Check ride

[carqwik]

I landed at LBL once...wind was blowing (isn't that typical for LBL?) and the runway I landed on was made of concrete squares.  I felt every expansion joint in my butt!

[N5756v]

I landed at LBL once...wind was blowing (isn't that typical for LBL?) and the runway I landed on was made of concrete squares.  I felt every expansion joint in my butt!

Yep always blowing I believe that LBL was an old bomber base of some kind and that's why the runway is so thick

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[N5756v]

The instructor says he has knowledge about the engine management system .

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[jlunseth]

Have a great time and be sure to report back!

[N5756v]

12 hours ago, jlunseth said:

The intercooler will not be in the POH.  It is an aftermarket installation, so it would need an STC, or I suppose a 337, but the intercoolers came with an STC.  If you have an intercooler, it should have come with a table to adjust MP based on the amount of cooling of the induction air being provided by the Intercooler.  If you got logs and documents it will be in with those.  There are a couple of clues without taking the cowling off.  There should be an intake scoop in the right side of the lower cowling, above the turbo.  You would probably also have a differential temp. gauge somewhere on the panel.  It is a digital readout.  The best way, of course, is to take the cowling off and look.  

The POH will tell you that the fuel flow should be 22-24.5 at max power.  It will also tell you that 40" is max MP.  It won't tell you how to adjust to get there though.  As I said, don't firewall the throttle at takeoff or you will see more than 40".

This was in the POH and I don't know if this is what your talking about . I know you said it was not in the POH so I don't figure this is what your talking about but just checking 

[jlunseth]

Yes, that's it!  I have the STC and a table, so didn't think there was an AFM, I guess it depends on how long ago the installation was.

At any rate, you should do a couple of things.  First, make sure the intercooler is still in the plane!  Sometimes things get removed but the stuff in the POH is not also removed, important to know what you actually have in the plane.

Then assuming you have one, your MPs change from the standard MP in the POH tables (I am talking about the main part of the POH, not your Flight Supplement).

There should be a differential temp. gauge somewhere on the panel that will tell you what the temp. drop is for the intercooler.  The intercooler is basically a radiator installed after the turbo and before the induction system.  It cools the induction air that comes out of the turbo, and the cooling is fairly significant.  I routinely see cooling of 100 dF or more in cruise.  Cooling the air makes it denser, and therefore lowers the MP needed to produce a given amount of horsepower. 

I see your POH tells you basically what I was saying - with the intercooler installed you want to use 36" as your max MP on takeoff, rather than the 40" in the main part of your POH.  Actually, there is as much art to this adjustment as there is science.  Since the plane is not moving at the start of your takeoff run, you are not getting a lot of cooling flow through the intercooler, just what the prop blast is producing, so the cooling effect is probably not -75dF.  But as your run picks up speed you will get better cooling.  Don't worry about that part, just use 36" and it will work fine.

 

[carusoam]

It's a real comfortable feeling you get when you find the previous owner has all the supplements organized and stored in all the right places...

also check for the systems like AP, speed breaks, engine monitor and nav equipment...

Study up, take good notes...

Best regards,

-a-

[mike_elliott]

1 hour ago, N5756v said:

The instructor says he has knowledge about the engine management system .

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Good, he can give you a complete understanding of bootstrapping, critical altitudes, effects of the temp drop of the intercooler, overboosting scenarios etc before you scatter puddles of Aeroshell and AMU's all over our pristine earth  May I suggest you ask him to ground school you well in this prior to flight?

[N5756v]

Sounds like good advice I think I will do that mike . I think it's going to be a long few days . Thanks JL

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[N5756v]

Tbh been reading up on the POH for a couple of days and I am hoping I did not bite off more the I can chew with a K , the turbo definitely has me a little nervous but I am hoping that feeling goes away when the instructor starts instructing .

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[Samurai Husky]

I dont think there is anything that time wont fix. The problem i see is that it sounds like the instructor is only in town for a 'few days'? If so i think that adds a lot of pressure to absorb things.

If he is local, then just go at your own pace to be safe. If you dont get it in 10hrs or 20hrs or 30hrs then be ok with that. Its the price we(loosely used) pay as newly minted PPLs for choosing a complex plane

I personally cant wait until i get to where you are now! Stress and all!

[jlunseth]

Don't fear the turbo or the effort to control it in the 231.  It is pretty easy to learn, and becomes second nature quickly.  You will get it in a very few hours.  My reason for jumping in to start with is that, as a couple of us have said, it is a different bird, and you can make some mistakes by using NA techniques, or techniques that come from using an automatic wastegate turbo, that can hurt the 231.  That auto wastegate turbo let's you set an MP of "x" and it will then keep "x," in your plane you are the keeper of the MP.  Keep the CHT's under 400, and better yet under 380.  Keep the TIT below redline, and preferably below 1600.  Keep the red knob firewalled during takeoff and climb (not the throttle now, the red knob).  Lean it out some during your approach.  You will be fine and so will the plane. 

[N5756v]

The instructor is here until I get it I believe and if that 3 days so be it but if it's 6 that's ok to lol

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