The International Cessna^® 170 Association

Does anyone have a copy of the McCauley SPM100 that I can use for reference? Thx!

What, exactly, is a "McCauley SPM100"?

McCauley Standard Practices Manual for fixed pitch prop overhaul details. It would have included the prop specs that you put in the MX library.

Where did you hear of the SPM100 manual? The scans I posted came directly from the "Service Manual No. 730720, FAA-DOA Approved, Overhaul-Parts for McCauley Fixed Pitch Propellers" which I obtained directly from McCauley Div. of Cessna Aircraft. They assured me it is the latest manual.

The internet of course!
NOTE: For additional Instructions refer to the McCauley Standard Practices Manual, SPM100,. 60-00-04, Protective Treatments. F. Paint the repaired area. ...
http://www.mccauley.textron.com/svcltrs&bltns/sb248.pdf

I was actually looking for prop dimension limits and paint requirements from McCauley. Do you have the paint requirements from the overhaul manual too?

skippy2 wrote:I was actually looking for prop dimension limits and paint requirements from McCauley. Do you have the paint requirements from the overhaul manual too?

Skippy, you've never seen so much B.S. and contradictory information issued by a mfr'r as the ones issued by McCauley on painting propellers. There are at least 15 different service letters and bulletins that refer to "paint according to Manual 730720" (the overhaul manual) which, by the way, is very generic and sloppy. They prefer Mil -A-8625 (anodize) especially after any caustic acid inspection, ...otherwise they specify Mil- C-5541 (alodine) prior to painting with Sherwin-Willaims polane paint. They have a drawing which is nothing more than flat black on the flat/thrust side (specifically Primer Mil-P-8585, 1-coat, then Lacquer TT-L-20, Fed STD No. 595 Color 37038 Black, 2 coats) and on the camber side (front) four-inches of the tip is to be painted with the same lacquer in color 33538 Orange-Yellow, 2-coats.

There is another para. pertaining to a different prop which is extremely-sophisticated in it's details of how many hours one applies a certain chemical, then kiss a pig* and put a "tack" coat on then turn around 3-times before final coating blah blah blah.... etc etc etc..... But the best thing to do is merely alodine, and paint the back flat black and the front grey with Tempo rattle-can propeller paint. Make the tips whatever color you like.



http://www.aircraftspruce.com/catalog/c ... opcoat.php


* Just to give you an idea of what I mean...here's only one paragraph from many that completely shows how over-the-top they are:
"Paint Scheme -see figure 1. Paint areas indicated with one coat Sherwin Williams P60G2 wash primer mixed with R7K44 reducer, allow 30-60 minutes to dry. Paint same areas with one tack coat followed by wet coats, Sherwin Willaimas Z99BB510 polane T polyurethane enamel flat black (Fed STC 595(X) color 37038) mixed with V66V27 catalyst and R7K84 reducer. Allow overnight drying time. Paint camber side only as indicated with one tack coat followed by wet coats Sherwin Williams Z99WB611 polane T polyurethane enamel white (Fed STD 595(x) color 17875 mixed with V66V27 catalyst and R7K84 reducer. Allow overnight drying time. Refer to McCauley specification MC-2607(X) latest revision for proper cleaning, mixing ratios, storing, shelf life, application, drying time, etc. Locate decal at dimension shown and center between lead and trail edges on camber side, reading as shown. After decal application, spray clear lacquer over decal + .125" beyond edges of decal. Dry film paint thickness 3 mils minimum."

However, In the same manual, a different Service Letter 1995-4A, for field repair/painting states, :
"Blade Painting after Repair:
A. Prepare repaired area for touch up paint by wiping with a MethylEthylKetone dampened cloth.
B. Apply, as required, polyurethane enamel paint per mfr's specifications and instructions to blend with original finish.
C. Recheck dynamic balance on turbine propellers."


DOH. I hope this satisfies your curiosity on how to paint your propeller.

It does George! I appreciate the information.