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IL-2 Sturmovik The famous combat flight simulator.

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  #1  
Old 11-15-2012, 08:27 AM
JtD JtD is offline
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No, mass does not change with g. Weight does.

Last edited by JtD; 11-15-2012 at 08:30 AM.
  #2  
Old 11-15-2012, 08:40 AM
K_Freddie K_Freddie is offline
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Ja, you're right.. Sorry, I forgot for a moment
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  #3  
Old 11-15-2012, 10:06 AM
K_Freddie K_Freddie is offline
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I got a bit curious seeing that we're on about the Spit-vs-FW190. decided to have a look at the specs on wiki (if you can trust such a source - no smoke without a fire)

2 specs I find interesting are loaded weight and max takeoff weight. In both case on wiki, the Spits (Vb and XIV) loaded weight is only around 250Kgs below max takeoff weight. whereas the FW (A8 and D9) is a whopping 500Kgs. This is for a heavier aircraft with a weaker engine ??

This make me think that the Spit when loaded is simply flying closer to it's limit of staying in the air, than the FW even with it's higher wing loading. Which might encourage Spit pilots not to get happy about tight dogfights and rather use hit and run, which seemed to be the norm in the latter part of the war.

Something to think about
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Last edited by K_Freddie; 11-15-2012 at 10:10 AM.
  #4  
Old 11-15-2012, 11:04 AM
JtD JtD is offline
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Maximum take off weight has nothing to do with the ability of the plane to 'just stay in the air'.

Additionally, figures on wikipedia are wrong, for instance loaded weight (8488 lbs) is used for the stated Spitfire XIV maximum take off weight (9278 lbs with 90 gal drop tank).
  #5  
Old 11-15-2012, 11:20 AM
K_Freddie K_Freddie is offline
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You'll find an airline pilot will not take off if his a/c is too heavy (close or beyond recommended takeoff weight)... there must be a reason for this.
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  #6  
Old 11-15-2012, 11:56 AM
JtD JtD is offline
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Yes, there is. In fact there are several.
  #7  
Old 11-15-2012, 03:28 PM
MaxGunz MaxGunz is offline
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If you don't take into consideration what the takeoff speeds, runway lengths and air density are then you won't get much out of takeoff weights.

It's like when The Joke would say that more weight on a plane makes the plane faster because hang gliders fly faster with ballast. Yes the gliders do, because if they don't fly faster they will stall when the unballasted, slower glider is still not stalled.
But -powered- airplanes don't get their energy from their weight, they can go faster using the spinny thing up front. More weight just makes their wings have more drag, which BTW is not proportional to wing loading.

Last edited by MaxGunz; 11-15-2012 at 03:33 PM.
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