Refined damage model

[hitech]

You're confusing yourself. Beta IS a measure of feathering fine pitch. Likewise, coarse pitch for a piston is the same thing as pushing prop lever forward for more thrust.

A fine pitch propeller has a low blade angle (more "vertical") and will take a 'small' bite of the air, each rotation will try to move forward a small distance through the air. It requires relatively low power to rotate, allowing high propeller speed to be quickly developed, but achieving only limited airspeed. This is like having a low gear in your car.

A coarse pitch propeller has a high blade angle (more "horizontal"), will try to advance a long distance through the air with each rotation, it will take a big 'bite' of the air. It requires greater power to rotate, limiting the propeller speed that can be developed, but achieving high airspeeds. This is like having a high gear in your car.

This is way way wrong. The prop lever does not control pitch directly it controls RPM!!!!!!!!

Pushing the prop lever forward sets the RPM governor to a greater RPM. To increase RPM for the same Manifold pressure requires less bite of the air by the prop, hence lever forward = smaller bite of air. As your speed increases the governor increases the bite of your prop to maintain the same RPM.Max power is achieved at MAX RPM. Hence when power is needed all levers go forward and the prop beta is decreased to give max HP .

HP = Torque * RPM.

Manifold pressure controls torque.
Prop pitch controls RPM.

Move either lever forward you get more HP.

HiTech

[skorpion]

hey HT's back from his vacation?

[JOACH1M]

Meh. Somehow it has to be frame rate friendly. Maybe not a stream of smoke but like a big puff or something? Smoke kills my FPS

Make it selectable

[Charge]

Pictures of consequences of prop going fine pitch at speed: http://www.daveswarbirds.com/b-17/wings.htm

-C+

[clerick]

I know that not everyone would welcome engine management but what if it was selectable like combat trim?

Combat trim takes some of the fiddly work out of flying but, it's a trade off, max performance versus ease of flight. Why not the same option for engines with a similar trade off?  Leave it all on auto and you'll  have easy flying and reliability but not max performance. Switch it to manual and you'll have immersion and a performance edge but you're forced to manage it or you'll lose the engine.  Just to keep people honest you'd have to select it BEFORE the sortie.

[Raptor05121]

I know that not everyone would welcome engine management but what if it was selectable like combat trim?

Combat trim takes some of the fiddly work out of flying but, it's a trade off, max performance versus ease of flight. Why not the same option for engines with a similar trade off?  Leave it all on auto and you'll  have easy flying and reliability but not max performance. Switch it to manual and you'll have immersion and a performance edge but you're forced to manage it or you'll lose the engine.  Just to keep people honest you'd have to select it BEFORE the sortie.

Now THAT is a great idea. Although I do see an advantage to those who have a throttle quadrant (ME!!!!)

[Raptor05121]

This is way way wrong. The prop lever does not control pitch directly it controls RPM!!!!!!!!

How is it "way wrong"?

I never said the pitch lever directly controls pitch, I was stating the difference between the two pitch angles. You're basically going into greater detail of what I said.....

[hitech]

I know that not everyone would welcome engine management but what if it was selectable like combat trim?

Combat trim takes some of the fiddly work out of flying but, it's a trade off, max performance versus ease of flight. Why not the same option for engines with a similar trade off?  Leave it all on auto and you'll  have easy flying and reliability but not max performance. Switch it to manual and you'll have immersion and a performance edge but you're forced to manage it or you'll lose the engine.  Just to keep people honest you'd have to select it BEFORE the sortie.

How often do you currently adjust your RPM in AH?

HiTech

[Wiley]

Just sayin...  I adjust my RPM every time I need to dead stick into a field and am far enough away I need to get as much distance as I can.

I'm ashamed to admit... it happens often.

Wiley.

[olds442]

How often do you currently adjust your RPM in AH?

HiTech

almost every single flight.. why bring more gas just get better fuel milage

[RTHolmes]

How often do you currently adjust your RPM in AH?

every sortie for fuel management (and immersion - cruising level just doesnt sound/feel right with the engine pulling as hard as it can)


edit: btw HT nice job on the engine modelling - I use the WWII pilot notes power instructions for all the aircraft I usually fly and going by the RL book produces the same results in AH

[MK-84]

every sortie for fuel management (and immersion - cruising level just doesnt sound/feel right with the engine pulling as hard as it can)


edit: btw HT nice job on the engine modelling - I use the WWII pilot notes power instructions for all the aircraft I usually fly and going by the RL book produces the same results in AH

Thats not the RPM that's changing

[titanic3]

You can change the RPM, numpad +/- does it. I'm no expert, but I can't tell the difference between reducing RPM and just reducing manifold.

[Raptor05121]

You can change the RPM, numpad +/- does it. I'm no expert, but I can't tell the difference between reducing RPM and just reducing manifold.

x2.

Plus I'm a control freak. This is why I have a CH Products Throttle Quadrant.