Tracking a Prop

[Runtoeat]

Does anyone have a simple method to statically track a propeller?  I'm thinking of just removing my upper spark plugs to make the prop easy to turn and have a pointer on a stand which is in close proximity to the prop tips and indicates how far the prop tips are as they pass by it.

[Jacques]

Hi Dick,

you don't need to remove the plugs.

Put the parking brake and install a block, tool box or anything high enough to reach the prop tip.

when turning s l o w l y , bring the tip down vertically and approch the 'block' almost toughing the tip

when your position the 2 other tips, you want them at the same distance when at the same spot

 

that's my method...

 

just had a look on Utube  and found that

 

 

looks pretty much like what I do

[Runtoeat]

Hi Jacques, thanks for that video link. 

 

Hi Roger, I've got a few other questions for you.  I'll give you a call.

[Skywalker]

Roger, i am wondering if you can explain the variables in how the ctls prop can be adjusted for various pitches that would affect cruise ,climb. ,or max speed..I believe my ctls ,which was purchased From Fla. had the prop adjusted.I have to fly with throttle at firewall to get 5400 rpm 110 knots and 6.4 gph.The plane and engine are perfect no problems new hoses and the engine is smooth and starts with a flick of the key.i thought I saw an adjustment reference to17 degree plus but don't know if that is accurate. Would you mind giving me your expert analysis and anyone else who has an opinion chime in.I would think this to be an important issue since we are all interested in max performance measured by efficiency.I would like to gain max speed without jeopardizing the engine or completely losing climb, which is excellent.Also seems like high gas consumption for 110 kts.

[Ed Cesnalis]

You can gain max speed while improving climb and economy.  Your pitch is currently too coarse and you are unable to realize the highest power settings.

 

Your prop can only be set to one pitch so you need to pick an altitude for optimization.  7,500' is a good target because that is where your best performance is.  Out West 10,000 or higher might be better.  I advise limiting the adjustment to achieve 5,500RPM at your target altitude, I bet Roger might advise a little flatter yet.  To optimize for take off and climb performance you would want to achieve 5,800 rpm at your target take off altitude.  Optimizing for cruise will still give you improved climb so that's what almost everyone does.

[Doug G.]

So, Roger. If you were planning a trip west over the mountains from the flatlands, would you re pitch just for that trip?

[Anticept]

 

 

 

Ugh, I hate the sound of mouth noise in sound recordings.