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Yanks Air Museum

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Establishment Date
1982-01-01
Collection Size
190 aircrafts
Phone Number
(909) 597-1735
Email Address
info@yanksair.org
Website
https://www.yanksair.org
Opening Hours
Open: 10am - 4pm, Tuesday - Saturday

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The Sikorsky H-34 was a rugged, versatile workhors

The Sikorsky H-34 was a rugged, versatile workhorse built for the Cold War era. First flown in 1954, it was designed for the U.S. Navy as an anti-submarine platform, but quickly proved useful across all branches of the military and in dozens of nations worldwide. Powered by a nose-mounted radial engine, the H-34 carried troops, evacuated wounded, hunted submarines, rescued downed pilots, and even briefly served as a gunship.

The H-34’s design was an evolution of the earlier H-19 Chickasaw, with improved payload and performance. It was the last piston-engine helicopter flown by the U.S. Marines, who nicknamed it the “HUS” and kept it in service well into the Vietnam War. In France and Algeria, it helped pioneer modern airmobile tactics; in Vietnam, Marines asked for it by name. It also became the basis for the British Westland Wessex, a turbine-powered variant that remained in service into the 21st century.

Yanks’ H-34 served with the U.S. Marine Corps and is preserved in the markings of the UH-34D “Seahorse.” It represents the final chapter of piston-powered helicopters in American service and stands as a reminder of the transition to modern rotary-wing warfare.

Our restoration team is hard at work! Can you reco

Our restoration team is hard at work! Can you recognize what wing were working on to the right side of this photo?

#ThrowbackThursday to @b29docsfriends's visit! Did

#ThrowbackThursday to @b29docsfriends's visit! Did you get a chance to see this beautiful B-29 in person?

📸 @tism_aero2003

Designed as a high-speed medium bomber, the XB-42

Designed as a high-speed medium bomber, the XB-42 featured an unconventional layout: two liquid-cooled V-12 engines buried in the fuselage drove a set of contra-rotating pusher propellers at the tail. This innovative setup eliminated the drag of external engine nacelles and aimed to match the B-29’s range at much lower cost and size. Only two were built, but the XB-42 demonstrated impressive performance, including a 433 mph cross-country speed record in 1945.

Douglas had proposed the XB-42 as a faster alternative to conventional bombers, offering the bombload of a Mosquito with the added benefit of defensive armament and a longer range. Despite excellent test results, including flights with auxiliary turbojets in the XB-42A configuration, the design suffered from cooling issues, yaw instability, and logistical concerns about its tail-mounted propellers. More critically, the rapid rise of jet propulsion made piston-powered bombers obsolete. The project was abandoned in favor of developing new jet aircraft, including its successor, the XB-43 Jetmaster.

The surviving XB-42 prototype now resides in storage at the National Museum of the U.S. Air Force. Though it never entered production, the Mixmaster represents a bold attempt to stretch the limits of piston-powered flight—and serves as a striking example of wartime innovation caught out by peacetime priorities and technological change.

Geebs is taking a quick break from maintenance ins

Geebs is taking a quick break from maintenance inspections, he'll be back at it shortly.

On December 8, 1962, the prototype Bell YOH-4, als

On December 8, 1962, the prototype Bell YOH-4, also known as the Model D-250, made its first flight at the Bell Helicopter Company’s plant in Hurst, Texas. This flight marked Bell’s entry into the U.S. Army’s Light Observation Helicopter (LOH) competition, which aimed to develop a nimble, turbine-powered scout helicopter for battlefield reconnaissance.

Three contenders were chosen for evaluation: the Bell YOH-4, the Fairchild-Hiller YOH-5, and the Hughes YOH-6. Though Bell’s design was ultimately passed over in favor of the Hughes OH-6A Cayuse, the story didn’t end there. Bell refined the aircraft’s design into the sleeker Model 206A JetRanger for the civilian market. The JetRanger became one of the most successful light helicopters in history, with military versions like the OH-58A Kiowa and OH-58D Kiowa Warrior serving for decades in combat, reconnaissance, and training roles.

Though it lost the original Army contract, the YOH-4’s legacy is profound. Its redesign not only rescued Bell’s program but gave rise to a helicopter family that spanned civil, military, and special operations use for over half a century.

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15121 Stearman Drive
Chino, CA 91710

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