climbing on cessna 182

[juanca]

Hello again

Well no that I think I have the throttle, prop and mixture relationship figured out......

when I was climbing on a cessna 182 to 11,000ft, I saw that my air speed at about 7,000 ft was 65knts! , and could do very little to pick up speed until I bearly got to cruise.

vs about 400 and 700 fpm

all three levers were full (full throttle, high prop and rich mixture)

How do I do a correct climbing procedure so that I dont loose speed and risk to stall! and maintain 80knts like it says.

I'm a little bit nervous b/c in a short time I will be flying for real, and I really need to get this clear and done right

so all your help will be gr8tly appreciated!

Juanca

[IanK]

Hello Juanca,
will these charts help?

http://www.skylanepilot.net/msfs/html/SkylanePerf.htm

Ian

[papa-metro]

reduce the prop and the mixture ... or go to "settings" on main menu and select "auto mixture"
your engine is gasping for air because it is too "rich"

papa-metro usaf 1953-57

[OTTOL]

This really needs to be added to the FAQ's because it comes up all of the time. What you are reading is indicated airspeed(IAS). There is a small dial on the airspeed indicator to adjust for OAT.

[OTTOL]

........also, it is normal for climb rate to fall off as you gain altitude. You WILL have to reduce the rate on your VSI to maintain CAS(corrected IAS). The 182 normally maintains 600-1000fpm at sea level(depending on model and engine installed). You'll be lucky  to maintain 200fpm at the altitude your talking about in the real airplane. Anyone who knows the specs of the 182 can better answer this question but service ceiling is established based on a 50fpm climb rate!  What is the service ceiling of your airplane?

[juanca]

Yes I know that at higher altitudes, less air density and it is dificult to maintain IAS, but the thing is that if the needle ina the IAS guage drops, the airplane will stall (correct me if i'm wrong)

And it worries me because if I set my cruise altitude to 11,000ft, and at 7,000ft I cant get more then 60knts...

service ceiling for C182s Skylane is 18,100ft.

also at cruise altitude I get seem to get any faster the 110knts, when the cruise speed  for the c182s skylane is of 140-161knts although I maintain a full throttle, high prop and lean mixture.

how do I get more from the engine, without compromising its structure???


thanks

[OTTOL]

When you get to altitude and are ONLY flying at 110KIAS, try checking your GPS it should show your TRUE air speed and it should be 140-160kts.

Yes, your airplane will stall at the same IAS but what is your climb rate? If you decrease pitch to 70-80kts are you still maintaining a positive rate of climb?

Did you check the link?  If you go all the way up to 35,000ft, you will indicate 230kts but will be travelling through the air(TAS) at 450kts!

[juanca]

If I reduce my climb rate to 200fpm and lets say i wanted to climb to 15.000ft....it'll take for ever, and If you fly IFR they are going to end up canceling IFR because you cannot expsdite climb

[Travis]

When you get above 2000-2500 ft, pull the mixture knob out slowly.  The engine will begin to rev higher and higher (listen to it).  When it starts to back off on the RPMs again (the pitch starts dying out), push the lever back in SLIGHTLY until the sound picks up again.

Now turn on your autopilot (I know, most people think its cheating, but there is a specific reason here) and set your altitude and climb rate.  Climb rate should be around 800-1100 fpm.  Now sit back for a moment and watch.  As you climb higher, keep pushing the mixture knob in SLIGHTLY, maintaining that high pitched sound.  If you reach the desired altitude, all is good.

What I think your issue here is that you MIGHT have the trim set high enough that while you're trying to climb its actually fighting you.  This could have happened when you saved a flight and made it the default, with the trim set just above normal.

Or I could be completely off base here, telling you things you already know and being a complete nuisance.  If so, just tell me to go dunk my head . . .

[Jamie]

Hi Juanca ,
I used to own a 182 Skylane , but has been sometime and have not flown in 10 yrs.  That was the finest plane I ever owned .  You normally don't climb above 6,000 ft. unless you are in high country or need to get to cooler smoother air .   It is wise to climb at full throttle making sure the manifold pressure does not exceed your RPM's .   If you are climbing at 25" of manifold pressure and 2,300 RPM , you are increasing the pressure in the cylinders ( lugging the engine ) and is damaging .   As I recall , I used to climb at about 25/25 .

Strangely enough , full throttle makes for a cooler engine ( rich mixture ) .  As you climb , you need to back the mixture out some as was mentioned in a reply above to maintain power .  You need to be careful not to climb too steeply and just have to be patient in smaller aircraft .  You need to keep cooling air flowing over the cylinders .  It is also damaging to an engine to pull the throttle all of the way back to descend .  That causes excessive cooling and can " squeeze " the pistons since the cylinder cools more quickly than the pistons .  

I think the GPS reads ground speed , but did not have one in those days .  An EGT ( exhaust gas temperature gauge ) is used for accurately leaning the mixture .  You pull the mixture back until it peaks on the dial and then rich it up approx. 100 degrees ( push it back in some until it shows about 100 degrees cooler than peak )  .  

LIke I say , it has been quite sometime since I have flown and hope my information is sound ??  Always be sure to visually check the  level of fuel in your tanks because gauges can be unreliable and also check the oil level .  I think my 182 burned about 13gal/hr. so keep track of time also when flying .  Always drain fuel before each flight to check for water .  Prior to takeoff , move your controls and observe that everything is moving freely and in the proper direction .  * Double check that you have your fuel selector in the proper position .  

Hope this helps ,

Jamie

[juanca]

GR8!!!!!!!!!!!!!!
EXCELLENT INFORMATION

THANKS