Weed 1, propeller 0

[spangle82]

Well my 1/24 MTB had its first test launch last weekend in its complete form. Unfortunately there was some blanket weed on the boating lake, it ran into a small patch and after trying to reverse out it lost way and then refused to move in either direction. Thinking an RC failure, I waded out and found - no prop! Much paddling about failed to find it.

Props are cheap to replace - except that mine is BA and all the ones I can find online are metric. Can't change the shaft.

Is it possible to buy BA props, or perhaps to get an adaptor to the next largest metric size up? A 3-blade brass one would be ideal as it would look more scale than the black plastic 2-blade that was on it, but I may not have the luxury of choice.

Thanks for any ideas!

[dr_gn]

Run a BA Tap through a metric prop and hope for the best?

Drill out a metric prop and use a BA Helicoil insert?

[spangle82]

Thanks dr_gn, I have some BA taps so would just need to find a prop with metric thread smaller.

How best to make sure it doesn't come off again? A grubscrew in the side?

[The_Jackal]

Have you tried talking to the Prop Shop.
It was just on Google and they seem to keep most of their stock as raw castings and prepare them as needed. I would have though they could machine exactly the thread you need onto whatever prop you want.

[100SRV]

Is there any benefit in having a slipper clutch to save losing another propellor? You could set it fairly tight but lose enough to slip if the propellor fouls.

[spangle82]

Just wanted to say that a super hand-crafted 3-blade prop arrived today from the Prop Shop https://www.prop-shop.co.uk/

About £12 inc postage and retaining grubscrew which I think is very fair for a handmade item.

Not the best website for browsing products but the owner Simon is knowledgeable and efficient - highly recommended. Thank you the Jackal for mentioning him!