirspeedNeedle.arg_number)

 

For instance, while doing the test with the TP-51D, the value reported is something like about 200 times bigger than expected. I have noticed the same issue with other non FC3 aircrafts like the A-10C.

 

IAS is reported as expected by DCS World 1.2.8.27915

 

Is this a bug or a new intended behavior?

[hsth]

Hi,

 

I've noticed this as well. Using Tacview 1.4.0 it shows wrong IAS speed for the MiG-21bis.

Going from the ramp to the rwy, TAS = 33 km/h, IAS = 18.459 km/h.

In the air, TAS = 807 km/h, IAS = 348.032 km/h.

 

I've attached the Tacview acmi file.

Tacview-20151104-114542-DCS.txt.acmi.zip

[gospadin]

Hi. I'm seeing this as well. Gauges in the cockpit seem fine, but when tacview displays them, the IAS is *way* off. I don't think the Mi-8 is capable of Mach 19...

 

[Scorzy]

DCS 1.5.1 openbeta - the same issue during online fights on Dora

Have no idea, why I haven't burnt in the atmosphere :)

[Ramsay]

Confirmed, for DCS 1.5.1 beta viewed in Tacview 1.4

 

Older PFM/EFM aircraft like the Ka-50, A-10C, P-52D and UH-1H have bugged IAS

 

FC3 aircraft like the Su-25, Su-25T, F-15C are ok

 

as is the 'Standard Flight Model' Hawk.

 

Surprisingly the L-39C is also ok

Edited November 11, 2015 by Ramsay

[Vyrtuoz]

I have finally found the problem guys!

 

After a long debugging session, I came to the conclusion that the IAS now exported by DCS World 1.5+ in m/s instead of a “hand position” like in DCS World 1.2.

 

Sorry I didn’t understand this change earlier… This will be fixed in Tacview 1.4.3.