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An airplane radial engine is a powerful internal combustion engine where cylinders are arranged in a circle around a central crankshaft, resembling the spokes of a wheel. Renowned for their exceptional power-to-weight ratio and reliable air cooling, they were the dominant powerhouses of early aviation and World War II....

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Mechanical Knowledge

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26,030 views • 18 days ago •via X (Twitter)

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In 1909, the Gnome Omega became the first mass-produced rotary engine, marking a major step forward in early aviation. At a time when aircraft struggled with heavy, overheating powerplants, the Gnome Omega introduced a radical solution: the cylinders and engine block rotated around a fixed crankshaft, improving cooling and reducing weight. This unusual design allowed air to flow directly over the spinning cylinders, eliminating the need for bulky radiators. The high power-to-weight ratio made it ideal for pioneering aircraft, including those used by Louis Blériot during his historic 1909 crossing of the English Channel. Although rotary engines were eventually replaced by more efficient designs, the Gnome Omega remains a symbol of the experimental ingenuity that defined the birth of powered flight.
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In 1909, the Gnome Omega became the first mass-produced rotary engine, marking a major step forward in early aviation. At a time when aircraft struggled with heavy, overheating powerplants, the Gnome Omega introduced a radical solution: the cylinders and engine block rotated around a fixed crankshaft, improving cooling and reducing weight. This unusual design allowed air to flow directly over the spinning cylinders, eliminating the need for bulky radiators. The high power-to-weight ratio made it ideal for pioneering aircraft, including those used by Louis Blériot during his historic 1909 crossing of the English Channel. Although rotary engines were eventually replaced by more efficient designs, the Gnome Omega remains a symbol of the experimental ingenuity that defined the birth of powered flight.

Mechanical Knowledge

104,086 views • 2 months ago

On May 10, 2022, a Cessna 172S experienced a total loss of engine power during an instructional flight near Traverse City, Michigan. While on a visual approach to the runway, the engine lost power and could not be restarted. The flight instructor declared an emergency and executed a forced landing to a park area about 1 mile north of the runway, where the airplane struck the ground and a perimeter fence. The aircraft sustained substantial damage. No injuries were reported. Postaccident examination revealed a loose “B” nut on the fuel line between the fuel injector and fuel manifold, allowing fuel to leak and air to enter the system. The engine had been installed recently and had flown about 2.7 hours since installation. The NTSB determined the probable cause was the failure of maintenance personnel to properly torque the fuel line “B” nut, which resulted in a total loss of engine power. 📸 runthisshitt
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On May 10, 2022, a Cessna 172S experienced a total loss of engine power during an instructional flight near Traverse City, Michigan. While on a visual approach to the runway, the engine lost power and could not be restarted. The flight instructor declared an emergency and executed a forced landing to a park area about 1 mile north of the runway, where the airplane struck the ground and a perimeter fence. The aircraft sustained substantial damage. No injuries were reported. Postaccident examination revealed a loose “B” nut on the fuel line between the fuel injector and fuel manifold, allowing fuel to leak and air to enter the system. The engine had been installed recently and had flown about 2.7 hours since installation. The NTSB determined the probable cause was the failure of maintenance personnel to properly torque the fuel line “B” nut, which resulted in a total loss of engine power. 📸 runthisshitt

aircraftmaintenancengineer

27,969 views • 5 months ago

Inside a carburetor, air rushes through a narrow tube called a venturi. This restriction forces the air to speed up, creating a sudden drop in pressure. That low pressure acts like a vacuum, drawing raw fuel through tiny jets where it instantly atomizes into a fine mist. This perfect air-fuel vapor is then sucked straight into the engine cylinders to ignite.
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Inside a carburetor, air rushes through a narrow tube called a venturi. This restriction forces the air to speed up, creating a sudden drop in pressure. That low pressure acts like a vacuum, drawing raw fuel through tiny jets where it instantly atomizes into a fine mist. This perfect air-fuel vapor is then sucked straight into the engine cylinders to ignite.

Mechanical Knowledge

147,466 views • 5 days ago

Demo at Aberdeen Proving Grounds, Maryland of a 37mm gun, possibly a Baldwin (Model 1918 Type M1), mounted to a Liberty engine through the hub of the propeller shaft that is offset from the crankshaft. I can't find solid evidence this was produced but interesting nonetheless.👀
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Demo at Aberdeen Proving Grounds, Maryland of a 37mm gun, possibly a Baldwin (Model 1918 Type M1), mounted to a Liberty engine through the hub of the propeller shaft that is offset from the crankshaft. I can't find solid evidence this was produced but interesting nonetheless.👀

Aviation Archive - Tim Farmer

74,472 views • 1 month ago

The size of this ship engine crankshaft
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The size of this ship engine crankshaft

Science girl

88,442 views • 10 months ago

The crankshaft for the Wärtsilä-Sulzer RTA96-C, the the largest reciprocating engine in the world, designed for large container ships that run on heavy fuel oil.
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The crankshaft for the Wärtsilä-Sulzer RTA96-C, the the largest reciprocating engine in the world, designed for large container ships that run on heavy fuel oil.

Massimo

102,892 views • 2 years ago

The VR6 engine was born out of a packaging problem. VW's engineers needed a six-cylinder that could fit transversely in a front-wheel drive Golf engine bay. Something a conventional V6 with cylinder banks spread 90 degrees could never do. The solution was a narrow-angle 15-degree configuration with a single cylinder head shared across all six cylinders, making it barely wider than a four cylinder. The MK3 Golf VR6 was the first car to receive it in the Golf family 2.8L, 174 HP, 235 Nm, 0-100 km/h in around 7 seconds, and a sound unlike anything else in a hatchback body. Not the fastest car of its era. The most characterful one in its class without question. That engine went on to power the Corrado, the Passat, and eventually the Phaeton and even some Porsche models. This example here is the GTI VR6 and the VR6 produces 201 hp, looks like a lot of fun.
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The VR6 engine was born out of a packaging problem. VW's engineers needed a six-cylinder that could fit transversely in a front-wheel drive Golf engine bay. Something a conventional V6 with cylinder banks spread 90 degrees could never do. The solution was a narrow-angle 15-degree configuration with a single cylinder head shared across all six cylinders, making it barely wider than a four cylinder. The MK3 Golf VR6 was the first car to receive it in the Golf family 2.8L, 174 HP, 235 Nm, 0-100 km/h in around 7 seconds, and a sound unlike anything else in a hatchback body. Not the fastest car of its era. The most characterful one in its class without question. That engine went on to power the Corrado, the Passat, and eventually the Phaeton and even some Porsche models. This example here is the GTI VR6 and the VR6 produces 201 hp, looks like a lot of fun.

Autowelt

57,675 views • 24 days ago

On April 26, 2021, a Cessna 402C was conducting multi-engine training at Hyannis, Massachusetts, when a simulated engine failure led to a real partial loss of power during a go-around.The trainee followed memory items and set the left engine auxiliary boost pump to high, which likely flooded the engine with excess fuel. During the go-around, the airplane yawed left, airspeed dropped below safe single-engine climb speed, and the instructor had to take control.The aircraft landed hard on the grass beside the runway, and the landing gear collapsed. Both pilots were uninjured. The NTSB determined the boost pump position during the simulated failure led to the power loss. 📸runthisshitt
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On April 26, 2021, a Cessna 402C was conducting multi-engine training at Hyannis, Massachusetts, when a simulated engine failure led to a real partial loss of power during a go-around.The trainee followed memory items and set the left engine auxiliary boost pump to high, which likely flooded the engine with excess fuel. During the go-around, the airplane yawed left, airspeed dropped below safe single-engine climb speed, and the instructor had to take control.The aircraft landed hard on the grass beside the runway, and the landing gear collapsed. Both pilots were uninjured. The NTSB determined the boost pump position during the simulated failure led to the power loss. 📸runthisshitt

aircraftmaintenancengineer

22,276 views • 4 months ago

RS-25 engines powering the NASA_SLS (Space Launch System) rocket use liquid oxygen and liquid hydrogen as propellants – the same elements that combine to create water (H2O). For an RS-25 engine test, liquid hydrogen and liquid oxygen are mixed in the engine combustion chamber and ignited, which results in extremely high-temperature exhaust (up to 6,000 degrees F) exiting the nozzle into the flame deflector at a very high rate and pressure. Hundreds of thousands of gallons of water also are flowing into the flame deflector to cool the exhaust and protect the deflector. When the hot exhaust mixes with the water, it creates steam that rises into the atmosphere, forming a cloud that subsequently cools. Depending on the temperature and humidity at the time of the test, this cloud of steam may condense into water and fall in a very limited and localized area. The steam released during a test is water and does not pollute the atmosphere.
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RS-25 engines powering the NASA_SLS (Space Launch System) rocket use liquid oxygen and liquid hydrogen as propellants – the same elements that combine to create water (H2O). For an RS-25 engine test, liquid hydrogen and liquid oxygen are mixed in the engine combustion chamber and ignited, which results in extremely high-temperature exhaust (up to 6,000 degrees F) exiting the nozzle into the flame deflector at a very high rate and pressure. Hundreds of thousands of gallons of water also are flowing into the flame deflector to cool the exhaust and protect the deflector. When the hot exhaust mixes with the water, it creates steam that rises into the atmosphere, forming a cloud that subsequently cools. Depending on the temperature and humidity at the time of the test, this cloud of steam may condense into water and fall in a very limited and localized area. The steam released during a test is water and does not pollute the atmosphere.

Stennis Space Center

25,421 views • 1 year ago

What Looks Like A Complex Set Of Spinning Parts Is The Core Of How Trucks Convert Engine Power Into Motion. A drivetrain system transfers torque from the engine through the transmission, driveshaft, and differential to the wheels. Each component plays a specific role. The transmission adjusts torque and speed, the driveshaft carries rotational force, and the differential distributes power between wheels while allowing them to rotate at different speeds during turns. Seeing the system in motion reveals how precisely synchronized these components must be to handle heavy loads and maintain efficiency under stress. In Heavy Vehicles, Power Is Only Useful When It Is Controlled.
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What Looks Like A Complex Set Of Spinning Parts Is The Core Of How Trucks Convert Engine Power Into Motion. A drivetrain system transfers torque from the engine through the transmission, driveshaft, and differential to the wheels. Each component plays a specific role. The transmission adjusts torque and speed, the driveshaft carries rotational force, and the differential distributes power between wheels while allowing them to rotate at different speeds during turns. Seeing the system in motion reveals how precisely synchronized these components must be to handle heavy loads and maintain efficiency under stress. In Heavy Vehicles, Power Is Only Useful When It Is Controlled.

Mechanical Knowledge

66,718 views • 3 months ago

Crazy footage shows the moment Pilot Eladio Marquez crashed his Cessna 335 into a warehouse that was hosting an event for autistic children. Marquez and his passenger lost their lives in the crash as their plane burst into a fiery blaze, forcing children and their mentors to flee the warehouse. The incident occurred in 2018, with the aircraft bound for an airpark in the north Florida town of Hilliard. However, just seconds after takeoff, they reported a fire in the left engine. Despite their attempt to return safely to the grass strip, they were unable to do so. The pilot is reported as telling air traffic control: 'We're losing power in our left engine, we turning right back.'
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Crazy footage shows the moment Pilot Eladio Marquez crashed his Cessna 335 into a warehouse that was hosting an event for autistic children. Marquez and his passenger lost their lives in the crash as their plane burst into a fiery blaze, forcing children and their mentors to flee the warehouse. The incident occurred in 2018, with the aircraft bound for an airpark in the north Florida town of Hilliard. However, just seconds after takeoff, they reported a fire in the left engine. Despite their attempt to return safely to the grass strip, they were unable to do so. The pilot is reported as telling air traffic control: 'We're losing power in our left engine, we turning right back.'

Morbid Knowledge

565,577 views • 1 year ago

• One player starts in middle and receives a pass • Central player passes to next player in circle and rejoins outside circle • Passer from outside circle replaces central player • Rotate all the way around the circle Today's session is a circular passing rotation... ⭕️👨‍💻
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• One player starts in middle and receives a pass • Central player passes to next player in circle and rejoins outside circle • Passer from outside circle replaces central player • Rotate all the way around the circle Today's session is a circular passing rotation... ⭕️👨‍💻

Sport Session Planner

16,579 views • 1 year ago

🚨 ROLLS-ROYCE JUST RAN A JET ENGINE ON 100% HYDROGEN AND IT REACHED FULL TAKE-OFF POWER. In a landmark test, a Rolls-Royce jet engine successfully operated at full thrust using only hydrogen fuel for the first time in history. The engine was tested across a complete simulated flight cycle, including fault scenarios, proving that hydrogen can not only burn inside a modern aero gas turbine but can deliver the power needed for real commercial flight. Why this matters: • Aviation is one of the hardest sectors to decarbonize • Hydrogen produces zero CO₂ when burned — only water • This test validates that hydrogen combustion, fuel systems, and engine controls can work together at full power • It moves hydrogen aviation from theory into practical engineering reality The deeper implication is huge: We are now seeing the first real proof that large commercial aircraft could one day fly on hydrogen instead of kerosene. While many challenges remain (especially hydrogen storage and airport infrastructure), this test removes one of the biggest technical doubts: whether a jet engine can actually deliver full power on hydrogen. The race toward zero-emission flight just took a major step forward. What do you think will hydrogen or battery-electric eventually power most commercial flights? Follow for more frontier energy and sustainable technology.
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🚨 ROLLS-ROYCE JUST RAN A JET ENGINE ON 100% HYDROGEN AND IT REACHED FULL TAKE-OFF POWER. In a landmark test, a Rolls-Royce jet engine successfully operated at full thrust using only hydrogen fuel for the first time in history. The engine was tested across a complete simulated flight cycle, including fault scenarios, proving that hydrogen can not only burn inside a modern aero gas turbine but can deliver the power needed for real commercial flight. Why this matters: • Aviation is one of the hardest sectors to decarbonize • Hydrogen produces zero CO₂ when burned — only water • This test validates that hydrogen combustion, fuel systems, and engine controls can work together at full power • It moves hydrogen aviation from theory into practical engineering reality The deeper implication is huge: We are now seeing the first real proof that large commercial aircraft could one day fly on hydrogen instead of kerosene. While many challenges remain (especially hydrogen storage and airport infrastructure), this test removes one of the biggest technical doubts: whether a jet engine can actually deliver full power on hydrogen. The race toward zero-emission flight just took a major step forward. What do you think will hydrogen or battery-electric eventually power most commercial flights? Follow for more frontier energy and sustainable technology.

TheNewPhysics

243,303 views • 1 month ago

ENGINE FAILURE FORCES UNITED B777 BACK TO DULLES AFTER TAKEOFF United Airlines Flight 803, a Boeing 777-200(N78004) bound for Tokyo, safely returned to Washington Dulles International Airport (IAD) on Saturday after suffering a loss of power in one engine shortly after departure. The engine issue on takeoff reportedly sparked a small brush fire along the runway, with airport fire crews responding immediately and remaining on scene as a precaution. The aircraft was seen dumping fuel before making an emergency landing back at IAD. There were 275 passengers and 15 crew members on board. No injuries were reported. United confirmed the incident, stating the flight returned shortly after takeoff to address the engine power loss and landed safely. To assist affected passengers, United temporarily closed a United Club lounge at Dulles while working to rebook customers to their destinations. The FAA also confirmed the event, noting that Flight 803 returned to Dulles around 1:20 p.m. local time after experiencing an engine failure during departure. The FAA has opened an investigation.
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ENGINE FAILURE FORCES UNITED B777 BACK TO DULLES AFTER TAKEOFF United Airlines Flight 803, a Boeing 777-200(N78004) bound for Tokyo, safely returned to Washington Dulles International Airport (IAD) on Saturday after suffering a loss of power in one engine shortly after departure. The engine issue on takeoff reportedly sparked a small brush fire along the runway, with airport fire crews responding immediately and remaining on scene as a precaution. The aircraft was seen dumping fuel before making an emergency landing back at IAD. There were 275 passengers and 15 crew members on board. No injuries were reported. United confirmed the incident, stating the flight returned shortly after takeoff to address the engine power loss and landed safely. To assist affected passengers, United temporarily closed a United Club lounge at Dulles while working to rebook customers to their destinations. The FAA also confirmed the event, noting that Flight 803 returned to Dulles around 1:20 p.m. local time after experiencing an engine failure during departure. The FAA has opened an investigation.

Turbine Traveller

97,968 views • 6 months ago

2 horns, 8 cylinders. The HEMI® V8 engine is back in Ram Trucks.
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2 horns, 8 cylinders. The HEMI® V8 engine is back in Ram Trucks.

Ram Trucks

46,008 views • 1 year ago

Now they look and sound nice. I guess it was not the same in the 1940s... BF-109 engine start-up (by the looks of it, a "real" one, using the DB Engine and not the RR Engine)
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Now they look and sound nice. I guess it was not the same in the 1940s... BF-109 engine start-up (by the looks of it, a "real" one, using the DB Engine and not the RR Engine)

Air Safety #OTD by Francisco Cunha

25,131 views • 4 months ago

This setup uses pulleys to transfer downward motion into tension along a rope. Lowering the engine crane increases the force applied through the system. The result is a controlled demonstration of gravity, tension, and mechanical advantage.
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This setup uses pulleys to transfer downward motion into tension along a rope. Lowering the engine crane increases the force applied through the system. The result is a controlled demonstration of gravity, tension, and mechanical advantage.

Theogcfu

40,260 views • 5 months ago

“all that moisture being sucked up by this area of low pressure. listen, there’s a kpop group named ENHYPEN and their fans are called ENGENES because they’re the fuel, they’re the engine and the fuel that keeps the band going. well, this is the fuel that’s going to continue to keep these showers going as we head into this weekend” HE ACTUALLY DID IT OMG😭
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“all that moisture being sucked up by this area of low pressure. listen, there’s a kpop group named ENHYPEN and their fans are called ENGENES because they’re the fuel, they’re the engine and the fuel that keeps the band going. well, this is the fuel that’s going to continue to keep these showers going as we head into this weekend” HE ACTUALLY DID IT OMG😭

paz ʚĭɞ

43,286 views • 1 year ago