Bobby Isaac in DC-93 (#88) at Daytona first test session 8-5-69

[odcics2]

Bobby Isaac and Charlie Glotzbach testing DC-93 (#88) on it's first speedway test with the nose and wing.
This mention is from Autoweek dated 8-23-69.

It would be nice to find a photo of the drivers with the car at that test.

[tan top]

 

think ive see somewhere   might even be in the supercars book ,  chargin Charlie  , sitting on the wing of or standing by the rear of  #88  

[nascarxx29]

Maybe in Autoweek seem something like that clipping

[odcics2]

think ive see somewhere   might even be in the supercars book ,  chargin Charlie  , sitting on the wing of or standing by the rear of  #88  

Glotzbach on the wing was taken at the Chelsea Proving Grounds, July 13th. 1969.
Buddy Baker was on the other side.   Car ran 203 on the 4.77 mile track.  

[Aero426]

Glotzbach on the wing was taken at the Chelsea Proving Grounds, July 20th. 1969.
Buddy Baker was on the other side.   Car ran 203 on the 4.77 mile track.  

Speaking of urban legends, Charlie running 240+ at Chelsea is another one that won't die.  

[hemigeno]

Glotzbach on the wing was taken at the Chelsea Proving Grounds, July 20th. 1969.
Buddy Baker was on the other side.   Car ran 203 on the 4.77 mile track.  

Speaking of urban legends, Charlie running 240+ at Chelsea is another one that won't die.  

... not that Charlie is worried about setting THAT story straight!   

[tan top]

think ive see somewhere   might even be in the supercars book ,  chargin Charlie  , sitting on the wing of or standing by the rear of  #88  

Glotzbach on the wing was taken at the Chelsea Proving Grounds, July 20th. 1969.
Buddy Baker was on the other side.   Car ran 203 on the 4.77 mile track. 

yes!! found said picture , my mistake   

[Aero426]

Glotzbach on the wing was taken at the Chelsea Proving Grounds, July 20th. 1969.
Buddy Baker was on the other side.   Car ran 203 on the 4.77 mile track.  

Speaking of urban legends, Charlie running 240+ at Chelsea is another one that won't die.  

... not that Charlie is worried about setting THAT story straight!   

Yes, he is on the record for that.     

[odcics2]

think ive see somewhere   might even be in the supercars book ,  chargin Charlie  , sitting on the wing of or standing by the rear of  #88  

Glotzbach on the wing was taken at the Chelsea Proving Grounds, July 13th. 1969.
Buddy Baker was on the other side.   Car ran 203 on the 4.77 mile track. 

yes!! found said picture , my mistake   

See the yaw 'pipe' on the roof?   Same device on the car when Allison ran 197. at Daytona Int. Speedway

[TUFCAT]

Was that installed for the wind tunnel test usage, or did it help air stream at high speeds?

[Aero426]

It is part of the data acquisition package.  It could be used in the tunnel, on track, or on the 3/8 scale models.

[TUFCAT]

That makes sense. 

[odcics2]

It is part of the data acquisition package.  It could be used in the tunnel, on track, or on the 3/8 scale models.

Correct, that device measures the yaw of the car in the corner.
That can be simulated in a tunnel, too.

[Aero426]

This is an example of a yaw meter as used on the #88.    Only the pipe portion was visible above the body work.

These came directly from the Chrysler rocket program in Huntsville.

[pettybird]

so, how fast did the car really go that day?  seems like a C500 race car with a bum carburetor should do 185 at Chelsea...

[Aero426]

Air slits in the probe portion of the yaw meter.   I am not sure if the tube rotated within the body of the meter, or that the air flow pressurized the tube and something happens inside the body of the instrument.

[odcics2]

so, how fast did the car really go that day?  seems like a C500 race car with a bum carburetor should do 185 at Chelsea...

DC-93 ran 203 with a "small" carb, not a Dominator.    Actually, the same size carb can be seen on the Show Car #6.      

[tan top]

think ive see somewhere   might even be in the supercars book ,  chargin Charlie  , sitting on the wing of or standing by the rear of  #88  

Glotzbach on the wing was taken at the Chelsea Proving Grounds, July 13th. 1969.
Buddy Baker was on the other side.   Car ran 203 on the 4.77 mile track. 

yes!! found said picture , my mistake   

See the yaw 'pipe' on the roof?   Same device on the car when Allison ran 197. at Daytona Int. Speedway

  this is interesting  stuff !!   thanks for sharing 

[odcics2]

Air slits in the probe portion of the yaw meter.   I am not sure if the tube rotated within the body of the meter, or that the air flow pressurized the tube and something happens inside the body of the instrument.

Note, there are 2 slots on it. It appears they would be lined up like this "V" facing the front or perhaps
like this, "^" , the dual slots facing the rear of the car.   They would zero it on the straights.  At low speeds in the turns there is no yaw.
but, at higher speeds, the back end hangs out!!!! The difference in pressure on each slot would be recorded
and the yaw angle calculated.   Pretty cool device.