40 Biggest NEVER BUILT Aircraft concepts! 100th Video Special!

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There are a lot of insane aircraft designs that never saw the light of day, and many have asked how they compare to each other. So why not chuck them in to the mix and size them up together?

Welcome to a very special video, the 100th video on the channel.

Bell X-22
Its ability to fly, compact design and stable flight dubbed it the perfect blend of a helicopter and plane.

Submersable seaplane - 50.5 feet long, 15.39 meters
it has the ability to sink below the waves and hunt its prey - submarines.

the XB 35 and YB 49
Originally a world war two bomber concept, this flying wing aircraft would do away with the flaws of modern planes

Yak 38
The yak 38 was a experimental russian vtol fighter jet design

Railplane
While technically not a plane, it was an aircraft on tracks. Developed in Scotland

Cl-346
Shockingly, US engineers had an idea to make a vtol flighter as early back as the 1950s.

the Kingfish
While many viewers might know of the SR-71 Blackbird - few know about its rival secret project, the Convair Kingfish

Avro arrow
Perhaps the most controversial aircraft design, this was about to enter full production in canada

fairchild dornier
From the creators of the A-10 warthog comes the Fairchild Dornier.

SR72
The current underdevelopment replacement for the SR-71

Baade
In the 1950s, iron curtain east germany developed an aircraft concept that was superior to soviet designs

Vtol Jetliner, Hawkersidley HS.141
Speaking of before their time, we have the Hawkersiddiley HS141, vtol commercial plane.

Aroura
Flying at mach 6 above the world with dount shaped rings, this spy plane uses a new type of engine that doesn't yet exist

Seamaster p6m
Ah the sea master, a nuclear bomber that could land on any ocean, and the navy's answer to the B-52.

TR3b - ?
The proposed flying dorito, or the TR-3b black manto, is a top secret project that apparently doesn't exist and has been flying using anti-gravity technology.

Convair ramjet
What happens when you combine a missile and a submarine, you get the convair nuclear powered and nuclear delivering ramjet.

7J7 Prop fan
using radical new engine technology, this boeing design would change the japanese market, and then the world

MC-21
The russian answer to the Boeing 737

Boeing 797 middle of the market jet
The Boeing 797 was designed as a middle-of-the-market aircraft to take on airbus

VVP-6 - 49 m / 160
With six giant rotors, this russian helicopter would have become the biggest helicopter design ever designed.

Forgotten Japanese 787-3 and the Airbus A350-800

Boeing 2707
The Boeing version of the Concorde was giant, 277 passengers and could fly faster than the European equivalents.

Lockheed L-2000
The 2nd choice in the supersonic arms race was the lockheed L-2000, a supersonic jet that was cheaper to build but not as technologically superior.

Boeing Sonic cruiser
Ushered in 2001, the Boeing sonic cruiser was a aircraft able to fly faster than convential aircraft of the time.

Nuclear 747
This project is one of the most scariest ever designs. A 747 that could carry not just one ICBM nuke inside of its fulsage, but six, and lauch them from the air.

747-500 prop fan
Speaking of power, consider the 747-500 prop fan version

MD-12
Not to be caught out in the double decker phase, Mcdonnad douglas designed their own double deck a380

747X double decker
Before the 747-8 was invented, Boeing wanted to bring to the market a double deck version

Hyper Cargo
The future of large cargo transportation

Parwig
The american ekranoplan was developed as part of a strategic nuclear weapon platform

Lockheed Super transport
Before the A380, Lockheed came up with a large, fat design of a plane that would be perfect for long haul flights

Airbus A380neo, plus and strech
Airbus wasn't quite done with the A380, and had several plans to build a cargo version

C-5 galaxy civil plane
believe it or not, there was a plan to turn the c-5 galaxy into a passenger plane

Triple Deck Monster
A huge triple deck monster plane, this concept was designed to see how many passengers we could fit onboard a conventional aircraft.

Nuclear tug
Why not drag them instead with a nuclear powered tug-plane.

Star raker
Part of a plan to build 80 solar powerplants in orbit, the star raker was a space plane that could do weekly trips into outerspace.

Tu-404
Not to be left out in the cold, Russia came up with its own super massive flying concept.

Boeing Pelican
The Boeing pelican was a design built to solve the cargo problem, and allow armies to be transported across oceans

Boeing RC
In the 70s when oil was cheap and in high demand, Boeing came up with a flying oil tanker to reach deep within alaska

Cl-1201
the biggest plane never built