FD3/64 Manual kérostart

FD3 / 64
Mark Drake 631 combustion chamber.
Homemade integrated Keroburner
No fadec
Balancing work must be done before pushing up to 75,000 rpm.
Operation in video between 20,000 and 35,000 rpm.

[@Mister_G]

Just seen this (and the later videos) - great work 👍

[@reedy93]

looks very near ,check for black streaks at front of chamber don't think flame is locked in at front .check joggle ring has a even gap of at least 0.5 mm .
how are you lubing the bearings excess lube can show up as a regular pop in exhaust as it vaporizes and burns.
Balancing is the hardest thing to get right.
Good luck with it , wear safety glasses and ear plugs.

[@reedy93]

Need to see a strip down and close up of engine parts, shape of turbine blades, burn pattern in camber.
can tell you are have turbine strikes sparks coming off is the bearing tube supported at the back bearing area this can help keeping the running clearance small 0.10 mm .the turbine wheel is not as designed have you increased the thickness at the centre ,as Kurt say's you cannot have any hole in turbine wheel unless you increase the centre area thickness.
Is the turbine wheel to drawing .
Do the turbine blades start at correct diameter 41.0mm and 63.75m outside diameter ?

[@nicolasm7012]

Do you have an email or facebook address? So that I can send you pictures of the engine parts.
Yes, I thickened the center of the turbine to have a normal nut like on commercial turbines.
I just remeasured my turbine wheel, I have 41mm but only 63.40mm, and my ring is 63.70mm.

[@cytron8787]

Nice job! Love it.

[@edhornet41]

Very good....