Plane too slow?

[KillerEST]

Hello!

I'm kinda new to this forum, I hope that the thread is in the right place... I have a weird problem in IL-2 Sturmovik 1946:

Every plane I fly, seems to go ~25% slower than said in aircraft information. For example; let's take SBD-3. It is said that max speed at 4500 m is 413 km/h. I get only ~300 km/h (I was flying at ~4450 m), with Supercharger in positon 2, radiator open. I know that there is a mixture setting and prop. pitch..Should I try changing them?

// Changing mixture/prop. pitch didn't help.

Thanks
KillerEST

[swiss]

Hello!

I'm kinda new to this forum, I hope that the thread is in the right place... I have a weird problem in IL-2 Sturmovik 1946:

Every plane I fly, seems to go ~25% slower than said in aircraft information. For example; let's take SBD-3. It is said that max speed at 4500 m is 413 km/h. I get only ~300 km/h (I was flying at ~4450 m), with Supercharger in positon 2, radiator open. I know that there is a mixture setting and prop. pitch..Should I try changing them?

// Changing mixture/prop. pitch didn't help.

Thanks
KillerEST

IAS vs TAS ;)

[KillerEST]

I see...So it's actually going ~410 km/h?

[EJGr.Ost_Caspar]

Much probably! :D

[TinyTim]

Check the TAS with cockpit off (Ctrl-F1). Gauges in cockpit will give you IAS, of course.

[KillerEST]

Oh yeah...And it is actually so :o

Thanks for the help.

Cool thing.

[BadAim]

Indicated airspeed is more useful than you might think as well. Say a given plane stalls at 120 kph at sea level, it will stall at roughly the same indicated speed (giving a bit of leeway for variables) at nearly any altitude. The same thinner air that is giving you a lower than actual reading on your speed indicator is also giving you that much less lift! Pretty cool eh?

BTW it's refreshing to see someone who really wants to learn, if you stick with the hobby you'll be learning a lot for a long time. I've been doing this for over 12 years and I'm still learning.

Have fun.