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Cox Engine of The Month
dubro cox spinner
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dubro cox spinner
how will this affect rpm on a golden bee with a black widow #1 cylinder and piston?
thanks
thanks
mitchg95- Diamond Member
- Posts : 2103
Join date : 2011-12-19
Age : 28
Location : Geneva, mn, USA
Re: dubro cox spinner
http://www.ebay.com/itm/Du-Bro-Cox-Spinner-Prop-Nut-DUB777-/160527785025mitchg95 wrote:how will this affect rpm on a golden bee with a black widow #1 cylinder and piston?
thanks
If that's it it should be fine. It says it comes with an aluminum screw, but I think that's a misprint, the picture looks like a black oxide steel screw which is what most of us use.
Here's the package.
http://www.hobbylinc.com/htm/dub/dub777.htm
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: dubro cox spinner
I have one of the Dubro spinners,,very, very heavy. I would avoid them.
PV Pilot- High Tech Balsa Basher
- Posts : 1854
Join date : 2011-08-11
Age : 57
Location : The ragged end of the Universe.
lousyflyer- Gold Member
- Posts : 342
Join date : 2012-06-25
Age : 64
Location : Garden City Ga
Re: dubro cox spinner
11 grams... Wow.
Not very practical unless you have a very tail heavy airplane!
Not very practical unless you have a very tail heavy airplane!
Re: dubro cox spinner
wow 11g's ill just use that on my slower engines, not on my speed gb
mitchg95- Diamond Member
- Posts : 2103
Join date : 2011-12-19
Age : 28
Location : Geneva, mn, USA
Re: dubro cox spinner
I posted this early this morning but I must have forgotten to click Send. But I'll try again:
Unless you like to fly slow and peacefully, this would be a good one to avoid. The weight of the spinning mass is extremely critical to the planes ability to perform aerobatics. If you ever need to add front end weight for balance, a little more weight back closer to the CG performs better than a slightly lighter balancing weight extremely far forward. In front of the prop is the worst place you can add weight.
I learned that from this article:
http://flyinglines.org/mckay.trimming.html
Unless you like to fly slow and peacefully, this would be a good one to avoid. The weight of the spinning mass is extremely critical to the planes ability to perform aerobatics. If you ever need to add front end weight for balance, a little more weight back closer to the CG performs better than a slightly lighter balancing weight extremely far forward. In front of the prop is the worst place you can add weight.
I learned that from this article:
http://flyinglines.org/mckay.trimming.html
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: dubro cox spinner
That big spinner is like a tuning fork on your crank. I tried mine on a old Babe Bee and once it came up to rpms, it was vibrating big time with a well balanced prop. Shut it down, took it off and tossed it in the parts bin.
PV Pilot- High Tech Balsa Basher
- Posts : 1854
Join date : 2011-08-11
Age : 57
Location : The ragged end of the Universe.
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