• =?UTF-8?Q?It=e2=80=99s_Time_To_Admit_It=2c_the_Ingenuity_Mars-Copte?= =

    From a425couple@21:1/5 to All on Wed Jun 14 11:56:28 2023
    XPost: alt.astronomy, alt.fan.heinlein

    from https://www.autoevolution.com/news/its-time-to-admit-it-the-ingenuity-mars-copter-is-the-greatest-aircraft-to-ever-fly-216431.html

    It’s Time To Admit It, the Ingenuity Mars-Copter Is the Greatest
    Aircraft To Ever Fly
    Home > News > Editorial

    13 Jun 2023, 00:06 UTC • By: Benny Kirk Benny Kirk profile photo
    Without the benefit of hindsight to guide their way, the Wright Flyer I
    managed to be a pretty rotten flying machine. It was indeed planet
    Earth's first heavier-than-air, human-crewed aircraft to fly, and
    therefore both the best and worst of the breed by default for a time.
    But for all of these reasons, it's remarkable how the first aircraft of
    any kind on Mars is anything but rotten. If you ask us, the Ingenuity
    Mars copter is the finest aircraft ever to fly. Let's take a look at why.

    NASA Ingenuity Spacecraft on Mars
    23 photosPhoto: NASA
    This annotated image depicts the multiple flights and two different routesIngenuity helicopter snaps image of Séítah region on MarsNASA
    Ingenuity helicopterIngenuity helicopter snaps image of Séítah region on MarsIngenuity helicopter snaps image of Séítah region on Mars Ingenuity helicopter snaps image of Séítah region on MarsThe drill hole made by Perseverence into the surface of a Martian rock named "Rochette"NASA's Perseverance rover gearing up to drill into the rock at the center of
    this imageNASA's Perseverance rover preparing to drill into the Martian rockNASA Perseverance rover sample tubeNASA Perseverance rover sample
    tubeNASA Perseverance rover used its Mastcam-Z imaging system to take 360-degree panorama of Van Zyl Overlook region on MarsNASA Perseverance
    rover used its Mastcam-Z imaging system to take 360-degree panorama of
    Van Zyl Overlook region on MarsNASA Perseverance rover used its
    Mastcam-Z imaging system to take 360-degree panorama of Van Zyl Overlook
    region on MarsNASA Perseverance rover used its Mastcam-Z imaging system
    to take 360-degree panorama of Van Zyl Overlook region on MarsNASA
    Ingenuity helicopter snaps image of South Séítah on August 16thNASA
    Ingenuity helicopter snaps image of South Séítah on August 16thNASA
    Ingenuity helicopter snaps image of South Séítah on August 16thViews
    captured by Ingenuity of the Jezero Crater region called SéítahViews
    captured by Ingenuity of the Jezero Crater region called SéítahViews
    captured by Ingenuity of the Jezero Crater region called SéítahViews
    captured by Ingenuity of the Jezero Crater region called Séítah

    But to understand why the first aircraft on Earth and Mars' are so
    profoundly different (besides 110 years of age, of course), we need to understand just how diabolical of a flying contraption the Wright Flyer
    I truly was. All one needs to do to get a clue of the Wright Flyer's
    faults is merely look at the thing for more than five seconds to see how different it looks compared to aircraft produced even a couple of years
    later. Ample use of spruce and ash wood and thin canvas in the Wright
    Flyer's airframe may have kept it light enough for its 201 cubic-inch (3.29-liter), 12-horsepower, four-cylinder engine to push the thing into
    the air.

    But that didn't mean it didn't come at the cost of massive instability
    around all three axes of flight. With elevators mounted way too close to
    the center of gravity and at the front of the plane instead of the rear,
    the only explanation behind Wilbur and Orville choosing this
    configuration is the above-mentioned lack of hindsight. "But what about
    the ailerons?" we hear you screeching from beyond the screen. Well, the
    Wright Flyer I didn't have any ailerons. Instead, a length of cable
    connected directly to the aircraft's wing tips simply warped the wing to
    give a rudimentary form of flight control. Oh, and the rudder was about
    as effective as the brakes on an old Lada.

    In total, the longest of the four flights conducted at Kitty Hawk, North Carolina, on December 17th, 1903, covered less than 1,000 feet (304.8
    m), was aloft for barely below one minute, and landed so shakily that by
    the day's end, both Wright Brothers damned the thing as unflyable and
    never attempted to sit in its cockpit again. To top it all off, a brisk
    dust storm fell over Kitty Hawk just as flight testing concluded. This
    storm sent the world's first human-crewed airplane tumbling end-over-end
    across the sand and damaged it. It's been said by historians at the
    Smithsonian National Air and Space Museum that Wilbur and Orville
    intended to burn the first Wright Flyer rather than save it as a museum
    piece.

    This alone speaks volumes about what an infernal airplane the world's
    first must have been. But in every aspect where the Wright Flyer I was
    so horrible, NASA's Ingenuity Mars probe is the equal and exact
    opposite. Launched aboard a United Launch Alliance Atlas V rocket
    alongside the Mars 2020 program's Perseverance Rover, it'd take roughly
    a month lying in wait on the Martian surface before the little RC
    helicopter nicknamed "Ginny" spooled up its rotors and showed the world
    how far we've come in 120 years of aviation.

    NASA Ingenuity helicopter
    Photo: NASA/JPL-Caltech/ASU
    On these historic first few test flights on April 19th, 2021, Ginny
    tested some equipment that would have looked like witchcraft to old
    Wilbur and Orville. Powered by a set of six Sony SE US18650 VTC4
    lithium-ion batteries similar to what you'd find in a hardware store,
    Ginny's 300 watts of engine power roughly rivals a mid-tier 1/12th-scale
    RC car or terrestrial aerial drone. But the avionics, sensors, and
    camera arrays that make Ginny capable of dozens of flights back to back
    are truly what makes Ginny a remarkable machine. In particular, Ginny's
    Sony IOMX 214 high-definition camera with an impressive 4208 x
    3120-image resolution might be the toast of the whole darn probe.

    But even in ways besides high technology, Ingenuity proves how more than
    a century-plus does wonders for understanding the real ins and outs of
    powered flight. In every way that the Wright Flyer I flew with all the
    grace of a seagull with a fork stuck in its beak, Ingenuity is graceful,
    even dignified in the air. With a light-weight four-pound (1.8-kg)
    airframe to lug around and carbon-fiber rotors that cut through the thin Martian atmosphere with microscopic precision, it's no wonder Ginny's
    spent more than an hour and a half in powered flight over 51 attempts so
    far. For some context, the Wright Flyer I only ever flew for roughly 98
    seconds total over four agonizing flights.

    By just about every conceivable metric, Ingenuity is the embodiment of
    every achievement made in aeronautical engineering made by pioneers the
    world over. It's saddening to think about how many brave men and women
    gave their souls and their lives to the advancement of aviation. But in
    the end, every ounce of blood, sweat, tears, and other bodily fluids
    liable to be spilled in-flight over the last century-plus has led to a
    species that can fly an RC helicopter around the surface of another
    heavenly body tens of millions of miles away. As if NASA was completely
    under the spell of obvious symbolism, a small piece of fabric from one
    of the Wright Flyer I's infernally-useless wings is sealed inside Ingenuity.

    If that isn't the poetry in motion, we don't know what is. But if you're
    still not all that impressed, just know NASA's been working on a
    follow-up aircraft to Ingenuity slated to be launched on a future probe
    mission to the red planet. We can only imagine what that thing's capable
    of. But for now, if you ask us, we'd be so bold as to say the Ingenuity
    probe is the finest aircraft ever to take to the skies. There, we said
    it. Let us know in the comments if we're totally full of it. At least
    Ginny isn't liable to fall end over end in a wind storm. But it's only
    because there's probably not enough atmospheric pressure on Mars to make
    that happen. It still counts.
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  • From Jim Wilkins@21:1/5 to All on Thu Jun 15 19:15:07 2023
    XPost: alt.astronomy, alt.fan.heinlein

    "a425couple" wrote in message news:x3oiM.1139$1CTd.73@fx03.iad...

    But that didn't mean it didn't come at the cost of massive instability
    around all three axes of flight. With elevators mounted way too close to
    the center of gravity and at the front of the plane instead of the rear,
    the only explanation behind Wilbur and Orville choosing this
    configuration is the above-mentioned lack of hindsight. "But what about
    the ailerons?" we hear you screeching from beyond the screen. Well, the
    Wright Flyer I didn't have any ailerons. Instead, a length of cable
    connected directly to the aircraft's wing tips simply warped the wing to
    give a rudimentary form of flight control. Oh, and the rudder was about
    as effective as the brakes on an old Lada.

    ---------------------

    That's too harsh on them. The front elevators, soon to be named Canards,
    bore enough of the weight to enable recovery from a stall such as killed Lilienthal. Twisting the wings minimized additional drag. Their mistake was believing they were done inventing and making the Model B almost identical. https://en.wikipedia.org/wiki/Vin_Fiz_Flyer

    I've examined a replica up close and watched the construction of another.
    The simple design allows rapid repair in the field. The connections are
    metal pivots lashed to the wood with butchers' twine, a type of joint that keeps the struts in pure compression where they are strongest.

    Hap Arnold wrote about learning to balance on the Wright flight simulator, which sat on a sawhorse and could be banked or held level by
    pilot-controlled clutches that dragged on rising and falling ropes at the "wing" tips.

    BTW when the first batch of non-official pilot's licenses was issued in
    1911, Wilbur received #5, since they were assigned alphabetically so Glenn Curtis got #1. Orville declined the offer to receive the #1 Federal license
    in 1927.

    Alberto Santos-Dumont was also an experienced pilot when he made the first airplane flight in Europe. He had been tooling around Paris in his
    dirigibles since 1898.

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