Rob's Hangar

And another flybarless from Walkera – should be available in about a month.

Here is a Video

here is a new ZULU Trainer Canopy. Carbon-Style, white bottom. 2.9 g.

Saw this vid some weeks ago – still deserves a post. This small autonomous Unmanned Aerial Vehicle (UAV) from GRASP Lab, University of Pennsylvania has some amazing capabilities. Flips, flight through windows, and quadrotor perching are shown. Awesome.

Here is a tool I made to hold the stator when re-winding micro-sized brushless outrunner motors like the HP series (HP08, HP08-2, HP06, HP07). Materials used is a M5 threaded rod, M5 nut, and two pieces of a brass tube (5mmx6mm). The handle is from an old paint roll.

I rewound the HP08-2 with a winding scheme originally posted by Terry74 (thanks Jay!). Its 2 strands of 30 AWG (0.255mm) magnet wire, 5 turns, delta. Lots of detailed information on winding schemes and diy brushless motors can be found at the great website powercroco.de. Very good magnet wire can be found at Brocotts UK (search eBay).

For the record: Original winding of my HP08-2 bought from WOW Hobbies was 3 strands of appr. 0.2mm, 5 turns delta.

The ZULU trainer is an extremely light-weigth and durable canopy for the Walkera 4G6 / 4#6. At only 2.4g (0.85oz) it offers a significant weight saving and performance increase compared to the stock canopy.

here is the silver version almost finished (sorry, I should have dusted off the canopy for the photo , anyway, you get the details). weight as in pic is 4.7g, or about 0.7g more than the stock canopy.

the kit:

A new canopy design for the Walkera 4G6 / 4#6. With inspiration from the Henseleit MP and Three Dee RIGID canopy, I made this canopy longer and tightly closed around the swashplate.

Its easy to put on and uses the original rubber grommets and canopy mount.

And the best part: at 3.5gm it’s even lighter than the original canopy. Here are two pics one of the first prototypes. Still working on the colors and decal sets.

Here is my version of a 16″ (40cm) flying wing design based on a plan by Bob Skinner on RCGroups. Here it is flying at windspeeds of about 50Kmh (30mph).

Specs:
Wingspan: 16″ (40cm)
AUW: 103g (3.6oz)
Lipo: 850mAh 20C Zippy 1S
RX: Gyroless Walkera 2609 2.3g
Motor: HP08S outrunner 11,000(?) KV
ESC: Walkera 10A
Prop: HK 3×2″
Max. static RPM: ~28000
Max. static thrust: ~120g (4.2oz)
Pitchspeed: 85Kmh (53mph)
Servos: Walkera 3.7g WK-02-1
TX: Walkera 2801Pro, delta wing setup

With the winglets it flies like on rails, i like it much better than without them. I see some potential to make the winglets even smaller while keeping enough stabilization.