JS3: Explaining features and the operation of the JET

Uys Jonker (CEO Jonker Sailplanes) explaining some nice features and the operation of the JET sustainer on the JS3.

[@Mike-Bell]

Flippin lekka. You guys rock!!! Make me feel saam proudly South African. Show those Germans some Potch carrots🤙🏻🐝

[@michaelmuldoonmikesm08]

I must have one!

[@johandewaal]

Awesome plane. You mentioned aircraft for paraplegic pilots. Have you built a paraplegic version? And if so how did you incorporate rudder control? Last question, can you take off with the jet or does it just boost / sustain flight? Very keem paraplegic this end drewling all over his keyboard ;)

[@Winniethepopo]

It is "just" a sustainer , because the engine has very few power on ground . A jet needs the increesed airpressure caused by the flying speed to provide the power to accelarate or to climb . I dont know it but i guess with a car tow or a aircraft tow to 10m and 120km/h you could start on your own . Without this I guess you will need a asphalt runway with a length of 1000m to get into the air... 😬

[@johandewaal]

@@Winniethepopo thanks for the feedback!

[@welshpete12]

@@Winniethepopo There is a video of it taking off on its own on grass . It needs a long run to get airspeed . But once it does , it climes fast

[@Winniethepopo]

@@welshpete12 can you send the link ? Because i just know a video where it is aerotowed with the jet extended and running

[@justme.9711]

Instead of the super hot turbine , why not design a small hydrogen peroxide rocket, just steam, an even smaller drag and no risk of a fire etc. A nozzle to produce the equivalent of 30 hp as a sustainer would be as narrow as a salt or pepper shaker.

[@superskullmaster]

That panel seems impossible to reach from the fully seated position.

[@cloudstreets1396]

Why do you need to reach it?

[@thoyo]

Can the JS3 self launch using only the jet?

[@kjell4958]

no its a sustainer engine

[@thoyo]

@@kjell4958 thx

[@welshpete12]

Yes it does , there is a video of it on KZbin doing so .

[@SkywaySoaring]

Love them, unfortunately out of my economic reach...