Song 120 Ultraleicht Flugzeug

[shedofdread]

Came across this earlier today and [to my eyes] it's really rather an elegant thing. Hope it's of some interest (maybe makes a change from all that LRS-B stuff??? )

http://www.flying-expert.com/flying-expert_welcome/song_120.html

As the title suggests, it's an ultra light motor-glider.

weight 120 Kg
Wingspan 11,2 m
Total length 5,6 m
MTOW 235 Kg
Max. height 1,9m
transport width of 2m
rate of descent 0,9-1ms
gliding performance open propeller 21
gliding performance folded propeller 23-24

 

[shedofdread]

And a small video...

https://www.youtube.com/watch?v=eMsqWku3gN4

 

[mz]

Very nice synergistic design. The landing gear can be really short and not much drag. Looked a bit bumpy though, I guess no flex and small tires. The plane is really light.

Electric motors are not so heavy and don't need so much cooling air so rear high engine position is good for them. You can still put the batteries towards the bottom and the nose.

Traditionally twin booms have been more complex and draggy than single. Maybe the booms are so small here that they can use some factory-made carbon fibre tubes? I wonder how good the control feel is with flexible rods...

Found a draft pdf manual on the page, attaching it.

 

[VTOLicious]

Neat design, thx for posting.

...120kg empty weight. That is definitely an achievement.

Edit: I found a test report (Aerokurier 2014/8): http://flying-expert.com/flying-expert_welcome/ewExternalFiles/08_14%20ae_UL_LSA_Song.pdf

BR Michael