Hi all, I don't know where to post this but since it's for combat planes, so here ..

can any body tell me what size of du bro spinner for .15 engine with 8x4 prop ? also size fo .25 engine with 9x4 to 9x6 prop.
Hobby shop is 700 km away from here and the store people knows nothing. So I figure you guys can help

Thanks in advance.

Depends on what you want to do and why.

If it's a scale plane, then the spinner is set by the airplane.

For open / non-scale planes, we usually use spinner nuts rather than plastic spinners since you can change a prop much much faster with just the spinner nut on there. Dubro, Higgly, and others make some good ones.

Basically spinner size isn't really determined by the engine at all, it's deterimened by the plane and what you want to do with it.

I'm just trying to get a good match for the prop. the spinner am talking about is the cone shape one, and you can't put 1 1/2inch spinner with 15inch prop can't ya ?
Thats why I'm asking if any body would know a spinner just big enough for those prop.

Ok, if you're talking about prop cutouts, then somtimes it's just a matter of cutting the spinner to make the prop fit. Especially since it depends a lot on the brand of prop.

I use a dubro 2.25" spinner on my 2610 and 2548 scale combat planes, and that works well with a 9x4 MAS and 9x4 APC. I can't say if it will fit for a different pitch though, since different pitches of the same prop will often have differnet shaped hubs. So it might or might not work with the 9x6. I did have to dremel out the spinner a bit to make the 10x3 APC props fit, but the MAS 10x4 GF/2 fit with out modification.

As for the 8", I never run that size prop with a spinner anyway, so I don't know. I suspect 2" will work, smaller might or might not.

Ok.. thanks Kirk for the input. I wish there is a hobby store here everything would be easier.
Thanks again