|Birdy DS Specifications|
|Wing span||1.00 m||39 in|
|Wing area||14.4 dm2||223 sq in|
|Length||81 cm||31.9 in|
|Flying weight from||350 g||12.3 oz|
|Wing loading||24.3 g/dm||8.0 oz/sq ft|
|Wing airfoil||HN 871|
|Centre of Gravity||TBA mm from wing leading edge|
|Controls||Rudder, elevator, ailerons|
|Birdy DS Typical Weights|
|Total structure||290.0 g||10.2 oz|
|Receiver||4.5 g||0.2 oz|
|Rudder servo||4.5 g||0.2 oz|
|Elevator servo||4.5 g||0.2 oz|
|Aileron servos (2)||9.0 g||0.3 oz|
|Battery||20.0 g||0.7 oz|
|Noseweight||17.5 g||0.6 oz|
|Flying weight||350.0 g||12.3 oz|
|Recommended R/C-nano gear only|
|Elevator & rudder servos||Ripmax SD100, Blue Bird BMS-101AMG, Blue Bird BMS-101DMG, Blue Bird BMS-101HV, Blue Bird BMS-A10S, KST X08|
|Aileron servos (2)||Ripmax SD100, Blue Bird BMS-101AMG, Blue Bird BMS-101DMG, Blue Bird BMS-101HV, Blue Bird BMS-A10S, KST X08|
|Receiver||Spektrum AR6260*, AR6100e, AR400, Futaba R6004FF*, Orange DSM2 compatible, Jeti Duplex R4 & R5, Multiplex Mlink RX-6-DR Light*, FrSky D4R II|
|Battery||HyperLipo 2S 300 mAh, 150 mAh 4.8V, 1S 300 - 500mAh LiPo|
Comment by: John
Service / customer service excellent – delivery fast – would recommend Hyperflight.
I'm very new to RC anything & from what I've learnt so far I can tell I've hardly touched the surface so I think my comments are probably best kept brief in relation to the build so far.
On receipt I would advise putting selotape on the strips of leading edge shapers & 4 rows of webbing as they need to kept in order, are very delicate & easily come loose.
The instructions could be updated, not least because of a comment relating to Andreas Decker who is no longer with us.
Within is included a web link to a German rc forum, I used this also for the colour photo's & found it a great help.
The central rib of the jig onto which the convex wings are built is too delicate, but this shouldn't put you off – I managed it.
Take good note of the advisory comments.
The plywood that has hexagonal wholes to hold the wing nuts during build, failed & soon wore into circles, I would advise gluing nuts in (without affecting threads, obviously).