Lama V3

Tiny and funny. I learn some orientation (Backwards, funnel..) with this.

Latest modified with a 6m long copper enamel wire to provide unlimited power from a PSU. Much cooler as reduced payload.

F16 EDF

Bought from Shinjuku, Tokyo 2006.

No yet fly this as I intended to modified it to 3 channel.

MP5

My first MP5 electric airsoft gun.

T34 Mentor

The first plane that I really can fly. Gear box with motor 300H. I flied this with my kids , and a trainer cord.
The plane is pretty stable depite its low wing config.

Unable to get spare parts and was converted to brushless motor and my first DIY motor mount.
Retired when uncontrollable roll depsite numerous repair.

Flying team June-2007

Too many raining days. Do happy with the performance of A123 Li-Fe cells.

$3 鄧槳器

材料:

1) Neodym magnet $2

2) 3mm, 4mm screw, spacer and nut

screw must cut to cone on both side, can use a dremel.

The magnet can hold the prop and screw in air and rotate freely.

Very accurate! I can use it to balance all my 325mm carbon blade , 515mm carbon blades, 58mm tail balde

$1 Voltage regulator for digital Servo

Align stock 5.1V regulator to drop 0.7V out of the 6V BEC is
M4N RL201 2A diode

You can buy a 3A diode 1N5401, which is slightly larger. 1N4001 is 1A version and smaller. It is good enough for a single digital servo like Futaba 9254.

I cannot find 2A version in my proximity.

V22 Osprey VTOL

I am inspired by the flying character of this bird.
First flight





Second flight after adjustment gyro and exponential

After shortening the rotor distance.

E-sky FP2

My first helicopter. Not even know the mechanics of a helicopter. Modified with GY401. Then the tail motor piss me off. Cannot track the fixed pitch wooden blade. Finally, replace with Trex450XL.

Still using the Tx and the flight simulator.

Quadratwirl 旋翼飛機

My first autogyro旋翼飛機
自旋翼飛機既主旋槳係唔使摩打, 個主旋槳係有前速/ 下降時自動旋轉產生升力
所以只要前方引動便可以超短矩起降
當中力學極之深奧

Build time : 4 hours


Specification : Weight 250g + 130g 1300mAh Lipo
Towerpro 9g servo x3, Elevon mixing, Rudder
Towerpro 2409, 1500kv, 9043 prop. 25A ESC
Dihedral angle will stabalize the roll.
Gust from the back will negate the lift as it reduce the rotor movement.
Hand lauch extremely easy.

Retired due to too gusty condition in my field.

Angle fish

SU 27 Flanker

Left in office for long time after purchase from Albert. Redo the elevator with aluminium rod and reduce the free play. Control is much better though the plane will stall on acute banking. Due to its thicker airfoil and larger air drag.
Power: 2409 Towerpro + APC 8 x 6e

Trex 450

My first helicopter. Upgraded from plastic version with carbon frame.

Then metal head .....grip.....mixer arm.....swashplate....

DIY the V2 like thrust bearing main blade grip. The pitch response is more linear and accurate. Later took apart due to the thrust bearing will jam dead the cyclic servo. Somehow unknown mechanism even the grip is silky smooth. It happens 2 times and the second time is a brand new 65MG. So unlikely a coincidence.

DIY longer copper mixer washout. The slop is gone.

The tail is upgraded to a NIX tail gear box, with a smaller load (balanced metal grip) on rudder servo and larger travel. NIX tail gear box must use carbon blade to get solid tail lock.

Now with 4S and the cyclic response is magic at HS 3000rpm.

Looking for hollow 5mm shaft.

Current setting:

AR6100

HS65MG ....6V

401, 9650...6V

4S 1500mA

450TH 3000kv@11T, HS 3000

DIY modified paddle 3.2g

Super Hardened Head dampener DIY from PU

NIX tail box.

CC Pheonix 35

BEC 3-5A, cheap $8 ,Without the BEC,cc 35 on board BEC will melt the heat shrink even @3s

Eagletree says 300W

Cyclic fast like hell !

Finally, it was powered with 3600kv @4s/11T

BlackHawk

昂平 360