Showing posts with label wood. Show all posts
Showing posts with label wood. Show all posts

Sunday, November 02, 2025

you know the name Jacuzzi, because of the hot tub. But the Jacuzzi brothers went into business first by making airplane propellers in Berkeley California, after WW1 they designed their own airplanes, including the Jacuzzi J-7


This propeller was manufactured by the Jacuzzi brothers around 1918.

 It was designed for use on aircraft powered by Liberty V-12 aircraft engines, primarily American-built DH-4s. 

The Jacuzzi brothers, Giocondo (1895–1921), Frank (1889–1973), Rachele (1886–1937), Candido (1903–86), Joseph (1891–1965), Gelindo (1894–1950), and Valeriano (1887–1973) originally opened a machining company in Berkeley, California, in 1915. 

After seeing propellers on aircraft flying at the 1915 Panama-Pacific International Exposition in San Francisco, Rachele was inspired to design a better one. 

Impressed by his new aerodynamic propeller design, the US government awarded the Jacuzzi brothers a contract to manufacture their propellers for World War I military aircraft. After the war, the brothers expanded their aviation business and even designed their own airplanes, including the Jacuzzi J-7.

 In 1921, they left the aviation industry and decades later, their company produced whirlpool hot tubs for which their name is most recognized today.

Saturday, January 04, 2025

Friday, June 07, 2024

here is what's called a pigtail bridge in the Custer State Park in the Badlands National Forest of South Dakota, right by Mt Rushmore


on the Iron Mountain scenic road, a 17-mile journey with 14 switchbacks, 314 hairpin curves, 3 pigtail bridges, and 3 narrow tunnels

the tunnels leading to Mount Rushmore were perfectly aligned so as you enter, Mount Rushmore is framed majestically at the far end. It teases visitors the entire way, building excitement for the participants. The Pigtail Bridges compliment the road by solving a problem and providing an exciting corkscrew route down the mountain.