Can I use these props?

[spindeepster]

Okay...so I had one of these first.

www.hobby-lobby.com/images_products/1034190_large.jpg

Before I destroyed it completely, I crashed it and broke the propeller. With that, I bought ten of these 9x5 Direct Drive Props.

www.hobby-lobby.com/images_products/1035195_large.jpg

Can I use these props on my SC? I have bored out the center hole to accomodate the prop shaft so it fits, but I don't want to risk burning up my motor. I hate to throw away 9 props because I don't have the plane I bought them for anymore.

Thanks for your input!!

[flydiver]

You want to use them on a stock PARKZONE Cub....right?
The one you linked to was not.

They will work. It'll be underpowered a bit.

[spindeepster]

Yes. As stated, the plane in the pic was destroyed in a crash. I am now flying (trying to fly) a stock ParkZone SC.

[flydiver]

The 9x5 are 'skinny' direct drive props. For equivalent to the stock 9x6 slow fly (fat) you need a 10x6 direct drive.
But, those should work. You won't get as much power but you may actually get a bit better efficiency translated as slower take off but a bit longer flights at part throttle.

[spindeepster]

Thanks for the info. My SC came with a spare prop but as stated in the beginning I have nine of these 9x5 props. I figured out on my own (I think) that I would compromise power, but as I am in the learning stage, slower speed and longer flight time per battery charge would be a good thing. I just don't want to damage my motor in the process.

i19.photobucket.com/albums/b172/spindeepster/561803_430002270381384_765533324_n.jpg

[flydiver]

That prop in the picture looks like the old stock 10x8?
Or am I just seeing it wrong.

The 10x8 can/may burn up your motor.

The size (A x B) designation only tell part of the story. Real amp draw is related to pitch and surface area. 2 props having exactly the same size designation can differ significantly in amp draw.

[spindeepster]

No, the prop in the picture is a 9X6...as is the spare that came with the plane.