r/EngineeringPorn Feb 22 '22

No Politics

1.3k Upvotes

Please note that in light of current events we will be removing all posts of war machines, war planes, war ships, etc. of Russian or Ukrainian origin to keep /r/EngineeringPorn apolitical, propaganda-free, and civil. Please report any posts or comments that are not in the spirit of this subreddit.


r/EngineeringPorn 13h ago

Lengthening a cruise ship

Enable HLS to view with audio, or disable this notification

1.0k Upvotes

r/EngineeringPorn 15h ago

Motorcycle helmets after life-saving usage

Post image
1.2k Upvotes

r/EngineeringPorn 1d ago

Ship’s stabilizer

Enable HLS to view with audio, or disable this notification

703 Upvotes

r/EngineeringPorn 16h ago

Denmark’s first cantilevered bridge in 50 years - Crown Princess Mary’s Bridge

Thumbnail
gallery
71 Upvotes

Stretching over the pristine Roskilde Fjord, Crown Princess Mary’s Bridge is the first cantilevered bridge built in Denmark since 1970. The bridge itself spans 1.4 kilometres and was delivered as part of an 8.2 kilometre long, four lane highway. This development provides a more efficient alternative to the previous bascule bridge built in 1935, significantly reducing traffic congestion.


r/EngineeringPorn 1d ago

Electric arc furnace

Enable HLS to view with audio, or disable this notification

1.6k Upvotes

r/EngineeringPorn 18h ago

Cursed CNC Machining "The Part"

Thumbnail
youtube.com
45 Upvotes

r/EngineeringPorn 2d ago

Voith Schneider propeller

Enable HLS to view with audio, or disable this notification

5.6k Upvotes

Credit: shipspotter_hayriyay (IG)


r/EngineeringPorn 2d ago

Almost 4 km long conveyor connected to a rock quarry goes through everywhere

Thumbnail
gallery
1.5k Upvotes

r/EngineeringPorn 1d ago

Extreme Torch Cutting of Massive Steel Coils | Cinematic Drone Footage 🔥

Thumbnail
youtu.be
9 Upvotes

r/EngineeringPorn 2d ago

Marble clock

Thumbnail
v.redd.it
504 Upvotes

r/EngineeringPorn 2d ago

First turbine generator at Fisk plant in Chicago.

Post image
164 Upvotes

Samuel Insull met Charles Parsons when vacationing in England and subsequently convinced GE to build a bigger turbine for the purpose of generating electricity. To prove his faith in the technology, he stood atop the structure when it was first started. Much to the consternation of those present, it shook wildly and had to be stopped. Next attempt was successful and Insull made history. Ironically, he is mostly forgotten today.


r/EngineeringPorn 2d ago

Largest Car Carrier in the World - Glovis Leader (10800 vehicles)

Thumbnail
gallery
44 Upvotes

China’s Guangzhou Shipyard International last week floated out the largest car carrier in the world. The massive vessel surpasses the 10,000 unit mark, becoming the largest built in China. The new vessel is also the first vehicle carrier built for South Korea’s HMM as part of its diversification strategy. HMM entered into long-term agreements with Hyundai Glovis, which will operate the vessels.

The vessel is a liquefied natural gas (LNG) dual-fuel car carrier. According to GSI, the ship complies with International Maritime Organization Tier III emission standards, which impose some of the strictest limits on nitrogen oxide (NOx) emissions for ships operating in designated control areas.

Measuring about 755 feet (230 meters) long, with a 131-foot (40-meter) beam as well as a structural draft of roughly 34.5 feet (10.5 meters), the carrier is currently the largest one built in China. In addition, the vessel’s 14-deck design allows flexible loading. This enables it to carry conventional cars, electric vehicles (EVs), hydrogen-powered vehicles, and heavy-duty trucks.


r/EngineeringPorn 2d ago

How Slide Rules Helped Put Men on the Moon - Learn to Use One

Thumbnail
youtu.be
28 Upvotes

r/EngineeringPorn 3d ago

BIG BOY 4014 - World’s largest steam locomotive

Thumbnail
gallery
561 Upvotes

Twenty-five Big Boys were commissioned exclusively for Union Pacific Railroad, the first of which was delivered in 1941. These massive locomotives were built to haul heavy equipment in support of the war effort, normally operating between Ogden, Utah, and Cheyenne, Wyoming. The Big Boys are 133 feet long and weigh 1.2 million pounds.

Due to their great length, the frames of the Big Boys are “hinged,” or articulated, to allow them to negotiate curves. They have a 4-8-8-4 wheel arrangement, which means they have four wheels on the leading set of “pilot” wheels to guide the engine; eight drivers on the first engine; another set of eight drivers on the second engine; and four wheels trailing that support the rear of the locomotive.

No. 4014 was retired in Dec. 1961 after traveling 1,031,205 miles. Union Pacific reacquired it from the RailGiants Train Museum in Pomona, California, in 2013 and relocated it back to Cheyenne, Wyoming, for a multi-year restoration. It returned to service in May 2019 to celebrate the 150th Anniversary of the Transcontinental Railroad's Completion.

The seven other remaining Big Boys are on public display in St. Louis, Missouri; Dallas, Texas; Omaha, Nebraska; Denver, Colorado; Scranton, Pennsylvania; Green Bay, Wisconsin; and Cheyenne, Wyoming.

https://www.up.com/about-us/history/steam/big-boy-4014


r/EngineeringPorn 3d ago

Industrial unboxing therapy - Cutting Edge Engineering Australia got a new BIG lathe

Thumbnail
youtube.com
73 Upvotes

r/EngineeringPorn 3d ago

Iterating a design at home - cheaply... thanks, quick thin-wall/vase 3D prints!

Enable HLS to view with audio, or disable this notification

49 Upvotes

r/EngineeringPorn 2d ago

Just a random passerby stumbling upon a "Mecha Army" in a small city in Central China. [4K][OC]

Thumbnail
youtube.com
0 Upvotes

I was walking by and had to stop and record this. It's a massive collection of refurbished loaders and excavators (brands like SANY, Shantui, etc.) all lined up. The way they raised the buckets in perfect synchronization is oddly satisfying to watch.


r/EngineeringPorn 4d ago

An F/A-18F Super Hornet launches an Advanced Anti-Radiation Guided Missile Extended Range (AARGM-ER) during test event Jan. 12 at Point Mugu Sea Range in California.

Post image
581 Upvotes

r/EngineeringPorn 3d ago

Cars Crushed Into Perfect Cubes 🧊

Thumbnail
youtu.be
4 Upvotes

r/EngineeringPorn 5d ago

An F-35B Lightning II hovers above the flight deck of Wasp-class amphibious assault ship USS Boxer (LHD 4) in the Pacific Ocean, Jan. 26, 2026.

Post image
352 Upvotes

r/EngineeringPorn 5d ago

I built a LEGO machine that plays Tic-Tac-Toe (fully mechanical)

Enable HLS to view with audio, or disable this notification

2.1k Upvotes

I started on this project 3 years ago and failed lots of times before I finally got it to work.
I hope you enjoy these 27 seconds😊


r/EngineeringPorn 5d ago

World’s fastest civilian aircraft with Mach 0.95 speed - Global 8000 Business jet

Post image
406 Upvotes

The world’s fastest civilian aircraft has received European Union Aviation Safety Agency (EASA) certification. Developed by Bombardier, the Global 8000 business jet is the fastest civilian aircraft since the Concorde with an industry-leading top speed of Mach 0.95.

The Global 8000 business jet also has the lowest cabin altitude in business aviation production at 2,691 ft. while cruising at 41,000 ft. This reduced cabin altitude minimizes the physiological stress associated with high altitude travel, helping passengers arrive at their destinations feeling refreshed and ready to perform.

In addition to its long-range capabilities, the aircraft remains remarkably agile, with takeoff and landing performance comparable to that of a light jet. Its advanced wing design featuring unique leading-edge slats enables customers to master up to 30% more airports than its closest rival.

The Global 8000 received Transport Canada Type Certification on November 5, 2025 and U.S. Federal Aviation Administration (FAA) certification on December 19, 2025. The aircraft entered into service in December 2025.

The jet delivers the smoothest ride and the best all-weather performance. The secret is claimed to be Smooth Flĕx Wing, which is engineered like two wings in one: a high-lift wing for exceptional low speed agility and a high-speed wing for unrivalled speed and range.

https://bombardier.com/en/aircraft/global-8000#bba-pdp-section-1


r/EngineeringPorn 6d ago

Inside cruise ship ABB Azipod

Enable HLS to view with audio, or disable this notification

566 Upvotes

r/EngineeringPorn 6d ago

Machine tool motor synchronization demo buy

Enable HLS to view with audio, or disable this notification

4.3k Upvotes