Sorrell Hiperbipe

Discussion in 'Flight Following' started by SoonerAviator, May 5, 2021.

  1. SoonerAviator

    SoonerAviator Final Approach

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    Anyone know much about these? Saw one at an EAA Fly-In last weekend and the wife asked when we are going to buy one, lol. Seem like a low-production kit, negative stagger, 2-seats and seem like a hoot to fly. Best I can tell is they cruise between 150-160mph and are full aerobatic. The fuselage is part of the lifting surface. Around 650lbs useful load. Not made anymore, but Thunderbird Aviation may own the SNS-7 rights. This was the one at the fly-in, and had a smoke system installed. I think the wife liked the color scheme more than anything!

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  2. Capt. Geoffrey Thorpe

    Capt. Geoffrey Thorpe Touchdown! Greaser! PoA Supporter

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    Oft repeated, but if it were true, it seems to me that it would be a real performance killer due to the abysmal aspect ratio of the fuselage.
    Other than that, they seem to be pretty cool, capable, aircraft.

    I suspect that @Hiperbiper would be the person to ask...
     
  3. Dana

    Dana En-Route

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    Fast, aerobatic, and biplane... what's not to like?

    Although, I've heard that they're sensitive enough that IFR without an autopilot is not recommended.
     
  4. SoonerAviator

    SoonerAviator Final Approach

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    Yeah I'd heard that an autopilot makes it a better XC bird, but I wouldn't imagine it would be well-suited for IFR even with one.
     
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  5. SoonerAviator

    SoonerAviator Final Approach

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    I'm sure if it does generate any meaningful lift, the drag penalty is probably enough to cancel it. The reason it may have *some* merit is that the fuselage stays wide/flat all the way through the empenage.
     
  6. pigpenracing

    pigpenracing En-Route

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    They are good airplanes! A friend of mine has one that he just rebulit. This is his 3rd one and the first one he built...
    The Sorrell brothers are no dummies. I have had lots of biplanes and I always say I will own one of these but just have not bought one yet.
     
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  7. luvflyin

    luvflyin Touchdown! Greaser! PoA Supporter

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    Nooooo!!!!! Stop!!!!! Don't start in on Bernoulli vs Newton. It's a cool lookin plane. Yer wife digs it. Life is good.:fingerwag:
     
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  8. asicer

    asicer Final Approach PoA Supporter

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    Is that a barcode on the belly?

    upload_2021-5-5_15-41-14.png
     
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  9. texasclouds

    texasclouds Pattern Altitude

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    Secksy bird!
     
  10. SoonerAviator

    SoonerAviator Final Approach

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    I saw the same thing, but I didn't notice until I saw the wife's picture the next day. Certainly looks like it, but I suppose it could be something else making appear like it's a barcode.
     
  11. Doug Reid

    Doug Reid Line Up and Wait

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    I remember the first write up in Sport Aviation..kind of reminded me of a Tailwind made into a biplane..nice !
     
  12. MauleSkinner

    MauleSkinner Touchdown! Greaser!

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    Looks like an air outlet for something...
     
  13. Hiperbiper

    Hiperbiper Line Up and Wait

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    Yes they are a hoot to fly. Yes the fuselage is a lifting surface. And yes they are stable...except in the yaw axis. The oddest thing to get used to is the rudder; poke right pedal and the nose slews right. And stays there. Same to the left. Kind of like a Bell 47 or Hiller helicopter. After a few flights you don't notice it. Almost 0 roll coupling.
    20210409_143136.jpg 20210322_121448.jpg
    Unfortunately, due the ill health 7HT is going up for sale...

    Chris
     
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  14. Marshall Alexander

    Marshall Alexander Pre-takeoff checklist

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    I go to 2K9 every Saturday that the weather permits. What do you fly, I'm sure I've seen you? I fly the RV9A with no paint, blue spinner, and pink cowling.
     
  15. SoonerAviator

    SoonerAviator Final Approach

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    I have been renting the veritable ol' C172s from Christiansen at RVS since I got the Private in '09. I live in South BA, so I'm about equidistant to 2K9 and RVS. I honestly hadn't been out to 2K9 since they did the new runway, so it's much nicer with so many new hangars and a longer/wider runway. Dave Embry is an acquaintance I know through a friend who is very active out there, builds some really stellar Carbon Cubs.
     
  16. SoonerAviator

    SoonerAviator Final Approach

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    Very sorry to hear about the health issue. The lack of roll coupling is an interesting behavior, but it escapes me how it would be detrimental aside from having to be more proactive on the opposite rudder to correct yaw angle, say in a crab (versus just releasing the rudder).
     
  17. steingar

    steingar Taxi to Parking

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    Sorry to hear. It'll happen to all of us eventually with a little luck, but still not a nice thing to hear about.
     
  18. unsafervguy

    unsafervguy Pattern Altitude

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    one holds the record for most consecutive outside loops (208) set by joann osterud in 1989
     
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  19. SoonerAviator

    SoonerAviator Final Approach

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    I think I read that the aerobatic (flip-flop) tank, in normal build spec, was like 13 gallons. That's like over an hour of inverted flying, lol. However, that doesn't address issues with engine oil.
     
  20. tspear

    tspear En-Route

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    Sorry about the health issues. Your plane looks very cool.

    Tim

    Sent from my HD1907 using Tapatalk
     
  21. Capt. Geoffrey Thorpe

    Capt. Geoffrey Thorpe Touchdown! Greaser! PoA Supporter

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  22. Hiperbiper

    Hiperbiper Line Up and Wait

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    The Hiperbipe has two tanks; 26 gallons with a fixed pick up and 13 gallons with a flop tube. In the "Super Nova" Hiperbipe Joann flew there were flop tubes in both tanks. She also doubled up the tail brace wires for some reason...
    7HT has full inverted fuel and oil. Also has a 7 gallon smoke oil tank and a Smoking Airplanes smoke pump.
    The lack of yaw centering isn't a bad thing, it's just different from a Decathlon etc.

    Chris
     
  23. Seanaldinho

    Seanaldinho Pattern Altitude

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    Always found the hiperbipe to be a great looker, would love to fly one.