World's highest speed limit - photo

**Altair** · May 13, 2022, 08:13 PM

World's highest speed limit at Holloman Air Force Base in New Mexico.

Previously:

Guy visits all SR-71 Blackbird planes - photos
NASA X-43 unmanned hypersonic craft - photos
Volkswagen Type 2 Gatso speed trap bus - photos
Water speed record disaster - video
1939 Mercedes-Benz T80 land speed record car - photos

**Frank S** · May 13, 2022, 10:11 PM

I sometimes drive at Mach .10 but mostly hold it down to .09 but out on the open highway I might let it creep up to Mach .12 or .13 if the wife isn't paying attention to how fast I'm going which is rarely these days.

**hemmjo** · May 14, 2022, 06:05 PM

I had my wife up to about Mach .14, on a motorcycle. She stopped screaming about .12 but was holding on tight.

Long before we were married!!!! I figured after that she as a keeper.

But I have not had her over M .12 since we married.

**Toolmaker51** · May 15, 2022, 10:00 PM

Must be getting old. Spent time out figuring those into MPH.

**hemmjo** · May 16, 2022, 05:42 AM

Have to remember that Mach numbers are a ratio of an objects speed to the speed of sound. The speed of sound varies with the type and density of the material it is traveling though. I know that I did not measure the temperature and humidity of the air. My Mach numbers are just estimates

This is a handy link to have for things like this.

**Toolmaker51** · May 16, 2022, 09:05 AM

Originally Posted by hemmjo

Have to remember that Mach numbers are a ratio of an objects speed to the speed of sound. The speed of sound varies with the type and density of the material it is traveling though. I know that I did not measure the temperature and humidity of the air. My Mach numbers are just estimates

This is a handy link to have for things like this.

It was a fun diversion, comparing myself to you and little lady or Frank S streaking across Texas.
Been to his place once; drove fast enough to overshoot it by 3 hours!
In a hybrid!
Q: How big is Texas?
A: Big enough to name different places the same!

**hemmjo** · May 16, 2022, 04:50 PM

Drove to Texas once, to visit wife's family in Houston. Just driving along the highway, "trying" to keep pace with traffic. That is when we Mach .12. Texas is indeed a big place. Next time we went for niece's wedding, we flew down... in an airplane