-=> Quoting Ken Ellison to All <=-
 KE> I have a question that I have asked so many and everyone at the
 KE> local flying field here has a different answer.  First, my question,
 KE> is there guide lines that a person could go by when trying to decide
 KE> what propeller to use with a particular size engine???  I have bought
 KE> several used engines and I cannot figure out what is the right prop
 KE> to use and which is wrong.  I have the following types:  OS .10,
 KE> TIGER .40, K & B .61, and a .25 .......    If someone could tell me
 KE> what the proper props are to use (and what makes one different from
 KE> another) I would greatly apprecaite it....
 KE> 
 KE> Thanks   Ken >
 KE> 
 KE> ***
 KE> * SLMR 2.1a * "Please return stewardess to original upright
 KE> positions." 
Ken,
All of the engines that I have worked with, both 2c and 4c, gives a range of 
recommended propellars to use.  These will vary in pitch and diameter.   
Putting to big of a propellar will cause the engine not to reach the peak rpm
for that engine, and causes the engine to work harder and wear sooner.  
Putting to small of a propellar on an engine causes the engine to have to 
any
rpms which will cause the engine to overheat and shorten the life of the 
engine.  
Work with the dia x pitch of the propellar range specified by the 
anufacturer
until it performs to the way you like to fly.
MIke
... Instructors keep it up longer
--- Blue Wave/TG v2.12 [NR]
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