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Just a little more fuel for the fire: Check the McCauley type cerfificate (P-842). The 1A/B90 installed on the C85 has a maximum diameter of 71 inches. The same prop installed on the O200 has a MINIMUM diameter of 71 inches. the caption reads, in part, "The maximum and minimum propeller diameters that can be used from a vibration standpoint are shown below. No reduction below the minimum diameter listed is permissible..." They also specify "85 hp and 2575 rpm or less." This may be the most important issue, assuming you scoff at operating limitations... ;~) John ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers-tech/
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