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Tara and the lot The entire lot is in this image. You can see one of the green markers on the left, which also indicates where the road will be. The other marker is just off to the right.
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The lot #2 Taken from on top of a mound of earth, just next to the previous image. The lot is between the green markers.
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The lot See the green markers? They mark either side of the lot at the street. The picture is taken from what I think is the buffer-zone boundary.
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Tara and Trees
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The tree line
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Tara
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The back yard
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Outdoors [4/4]
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Outdoors [3/4]
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Outdoors [2/4]
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Outdoors [1/4]
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I fired it up... So, I took it outside, just to fire up the engine. Nobody else around to take pictures, so this is after the event. They definately make good lawn mowers - notice all the grass and grass stains. I'm so far away from flying this thing (still practising on the simulator) but I thought it would be good to give the engine and mechanics some exercise before it does fly. These things are not quiet!
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The radio I decided to start small. A 6-channel JR transmitter. It came with the servos and a 7-channel receiver.
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Wires/servos Much cabling. Notice how I had to trim some of the servo "horns" - they interfered with the ball-link attachments.
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Busy busy There's a lot going on with this machine.
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The electronics arrived All the servos are on, the receiver is mounted and hooked up.
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Size comparison
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Size comparison The universal measuring device: A Coke can.
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Rear view
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The body/canopy This will be it's ultimate shape.
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So far...
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Rotor hub It's really busy up here - I can't imagine this thing spinning as fast as it will need to.
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The exhaust It's shiny now. I'm sure that will change. The silicone pipe runninf from it is a fuel tank pressurisation aid. There's no fuel pump - a certain amount of exhaust gas is used to push the fuel into the carb of the engine. Quite neat, really.
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It's looking a bit big Note we have an exhaust (muffler) now also.
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Progress! With the main rotor blades on, it's starting to look like a helicopter now.
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Digital servo The Gyro came with this servo. Because the tail rotor pitch is being computer controlled, and you want it to react fast, you have to use a fast servo. Better yet, you use a digital servo, which mostly means the servo PWM's the motor inside much much faster. This is a reasonably speedy digital servo. When it's going, it whines a bit, but I am pretty sure that's normal.
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Gyro This is described by many as the "most cost effective" stabilisation gyro on the market at present. It's job: keep the machine pointing in the direction you want it to. In the old days, you would program a "revolution mix" into your radio which altered the tail rotor blade pitch according to what you were doing with the throttle/collective, the idea being that you could match the rotational energy being put out by the main rotors to make the tail rotor counteract it, and keep the machine steady. Technology these days simply measures the rotation and does what it needs to counteract it. Funky. This is what makes the difference between whirly-top-with-dangerous-bits and simply "dangerous".
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Clutch The silver drum in the centre of the picture is the clutch bell. Inside this is a clutch disc, which runs directly from the engine below it. It's designed to be fully diengaged below about 7000rpm and fully engaged above 10000rpm. The rotor blades operate at a fraction of this speed, not normalyl going faster than about 1700 rpm.
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Beastie so far
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Main drive wheel The belt goes back to the tail rotor. The grey spindle meshes with a drive wheel on the engine drive shaft. There is a shaft going up through these two wheels directly to the rotor hub.
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Tail rotor The orange material you can see through the hole is the belt. The blades twist together, in opposite directions. This is how you point the helicopter.
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Coming together nicely now Tail piece is in, various tail-plane bits and bobs. The tail rotor blades are on the wrong way round here (and remained so for a while) until I realised I had the belt on the wrong way. I noticied this long before firing up the engine, thankfully.
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Tail rotor assembly The red coloured pulley is a two-piece item, a flange fits on one end, and it can go two ways round. The correct way si with the shorter end into the pulley, longer end outwards. Otherwise, as I discovered, there is about 2 to 3mm play in the tail rotor shaft. Not good.
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Tail rotor assembly This was a fiddly piece to put together.
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Flybar again
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Rotor head and flybar The fly bar, I think, ,ostly balances the main blades. They are on a single bar whose pitch alters with the cyclic, but not the collective (I think, lots of "I think"'s here!). The bar is supposed to be near-perfectly balanced otherwise it causes really nasty vibrations in the rest of the machine. Rememeber, this thing is a huge spinning top, really.
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Look at the mess!
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Rotor head bearings At this point, I only assembled one end of this piece. The bearing set in the bag fit onto the shaft with a collection of washers, spacers, bolts, loctite and so on. It's all a bit busy. Particularly sicne I forgot to put in a supporting piece rigth in the centre to had to disassemble the thing.
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Assembling the rotor head These bits will eventually sit atop the swash plate.
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The engine The slot-shaped hole you can see is where the exhaust (muffler) pipe will attach, when it arrives.
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Engine in the frame, other side
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Engine in the frame, closeup
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Engine in the frame
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Engine, other side
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Engine, closeup
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The engine OS 32 helicopter engine. Here it is with the Raptor cooling fan attached, basically a centrifugal fan.
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The swash plate This little device is freaky. In a nutshell, the pitch of the blades varies through their rotation, according to the motions of the aileron/elevator servos (called cyclic on a helicopter) and the collective pitch. It's all a bit mad and I onyl slightly understand it so far.
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Side view
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Getting started When I remembered I wanted to take pictures of the construction, this is far as I was already.
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Defects Picture taken of Appt. in Arlington prior to moving in
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Tara