Sport Cub Propeller Comparison Chart

[Becky Teerink]

This chart summarizes prop data after recent flight testing on an S2 Sport Cub:
O200PropData.jpg

[Pokette]

Thanks for finding this Jason; Is there a retrofit to go from the wood prop to the Catto? ie any more parts needed?

[Jason Tepool]

Thanks for finding this Jason; Is there a retrofit to go from the wood prop to the Catto? ie any more parts needed?

The way I understand it is no. I'm still waiting to hear more info on any parts differences from one prop to the other.

[Pilawt]

For what it's worth, here's a comparison between the standard S2 wood prop and the Sensenich composite at 50 pitch. First, with the wood prop, enroute to YKM to have the prop swap done:



And the next day, with the new prop; same loading, same atmospheric conditions, same altitude ...

[randylervold]

Wow, that's pretty cool Jeff! I just love controlled tests where good data is collected. Nice immediate feedback on your upgrade investment too.

[JohnM]

Great stuff coming to light in this thread.

I have alway thought that the wood prop, while a nice retro touch, hampered the performance of the SportCub. I did not have any empirical data to support my opinion but the wood propped SportCubs that I have flown were good looking dogs.

The ground adjustable Sensenich would be my 1st choice but the metal McCauley did OK, too.

I would like to fly a SportCub with the 48" key in the Sensenich just for grins for a comparison.

JM

[couleeone]

I am sold on the 46 for backcountry and density altitude been using it for over two years and love the thrust of the 46 for STOL contests!

[RanRan]

I am sold on the 46 for backcountry and density altitude been using it for over two years and love the thrust of the 46 for STOL contests!

OK. When you say that, does that mean STOL contests at high density altitudes, or in general? I admit to being really ignorant about propeller theories to the point that I don't understand why engine manufacturers can't or don't provide the perfect propeller for their engines the way auto guys match their transmissions. It's a drive-train no matter how you slice it. Aviation is such a strange world.

Ran

[Springloaded]

Great stuff coming to light in this thread.

I have alway thought that the wood prop, while a nice retro touch, hampered the performance of the SportCub. I did not have any empirical data to support my opinion but the wood propped SportCubs that I have flown were good looking dogs.

The ground adjustable Sensenich would be my 1st choice but the metal McCauley did OK, too.

I would like to fly a SportCub with the 48" key in the Sensenich just for grins for a comparison.

JM

Hey John
I have a 48 in mine Im sure I will run into you some were you can take it up.Tryed 50 ,48,46.
I think in my plane the 48 pulls way harder than than the 50 or 46.46 felt like it just wasnt getting enough bite and would red line in a second if you werent in max climb.50 works well but doesnt have near the take off like 48.I havent taken a trip with 48 yet but it seems i will only lose a couple of knots at cruise & ? fuel burn.When you retract flaps its like somebody kicks it in the ass. My choice local flying at sealevel.
Chuck

[Centmont]

I agree with John. The wood prop that came with my Sportcub, especially when matched with 26" tires, was a "good looking dog". The sensenich ground adjustable prop performed much better when I added it... then when I got Bart to work on the pistons, cylinders, I had to add 4" more prop-pitch with cartridges to keep from red-lining. With 4-n-2-none exhaust, sensi prop, and Bart performance... that little airplane would really fly. R