Little insight as to what may have happened?

[Alessandro Garabaghi]

We were filming with a Motly Crew and go pro, and the boat lost power randomly upon inspection both blades were clean broken off

zJWd0SUh.jpg

This is what we ended up capturing which i thought came out kinda cool:

https://www.instagram.com/p/BvbtyghBBkd/

Suggestions on a replacement prop?

[Alessandro Garabaghi]

guy at lhs said that was normal for the plastic props lol....

so i picked up a metal x440 octua and a few plastic spares....

[Beaux]

Seen that happen on the been, almost stuck in my grandson's leg . No plastic
maybe a rescue boat. Anyway have fun.

[Alessandro Garabaghi]

what?

[Beaux]

Yes bench testing a boat before we left and about half throttle it broke off.

[Alessandro Garabaghi]

ah!... yea LHS guy was not phased by it, said it happens to plastic props and to upgrade to metal one

[fweasel]

I wouldn't run that Octura prop raw (straight out of the package). They need to be balanced at a minimum to help prevent an imbalance and wearing out your strut bearing, and sharpening will improve performance. If you're not looking to spend a lot of money on props, but want an upgrade over plastic, you can get CNC aluminum props or Graupner Carbon (plastic composite) props inexpensively from OSE in that size. Neither needs to be balanced or sharpened.

[Alessandro Garabaghi]

nice i will check it out. I have balanced multi rotor props etc... i assume it is similar, but you just remove material instead of adding?

[Alessandro Garabaghi]

which would be a similar graupner prop to the x440?

[larryrose11]

these could work:
https://www.offshoreelectrics.com/pr...d=ose-2bld-316
Select the 40 mm diameter.

the Graupner prop:
https://www.offshoreelectrics.com/pr...od=grp-2317.40