Fox 049

Got an email from Henry of the Virginia Hobby shop fame. Here is what he had to say about the Fox 049.
These engines are assembled by H&R Engines in Kentucky. They bought the old inventory from Duke Fox years ago when he decided Cox could do it better and cheaper than he was. From that point on Fox engines produces nothing smaller than .15 . H&R Engines assembles the engines and check for proper fit then bench runs for a moment and packages them for sale. As a dealer he sells to me so that I can sell to you at same price he would. Engine's are guaranteed to be solid runner or he will repair no charge. I do not make any claims about its collectability so if you are looking for a perfect engine with no production blemishes I can not help you. If you are looking for an engine that has not been used only tested these are nice engines. they have similar power to Cox Black Widow @18700 RPM's with a 5x3 prop a 4.5x4 would be better but hard to find

Jay: Fox .049s are great motors. The one that you show is the second generation one, as evidenced by the flutes on the case.

These are a bit hotter than the 1st Gen ones, maybe good for another 500 rpm, but have very aggressive shaft timing.

Translation...(You thought Cox reed valves ran backwards a lot)? The 1st Gens are a lot more docile, and almost as powerful, and often more so (see below).

Anyway, I know Henry (great pit man for my Bel Air in the '02 Musciano Team Race event), and I'm sure that H & R puts out a fine motor.

I have played with these Foxes a bit. There is more variation within a generation than between generations. If you are an inferential stat guy, this means that the mean difference between these two types has to be "large" before you can say with confidence that one really is stronger than the other. By the way, my best on a 5-3 so far (dead stock) is around 19K rpm (second gen).

The prop of choice for these little gems is the APC 4.75 X 4. Puts everything else on the trailer, in my opinion (the TE of the prop might put your finger on the trailer, too). And they are easy to get; just go to APCs website. Currell

>Anyway, I know Henry (great pit man for my Bel Air in the
>'02 Musciano Team Race event), and I'm sure that H & R puts
>out a fine motor.
>

You can buy H&R with confidence. The "H" is Randall Hopkins, and the "R" is Richard Reikel. Sadly, Richard passed away a few years ago. A fine gentleman and a loss to the Free Flight community. Randall continues the business, and a finer gentleman you'll never meet. He'll make sure you get a good engine. And yes, I'm biased. Randall is a long time friend. We share a common passion for CO2 power.

>>> Jay: Fox .049s are great motors. The one that you show is the second generation one, as evidenced by the flutes on the case.

Does this apply to the FAI Special version also?

>>>These are a bit hotter than the 1st Gen ones, maybe good for another 500 rpm, but have very aggressive shaft timing.

Might Fox have used some FAI Special parts in these?

Is there a web site or a price list I could check out? I have a early Comet, early Fox and wouldn't mind adding the last version.

http://www.virginiahobbysport.com/engines_and_engine_accessories.htm
That is the link for Virginia Hobbies.
Jay

LAST EDITED ON Oct-03-03 AT 08:30 AM (CDT)
 
Currell,
Are the 049s like the 07s? Different shape intake on the crank for different fuels (FAI or nitro)? Is this part of the generation difference?
Bill P.

Nevermind, I just checked the VA web site and the question was answered. I presume the non FAI version says to use 25% nitro?