Prop's, which one??

[broken_parts]

Ok i didnt know where to post this at... But anyways my problem is this, Im making a hovercraft and need to get my hands on a 6x3 Pusher prop, but i cant find one at tower.... here are some links to the props i found...

Thanks For all the help
BP

Link 1 (http://www2.towerhobbies.com/cgi-bin/wti0001p.pgm?Q=1&I=LXBCH2&P=7)
Link 2 (http://www2.towerhobbies.com/cgi-bin/wti0001p.pgm?Q=1&I=LXB483&P=7) Link 3 (http://www2.towerhobbies.com/cgi-bin/wti0001p.pgm?Q=1&I=LXK480&P=7) Link 4 (http://www2.towerhobbies.com/cgi-bin/wti0001p.pgm?Q=1&I=LXZ945&P=7) Link 5 (http://www2.towerhobbies.com/cgi-bin/wti0001p.pgm?Q=1&I=LXLF63&P=7)

[Dave Robelen]

Hello BP,
I have seen a 6-3 pusher made by Tornado. The company calls themselves the Grish bros. I believe.
Regards, Dave Robelen

[TRASKOS]

Coukd you reverse the rotation of your motor? You could use a tractor type prop. then.