Fuel for Cox Black Widow .049
#1
Member
Thread Starter
Join Date: Sep 2003
Location: Laval,
QC, CANADA
Posts: 80
Likes: 0
Received 0 Likes
on
0 Posts
Fuel for Cox Black Widow .049
Can i use the same fuel I use for my OS 46Fx/ Saito .91 in my Cox Black Widow .049?
I think the fuel I have at home is 20nit /20oil from Wildcat...
Any idea?
I think the fuel I have at home is 20nit /20oil from Wildcat...
Any idea?
#2
Junior Member
Join Date: Mar 2006
Location: curitiba - paraná-----------, BRAZIL
Posts: 20
Likes: 0
Received 0 Likes
on
0 Posts
RE: Fuel for Cox Black Widow .049
Hi Dani!
I´m a brazilian flier and I have some cox engines( .010-.049) and they work well with Heli fuels, like Wildcat HELI 30 %.
These engines need a high nitro percentage to work well!
You ´ll enjoy them!
Cheers.
Akihito
I´m a brazilian flier and I have some cox engines( .010-.049) and they work well with Heli fuels, like Wildcat HELI 30 %.
These engines need a high nitro percentage to work well!
You ´ll enjoy them!
Cheers.
Akihito
#3
Senior Member
RE: Fuel for Cox Black Widow .049
Hi Dany........25% nitro, 20% CASTOR oil, 55% methanol would be the ideal blend for sport flying. I prefer to use only castor oil, just my opinion, I'm sure others may disagree.......John
#6
Senior Member
Join Date: Dec 2002
Location: Broken Arrow,
OK
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
RE: Fuel for Cox Black Widow .049
Definitely something with some castor oil. I heard the ball and socket joint under the piston would fail prematurely if only synthetic lube was used.
#7
RE: Fuel for Cox Black Widow .049
ORIGINAL: Dany boy
George, what are you using?
George, what are you using?
When my current supply is depleated I will probably go with SIG or Wildcat (if I can get it).
I prefer 10%-15% nitro and 20%-22% all castor or half castor lube. Other mixes will work. Some folks tout more nitro. IMHO it works well but is not needed. This may vary depending on WHERE you are flying.
What you use depends partly on what you use it for. My use is mostly CL sport or stunt, some RC sport. If you are into racing you would want more nitro.
George