Mixture does not seem to change on Hurri or Spit.

[Uriah]

I tired assigning buttons to control mixture.  I tried a lever.  Neither seems to move the lever in the game Hurri or Spitfire (earliest model).

I even tried using the clickable cockpit feature.  I could move the radiator stick in the Spitfire.  But I could not for the mixture. 

Any ideas? 

[Art-J]

Many Brit planes tend to have mixture regulators only with cut-off and run positions, or with separate mixture cut-off control in the cockpit, which has to be bound to a separate command on your keyboard/Hotas (while we're at it, the same applies to boost cut-out function which allows running on higher manifold pressure). Thus the mixture lever might be non-functional in the game for them.

 

The same simplification / game engine limitation applies to other planes which should have more mixture positions available (ie. P-40s), but it's not a game-breaker in my opinion.

[Uriah]

Based on that Art-J

considering that I am just wanting to focus on the Spit and Hurri ...

there is an AXIS option which is not helpful.

And given

Keys for mixture

Event 

Mixture Lean

Mixture 10% to 90%

Mixture Rich

Decrease Mixture

Increase Mixture

I suppose the appropriate choice to map to a couple of buttons is just events Mixture Lean and Mixture Rich.

Is that right?

[Sokol1]

Just set keys* for Increase and Decrease Mixture.

• * Because this command has vey low priority, see bellow.

Mixture adjust - in Hurricanes and Spitfire;  has two positions: Rich and Weak

 

Rich is spawn default setting with Mixture lever back, lever full ahead is Weak, but only advance if throttle is above ~50%, what means that can be adjusted only in flight.

Mixture lever is interlocked with throttle lever, reduce throttle to idle push back the mixture lever for Rich position.

 

In RL mixture in Weak help in save fuel, in game game this has no much practical use, since in the short distances of the map fuel is not an issue.

 

You can set Mixture control in a analog axis, e.g if have, e.g. CH Quadrant, but the axis will work as an ON-OFF switch: quadrant lever full ahead Weak, full back Rich with no effect in between.

Edited December 29, 2022 by Sokol1

[Uriah]

I got what you mean Sokol1.  And thanks.  But maybe to be a bit more clear to other folks...

The lever will not move to lean unless the throttle is over 50% forward.

      And will only move back to rich if throttle is less than 50%.

           The reason is that the mixture lever is interlocked with throttle lever.

So if you are pushing a key assigned for mixture and nothing is happening it is likely that you are countering the above. 

The only way to know for sure that you have your key assignment correct for lean is to get up in the air and and get that throttle half way up to full throttle.  Then try hitting the key for lean.  You should see it work then.    This is on a Spitfire. 

 

[ATAG_Snapper]

Hi Uriah,

 

Here's a little note I posted about 7 years ago on the ATAG Forum regarding the mixture control on the early Marks of Spitfires and Hurricanes. Hope it proves useful.

 

Cheers!

 

A lot of effort was put into making the mixture controls accurately modelled in the Hurricanes and Spitfires. This was done pre-Team Fusion by IvanK who worked directly with the original Maddox Games/1C devs. Prior to this the mixture controls were a horrible mess, which incorrectly varied from model to model; a really confusing nightmare.

Thanks to IvanK, it got all straightened out. The mixture controls work exactly the same as in the real Spitfires and Hurricanes.

1) There are only two mixture settings: Auto Rich (= 0% on Clod's scale) and Auto Lean (= 100%). Yes, this percentage system in-game is goofy and counterintuitive, but there it is. Important to note that there is no such thing as "Full" Rich or "Full" Lean in any of the early Mark Spits and Hurries, nor is there any intermediate manual control of mixture. The real Spits and Hurries didn't have it, nor do the Clod versions. It's either Auto Rich or Auto Lean....nothing in between.

2) As in the real Spits and Hurries, there is a mechanical linkage between the throttle lever and the mixture lever. When the throttle is pulled back, it physically pulls the mixture lever back with it into Auto Rich. With the throttle lever pulled back, it is physically impossible to push the mixture lever forward into Auto Lean. This was done to prevent addle-brained low-time pilots from either blowing their Merlin engines outright or failing to achieve fine throttle adjustment response at such crucial moments as throttling down for a landing and forgetting, after a long patrol, to also move their mixture lever back to Auto Rich as well.

3) For 99.99% of your flying on Clod, do what the real Battle of Britain pilots did and leave the mixture lever back in its Auto Rich position for climb, dive, cruise, landing, and combat. The carburetor automatically adjust the mixture for optimal performance at all altitudes, engine boost, and prop pitch settings. When to use Auto Lean?

A couple of cases:

a) you need to patrol/loiter for 2 or more hours while capping or on convoy patrol. Once you reach altitude, you coarsen your prop settings to give revs below 2200 rpms and throttle to give manifold boost below 0 psi. At the first sign of combat you immediately pull the mixture lever back to Auto Rich, and increase throttle and rpms to suit the situation.

b) you took off with less than 100% fuel and find yourself far from home with only 12 gallons of fuel and a big Channel to cross.

c) you get recruited by the Wimpey Squad to fly escort on one of their long missions across Channel or across desert. 

[Uriah]

Great piece of advice and deeper understanding Riley.  Thanks much.

[ATAG_Snapper]

2 minutes ago, Uriah said:

Great piece of advice and deeper understanding Riley.  Thanks much.

No worries. I’m hoping to recruit you for escort duty with The Wimpey Squad.