Author Topic: Vspeeds for Aircraft  (Read 979 times)

Offline Pand

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Vspeeds for Aircraft
« on: April 10, 2013, 11:20:20 AM »
:salute all

I would like to see the Vspeeds for each aircraft, specifically relative to the Aces High flight model, listed in either the hangar or the AH website.  I believe this would add a bit of realism to the game because each aircraft would contain this data in the POH (Pilot's Operating Handbook).  In addition, this could help new pilots (and vets) get the best performance out of their aircraft.

Looking for data like:
Vx
Vy
Va
Vfe
Vle
Vne
Vsl
Vso
Best Glide      

I have searched the details relative to the real aircraft, but there are discrepancies between many of the Vspeeds and how the aircraft responds in Aces High. 

 

Regards,

Pandemonium
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Offline Zacherof

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Re: Vspeeds for Aircraft
« Reply #1 on: April 10, 2013, 01:04:35 PM »
what is Vspeed if i may ask
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Offline Pand

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Re: Vspeeds for Aircraft
« Reply #2 on: April 10, 2013, 01:51:20 PM »

Regards,

Pandemonium
"HORDE not HOARD. Unless someone has a dragon sitting on top of a bunch of La7s somewhere." -80hd

Offline earl1937

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Re: Vspeeds for Aircraft
« Reply #3 on: April 10, 2013, 02:59:16 PM »
what is Vspeed if i may ask
All aircraft which are built and produced in the U.S., are tested extensively by the manufacturing company. The "V" speeds are a very important part of operating an aircraft with a high degree of safety. Most aircraft have the V speeds in POH and must be consulted by the flight crew. The weight of an aircraft at takeoff, for example, may, because of altitude above sea level,(density altitude), the "VR", speed at which you raise the nose wheel and put the aircraft in a takeoff attitude, might be 118 knots IAS, but the next day, because of the change in weather conditions and load on the aircraft, it might be 126 knots.
Pand has a valid request and I also so would like to see the different V speeds produced somewhere in the game. When Hi Tech designed this game, he had a "stick and rudder" type of aerial combat in mind, but as the game has more and more complex aircraft for players to use, the V speeds would be of great assistance, especially in the B-29 and other heavy bombers in the game.
More and more people are using this game as a "training" tool, to be used in real aircraft and in real flight, so it would benefit all to have these figures available to use as a "habit". As Knute Rockne, (famous Notra Dame football coach), once said, "what you do Monday thru Thusday" is what you are going to do on Saturday! And he is correct! Same thing applies to operating aircraft, what you do in pratice is exactly what you will do when you actually fly!
Remember, the worst time to pratice emergency procedures is during an real emergency, so practice, pratice, pratice.
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Offline colmbo

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Re: Vspeeds for Aircraft
« Reply #4 on: April 10, 2013, 07:24:37 PM »

Vx = Best angle of climb
Vy = Best rate of clime
Va = Maneuvering Speed (speed at which full and abrupt control movements may be made)
Vfe = flap extension (full flap)
Vle = landing gear extension (once extended it may be permissible to exceed Vle)
Vne = Never Exceed speed
Vsl = Unk
Vso = Stall speed landing configuration
Best Glide      

I have searched the details relative to the real aircraft, but there are discrepancies between many of the Vspeeds and how the aircraft responds in Aces High. 

 
Columbo

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Offline colmbo

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Re: Vspeeds for Aircraft
« Reply #5 on: April 10, 2013, 07:26:32 PM »
what you do in pratice is exactly what you will do when you actually fly!
Remember, the worst time to pratice emergency procedures is during an real emergency, so practice, pratice, pratice.

This almost cost me an airplane one time.  Had to "redo" some practice/practices.
Columbo

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Fate whispers to the warrior "You cannot withstand the storm" and the warrior whispers back "I AM THE STORM"

Offline RedBull1

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Re: Vspeeds for Aircraft
« Reply #6 on: April 10, 2013, 07:53:37 PM »
I would very, very much appreciate a chart of the best gliding speeds for each aircraft at max, min, and average weight. So many times I've been running home on fumes trying to guess what the best speed/AoA would be to glide into base/get the most out of what I have :aok
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Offline MK-84

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Re: Vspeeds for Aircraft
« Reply #7 on: April 10, 2013, 08:32:47 PM »
These would be very useful to me ingame.  especially best glide ;)

Offline Volron

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Re: Vspeeds for Aircraft
« Reply #8 on: April 11, 2013, 02:30:43 AM »
I can say one thing about the Glide on the Typhoon.

Best Glide: Straight Down. :)
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Offline colmbo

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Re: Vspeeds for Aircraft
« Reply #9 on: April 11, 2013, 04:20:11 AM »
I would very, very much appreciate a chart of the best gliding speeds for each aircraft at max, min, and average weight. So many times I've been running home on fumes trying to guess what the best speed/AoA would be to glide into base/get the most out of what I have :aok

Good start point would be to use Vy (best rate of climb). 
Columbo

"When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return."

Fate whispers to the warrior "You cannot withstand the storm" and the warrior whispers back "I AM THE STORM"

Offline FTJR

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Re: Vspeeds for Aircraft
« Reply #10 on: April 11, 2013, 06:26:25 AM »
Good start point would be to use Vy (best rate of climb). 

Would not the Vy be the default climb on the autopilot?  I use it for best glide as well.
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Offline Pand

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Re: Vspeeds for Aircraft
« Reply #11 on: April 11, 2013, 08:39:39 AM »
Would not the Vy be the default climb on the autopilot?  I use it for best glide as well.
For example, currently I am using default speed for climb and glide in the mustangs, which is 174 and seems to work well.  It is close to actual, but there are some definite differences to the in-game flight model.

I found the following in my notes from a few years ago:
   
Vx (best angle of climb)      87 kn (100 mph)   ????
Vy (best rate of climb)      148 kn (170 mph)
Va (design maneuvering)   226 kn (260 mph)
Vfe (max flaps extended)   143 kn (165 mph)
Vle (max land gear extended)   148 kn (170 mph)
Vne (never exceed)      439 kn (505 mph)
Vsl (stall, clean)         92 kn (106 mph)
Vso (stall, in landing config)   88 kn (101 mph)
Best Glide            152 kn (175 mph)

Also, it seems that some planes (like the P-51) have the airspeed indicator in MPH, and some aircraft have it in knots.  Regardless of aircraft, if you do a .speed 200 in formation with other aircraft, everyone ends up at the same horizontal speed.   Does anyone know (for sure) if Aces High is modeled in knots or mph?

Regards,

Pandemonium
"HORDE not HOARD. Unless someone has a dragon sitting on top of a bunch of La7s somewhere." -80hd

Offline earl1937

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Re: Vspeeds for Aircraft
« Reply #12 on: April 11, 2013, 01:08:58 PM »
 :airplane: :aok Again, a great post by Pand and some great comments on the thread! One thing that I would mention is just this: As I understand the establishment of glide, climb and manoeuvring speeds, the speeds listed in the operating Manuel, (POH) is established by computing the numbers the test pilots give to the engineers and then it is corrected to SEA level. That comes straight from the mouth of a "design" engineer who works for one of America's biggest military aircraft builders. There are so many variables in establishing the different speeds, that it is hard to "pin" the speed down to one number! Example, density altitude is the only thing the aircraft wing recognise when it comes to performance of that aircraft. If a "Ponie" has a best glide speed of 164,(K model POH), at sea level, at 23,000 feet, it is going to be something other than the 164, to get the maximum performance and glide distance. Head wind or tail wind also makes a big difference in the glide distance of any aircraft. The weight of the aircraft has something to do with the performance also. The glide figures you see, with most aircraft is assuming a 50% amount of fuel left in the tanks. Can you feather the prop? Another good question, is there any aircraft damage, such as a wing tip missing, prop blade broke off? As you can see, there are a number of things which effect glide distance and my recommendation is to use what the manufacturer recommends! One thing that works to all our advantage in Aces High, there is no wind and density altitude is something we don't have to consider.
One of the first things you should know about an aircraft is its glide "ratio"! Is it 4 to 1? That means does it go 4 feet forward for every foot of altitude lost? Or does it mean you lose 4 feet of altitude for every foot you move forward?
The one thing I would recommend for all flyers in Aces High to do is, sometime with nothing else to do, glide, engine shut down, from 1 sector line to the next one. Observe your altitude when you start your glide, then observe it again after reaching the next sector line. The sectors are 25 mile from one sector line to the next, so you should be able to decide how many total miles you can glide in this game, depending of course, on what altitude you had engine failure. This will give you a heads up on whether or not you can reach your base of choice after engine failure.
While you are checking aircraft performance in this game, you should also check two other figures as well. In auto-climb with full power,(no WEP), how much altitude can you gain in one sector of flight? Next, at your normal cruising speed, again, check from sector line to the next, so as to better give your buddies a ETA to their position.
Oh well, didn't mean to be so long winded, but Pand has raised a good point and hopfully the comments I made will give people in the game "food" for thought and maybe, just maybe it will make a better pilot of someone who wants to learn.
« Last Edit: April 11, 2013, 01:15:22 PM by earl1937 »
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Offline fuzeman

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Re: Vspeeds for Aircraft
« Reply #13 on: April 11, 2013, 01:21:44 PM »
Wouldn't all these numbers change depending on how the plane is loaded? For example 25% fuel versus 100%.
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Offline earl1937

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Re: Vspeeds for Aircraft
« Reply #14 on: April 11, 2013, 01:25:05 PM »
For example, currently I am using default speed for climb and glide in the mustangs, which is 174 and seems to work well.  It is close to actual, but there are some definite differences to the in-game flight model.

I found the following in my notes from a few years ago:
   
Vx (best angle of climb)      87 kn (100 mph)   ????
Vy (best rate of climb)      148 kn (170 mph)
Va (design maneuvering)   226 kn (260 mph)
Vfe (max flaps extended)   143 kn (165 mph)
Vle (max land gear extended)   148 kn (170 mph)
Vne (never exceed)      439 kn (505 mph)
Vsl (stall, clean)         92 kn (106 mph)
Vso (stall, in landing config)   88 kn (101 mph)
Best Glide            152 kn (175 mph)

Also, it seems that some planes (like the P-51) have the airspeed indicator in MPH, and some aircraft have it in knots.  Regardless of aircraft, if you do a .speed 200 in formation with other aircraft, everyone ends up at the same horizontal speed.   Does anyone know (for sure) if Aces High is modeled in knots or mph?
:airplane: I would think, based on experence, that everything in here is in Knots. If statue miles per hour were used, then most of the speeds are off. It would be interesting to know which HI Tech used.
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