Friday, April 03, 2026

the Coffman Combustion Starter (thank you George!) an alternative to electric starters to turn over massive aircraft and tank engines in remote areas where electricity or backup battery power was unavailable.


The Coffman starter (or "shotgun starter") is a 1930s-1940s engine starter system that used a blank, gunpowder-filled cartridge to ignite and generate high-pressure gas. This gas pushed a piston that rotated the engine, often used in WW2 aircraft like the Spitfire to avoid heavy batteries

The original system focused the explosive gasses at the piston face, later versions fired the explosion into a geared starter drive, which rotated the engine via the flywheel.

The system worked well on remote Pacific Islands and on the battlefront. It was standard equipment in several World War II aircraft engines, including the Rolls-Royce Merlin engine used in British Spitfires, Pratt and Whitney R-1820 engines used in Grumman FM-2 Wildcats and Napier Sabre engine used in Hawker Typhoons. Several jet engines also used the Coffman starter

One of the drawbacks of using the Coffman starter was the build-up of carbon in the starting cylinder. As you see in Flight of the Phoenix, cartridges often had to be wasted as a means of blowing out the accumulated carbon in the cylinder before the engine would be able to start. Although sometimes referred to as a shotgun shell, the actual shell used was a four-gauge, much larger in height and diameter than 12- or 20-gauge shotgun shells. Variations on the Coffman starter were employed depending on application. Some geared starter drives held one, two or three cartridges while others held six or more.

the bridge that inspired a very slow, but famous, race. The Posingford Bridge built in1907 was where the Poohsticks game was invented in 1928.


found in Schott's Miscellany, interesting stuff fills these books I first discovered about 20 years ago, and only a week ago found that that after the success of the original, 3 or 4 more on different topics were made

I was in a very rich neighborhood with very large 3 and 4 car garages... and no one left anything interesting out where it could be seen, except this young guy's (I met his mom) track Miata with Montana loophole plates




interesting aftermarket aerodynamic hardtop, looking though the windows I saw that the interior was stripped of carpet and insulation, a 4 point seatbelt is installed, and a roll bar. 



seen on today's walk...


This makes the 2nd 914 I've found in this neighborhood... but that's a flat front tire on the passenger side front.



what the hell is the deal with this license plate? Yellow on black would be right for this era, but this sequence isn't the 3 letters followed by 3 numbers that would be proper for this year. Must be one of the new re-issued plates, which are fine for new cars, but, it's all wrong for the cars in the 60s to have the right color plates, without the right alphanumeric sequence




first time I've seen a 80s/90s 1st generation Humvee in nearly 17 years. 

 
this car has been parked so long, the tire dry rotted and went flat, on BOTH SIDES on the back. I think it's a beemer


a court has concluded the 15-year legal battle over a Caltrans project that aims to modify a stretch of Highway 101 through Richardson Grove State Park.


a three-judge panel in California’s First District Court of Appeal affirmed a lower court’s decision to reject the latest lawsuit from conservation groups that challenged the project’s compliance with the California Environmental Quality Act (CEQA).

The Richardson Grove Improvement Project, as Caltrans has dubbed it, will modify an approximately one-mile stretch of Highway 101 as it wends through the state park’s massive coast redwoods, some of which are more than 200 feet tall and hundreds of years old.

Caltrans describes the work as “minor adjustments” that are necessary to improve traffic safety and accommodate industry-standard-sized semi trucks that are currently prohibited from passing through this narrow stretch of 101.

Project opponents, on the other hand, argued that both the construction activity and the resulting road realignment could harm the ancient trees — not by removing any of them down but by cutting into their root systems.

A simpler solution? Make the one mile stretch a one lane, one way, and the road is already big enough, in the video they had a cop doing escort duty with lights on to make both lanes clear for the trucker... so, they are used to the idea of it being single vehicle use already, just like narrow country bridges. Put a stop light on either end of the one mile, one way, one lane section, for shifting the direction of traffic flow

Skip the first 40 seconds and it's over at 3:10. The rest of the video is open highway like any other, no cool redwood trunks inches away from the road


the Wrigley family (Wrigley Field in Chicago named for them) bought a Douglas C-47 Skytrain, converted it to a DC-3 in 1947 and used it to fly from Chicago to Catalina Island



The Wrigley family eventually sold the plane and only recently was the family able to track it down and repurchase it. Alison said last week the family was fortunate to have been able to re-locate the DC-3 and said it is undergoing a complete restoration. 

 With only 3,434 hours in its logbook, this apparently is the lowest-time DC–3 in the world.


Charlie Chaplin’s half-brother Syd was the first to offer air service to Catalina in 1919, operating a small seaplane service that lasted two years.

dropping a new Vette.... really? How after all these decades of using lifts, has the process not become fool proof? How after a decade of internet ridicule, hasn't every shop and garage, gotten the message "there will be international online shame and notoriety if you drop a car on a lift"?


it’s not the first time a C8 Corvette has fallen off a lift. This marks at least the third documented case since the model’s introduction, with earlier incidents in 2020 and 2021 pointing to similar mistakes.

While these cases are rare relative to total production numbers, they reveal a pattern that shouldn’t exist at this stage. By now, lifting procedures for the C8 platform are well-established. These aren’t experimental vehicles anymore—they’re widely sold performance cars with known service requirements.

Yet the same type of error keeps happening.
 
https://www.yahoo.com/autos/ownership/articles/dealer-drops-corvette-z06-during-133000493.html



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