|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|
Review by: Gareth HughesBirdy DS
Having completed the kit and taken it out on its test glide I'm really surprised at how well this little glider goes. I test flew it in 12mph winds which wasn't ideal but it's really manageable, has a surprisingly shallow glide angle and despite the dihedral was pretty much unaffected with side winds. I'm completely sold on it now and I'm looking forward to getting it onto the slopes! The build log's really useful but watch the siting of the elevator horn, I had to re-locate mine further outside of the "wedge" allowed for the rudder movement. I may even try a Spinnin' Birdy next!
Review by: GarethBirdy DS
I'm still building this kit so I'm some way from flying it but it's a cleverly constructed little glider and looks like it's going to be incredibly strong. I'll update with the maiden fright when I get there!
Review by: AndrewBirdy DS slope soaring in Stroud
Very pleased with my Birdy DS. The accuracy of the cut parts is superb. But this not a plane for the novice. For instance the push rods need to be cut and bent to length but they have no adjustment. You need to know how to manage this sort of tricky issue.
Once built the plane is a delight - floats and thermals with the best but also has a huge turn of speed. Robust construction. I lost power and the plane spiralled to the base of the hill. It had no right to survive that!
Review by: GeorgeExcellent laser cutting. Clever design.
An interesting wee model to put together. Some considerable thought has gone into the design and construction. Well executed.
Review 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).