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My Big Lama motors change required.


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platinum
Extreme 3D
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Joined: 31 May 2011
Posts: 272
Location: Bangkok Thailand

PostPosted: Thu Jun 16, 2011 1:38 pm
PostPost subject: My Big Lama motors change required.
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After I set my Tx according to Tombo production manual.
I test flew it feel good and make me more confidence about blades strike the only abnormal is more trim to the right.
But the second flight my bird loose power I have to land on the water (shallow rain water trapped along side of the road).
Only the battery submerged under the water.

I changed the battery and flew again still loose power and yaw to the left.
Testing by hold the bird by hand and increase the throtlle while push rudder stick to full left then right the result is
the speed of upper rotor much slower than the lower.
So it's time to change the motors.

I fell that ...[Co-axial - After flying normal and the gyro trim is OK
if the bird gradually need more and more ruder trim/ or loose power may caused by motor deterioration.]

platinum
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/Goal : relaxed flying with the least fixing. Very Happy






Last edited by platinum on Sat Jun 25, 2011 9:05 pm; edited 1 time in total
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pjdog
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Joined: 12 Jan 2010
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Location: Hudson, Florida, USA

PostPosted: Thu Jun 16, 2011 8:39 pm
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Get some ball bearing motors and that will not happen any more. The oil light bearings do fail very early.

Good motors weather they are brushless or brushed that have ball bearings will last allot longer and don't draw as much battery to fly. So you also longer flight times.

jack
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tombo242
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Joined: 04 Nov 2008
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Location: Santo Estêvão, East Algarve, Portugal. Now 82, but still feels 22.

PostPosted: Thu Jun 16, 2011 9:56 pm
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Here are the type of motors you need. The seller will combine postage.

Motor A Motor B

There are others advertised do not accept "superior quality bearings". If it does not say "Ball bearings" leave it alone.

Tom.
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pjdog
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Location: Hudson, Florida, USA

PostPosted: Thu Jun 16, 2011 10:10 pm
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Those are the motors. These will greatly inhance the performance of you helicopter. They will last longer and use less power to fly.

jack
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platinum
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Joined: 31 May 2011
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Location: Bangkok Thailand

PostPosted: Fri Jun 17, 2011 5:37 am
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Tom/jack ..Thanks so much for the info.
I'll do as you advise for my next stock.

platinum
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/Goal : relaxed flying with the least fixing. Very Happy
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carr52
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Joined: 08 Jan 2012
Posts: 259
Location: South Carolina

PostPosted: Sun Aug 12, 2012 5:00 am
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Not sure if this thread is still active but I just thought I'd add my 2 cents worth. I bought those two motors and so far I'm very happy with them. They were easy to change out with the old stock motors. They sound different too. Not that its a bad thing. I think they sound smoother. Right now I need to adjust them a tad bit. I think I installed them a little loose. I say they are worth the money.

Tom
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tombo242
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Location: Santo Estêvão, East Algarve, Portugal. Now 82, but still feels 22.

PostPosted: Sun Aug 12, 2012 7:16 pm
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Glad you're happy with them Tom. They will stand you in good stead.

Tom.
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carr52
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Joined: 08 Jan 2012
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Location: South Carolina

PostPosted: Sun Aug 12, 2012 10:24 pm
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I'm just glad you found them for me. Also my blue heat sinks fit too. Just had the first crash this morning with the Military Lama. It now has its first battle scars on the nose. I hit the house. Just going too fast to make the turn. Good news is it landed in the Gardinia bush. Nice soft landing.

Tom
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carr52
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Location: South Carolina

PostPosted: Mon Aug 13, 2012 12:22 am
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Check this out. Look at the blade grips and inner shaft. I think ths is a Big Lama clone. Sure looks like it. Even the size is really close. It has a 3-1 receiver but I couldn't find spare parts so this is a bust in my opinion. No spare parts, no sale.

Tom

http://www.xheli.com/60h-dy8909-jetranger370-rtf-24g.html
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carr52
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PostPosted: Mon Aug 13, 2012 12:28 am
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Forgot something. I did order this one just to see whats its like. You can get parts for this one and the parts are pretty cheap. Thought I'd give it a fly.

Tom

http://www.xheli.com/at-11044-md500-24ghz-greenheli.html
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firedude52
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Joined: 29 Jun 2012
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Location: Central coast of Calif.

PostPosted: Fri Aug 17, 2012 12:15 am
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Tom, the one Dynam clone looks like the eSky alright, but the bad part is the Dynam electronics are horrible and I mean bad/junk. I wouldn't trust them for anything. Already been there (as many have) with my 450. I won't buy anything Dynam makes period. IMHO it's all junk. Maybe with a DX6i and Orange Rx along with an eSky 3 in 1 it might be OK. I like the Fuse though!
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carr52
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PostPosted: Fri Aug 17, 2012 1:22 am
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Yeah it looked too good to be true to me also. Didn't buy that anyway. I did buy a 500. The Art-Tech made MD-500. Not sure how it will turn out though. Looks good and time will tell. Being a Big Lama fan myself this helicopter is going to have a tough act to follow. On another note my new key chain camera arrived today.

Tom
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firedude52
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Location: Central coast of Calif.

PostPosted: Fri Aug 17, 2012 1:26 am
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The MD 500 I hear is a good ship. Cool deal on the cam! Cool Wink
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