Editing 2452: Aviation Firsts

{{comic
| number    = 2452
| date      = April 19, 2021
| title     = Aviation Firsts
| image     = aviation_firsts.png
| titletext = Mile High Club membership [✓] [ ] Discovery of parts of Amelia Earhart's skeleton [ ] [ ] Mid-flight incident that results in safe landing on the Hudson River [✓] [ ]
}}

==Explanation==
This comic reflects the [https://twitter.com/NASAPersevere/status/1384209173924089863 ''Ingenuity'' probe's first flight on Mars]. Now that ''Ingenuity'' has completed its first flight, Mars can be counted among planets with controlled powered flight. The preceding milestones in this list were completed by the first space probes to reach and then land on Mars. Flight, landing and controlled landing were variously achieved by some or all of the prior landers, depending upon your definition of flight, but certainly by the {{w|Mars_Science_Laboratory#Sky_crane_landing|Skycrane}} element used in landing both ''Curiosity'' and ''Perseverance'' rovers. These may not have qualified as controlled powered flight as they only used their power to control the landing, before flying off again under power without any more precise control than that needed to intentionally crash elsewhere.

The remaining milestones have only been completed on Earth, if at all, and also grow more bizarre and more specific further down the comic and extending into the title text.

{| class="wikitable"
! Milestone summary
! Achieved on&nbsp;Earth?
! Achieved on&nbsp;Mars?
! Explanation
|-
| Flight
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| rowspan=3 | All of these milestones were generally necessary for the success of previous exploratory missions on the surface of Mars.
|-
| Landing
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
|-
| Controlled landing
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
|-
| Controlled powered flight
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| This comic was released within hours of ''Ingenuity'' becoming the first aircraft in human history to take off, fly under its own power, and land, all on a planet other than Earth.
|-
| Loop
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| style="background-color: #FF8888; color: #000000; text-align: center;" | No
| Although {{w|Aerobatic_maneuver|loops}} are often performed in Earth's atmosphere by planes designed for high-speed aerobatics (such as stunt planes and fighter jets), such aircraft have yet to be deployed on any spacecraft leaving Earth. A loop does not yet seem to be practical or necessary to attempt over Mars.
|-
| In-flight meal
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| style="background-color: #FF8888; color: #000000; text-align: center;" | No
| Naturally, it would only make sense to serve food on a ''manned'' mission to Mars, which has not yet happened.
|-
| Planetary circumnavigation
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| style="background-color: #FF8888; color: #000000; text-align: center;" | No
| While planetary circumnavigation has been achieved outside of Mars's atmosphere by {{w|List_of_Mars_orbiters|many Mars orbiters}}, this is a list of ''aviation'' firsts, which would require controlled flight within an atmosphere.
|-
| Enormous wooden aircraft built by a reclusive billionaire that flies exactly once
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| style="background-color: #FF8888; color: #000000; text-align: center;" | No
| The {{w|Hughes H-4 Hercules}} (the "Spruce Goose") was a prototype wooden airplane, known for being the largest flying boat ever constructed. The Hercules was designed by aviation pioneer (and, latterly, famed recluse) Howard Hughes. The design was intended as a lightweight transoceanic transport for the the military, but the prototype, built out of wood because of aluminum shortages during World War II, was not completed until well after the end of the war and flew only a single time in 1947. Since 1991, it has been on permanent display at the {{w|Evergreen Aviation & Space Museum}} in McMinnville, Oregon, USA.
|-
| Hijacking by someone dubbed "D.B. Cooper" who demands money and then jumps out mid-flight to an unknown fate
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| style="background-color: #FF8888; color: #000000; text-align: center;" | No
| In 1971, {{w|Northwest Orient Airlines}} Flight 305 was famously hijacked by an enigmatic man who is best known by the pseudonym [[D. B. Cooper]] (although Dan Cooper was the name he actually used to buy his ticket). After being given a $200,000 ransom by the plane's crew, Cooper proceeded to parachute jump out of the plane using the rear {{w|airstair}} and was never confirmed to have been heard from again; many experts agree that the parachute jump was very risky and it's unlikely that Cooper survived. (Cooper was previously mentioned in [[1400: D.B. Cooper]] and [[1501: Mysteries]].)
|-
| Mile High Club membership
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| style="background-color: #FF8888; color: #000000; text-align: center;" | No
| The "{{w|mile high club}}" is a slang term for people who have had sexual intercourse while onboard an airplane in flight. Although the notion of {{w|sex in space}} is understood to be severely hampered by the limited life support and the complete lack of natural gravity,{{Citation needed}} it's not certain whether Mars's low gravity (compared to Earth) would make it similarly challenging to have intercourse within the planet's atmosphere.
|-
| Discovery of parts of Amelia Earhart's skeleton
| style="background-color: #FF8888; color: #000000; text-align: center;" | No
| style="background-color: #FF8888; color: #000000; text-align: center;" | No
| {{w|Amelia Earhart}} was a famous aviator who, along with her navigator {{w|Fred Noonan}}, went missing over the Pacific Ocean in 1937 while attempting a global circumnavigation flight and has never been found. It was previously believed the skeleton of one of them had been found on Nikumaroro island (then called Gardner Island), but this theory is contentious and most scholars reject it today. While there's still a remote possibility that the remains of Earhart and Noonan will eventually be discovered somewhere in the Pacific, the notion of them somehow ending up on the surface of Mars is practically impossible outside the remit of certain conspiracy theories. (Earhart was previously mentioned in [[1501: Mysteries]], [[950: Mystery Solved]], and [[2197: Game Show]].)
|-
| Mid-flight incident that results in safe landing on the Hudson River
| style="background-color: #88FF88; color: #000000; text-align: center;" | Yes
| style="background-color: #FF8888; color: #000000; text-align: center;" | No
| The {{w|US Airways Flight 1549|Miracle on the Hudson}} was a 2009 aviation incident in which an A320 operating US Airways Flight 1549 struck a flock of geese shortly after takeoff from LaGuardia Airport in New York City. Despite the plane losing all its engine power as a result of the bird strike, Captain Chesley Sullenberger successfully crash-landed in the nearby Hudson River with minimal injuries to the passengers onboard. Of course, it would be highly impractical for a powered flight that encounters a problem in the sky above Mars to then fly all the way to Earth just for an emergency landing in the New York area. It is much more likely that a location on mars would, at some point in the future, be named "The Hudson River" and an aircraft land there safely.{{Citation needed}}
|-
! Milestone summary
! Achieved on&nbsp;Earth?
! Achieved on&nbsp;Mars?
! Explanation
|}

==Transcript==
:[A chart is shown with nine items. To the right of each item there are two check boxes. Above the top row of check boxes are two underlined labels for the two columns. The first four rows have both boxes checked, and the last five have only the first box checked. The last two items are so long that they take up three and four rows of text. The first seven items are written on one line each.]

                                  <u>Earth</u>    <u>Mars</u>
                           Flight  <big>[✓]</big>    <big>[✓]</big>
 
                          Landing  <big>[✓]</big>    <big>[✓]</big>
 
               Controlled landing  <big>[✓]</big>    <big>[✓]</big>
 
        Controlled powered flight  <big>[✓]</big>    <big>[✓]</big>
 
                             Loop  <big>[✓]</big>    <big>[ ]</big>
 
                   In-flight meal  <big>[✓]</big>    <big>[ ]</big>
 
       Planetary circumnavigation  <big>[✓]</big>    <big>[ ]</big>
 
         Enormous wooden aircraft
 built by a reclusive billionaire  <big>[✓]</big>    <big>[ ]</big>
          that flies exactly once
 
      Hijacking by someone dubbed
        "D.B. Cooper" who demands  <big>[✓]</big>    <big>[ ]</big>
         money and then jumps out
    mid-flight to an unknown fate

{{comic discussion}}

[[Category:Aviation]]
[[Category:Mars rovers]]
[[Category:Charts]]
[[Category:Comics featuring Amelia Earhart]]
[[Category:Comics featuring D. B. Cooper]]
[[Category:Sex]]