Autopilot VS mode.

[APDrone]

Assuming the OP is referring to rate of climb, You can set the rate of climb by hitting shift-X while the plane is at the angle of attack you want.

Isn't that essentially what he's asking for?

You want a ROC of 1000 ft/min?  Pull back on the stick until you get 1000 ft/min ROC, then hit shift-x. You should be set.

[gyrene81]

drone, i think he's wanting to maintain a specific airspeed and and maximum climb rate together...

machfly...try doing it manually...find the default climb rate for whatever you're flying then try to match that manually and watch your actual airspeed...you will see that the longer you hold on to that climb rate the slower your plane will go until you stall out

[MachFly]

drone, i think he's wanting to maintain a specific airspeed and and maximum climb rate together...

machfly...try doing it manually...find the default climb rate for whatever you're flying then try to match that manually and watch your actual airspeed...you will see that the longer you hold on to that climb rate the slower your plane will go until you stall out

No just the climb rate, I don't care about the speed.

[MachFly]

Assuming the OP is referring to rate of climb, You can set the rate of climb by hitting shift-X while the plane is at the angle of attack you want.

Isn't that essentially what he's asking for?

You want a ROC of 1000 ft/min?  Pull back on the stick until you get 1000 ft/min ROC, then hit shift-x. You should be set.

You might be right, I got to think about that. I'm not sure if the same power setting & constant angle of climb will give you the same climb rate.

[Krusty]

So you do not think your stall speed depends on weight?

Stall speed has nothing to do with optimum (i.e. best) rate of climb.

If you're stalling you aren't climbing.

[MachFly]

Stall speed has nothing to do with optimum (i.e. best) rate of climb.

If you're stalling you aren't climbing.

The lighter you are the less AoA (Angle of Attack) you need to maintain lever flight at a giver airspeed, if you need less AoA to maintain level flight at that airspeed than you can use that AoA to fly slower or climb faster. Therefore lighter aircraft climb faster. 

[Chalenge]

Shift-x is what you are talking about and you already have it. If your airplane is incapable of holding that angle it will fall.

Now if you also want a dot command like ".rate 3800" just say so. Problem is you may not be able to sustain that rate which is what Krusty is saying.

[Krusty]

The lighter you are the less AoA (Angle of Attack) you need to maintain lever flight at a giver airspeed, if you need less AoA to maintain level flight at that airspeed than you can use that AoA to fly slower or climb faster. Therefore lighter aircraft climb faster. 

Uh... No....

Climb is a result of excess thrust more than anything else. This from HT himself.


I don't think you understand how it works. I'm no expert but I think I understand more than you. I would suggest reading up on it more. You seem to be barking up the wrong tree?

[MachFly]

Uh... No....

Climb is a result of excess thrust more than anything else. This from HT himself.


I don't think you understand how it works. I'm no expert but I think I understand more than you. I would suggest reading up on it more. You seem to be barking up the wrong tree?

Extra thrust? I was using a scenario with the same exact thrust. You can't compare the amount of thrust if it's exactly the same.

I'm pretty sure I know what I'm talking about. You said "no" to my last post, please explain why you think I'm wrong.

[MachFly]

Shift-x is what you are talking about and you already have it. If your airplane is incapable of holding that angle it will fall.

Now if you also want a dot command like ".rate 3800" just say so. Problem is you may not be able to sustain that rate which is what Krusty is saying.

Absolutely you wont be able to sustain that rate forever, I never said you will. And yes that's exactly what I want.
Right now shift-x keeps your nose pointed where you had it, I want it to move to the rate I want it to (just like we have it with airspeed now).

[Krusty]

Extra thrust? I was using a scenario with the same exact thrust. You can't compare the amount of thrust if it's exactly the same.

I'm pretty sure I know what I'm talking about. You said "no" to my last post, please explain why you think I'm wrong.

I don't think so.

Your climb rate is a product of other variables. Best climb speed will give the highest climb rate regardless of what that product is. Like on a graphing calculator you just look and pinpoint the highest peak.

The wing's shape is fixed. At a specific speed air flowing over that wing yields the MOST lift. Go too slow you stall and disrupt airflow. Go too fast and it's not as efficient (or something like that). There is a sweet spot.

Now, climbing AT that sweet spot always yields the most lift, but how that lift is translated? It keeps you from falling out of the sky. The rest is a result of the engine "pulling" you uphill. That's where excess thrust comes in.

You're asking to solve the answer instead of the equation. You pick a number and want to intuitively fill in the variables. Problem is those variables can be anything. You know the answer is 42, but what's the question? You could arbitrarily say the question was "What do you get when you multiply 7 by 6?"...

Does that help? No, not really.

For maximum climb, you will always get most climb rate at the "best lift" speed. Once you have best lift the rest is clawing your way upwards.

And if you're not talking about maximum climb there's no reason to continue the debate because, frankly, we have angle climb already, and the other scenarios you can think up are too numerous to count. IMO you could set whatever you want, doesn't mean the game can remotely enforce it based on trim inputs. It's far more dependent on throttle.


The VS is the end product, and is variable. It's not a constant that you can set. Not with accuracy or reliability.


That's all I've got to say on the matter. Seems to be going in circles here. No offense meant, I mean. It just doesn't seem to be going anywhere. [EDIT 2: I mean that I lack the eloquence to explain it any better to you, and possibly the training/education to better explain what's really going on]

EDIT: Also, VS-oriented climb rates are really not that helpful.

[VonMessa]

Climb rate is based on engine power with regard to weight of aircraft.

How fast I want top climb will be the deciding factor in which engine I choose when I am finished building my plane.  More horses = faster climb rate

Stall speed will be 40 mph, regardless of how much fuel or weight I carry.

AoI is built into the wing design.

[MachFly]

I don't think so.

Your climb rate is a product of other variables. Best climb speed will give the highest climb rate regardless of what that product is. Like on a graphing calculator you just look and pinpoint the highest peak.

The wing's shape is fixed. At a specific speed air flowing over that wing yields the MOST lift. Go too slow you stall and disrupt airflow. Go too fast and it's not as efficient (or something like that). There is a sweet spot.

Now, climbing AT that sweet spot always yields the most lift, but how that lift is translated? It keeps you from falling out of the sky. The rest is a result of the engine "pulling" you uphill. That's where excess thrust comes in.

You're asking to solve the answer instead of the equation. You pick a number and want to intuitively fill in the variables. Problem is those variables can be anything. You know the answer is 42, but what's the question? You could arbitrarily say the question was "What do you get when you multiply 7 by 6?"...

Does that help? No, not really.

For maximum climb, you will always get most climb rate at the "best lift" speed. Once you have best lift the rest is clawing your way upwards.

And if you're not talking about maximum climb there's no reason to continue the debate because, frankly, we have angle climb already, and the other scenarios you can think up are too numerous to count. IMO you could set whatever you want, doesn't mean the game can remotely enforce it based on trim inputs. It's far more dependent on throttle.


The VS is the end product, and is variable. It's not a constant that you can set. Not with accuracy or reliability.


That's all I've got to say on the matter. Seems to be going in circles here. No offense meant, I mean. It just doesn't seem to be going anywhere. [EDIT 2: I mean that I lack the eloquence to explain it any better to you, and possibly the training/education to better explain what's really going on]

EDIT: Also, VS-oriented climb rates are really not that helpful.

That "best speed" you talk about depends on your weight. Here is why:

The lighter you are the less AoA (Angle of Attack) you need to maintain lever flight at a giver airspeed, if you need less AoA to maintain level flight at that airspeed than you can use that AoA to fly slower or climb faster. Therefore lighter aircraft climb faster.  

Your airspeed is not always the same in the climb. It depends on your weight.

[MachFly]

Climb rate is based on engine power with regard to weight of aircraft.

How fast I want top climb will be the deciding factor in which engine I choose when I am finished building my plane.  More horses = faster climb rate

Stall speed will be 40 mph, regardless of how much fuel or weight I carry.

AoI is built into the wing design.

So your saying that if you put the same exact engine on a C-5 and on a Cub their climb rate will be exactly the same?  
And the stall speed depends on the engine?  

[FLS]

Machfly in your first example the faster aircraft would zoom up under you and shoot you down. It wouldn't matter that you can out climb them because they don't have to ram you.

If you look at a climb rate chart you'll see that the climb rate decreases with altitude for a given power  output. This means that setting a given max climb rate will always cause you to stall as the air density decreases which is what Krusty pointed out to you.

Flying slower than your best climb speed doesn't let you climb faster because the higher AOA has more induced drag. Flying slower than your best climb speed gives you a lower climb rate.

The auto speed defaults to best climb speed which gives you your max climb rate.