10 Bizarre Attempts At Vertical Takeoff And Landing Aircraft

Vertical takeoff and landing aircraft (VTOL) have always felt a bit like cheating the laws of physics.
Why bother with long runways when you can just rocket straight up like a helicopter and then zoom off
like a jet? During the Cold War, that idea became an obsession. Engineers in the United States and
around the world tried every configuration they could dream up: tailsitters, flying saucers, ducted fans,
tilt-wings, tilt-ducts, and even what looked suspiciously like an airborne metal bunk bed.

Some of those experiments directly influenced later successes like the Harrier and modern tilt-rotor
aircraft. Many others… did not. Still, these bizarre VTOL aircraft tell an incredible story about
military anxiety, technological optimism, and what happens when you give smart people budgets and
permission to get weird. Let’s climb aboard ten of the strangest vertical takeoff and landing aircraft
ever built.

1. Convair XFY-1 “Pogo”: The Fighter That Landed Like a Pencil

If you’ve ever tried to balance a broomstick on your finger, you’ve already experienced the basic control
problem behind the Convair XFY-1 Pogo. This experimental U.S. Navy VTOL fighter of the 1950s
stood on its tail like a rocket, with a big turboprop engine driving contra-rotating propellers. The idea
was simple in theory: store fighters on the decks of small ships, have them shoot straight up, intercept
enemy bombers, and then come back down to perch neatly on their tails.

In practice, it was terrifying. The pilot had to take off vertically, tilt into level flight, complete the
mission, then reverse the entire process and land while essentially flying backward toward the ground. To
see the landing area, he had to twist his neck and look over his shoulder, while managing throttle and
tiny control inputs to keep the aircraft from toppling. Test flights showed the Pogo could transition
between vertical and horizontal flight, but everyone eventually realized that only a handful of superhuman
pilots would ever be able to land it safely on a small pitching ship. The project was quietly canceled,
and the XFY-1 retired to museum duty instead of convoy defense glory.

2. Lockheed XFV-1 “Salmon”: The Tailsitter That Never Quite Sat

Developed in parallel with the Pogo, the Lockheed XFV-1nicknamed the “Salmon” after its test pilotwas
another U.S. Navy attempt at a tailsitting VTOL fighter. It had cruciform tail surfaces and a huge prop,
designed to stand on its tail for takeoff and landing just like its Convair rival. On paper, the XFV-1
promised similar performance, using the same family of powerful turboprop engines.

There was one small problem: it never actually pulled off a full vertical takeoff or landing in free
flight. Early tests used a temporary conventional landing gear and long runways while engineers tried to
refine controls and engine response. The aircraft was underpowered, and the Navy realized that even if a
stronger engine arrived, landing this thing on its tail would still be a nightmare. With the Pogo already
showing how difficult tailsitters were to operate, the Salmon became an expensive lesson in when to cut
your losses.

3. Ryan X-13 Vertijet: A Jet That Parked on a Trailer

Props are one thing; doing the whole tailsitter trick with a pure jet engine is something else entirely.
That was the mission of the Ryan X-13 Vertijet, a tiny U.S. Air Force VTOL jet built to prove that a
jet-powered fighter could take off vertically, transition into forward flight, and then come back to an
upright hover. Instead of landing on its tail skid on the ground, the X-13 used a special trailer with a
vertical frame and a cable. The pilot had to hover, gently nudge the nose into the cable, and then let the
aircraft hang there.

Amazingly, the X-13 pulled it off. Demonstrations showed clean transitions from vertical to horizontal
flight and back again. The problem wasn’t whether it workedit was whether anyone actually needed it.
By the late 1950s, the Air Force decided that the complexity of special trailers and the scary landing
maneuver wasn’t worth the slight basing advantage. Conventional jets were getting faster and longer-ranged,
and improving missiles threatened any small forward base anyway. The X-13 proved the concept, then went
straight to the museum instead of the front line.

4. Avro Canada VZ-9 Avrocar: The Flying Saucer That Couldn’t Quite Fly

Secret Cold War program? Check. Disk-shaped airframe? Check. Experimental VTOL lift system? Check. If the
Avro Canada VZ-9 Avrocar doesn’t sound like a classic UFO conspiracy theory prop, nothing does. Funded
by American military money and built in Canada, this “flying saucer” was supposed to hover like a
helicopter and then zip away at high speed using a central “turborotor” and the Coandă effect to redirect
airflow around the rim.

The reality was considerably less sci-fi. At low altitude, the Avrocar could just about hover in ground
effect, wobbling like a badly balanced bar stool. Climb higher and control authority dropped off sharply.
Stability problems, noise, and heat issues doomed the idea as a serious combat vehicle. In the end, the
Avrocar became more famous as a curiosity in museums and documentaries than as a practical VTOL craft.
Still, its experiments with ducted fans and lift-augmenting flow helped inspire later conceptseven if it
never patrolled Area 51.

5. SNECMA C.450 Coléoptère: The French Beetle with a Donut Wing

Leave it to French engineers to look at tailsitters and say, “Yes, but what if we make it round?”
The SNECMA Coléoptère (“beetle”) was a 1950s French VTOL research aircraft built around an annular wing
essentially a giant duct forming a ring around the fuselage. Inside sat a powerful turbojet engine, and the
whole thing took off vertically on its tail, balanced by small fins and reaction controls.

It looked like a cross between a rocket, a donut, and a space heater. Test flights showed that the beetle
could lift off and transition into forward flight, but the combination of limited visibility, complex
controls, and aerodynamic quirks made it dangerously unstable. On one infamous test flight, the prototype
entered wild oscillations; the pilot ejected at low altitude and survived, but the sole Coléoptère slammed
into the ground and was destroyed. Any dream of operational annular-wing VTOL fighters died with it, though
the project remains one of the boldest (and weirdest) attempts in VTOL history.

6. Hiller VZ-1 Pawnee: The Personal “Flying Platform”

Imagine standing on a round platform with ducted fans underneath you, shifting your weight like you’re on
a powered skateboard that happens to be hovering. That’s essentially the Hiller VZ-1 Pawnee, a 1950s
“flying platform” developed for the U.S. Army. The pilot stood upright on top of a ducted-fan disc, steering
largely by leaning their body in the desired directionwhat designers called “kinesthetic control.”

In early tests, the idea actually worked. The platform was relatively stable near the ground, and its
intuitive control system meant that novice pilots could manage basic maneuvers quickly. The trouble came
when the Army asked for more power and payload. Added engines and weight made the platform harder to
control and less forgiving. Meanwhile, helicopters were getting better at exactly the kinds of missions
the Pawnee was supposed to fill. The flying platform was eventually shelved, but its ducted-fan concept
feels strangely familiar today in the age of electric multicopters and “personal air vehicle” startups.

7. Doak VZ-4: The First Tilt-Duct Convertiplane

Before tilt-rotors like the V-22 Osprey, there was the Doak VZ-4, a small American VTOL research aircraft
with tilting ducted fans at the wing tips. A single engine in the fuselage drove both fans through a
mechanical shaft system. For vertical takeoff and landing, the ducts pointed straight up; for level flight,
they rotated forward like compact turboprop nacelles.

The concept worked surprisingly well for a one-off prototype. Test flights demonstrated vertical takeoff,
hover, transition, and relatively efficient forward flight. However, the Army eventually decided that
helicopters were cheaper and simpler for most roles, and the additional mechanical complexity of tilt-duct
systems didn’t seem worth the maintenance headaches. The lone VZ-4 ended up as a research article rather
than a production model, but it proved that tilt-duct VTOL was more than just a paper ideaand it foreshadowed
many of today’s tilt-fan electric VTOL projects.

8. LTV XC-142: The Tilt-Wing Transport That Shook Everything

If you’ve ever watched a tilt-rotor aircraft and thought, “Cool, but what if the whole wing moved?” you’re
in good company. The LTV XC-142 was a 1960s American experimental transport aircraft whose entire wing
tilted up for vertical operations. Turbo-prop engines and large propellers provided lift for VTOL and STOL
(short takeoff and landing), then rotated forward for efficient cruise. On paper, it was a dream: a
battlefield transport that could carry troops and cargo like a helicopter but fly fast like a turboprop.

In the real world, the XC-142 could do the missionbut it suffered from vibration, noise, and complex
mechanical systems. The tilting wing and interconnected power system created maintenance and reliability
headaches. Different branches of the U.S. military initially backed the program, but one by one they lost
interest as priorities shifted and helicopters continued to improve. The XC-142 set impressive VTOL
performance numbers but never made it into service, leaving tilt-rotor designs to carry the legacy forward.

9. Dornier Do 31: The Only VTOL Jet Transport Ever to Fly

The Dornier Do 31 looks like someone took a normal military transport jet and then duct-taped extra
engines to the sides. Built in West Germany in the 1960s, it was the world’s only jet-powered VTOL transport
aircraft. Each wingtip pod housed multiple lift jets, while the main engines had swiveling nozzles to help
with vertical operations. The goal was to create a tactical transport that could operate from improvised
fields or dispersed sites, avoiding vulnerable air bases.

Technically, it worked: the Do 31 performed full VTOL flights, transitions, and demonstrations at airshows.
It even set several world records for VTOL transport performance. Unfortunately, the price of all those
engines was weight, complexity, and massive fuel consumption. In an era of tightening budgets, the German
Air Force and NATO ultimately concluded that conventional transports and helicopters offered better
cost-effectiveness. The Do 31 program was canceled, and the surviving prototype became a museum centerpiece
and a reminder that sometimes the wildest engineering feats make the least economic sense.

10. Rolls-Royce Thrust Measuring Rig: The Original “Flying Bedstead”

Our last machine barely qualifies as an “aircraft” in the conventional sense, but it absolutely deserves a
spot on a list of bizarre VTOL experiments. The Rolls-Royce Thrust Measuring Rig, nicknamed the
“Flying Bedstead,” was essentially a rectangular steel frame with two jet engines pointing straight down
and a pilot perched on top. No wings, no tail, no fuselagejust raw jet lift and a lot of courage.

Built in the 1950s as a research rig, it was designed to study the stability and control challenges of
pure jet-lift VTOL. Pilots hovered a few dozen feet off the ground while engineers tested automatic
stabilization systems and control schemes. It was extremely power-limited and demanded precise throttle
work to avoid abrupt climbs or bone-jarring landings. Despite its crude appearance, the Flying Bedstead
generated valuable data that fed into later VTOL programs and even influenced lunar-landing research
concepts. It proved that jet-lift was possibleand also that nobody really wanted to commute on one.

What These Weird VTOL Aircraft Actually Taught Us

It’s easy to laugh at flying saucers, beetle-shaped tailsitters, and ducted-fan pogo sticks, but these
projects weren’t just engineering cosplay. Each experiment tackled real problems that still haunt modern
vertical takeoff and landing aircraft: how to stabilize a machine in hover, how to transition smoothly
to forward flight, how to give the pilot (or computer) enough situational awareness and control authority
to avoid catastrophe, and how to make the whole package affordable and maintainable.

Many of these designs failed in service terms but succeeded as data generators. They proved that certain
conceptstailsitters, for examplewere probably too demanding for human pilots in operational conditions.
Others, like ducted fans and tilt-wings, showed promise but needed better materials, sensors, and control
systems than mid-century technology could offer. The Harrier, later tilt-rotors, and today’s electric VTOL
aircraft are all standing on a stack of hard-won lessons earned by these strange prototypes and their very
brave test pilots.

VTOL Fever, Then and Now

The Cold War VTOL craze was fueled by fear of runways being knocked out by surprise attacks. Today’s VTOL
obsessionespecially with electric “air taxis”comes from a different anxiety: crowded cities and congested
roads. Yet the core appeal is the same. Vertical takeoff and landing aircraft promise flexibility,
survivability, and the sci-fi thrill of going straight up. Those 1950s tailsitters may never have seen
combat, but their DNA lives on every time a modern tilt-rotor rotates its engines skyward or a multirotor
drone lifts off from a backyard.

Experiences and Imagination: Living With Bizarre VTOL Aircraft

Standing on the Ramp with a Tailsitter

Picture yourself as a young Navy sailor in the mid-1950s, standing on the deck of a test airfield as the
Convair XFY-1 Pogo spools up. Instead of rolling down the runway, it simply roars straight upward, prop
tips blurring into an invisible disc. Noise hits you in the chest more than the ears; the aircraft dangles
above the runway like an angry wasp. You watch the pilot gently nudge it into forward flight, the whole
machine slowly tipping over until suddenly it’s a sleek little fighter streaking away across the desert sky.

The real show, though, is the landing. As it returns, the Pogo pitches its nose skyward and begins to slow,
hanging almost motionless above the runway. You can see the pilot’s helmet turned sideways as he tries to
keep the landing area in view. Everyone on the ground knows that a small mistake here doesn’t mean a bumpy
touchdownit means broken aluminum and a long accident report. When it finally settles onto its tail
supports, the sense of relief is almost as loud as the engine noise.

Test Pilot Life: From Flying Saucers to Flying Bedsteads

Now shift perspectives to the cockpit. Being a VTOL test pilot in that era meant constantly flying machines
that didn’t behave like anything you learned in flight school. In the Avrocar, you sat inside a noisy,
vibrating metal saucer with limited visibility, trying to keep it from skittering sideways like a skipped
stone any time you climbed out of ground effect. The controls didn’t feel like a normal airplane; they
felt more like balancing on a giant, overpowered air hockey puck.

Climb onto the Rolls-Royce Flying Bedstead and it gets even more surreal. There’s no fuselage around you,
no wings outside the canopyjust a skeletal frame and open air. You’re basically sitting on top of two
jet engines that are pointing straight down. Throttle movements take time to translate into thrust changes,
so you have to “lead” the aircraft, adding power before you really need it and easing off before you
overshoot. The sensation isn’t like flying; it’s like trying to balance a pogo stick made of flame.

Maintenance Crews and Engineers: Living With Complexity

Ask the ground crews and engineers, and they’ll tell you that the weirdness didn’t end in the air. The
Doak VZ-4 and LTV XC-142 had intricate transmissions, tilting mechanisms, and control linkages that turned
pre-flight inspections into scavenger hunts. Every extra shaft and bearing was another potential failure
point. Engineers spent countless nights tweaking stabilization systems, trying to tame an aircraft that
insisted on behaving like a nervous cat on a polished floor.

At the same time, that complexity was intoxicating. For many of the people involved, these programs were
career highlights. They were exploring territory no one had mapped before: how to blend jet thrust,
propeller physics, and human reflexes into a single controllable machine. Even when programs were canceled,
the experience shaped how they approached future aircraftwhat to simplify, what to automate, and which
“clever” design ideas to leave on the drawing board next time.

From Bizarre Prototypes to Everyday Flight

Today, when you see a tilt-rotor aircraft lift troops off a short landing zone or watch video of an electric
VTOL prototype quietly rising from a test pad, you’re seeing the spiritual descendants of these bizarre
machines. The flying saucer that never quite worked, the tailsitter that only aces could land, the flying
platform that turned its pilot into a human joystickeach one added a piece to the puzzle of vertical
flight. They may look absurd in old black-and-white photos, but they helped turn VTOL from science fiction
into a real, if still challenging, part of aviation.

In other words, the next time you watch a sleek, computer-stabilized VTOL prototype rise smoothly into the
sky, spare a thought for the brave souls who first strapped themselves to flying bedsteads, donuts, and
pogo sticksand called it a day at the office.