Here is a brood to the bird family. Related to the wingspan, it is a crossbreed of the
"Red Duck" https://cults3d.com/en/game/red-duck-first-take-off-of-a-fully-printed-flying-wing
"Red Swan" https://cults3d.com/en/game/red-swan-the-biggest-fully-printed-flying-wing
Still small, but speedy and pretty manoeuvrable - a big fun for a real pilot.
Anyhow, Marcel, member of the ACNE http://www.aero-club-nieder-eschbach.de/
who piloted the maiden flight, had a lot of fun and this is his first impression:
"The small model is already very good, but some model flying experience is needed. For a wing type of this small size it flies even damned good. It’s not a plane for circling through thermics, of course it’s to small for that. The performance is shown when one flies it speedingly".
Uwe Heuer - experienced flying wing designer and Horton specialist - says about this square form of a flying wing, which he loves to call "panel plane":
"They do have a low damping and flight stability around the pitch axis (elevator), therefore you can fly snags in curves. This is why I love these “panel-planes”, these are also good-tempered against tilting to one side. But on the other side you pay that with the high sensitivity regarding wrong trimming of the CG and the elevator. During stall the wings stay level but for recovery they need a long dive to speed up again".
This small plane is quickly printed.The biggest parts are 220mm high to print, but it is not a problem to slice them in half.
Here you can see how it flies: https://youtu.be/d8cFB1equik
wing span: 794 mm
wing chord: 160 mm
aerodynamic center mm
aerodynamic center % stability: mm
wing profil: Clark YS
wing overall weight: 270 g
wing area: 12.7 dm²
fuselage overall weight 270 g
wing loading: 42.5 g/dm²
longitudinal stability (Thies) STFs:
motor: Turnigy 2632 Brushless Motor 1000kv
propeller: Aeronaut CAM Aeronaut Carbon Classic 9 x 6.5" / 23 x 16.5 mm
static thrust: 500 g (3S Lipo)
battery: Turnigy nano-tech 950mah 3S 25~50C Lipo Pack
ESC: HobbyKing YEP 30A (2~4S) SBEC Brushless Speed Controller
receiver: OrangeRx R615X DSM2/DSMX Compatible 6Ch 2.4GHz Receiver w/CPPM
servos: Hitec HS-55