337 Skymaster Propellers

We specialize in Skymaster Propellers
We have most of the parts for the Skymaster propellers
We stock many serviceable and or overhauled Skymaster propellers

MT Propellers for Skymaster ​​
  • D2AF34C303
  • D2AF34C305
  • D2AF34C306 - 300 SOH
  • D2AF34C307
  • D2AF34C308
  • Other Hubs, Blades and Parts​
For more information about your specific Skymaster Propeller needs

Comparison of 3-Bladed M.T. vs. 2-Bladed McCauley Props

3-Blade versus 2-Blade Propellers FLIGHT TESTS:  Performed on 25 January 2002 in Nashville, TN
Comparison of 3-bladed vs 2-bladed propellers on Normal Aspirated 1968 Cessna 337, N2636S

Configuration:  Full fuel tanks, 2 passengers, and baggage for both flights.

First flight = 3 bladed props
Second flight = 2 bladed props

Pilot: Steve Lloyd
Tests Results Recorded by Owen Bell

RESULTS:
3 Bladed M.T. Props showed significant advantages vs 2 Bladed McCauley Props
Noise Reduction at the same power settings
  • 1 Decibel less noise during Taxi
  • 3 Decibel less noise during Climb
  • 4-5 Decibel less noise during cruise at 6500 ft

Performance improvements at the same power settings
  • ~3 seconds less ground roll on take off run
  • Propeller Synchronization much easier to maintain during climb and cruise
  • Rate of climb = no significant change
  • Cruise speed = no significant change

Weight reduction
  • 60 lbs lighter (30 lbs each prop)

Time between Propeller overhauls
  • Significantly longer (thus reducing the hourly operating costs)
  • 6 years or 2000 hours vs 5 years and 1500 hours

Appearance
  • Upgraded, modern, and stately

In case of propeller strike
  • Increased safety and less potential damage
  • Significantly less likely to bend prop flange or break crankshaft

Summary: 3-Bladed M.T. Propellers were flight tested and compared to 2-Bladed McCauley Propellers and found to significantly reduce weight, noise, and ground roll time to take-off. There was no significant change found in rate of climb or cruise speed. Overhauls are needed less frequently (every 6 years/2000 hrs vs 5 years/1500 hrs) thereby reducing overall operating costs. In addition, the 3-Bladed props are less prone to bend or breakage in case of propeller strike therefore increasing safety and decreasing potential other damage.
Description                                            Price                                                             


2 Bladed McCauley Prop                      Call                                           


Spinner                                                     Front ~$ Call
                                                                      Rear - $ Call


Bulkhead                                                  Front ~$Call
                                                                      Rear ~$Call
3 Bladed M.T. Propeller         ~$15,000 to $19,000 each, includes new spinner and bulkhead         
                                                           Add $900 each for Nickel leading edges   
                                                      
                                                    Shipping from Germany = additional cost


                                                        $1500 extra for hot front prop       
                                                    Up to $2,500 trade in value for each of your 2 bladed props  ​