Saturday, January 3, 2009

What I did this holi...updated

Short one month holi has come to an end. A fruitful one because I have done more than a few things, some of which, I have been thinking about for ages. Basically, I spent a good 1.5weeks of full day sitting there fiddling with my helis...first was the X50 head mod, then the engine bearing change and then trying to fix the leaky tank and attaching a header tank onto the 700N.

1. Fuel pump
Changed the fuel pump. Figured that it might be cheaper to buy a new pump than to continue wasting fuel with the leaking pump. The 700N tank takes very long to pump and results in a lot of leakage/wastage from my old pump.

From Whats been done this holi...

From Whats been done this holi...


2. Flight power evo-rx 1345 and 8amp regulator.
On great discount. Bought to keep as spare.

From Whats been done this holi...

From Whats been done this holi...

From Whats been done this holi...


3. Rotor Tech 105mm tail blades
Reviews of these vs the stock 700N CF tail blades coming soon...

From Whats been done this holi...

From Whats been done this holi...
95mm/30mm vs 105mm/30mm


4. Replaced the R50 governor sensor.
My heli was screaming everytime the head unloads, found this to be the culpruit.

From Whats been done this holi...


5. RJX head on the raptor

Been wanting to do this for years, getting a "newer" head for the raptor. This head is AMAZING in flight. The metal is definately soft though, so I hope I don't crash. Read HERE for more info.


6. TT50 engine with hatori #522

While the OS hyper was out for bearing change, I changed the bearings on the TT50 too. Its amazing what propellers can do to bearings. In the name of experiment, I got the TT50 with the hatori in the raptor and did 2 flights. It had the power of a OS hyper with the stock raptor muffler, smoked like a hyper and also, drank like a hyper. Full to empty tank in less than 9mins. Idle was not very good also. Nonetheless, it proves that a good muffler DOES make a weak engine a lot stronger.


7. Some maintenance on 700N
Fuel tank started leaking when I moved the rubber plug to the inner hole. My solution was 30mins epoxy. Works well. Got a spare tank and I am confident the new tank will probably not leak because its quite different my the one from my kit.

From Whats been done this holi...

Found some VERY IMPORTANT SCREWS coming off ON THE 700N...photos to come really soon.

Update

The screws that came loose...the one above the jesus bolt will cause the whole rotor head to wobble on the main shaft when its loose. The one holding the tail rotor hub will create an excessive amount of play(in addition to the original alarming amount of play) at the tail rotor when I tried to rotate it.
From Whats been done this holi...
From Whats been done this holi...

My header tank...
From Whats been done this holi...
From Whats been done this holi...


In addition, I also found the plastic mounting tabs on the tail boom support rod of the raptor to be really loose on both sides. Tightened them once and all is well again.

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