Cruising - weight, height, throttle & speed?

[effte]

max endurance = max range ?

 

Nope. Endurance = time.

 

Range = ... erm... well... range.

[Wolf Rider]

NP FreeFall, english isn't consistent the world over... its a problem

 

think of it as, the faster you're flying, the more the indicator will lean towards 0

 

so, if you're landing its in the high number range, if you're wanting to extend your flight as far as possible (and return to base) you'll need to be in the middle range and when flying fast (cruising speed), you'll want to be trimmed into the lower number range. (remembering that trim and throttle setting need to match (work together) - trim as close as you can get to level, then adjust the throttle up/ down to get you flying level... the trim function won't do it by itself)

When firewalling the throttle (going flat stick) and noting that cruising speed being less than max speed, you'll be down around the 10 ~ 13 number on the AoA indicator, depending on load out.

 

 

Nope. Endurance = time.

 

Range = ... erm... well... range.

 

 

nope... endurance means to endure, to last/ stay/ continue/ keep going

 

range is how far ya can get on a full tank, taking the speed travelled at and fuel consumption into account, plus other factors

Edited November 2, 2011 by Wolf Rider

[GGTharos]

nope... endurance means to endure, to last/ stay/ continue/ keep going

 

Exactly. It means time.

[Wolf Rider]

Exactly. It means time.

 

 

?

[Eddie]

?

 

All the things you listed in your definition are related to time Wolf, endurance is indeed time related. When someone ask what your max endurance is you would respond with a length of time, not a distance.

[Wolf Rider]

Okay, I see we have (what some down under call grabbing opposite ends of the same stick) the same thing being said in different ways.

Flying for as long as one can, in relation to distance travelleable (without refueling), that being straight out then back, is max range.

 

So, if you want to fly as far as you can, or for as long as you can, the plane should be configured for the middle range indication on the AoA gauge?

[FreeFall]

Back to dscwiki

http://www.dcswiki.com/index.php?title=Angle_of_attack_indicator_%28A-10%29

 

15.6 scale units - maximum range index

17.5 scale units - maximum endurance index

20.0 scale units - approach index

Expression "maximum range" should be replaced? With a more appropriate term, which is ____________.

[Wolf Rider]

Expression "maximum range" should be replaced? With a more appropriate term, which is maximum range.

 

 

 

all the specs on aircraft give Range: 800km or 1200km or whatever that range happens to be (at the all important "optimum conditions" waiver)

 

from the wiki

 

• Type - Close air support
  
• Developed - Fairchild Republic, USA
  
• Crew - 1
  
• Length - 16.26 m
  
• Height - 4.47 m
  
• Wing span - 17.53 m
  
• Empty weight - 9389 kg
  
• Maximum weight - 21081 kg
  
• Maximum speed - Mach 0.75
  
• Maximum range - 1500 km
  
• Service ceiling - 32800 ft
  
• G limit - 5.9 G
  

http://www.dcswiki.com/index.php?title=A-10_Thunderbolt_II#Specifications

 

 

another way to look at it...

 

if you have half a tank and a long way to go, configure for range (same configuration as endurance?)

if you need to fly for a long as you can, configure for endurance (same configuration as range?)

if you have a full tank and the same distance to go, configuring for cruising is a possibility.

if there is no need to fly for as long as you can, configuring for cruising is also a possibility

Edited November 2, 2011 by Wolf Rider

[GGTharos]

Wrong.

 

Flying as long as you can is not the same as flying as far as you can, and this is exactly why they have separate AoA tick marks.

 

So, if you want to fly as far as you can, or for as long as you can, the plane should be configured for the middle range indication on the AoA gauge?

[Wolf Rider]

Thank you... I'm on about "flying as far as you can".

Edited November 2, 2011 by Wolf Rider

[FreeFall]

Thanks, Wolf. And other forum members. At least the approach part is 100% crystal clear to me. :megalol:

[Wolf Rider]

lol, that one seems to be the easy bit :thumbup: landings is landings, Sol

 

 

 

this > http://kriegsimulation.blogspot.com/2010/10/dcs-10c-warthog-angle-of-attack-watch_24.html may help... accuracy?

Edited November 2, 2011 by Wolf Rider

[FreeFall]

this > http://kriegsimulation.blogspot.com/2010/10/dcs-10c-warthog-angle-of-attack-watch_24.html may help... accuracy?

 

Nice link (for newbie like me)! Thanks!

[wess24m]

I had a similar question, if the engines always operate at optimum rpm ect (as I've read) besides burning a lot of fuel is it bad to operate the engines at full thrust for extended periods? I know that airliners engines #I know whole different animal# aren't made to run at full thrust for extended periods. In fact they rarely are at full throttle at takeoff #airliners) so since the hog uses turbo fan engines also is there a difference?

[Eddie]

I had a similar question, if the engines always operate at optimum rpm ect (as I've read) besides burning a lot of fuel is it bad to operate the engines at full thrust for extended periods? I know that airliners engines #I know whole different animal# aren't made to run at full thrust for extended periods. In fact they rarely are at full throttle at takeoff #airliners) so since the hog uses turbo fan engines also is there a difference?

 

Not really an issue for any military aircraft, we don't have to make the aircraft fly for as long as possible between maintenance to increase profits like civilian companies have to. ;)

[wess24m]

Not really an issue for any military aircraft, we don't have to make the aircraft fly for as long as possible between maintenance to increase profits like civilian companies have to. ;)

Perfect, thank you for the response.

[Megagoth1702]

Good to have stuck my head into some stuff that other people find interesting too. :)

[159th_Falcon]

100 cycles for the LDG Gear? What kind of craft is this? Your sure you didn't forget a 0 there?

Assume this is military A/C ?

 

In our fleet that would equal about 3 to 6 days worth of flying.

And we would kill for an DI that's valid for 3 days.

[Avilator]

....#I know whole different animal#....

 

Actually, the Hog uses variants of airliner engines, so they're not as different as you may think.

 

Also, does thrust downrating play into limits on max throttle operation?

[GGTharos]

More accurately, the airliners use variants of the hog's engines :D

 

Actually, the Hog uses variants of airliner engines, so they're not as different as you may think.