Quick question from a newbie-
I've got an LT-40 with a TT46; no spinner. I've just bought a Dubro prop nut to replace the regular nut and prop washer- question is, do I still need the washer with the prop nut? Seems to me maybe not, but I'm always willing to be enlightned- Thanks-
Cheers,
Brett

Prop nut, absolutely not. Your engine only came with one nut, there is no reason to run two. It's not like the TT 46 is prone to detonating and throwing the prop. Washer, that's up for debate. Personally, I say no since the Dubro nut has a large flat surface to contact the front of the prop. Others might say yes as you do not want the nut to turn against the prop face while torquing the nut. Again, personally, I run these, and other large after market nuts, without the washer and have never seen, or heard, of a problem caused by this practice.

John

I wasn't meaning to run two prop nuts- (although you gotta have nuts to fly, right?)- I was wondering about the washer- I did notice that the Dubro has a pretty good surface area that contacts the prop. The washer that I have has about a 1/16 taper, and it didn't seem quite right to butt that nut against the smaller part of the washer- I guess I'll leave at least one nut at home...
Thanks much and cheers-
Brett

I have a lt-40 with a 46 in it and i needed the extra weight to balance it so i dot a dubro prop nut. I have never needed the washer that came with and i have flown it for 1 year..

I use the washer behind my Dubro nuts.

Good luck,

Jim