RE: fox engines ???
I have been sitting on the sidelines because my opinion is very bias. I have been flying Fox for years and they sponsor me with the gas engines for my giant scale planes. Like I posted in my other note "if it weren't for Duke where would this hobby be" he developed nitro fuels, the glow plug for the motors and many other innovations that the made in China companies have copied. Fox motors are made by hand here in the united states keeping Americans employed, you cant say that about the other companies, even the big gas everything but the reeds and the carb are American made. If you are close to the plant stop in and also know they still mix fuel there and some of the Fox fuel blends that the motors like so much are still made there at the plant, in other words yes you can get fuel there too.
I have one of every motor Fox manufacturing has made, and the .46 and .50 are stump pullers, I fly them on my profiles that I practice 3D with and think they have better transition than a 4 stroke in my opinion. Yes the motors are not plug and play, but if you have ever seen someone trying to set up a pumped 4 stroke the fox is much easier, lol. I also have the .74 Eagle on a profile and once I got it where I wanted it I do not think even a big 4 stroke can compare, maybe I should build a 40 size war bird and prop it for speed with the .74 and see what it will do on the radar gun, it wouldn't be any different that the guys putting a 140 or 160 supercharged pumped 4 stroke on one, and it would be lighter than the big 4 banger. Like all the racers have said over the years, weight is horsepower, I even fly the .15 & .25bb in my pylon planes because I am lower in displacement but still win because I am turning the same prop 200 more rpm's than the competitors .35 but like stated earlier, I use the Fox fuel and run my motors rich except my pylon motors and they still are a little wet.
Now one thing that everyone overlooks, Fox dose GAS. They build everything from a awesome 50cc to a 150cc and beyond, I love my Fox gas because I have won a lot of bets, cc for cc and prop for prop I turn 200 or more rpm's over all the competitors. My planes come out of a hover like a rocket, and I own all of the competitors motors and fly them to compare them to what Fox has. The 150 in my 42% plane swings the same prop as the competitors 170 and 200 and people make comments like "that can't be the 150, it must be the 200 you guys had in the 50% Lazar" all the time. But no it is the 150, and my 50cc runs like a 3.7 ci instead of a 3.2 (52.33 cc) and it loves a 24X8 but I keep a 22X10 on it because it spools up a little faster for 3D. But that is enough said.