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Fast Lad Performance . Ace Hobby . Esprit Model

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e-Hirobo SRB Quark - Lepton - XRB Coaxial > Need a little advise with XRB (please!!)
 
 
Deano440
Heliman
Location: London, England

Hi people!,

Hope one of you knowledgeable lot can help me out with my hopefully temporarily disabled Lama!!

I don't know if it is just me having bad luck but this is my 2nd!!, I went and brought the 1st from my local model shop last week, rushed it home only to find that it had no forward/ backward cyclic at all!! I took it back to the model shop who confirmed the problem and said it wasn't repairable and they would just supply me with a replacement, which I've had to wait a week for as they were all out of stock!!

Now my new Lama arrives in stock I whisk it off home and for the first 5 mins it seems to fly fine but then (as I have heard from other posts) it wasn't long before the heli was back down again, it just seemed to self-destruct in flight!! But luckily I manage to land with no probs!!, the lower blades had had the tips ripped off some how (it looked as though they had hit the boom) so I replace the blades and tried another flight!!

Again 5 maybe 10 mins it does the same thing but this time it came down with an almighty crash and there were bits every where!!

This time I replace all 4 blades and the stabilizer bar (which flow off!!) I go to fly again and now there is a big problem with the rudder, it just wants to twist to the left, and there doesn't seem to be a happy place for the rudder trim as the rudder light will not go off, it goes straight from red to green and visa versa! There also seems to be a nasty grinding sound as you bring the rotor speed to a stop!!

I think that the stabilizer may be slightly bent (you can only notice it on a flat surface), the top blade needs tracking now and when the rotor is spinning the disk seems to sway from side to side!

I have read though the manual but don't really know which fault I should try and rectify 1st, should I try and track the blades or should I try and ascertain if the main mast is damaged before bothering to do that? and how will I know if the mast is not as it should be?

Could this problem have been avoided if the blades were properly tracked to start with?, I didn't bother to adjust as they seemed virtually ok and it seemed to fly fine and I have a bit of a phobia towards setting up heli's and have had previous heli's setup by professionals and I have just done the flying!!

If anyone has any advise at all it would be much appreciated!!, sorry to go on for so long!!

Thanks!!!
02-02-2004 Over year old.
 
 
marc8090
Key Veteran
Location: Long Island, N.Y.

The blades can hit each other if you remove too much weight from the stabilizer bar and are aggresive with the controls. From what I've seen when it starts to spin and full rudder stick or trim won't stop it, it's usually a bad motor. One is turning slower than the other. The grinding noise is most likely a stripped pinion gear. They seem to break teeth before the larger main gear.
02-03-2004 Over year old.
 
 
Deano440
Heliman
Location: London, England

Thanks for the reply Marc!!

Does that mean that the motor would have been damaged in the crash?

I haven't removed any wieght from the stabilizer bar it is as it came out the box.

This might seem like a silly question but is the stabilzer bar supposed to be completely straight?, as mine seems to be very slightly curved?

Do you think I have a case to take it back as this was its first flight and the heli flow it self apart??

Thanks!!
02-03-2004 Over year old.
 
 
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Thunder Power RC . Real Raptors . Mikado Modellhubschrauber

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e-Hirobo SRB Quark - Lepton - XRB Coaxial > Need a little advise with XRB (please!!)
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