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Thread: First flight of the Sirocket - jet ultralight

  1. #1
    Adam Smith's Avatar
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    First flight of the Sirocket - jet ultralight


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    Pretty cool... good thing he had a long runway though... 104 lbs thrust at, say, 30mph (liftoff speed?) translates to 8.3HP, equivalent maybe to a 15HP piston engine turning a prop.

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    steveinindy's Avatar
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    104 lbs thrust at, say, 30mph (liftoff speed?) translates to 8.3HP, equivalent maybe to a 15HP piston engine turning a prop.
    That begs the question that if you've got the horsepower equivalent of a low-end riding lawnmower, what's the point of even making a jet powered ultralight? It's certainly different but I just don't see the reasoning behind it.

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    rosiejerryrosie's Avatar
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    Quote Originally Posted by steveinindy View Post
    That begs the question that if you've got the horsepower equivalent of a low-end riding lawnmower, what's the point of even making a jet powered ultralight? It's certainly different but I just don't see the reasoning behind it.
    Reduces the possibility of inadvertantly walking into to a spinning propeller????
    Cheers,
    Jerry

    NC22375
    65LA out of 07N Pennsylvania

  5. #5

    1st jet U/L at Oshkosh

    It was back in the early 90s we had a guy show up on the Farm with a jet powered Mitchell Wing. He had used an APU that developed about 150lbs of thrust. He could only fly it for 18mins before he used up his 5 gals of fuel and he had to land before that happened or it would run out of lube.

    I was on the main airshow announcing stand and in radio contact with Jamie Kee on the radio. He let me know 1 min before he was ready to take off on 36. I was chatting with Roscoe, Larry, Wayne and a few other anouncers. We all had mics on and they could hear the sound of the jet engine but they couldn't find it! They were looking way too far ahead of the noise!!!! We had a ball talking about the pilot wearing full leathers, white with flames with the line "Kick the tires and light the fires" on the back.

    He flew north on 36, made one pass and landed back on the U/L strip.

    Roscoe and the guys said for all the noise he sure wasn't going anywhere. I reminded them and the audience that ultralights were resticted to 55kts and that's what he was doing.

    It was a hoot!!!!


    Frank "WOOF" Beagle
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    Chad Jensen's Avatar
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    Quote Originally Posted by steveinindy View Post
    That begs the question that if you've got the horsepower equivalent of a low-end riding lawnmower, what's the point of even making a jet powered ultralight? It's certainly different but I just don't see the reasoning behind it.
    I always counter these questions with...why not? We won't move forward if people don't take the ideas in their heads, and make them reality.

    I personally loved this video and the idea. Power requirements appear adequate for what he is doing/testing, and just being able to say you have a jet powered ultralight is reason enough for me!

    Chad Jensen
    EAA #755575

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    Why put engines on a glider? And launch it off a sand dune? Crazy idea. What purpose will that ever serve?

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    Check 6's Avatar
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    Quote Originally Posted by steveinindy View Post
    That begs the question that if you've got the horsepower equivalent of a low-end riding lawnmower, what's the point of even making a jet powered ultralight? It's certainly different but I just don't see the reasoning behind it.
    One can log multi-engine jet time on the cheap.

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    Sometimes, people do things just because nobody else is doing it.




    Quote Originally Posted by frankbeagle View Post
    It was back in the early 90s we had a guy show up on the Farm with a jet powered Mitchell Wing. He had used an APU that developed about 150lbs of thrust. He could only fly it for 18mins before he used up his 5 gals of fuel and he had to land before that happened or it would run out of lube.
    You can see videos of the B-10 Michell Wing in action with it's jet engine on YouTube. Pretty cool even if it has no practical purpose.

  10. #10
    steveinindy's Avatar
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    I always counter these questions with...why not? We won't move forward if people don't take the ideas in their heads, and make them reality.
    I agree...but I also see it as one of those "solution without a problem" sort of deals. What exactly is being moved forward by strapping a turbine to an ultralight? The ultralight market is so limited (not in business terms necessarily but in terms of the performance limitations) that it just seems like a one-off more than an advancement.

    One can log multi-engine jet time on the cheap.
    Touche. LOL However, remember that a lot of ultralights are flown by non-certificated pilots.

    While I think this is a possibly good idea for the experienced certificated crowd, I just see it as a potential issue given the "touchiness" of a turbine (not to mention the increased maintenance issues) if it were to become commonplace among the non-certificated subset. The last thing we need is more maintenance or engine issues given that we already have the NTSB and FAA watching us closely on that.

    He could only fly it for 18mins before he used up his 5 gals of fuel and he had to land before that happened or it would run out of lube.
    Yup. That's kind of what I'm worried about the non-certificated ultralight crowd not abiding by.

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