1C Home   |   Register   |   Today Posts   |   Members   |   UserCP   |   Calendar   |   Search   |   FAQ

Go Back   Official 1C Company forum > 1C Publishing > IL-2 Sturmovik > Daidalos Team discussions

Thread Tools Display Modes
Old 05-18-2017, 08:46 PM
Tolwyn Tolwyn is offline
Approved Member
Join Date: Apr 2010
Posts: 193
Default FMB / Mission Speed Bug

Ok. My one question to IC/TD is this.

What is up with Speed in the FMB?

Can anyone give a CLEAR. CONCISE. ANSWER, please?

Here's my original post on this matter, and then a followup link to a forum post by someone with the same concern.

Is the Speed in the FMB IAS or TAS? Is this correct when flown by Human or AI?

I can't imagine how old this bug is.
PLEASE PLEASE take a close look at this. I normally wouldn't plead, but this is... important.

This centers around whether the flight is flown by AI or Human (in either SP or COOP mode).

Let's look at a typical line of waypoint information in a Mission file:

NORMFLY 7500.00 10000.00 6000.00 428.00 &1

The first value is the East/West coordinate. (in meters)

The second value is the North/South coordinate. (in meters)

The third value is the altitude (ALWAYS in meters). (in meters)

which leads us to

the fourth value is SPEED (ALWAYS in kph)

However, if it's a HUMAN controlled plane, this value is:

The TRUE AIR SPEED (TAS) given the Altitude... the speed your plane is at when you spawn in is IAS.

if you fly Imperial: 482 = about 190mph IAS @ around 20,000feet (6000m)
if you fly Metric: 482 = about 306kph IAS @ 6,000m
With me so far?

If you are the HUMAN in this flight, you spawn in the game travelling at 190mph or 306kph.

If the flight is an AI flight (or if the pilot is AI), the aircraft spawns in attempting to fly at the LITERAL value in the mission file (266mph (482kph)!!)

Can we fix this please? For mission planning and timing, etc.?

The game doesn't translate speed for AI flights the same as it does for Human flights based upon the values in the MISSION file.

Last edited by Tolwyn; 05-19-2017 at 05:55 PM.
Reply With Quote
Old 05-19-2017, 05:50 PM
Tolwyn Tolwyn is offline
Approved Member
Join Date: Apr 2010
Posts: 193

Here is a great post that also is also discussing the question:

Reply With Quote
Old 05-20-2017, 02:44 PM
Marabekm Marabekm is offline
Approved Member
Join Date: May 2013
Location: USA
Posts: 156

As far as I know, yes speed is in kilometers per hour.

The AI will always fly at the speed you have them set to in the waypoint. So if you set it to 100 kph or 500 kph the AI will fly at that speed.

The players aircraft, the mission builder has 0 control over what speed they fly to be honest. Because the AI will fly at the set speed but maybe I want to fly max throttle, or I want to fly 60 throttle or whatever. But you would have no control over how fast I wanted to go.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT. The time now is 09:36 PM.

Based on a design by: Miner Skinz.com

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © 2007 1C Company. All rights reserved.