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Sonja's Video Links

To access the videos, paste the link in a Youtube page or take a look at my Youtube Playlists.

Note: If any of the links shown here do not work, it is a Youtube software problem. All videos come up if you search for my name on Youtube.

Flight Test


Flight Test 1 Preparation

Flight Test 2 Test Area


Small Airplane Design Tutorials


Link Tutorial 1   Introduction, wing, stall speed

Link Tutorial 2    Preliminary design spreadsheet, performance

Link Tutorial 3    Fuselage, cg, W&B

Link Tutorial 4   Fuselage mass distribution, cg calculation

Link Tutorial 5  Horizontal tail

Link Tutorial 6   Vertical tail

Link Tutorial 7   Control surfaces elevator, rudder

Link Tutorial 8    Control surfaces aileron

Link Tutorial 9    Flaps

Link Tutorial 10  Wing planform, lift distribution, induced drag

Link Tutorial 11  Airfoil selection

Link Tutorial 12    Aerodynamic center, MAC, longitudinal stability

Link Tutorial 13    Engine and propeller installation

Link Tutorial 14    Flutter, description

Link Tutorial 15  Flutter, Ground vibration test

Link Tutorial 16   Loads

Link Tutorial 17  Structure

Link Tutorial 18  Drag reduction 1

Link Tutorial 19  Drag reduction 2

Link Tutorial 20  Airplane Design Resources

Link Tutorial 21  Structural fatigue

Link Tutorial 22  Flight control system bearings

Pulsar Modifications

Interview with Sonja Englert at a Pulsar Fly-In

Building Caro 1

ESA (Experimental Soaring Association) posted their recording of my presentation about building my motorglider here:

California Flying

Documentary, 2017, duration 8:30 minutes

Scenes from various trips in Caro 1



Caro 1 Flight to Oshkosh

Documentary, 2016, duration 5:50 minutes



Caro 1 First Flight

Documentary, 2015, duration 5:20 minutes



Sonjas Oshkosh 2015

Documentary, 2015, duration 28 minutes

Short version duration 14:20 minutes


Motorglider Flying

Documentary, 2014, duration 6:11 minutes


AQUILA Turbo First Flight

Documentary, duration 3:46 min


Formation Flight Training

Documentary, 2013, duration 11:24 min


Visions of Central Oregon

Documentary, 2013, duration 8 min


Cascade Flight

2012 Documentary, Duration: 8 minutes

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