This has generally been my thought for a long time. And even when it comes to high or low mount front wings, that at a certain point, between the front wing and the shock tower, there is little that the body itself would be doing head long into the wind.

There is very clearly SOME aerodynamic effect the body has, but why and to what extent has always intrigued me. In my mind, i think the majority of any effect on the body aerodynamically would happen at extreme yaw angles in high speed corners, where most of the bodies side profile would be into the wind. And how much flat surface is being presented can make a big difference in stability, even if it is not a CFD optimized shape. Like a P2 with the fin, might feel more stable than the S2 with the lower profile greenhouse and stubby fin.

I am no aerodynamicist, but i love race car engineering, and have studied a lot of the basic principals of aerodynamics, and understand how some interactions happen, and why. I find it fun to think about, and think it would be something that would be interesting to test on some level, just so there is some definitive answer out there, instead of just anecdotal hyperbole about why something works one way or another.

I think you are spot on with most of this and it would be pretty cool to see proper test.

As much as we think the P2 produces aero stability, I believe part of what we "feel" could be related to the CG changes between the 2 bodies as well .

I have the utmost respect for you answering these questions honestly instead of putting the company hat on to "sell" us on aero benefits of these bodies. Too much "trust me bro" going on in RC marketing these days. Thank you PW!

Couldnt have said it better my self.

There is so much secrecy in "how the sausage is made" in a lot of things related to the RC industry, that it is refreshing to see some honest answers, on what could have been an easily brushed away by talking about how many world championships your bodies have won as a metric, instead of talking about actual performance differences, up to and including placebo effect.

Its nice to know Jason hires the right nerds to keep on staff.

Does anyone know if there will be a Schumacher f2 for the ld3

It’s on the list, but nothing short term.

Funny because I was reading about aerodynamics on offroad RC yesterday. I think it was on Red RC. They stated they did a wind tunnel test on an offroad car. They found that there are so many parts sticking out such as shock towers they are going to be hung out in the wind because they can't be inside the body.

[QUOTE=PW;16045965]One thing I learned early on when making my transition from pro driver, to team manager, and later into product development is how powerful the mental side is in R/C. Certain shapes and sizes are perceived differently while driving them around the track and that can be just as powerful as actual function./QUOTE]

I have long thought that any aero effect from the body was at best at the nth order....

... but I recall clearly the first time I slapped a cab-forward body on my B4.1 back and forth with the stock body... and it REALLY felt different. I put it down to how my eyes/brain perceived the position of the car through the body shape... no chance it was aero. But it was obviously something, still.

Thanks Paul.

Well......it may not be downforce. But lift. And the net effect of reducing lift, is downforce kinda.

Giant flat chassis. Round body. That's a flat bottomed wing shape.

Move the cab forward, into the dirty air of the shock tower, might stall much of that.

And a control surface the size of our chassis, would move a plane quite a bit.

Anytime frame when the Finish Line Radio Bag for the Futaba 7PXR will be back in stock. Its on back order everywhere I look.

Sorry, but it's been discontinued.

PW - ETA on the 3232 dirt tech inserts?

interesting....

This is exactly why Lemans Prototypes went with the big honk'n fin on the back of the engine cowling. Not only to improve straight line stability, but also to prevent spill over air from sucking the cars off of the ground during high speed spins and sending them air borne.

The side shape of the bodies is one thing that is particularly intriguing to me, specifically for this reason. JConcepts makes a big deal in their marketing about the "JConcepts Chamfer" on all of their bodies. Which seems less than ideal to me, in comparison to something like the Pro-Line Axis body with its square sides, and integrated wicker edge, the flow characteristics at extreme yaw angles are going to be very different. And to me, it would be fun to quantify that in a psuedo scientific way, just to give some value to the designs, one way or another.

How wide are the narrow fuzzbite front tires? How wide are the standard? TIA