Interesting Electric Pipistrel

Discussion in 'Electric Propulsion' started by rv6ejguy, Jun 27, 2019.

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  1. Jun 27, 2019 #1

    rv6ejguy

    rv6ejguy

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  2. Jun 27, 2019 #2

    AdvenJack

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    They had a great time flying this sweet-heart of a plane!
     
  3. Jun 27, 2019 #3

    rv6ejguy

    rv6ejguy

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    Yes. Interesting to see the power needed to fly under different flight conditions. Also, you just hear the prop and airframe noise on the fly by. Pretty cool.
     
    Last edited: Jun 28, 2019
  4. Jun 27, 2019 #4

    RCBinChicken

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    WOW! Gorgeous! I looked up the MTOW for the Alpha (could only find the petrol version's data but one would hope they're pretty similar) and it gave a figure of 550kg. I'll assume ~500kg or less for this flight, as neither occupant looked that heavily built - but hauling half a tonne around at 80+kts, for only 20KW, is very nice as far as I can tell! Heck, by that, there are electric paramotor setups out there that could keep this plane in the air, if you ran them hot.
     
  5. Jun 27, 2019 #5

    pictsidhe

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    Notice the large span, high aspect ratio wing.
     
  6. Jul 12, 2019 #6

    RCBinChicken

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    Is that a subtle hint? :p
     
  7. Jul 12, 2019 #7

    Derswede

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    Are you saying that I'm FAT??? ;)
     
  8. Aug 18, 2019 at 8:59 PM #8

    Doggzilla

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  9. Aug 18, 2019 at 10:25 PM #9

    plncraze

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    Hmm. A giant battery and a few people fall some water. That sounds bad
     
  10. Aug 18, 2019 at 10:42 PM #10

    Hephaestus

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    Just like ICE, there's multiple points of failure. Burned up motor controller, bad rheostat on the throttle, high temp protection circuit, bolt could have vibrated off a lug... There's going to be plenty of these kinds of issues as people figure out what works.
     
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  11. Aug 19, 2019 at 5:21 AM #11

    Doggzilla

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    Exactly.

    There were a hell of a lot more ICE involved crashes early in development.

    It’s actually surprising there have been nearly no electric crashes so far.
     
  12. Aug 19, 2019 at 5:40 AM #12

    John.Roo

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    I also agree... This is part of development. Thank god it was no fatal accident.
    At the beginning we also had to solve problems - look here (time 5:20 - 6:30)

    But you have to start again :)


    Don´t expect that electric propulsion in aviation is simple like in RC models. When you cross power of 15-20 kW you have to face new challenges. However I still beleive that for small and sport aviation is electric propulsion good solution.


    Martin
     
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