I went too far this time. Decided to try to see how long I could fly if I just cruised around. 16 minutes with capacity to spare:

EL-39 Albatros EDF Cruise Endurance Test - Warning! Extremely Boring Video (16 min 49 sec)

My 3D printed EDF probably has decent efficiency. Here's a ten minute flight:

Extreme duration flight with my big 3D printed EL-39 jet - 10 minutes (20 min 24 sec)

A compilation of many of last year's flight:

EL-39 Compilation - Low Passes And Landings Of 2019 (7 min 32 sec)

A short video promoting my club:

Senja Modellflyklubb (6 min 30 sec)

Here's a list of my big 3D printable jet build threads:

EL-39:
https://www.rcgroups.com/forums/show...6-5-scale-L-39

Mir 25 Boxfat:
https://www.rcgroups.com/forums/show...red-sports-jet

He-162:
https://www.rcgroups.com/forums/show...for-120-mm-EDF


My threads for my smaller 3D printable airplane designs:

Melusine motor/EDF/FPV/bird glider:
https://www.rcgroups.com/forums/show...sine-twin-boom

Nucking Futs Pylon Racer:
https://www.rcgroups.com/forums/show...r-Nucking-Futs

Itty bitty C-130 Hercules:
https://www.rcgroups.com/forums/show...bitty-Hercules

1:32 scale C-130 Hercules:
https://www.rcgroups.com/forums/show...29-cm-wingspan

Twerk fun flyer:
https://www.rcgroups.com/forums/show...Twin-Fun-plane

Pilot baby - Vintage design:
https://www.rcgroups.com/forums/show...l-reproduction


My 3D printable car design threads:

MK Ultra - 4WD high end buggy:
https://www.rcgroups.com/forums/show...10-scale-buggy

Ursa - 1:12 Monster truck:
https://www.rcgroups.com/forums/show...-monster-truck

Lynx - Experimental buggy:
https://www.rcgroups.com/forums/show...-or-two-motors