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.
ZULU trainer
ZULU trainer
ZULU trainer
ZULU trainer
ZULU trainer
the zulu canopy
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.
the zulu canopy
the zulu canopy
zulu hornet
zulu flip-flop effect
opening for swash
Micro Linear Servo 1.5g
Finally there is an alternative to the Spektrum linear servos. Here comes HK with a 1.5g micro servo for only $5.99, which will be available as a right- and a left-servo version. It was announced only 2 weeks ago on RCGroups.com by manufacturer Assan. Right now there is only a 2-servo V-Tail version ($22) available at HK but the single servos are expected soon.
Unlike with the Spektrum model, the electronics of these new servos are on a seperate PCB. So it might be possible to make the servo even lighter by removing parts of the PCB on which the actual servomotor and pot are mounted. Depending on the ohm-rating of the pot it might also be possible to use a different (maybe lighter) controlling board.
New HK micro linear servo
Specs:
Type: Digital
Application: Ultra-Micro Aircraft
Torque: 29.5g of Force
Speed: 0.11 sec @3.7V
Voltage: 3.7V~4.2V
Stroke: 7.4mm
Dimensions: 20.8 x 12 x 7mm
Connector type: JR
Two new vids of the Walkera 4G6 prototype are up on youtube since yesterday. It is said the heli will be available at the beginning of september.
The first one with some basic flying, backward circles and figure eights – the tail looks rock solid. Very nice.
nice!
The second one – inverted flying, flips and rolls.
The new E-Flite Blade mSR is a fixed-pitch, palm-size RC helicopter. Looks like E-Flite’s answer to the Walkera’s 4#3B
Specs
Main Rotor Diameter 302 mm
Tail Rotor Diameter 73 mm
Length 360 mm i guess
Main Motor WK-WS-12-003
ESC WK-WST-10AL
TX WK-2801 PRO
Pics:
The Norwegian company Prox Dynamics just released videos of their PD-100 Black Hornet, a 15 gramm fixed-pitch helicopter with a direct drive brushless main motor. According to Prox Dynamics, the PD-100 is the first Unmaned Aircraft System (UAS) to be developed.
The copter comes in a box of three (always better to have more than one heli!).
Just too bad that this machine will probably never be available for the regular guy.
RTF box - millitary style.
more
The box.
The PD-100 has a rotorspan of 100mm. With a weight of 15g it is about as lightweight as a PicooZ.
• Rotor Span 100 mm, Mass 15 gr including Payload
• Maximum Speed 10 m/s, Endurance up to 30 minutes
• Digital Data Link, Range 1000 m Line-of-Sight
• GPS Navigation or Visual Navigation through Video
• Autopilot with Autonomous and Directed Modes
• Hover & Stare, Automatic Search Patterns, Preplanned Route
Videos:
Interestingly the PD-100 tailrotor looks very similar to the PicooZ tailrotor.
Direct drive brushless mainmotor - and a tail rotor that looks very much like the PicooZ's?
The PD-100 has a direct-drive brushless main motor which can be seen in the picture above. Eliminating the gear/pinion components from the design makes it very low in noise i suppose. Also the weight of the BL main motor is placed directly in the desired center of gravity.
Really a palm-size design. The rotor looks flybar-less. Do I see a PicooZ tail?
Looking at the picture above there seems to be no mechanical stabilizing mechanism like a flybar in the main rotor design. So this flybar-less setups seems to be stabilized by electronics. Also in the picture the swashplate can be seen – it has relatively large diameter: This makes controll inputs extremly precise (high resolution) – just what is needed for a flybar-less design at this scale.
One of the servos can be seen in the back of the heli, near the tailboom – looking like linear servos used on the Spektrum AR6400 or the 5-1 board of Walkera 4#3Q and Lama2.
With camera. Palm-Size FPV - PD-100 C Prototype
Also interesting are the other, earlier designs of Prox Dynamics’ Peter Murren which can be seen on his website http://www.proxflyer.com/.
Videos from 2008:
and
r
Recent Comments