Propeller Model: 69CKS12-0-48L, 49L, 50L, 51L, 52L
Static RPM: 2320 to 2470
See below for Installation Instructions for this STC
The 69CK series propeller was the first propeller chosen by Cessna for the original Cessna 150. This propeller was Type Certified for Cessna 150, through 150K . During this STC process a new pitch distribution was discovered that would increase the propeller's performance SEE SERVICE BULLETIN R-16 . This new pitch distribution can also be used on the original Type Certified models.
When ordering for first time use an 'S' prefix (S69CKS12-0-50L) to receive the entire package. The complete kit includes a NEW SPINNER.

US WITH QUESTIONS]