remove the alternator and installing it on the front of the car

[noeryan]

if you're talking about me... I'm still here!

[Frank Lee]

Yay!

[Bicycle Bob]

"I was and remain skeptical of the merits of long pointy noses on slow small cars. I kept pretty silent about this one: "

I'm also inclined to think that zeppelins and airliner noses are pointy enough. To me, the stranger feature on that CRX was all the work on the back that did nothing to fix a detached flow (none to fix - the slope was about perfect) or reduce the wake size. Pointy back ends make sense, but not if they are so long they add skin friction.

[Frank Lee]

Yeah, I thought that too. All you said!

747s go pretty fast yet they don't have pointy Concorde noses. GA aircraft are blunter yet!

I'm kinda in the same boat with Basjoos' nose extension, and recall when he said it improved things. MMMMMMMMM I thought of commenting but he does seem to document things better than the average bear. If it is helping perhaps it inadvertently fixed something else not related to it's pointiness?

And yes, it looks like that substantial rear extension still has a lot of area at the cut-off. It does have boat-tailing in the plan view... but he's not all that far from me and has to contend with the crosswinds I was talking about in another thread. I wonder about boat-tailing in yaw, and if it might actually make Cd worse?

[TestDrive]

Originally Posted by Frank Lee

I'm kinda in the same boat with Basjoos' nose extension, and recall when he said it improved things. MMMMMMMMM I thought of commenting but he does seem to document things better than the average bear. If it is helping perhaps it inadvertently fixed something else not related to it's pointiness?

It's not just pointy, the wedge angle of attack forces more air over the top than the stock blunt nose. Move the point up (to center of stock bumper height); keep the same pointedness and ground effect would increase.

[Frank Lee]

But he's got a full belly pan.

And the supposedly super slippery Viking cars have a high nose that would direct a lot of airflow down under.

[TestDrive]

I know about the full belly pan.
Air that goes underneath gets compressed against an inflexible road.
Air that goes above gets compressed against a springy, forgiving column of air.
Isn't that the root cause of ground effect?

What the heck is a super slippery Viking car???

[noeryan]

GA aircraft aren't pointy because they have a prop. Look at a pusher prop. Like a Long EZ. I've been putting this on the back burner until I can get you guys hard evidence to prove my point... I've got a friend doing some testing on spheres with planed front ends (modeled after the cameras on heli's). Its neat watching the stagnation build. If I can find a way to get the videos to you guys I'll send it. It just seems important to remember that your drag is the difference in pressures... Decreasing frontal pressure and increasing rear pressure is the whole point of this.

[MetroMPG]

Anyone object to me splitting this thread into two? One about wind turbines & the other about pointy front ends?

[Frank Lee]

"What the heck is a super slippery Viking car???"

viking - Google Search