Sonex announces 2-place SubSonix personal jet

Discussion in 'Home Builders and Sport Pilots' started by Stan Cooper, Jul 11, 2019.

  1. Andrew Morris

    Andrew Morris Filing Flight Plan

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    Haha, this! Sign me up!

    From what I’ve read and seen the TJ100 has proven extremely reliable and has operated just about flawlessly for a good eleven years now. I’m a big fan of the engine and newly announced airframe combination.

    By the way, what does IP stand for in regards to starting with one when you train in the two-place version?
     
  2. Stan Cooper

    Stan Cooper Line Up and Wait

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    Just guessing, but maybe instructor pilot?
     
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  3. Tantalum

    Tantalum En-Route

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    This could be a very fun toy to have in your hanger...
     
  4. Tantalum

    Tantalum En-Route

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    ^the sound alone is worth it.. in my book
     
  5. SkyDog58

    SkyDog58 Touchdown! Greaser! PoA Supporter

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    Canis Non Grata
    Even if it doesn't provide any performance or efficiency benefits? Just because it's a jet?
     
  6. Tantalum

    Tantalum En-Route

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    ^yes. In thrust we trust
     
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  7. Velocity173

    Velocity173 Touchdown! Greaser! PoA Supporter

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    I like the sound of a jet also, I just don’t really care for the looks of Subsonex. If we’re gonna make a non pressurized kit, then do a composite. I think a well designed 2 seat carbon kit with a TJ-150 could hit 250 KTAS. Add a little more gas and baggage and you’d actually have some utility out of it.
     
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  8. LoLPilot

    LoLPilot Pre-takeoff checklist

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    Yes. Just because it's a jet. And you could say "my jet." And it makes jet sounds and sucks down kerosene like it's going out of style.
     
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  9. Brad Smith

    Brad Smith Line Up and Wait

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    Is the fuel burn on this jet measured at the flight levels or at the typical low altitudes we usually fly at? Jets have a very high fuel burn rate at the lower altitudes so this would be good to know when interpreting the factory claimed range with reserves.
     
  10. kyleb

    kyleb En-Route PoA Supporter

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    I can’t answer that directly, but Paul Dye, who has one of the single seaters indicates that airplane’s practical range is 200-250 nautical miles. The 2 seater carries 10 gallons more fuel, but the single seater is probably more efficient because it is smaller and should have a higher climb rate allowing it to get to more efficient altitudes sooner. All of which tells me the 2 seater will have about the same range as the single seater.
     
  11. LoLPilot

    LoLPilot Pre-takeoff checklist

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    I think it’s safe to say that with the general market of the Sonex style kits that the idea is that the airplanes will be operating at lower than the flight levels.
     
  12. Stan Cooper

    Stan Cooper Line Up and Wait

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    AVweb interviews Paul Dye with his singe place SubSonex at AirVenture.

     
  13. Stan Cooper

    Stan Cooper Line Up and Wait

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    Paul Dye says he flies his single place SubSonex at 17,500 eastbound and 16,500 westbound, and says after about two hours it turns into a glider. :)
     
  14. Tantalum

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    Yeah... there is something odd about them.. on the one hand they're sort of steampunk (which is cool) but on the other they look super homebuilt.. which, duh, but as you mentioned there are more attractive designs out there

    If I had the time, resources, and was just a little crazier, I'd love to take a Velocity Twin but ditch the two engines and instead toss 4 of those little turbines in there... a la YB-49

    With 4 of those little jets I'd get 1,000 lbs of thrust.. that's pretty bad ass.. and if Martin Hollman and Mark Bettosini's book is at all accurate that should be about 50 percent more static thrust than what the twin IO360 (180 hp) would get me

    Fuel burn would be absolutely in the garbage around 70 gallons an hour.. but a plane like that would be a novelty more than anything else

    upload_2019-7-25_13-36-50.png
     
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  15. Velocity173

    Velocity173 Touchdown! Greaser! PoA Supporter

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    Well it’s not an ugly aircraft by any means, it just looks like what it is, essentially a Waiex with a turbine mounted to the top. Just looks ad hoc to me. I’d rather see something like a 2 seat mini Cirrus Jet that could have some more speed and utility.
     
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  16. SkyDog58

    SkyDog58 Touchdown! Greaser! PoA Supporter

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    Well, if you really must have a Jet engine ....


    D7265B79-5978-49DA-9A7F-5443EE089E1C.jpeg
     
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  17. Andrew Morris

    Andrew Morris Filing Flight Plan

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    Speed trials from Paul in his initial testing were 200 knots true at 12,500ft burning 23 GPH.