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Jet Gyro project gyroplane

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  • Jet Gyro project gyroplane


  • #2
    wow nice did he test the thrust on it? this must put out monster thrust numbers.
    it looks very different I like it.
    I'm a gyro Dude now! Bensen FTW

    FRANK

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    • #3
      Didn't this gyro start life as a tractor?

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      • #4
        Originally posted by Alan_Cheatham View Post
        Didn't this gyro start life as a tractor?
        I believe it was a grain harvester. They're often mistaken.

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        • #5
          Originally posted by FRANK'S View Post
          wow nice did he test the thrust on it? this must put out monster thrust numbers.
          Probably more 20 gal / h for the same thrust as Mac 72 hp. It is from 300 mph that the efficiency of a jet engine becomes good, not to 50 mph
          Not a good idea, in my opinion
          Last edited by Jean Claude; 05-17-2018, 12:41 AM.

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          • #6
            Does anyone know which engine he is using?
            Mike Gaspard
            Forum Administrator
            Kaplan, Louisiana
            Bensen B8MG, NX36MG

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            • #7
              Letís see:
              1 hp = 550 ft-lb/second.
              At 50 mph, 250 lb of thrust = 33 hp
              At 500 mph, 250 lb of thrust = 330 hp.
              Thatís the reason we donít have jet propelled tug boats and railway locomotives Gas turbines driving electrical generators is a different story.

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              • #8
                Originally posted by gyromike View Post
                Does anyone know which engine he is using?
                Mike it looks like a PBS TJ100 Turbojet Engine

                Life,The leading cause of Death

                Live and Learn--OR--Die and be an example

                321.252.7705

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                • #9
                  Originally posted by C. Beaty View Post
                  Letís see:
                  1 hp = 550 ft-lb/second.
                  At 50 mph, 250 lb of thrust = 33 hp
                  At 500 mph, 250 lb of thrust = 330 hp.
                  Thatís the reason we donít have jet propelled tug boats and railway locomotives Gas turbines driving electrical generators is a different story.
                  I'm wondering if response time will be an issue in flight, gyros fly by controlling thrust.
                  Will the jet be able to recover from a behind the power curve situation fast enough at low altitudes?
                  I think a turboprop with feathering blades would be a better choice.
                  Life,The leading cause of Death

                  Live and Learn--OR--Die and be an example

                  321.252.7705

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                  • #10
                    During a "economical" cruise, at L/D=3 and to total weight in flight of 230 kg, the thrust should be 760 N
                    According PBS, the turbojet Engine TJ100 burns 0.116 kg/N/h. It will burn so 88 kg per hour !


                    http://www.pbsvb.com/customer-indust...urbojet-engine

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                    • #11
                      No one said this was a practical or economical alternative to a prop engine...just a proof of concept and learning project.
                      Thrust numbers by PBS are very conservative...so far....pretty darn close to my Subaru on my 2 place. Throttle response is very good plus Iíve never had to peg the throttle in all my years of gyro flying. Only testing will tell but program is progressing better than anticipated. Oh...and fuel burn will be around 40-45 gallons/hr. Canít put a price on fun!! :)
                      Last edited by ultracruiser41; 05-17-2018, 04:25 PM.
                      BarryK

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                      • #12
                        Originally posted by ultracruiser41 View Post
                        Oh...and fuel burn will be around 40-45 gallons/hr. Canít put a price in fun!! :)
                        So 5 gallons will last about 7 minutes? But it will be 7 minutes of fun.

                        Bobby Munroe
                        Private Pilot (SEL)
                        PRA Chapter 62 #42748
                        EAA #1160523

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                        • #13
                          Y'all
                          Try not to get a brain cramp trying to over think the Jet Gyro!!

                          Rodney

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                          • #14
                            I agree Rodney......as we say in manufacturing......"sometimes ya have to shoot the engineers and run product!" ! :)
                            Fuel capacity on the gyro is 43 gallons! Will fly like a dog for 20 minutes....but the second 20 minutes should be awesome!!
                            BarryK

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                            • #15
                              Took me awhile to find the pictures but it did start life as a tractor (and not a grain harvester, Brian!).

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