Hehehehe, RC heli/plane is not a toy!
Do not ignore the risk from the spinning rotor/blade.
Hobbies RC Flying Models v3
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 Mar 17 2011, 10:49 AM
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#141
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Junior Member
39 posts Joined: Jul 2007 
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Mar 19 2011, 08:33 AM
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#142
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Junior Member
39 posts Joined: Jul 2007
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trex250 quite expensive compare to its 450 size brother.
Any other clone that is cheaper and closest to the Trex250's performance/quality to recommend? |
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Mar 19 2011, 04:48 PM
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#143
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Junior Member
39 posts Joined: Jul 2007
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Really ah, try to ask for me, please .......
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Mar 20 2011, 06:04 PM
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#144
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Junior Member
39 posts Joined: Jul 2007
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too bad, if the condition is still good I am willing to get it for not more than 500 bucks ..... nvm lah save $$$$
the one in MRC has no gyro and 4 servo, if I get it I think it would be the price of another kit .... Added on March 21, 2011, 12:52 pm Qiw, If I am getting a 250 kit do you think the BCPV2 ESC (25A) is suitable to use? Would it be a bit heavy since the stock Trex250 only 15A which is lighter I belive .... This post has been edited by daddoo: Mar 21 2011, 12:52 PM |
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Mar 21 2011, 05:50 PM
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#145
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Junior Member
39 posts Joined: Jul 2007
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Thanks for the info.
But wonder how the Align stock ESC supplies current to 3 DS410 & 1 DS420 since it is only 2A continuous or 3A burst. I know that a lot of the BCP ESC catching fire because the BEC is overloaded with just the stock servo. But both have the same rating ....... |
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Mar 21 2011, 09:12 PM
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#146
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Junior Member
39 posts Joined: Jul 2007
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Wow, found a better deal with copterX 250SE
Around USD 130 including shipping, brand new ...... but this brand good ar? Added on March 21, 2011, 11:36 pm QUOTE(QiW @ Mar 21 2011, 07:23 PM) same ratings does not mean they are the same If you just want a decent 2A BEC in ESC, you can try HobbyWing's Pentium. But beware of the fake Pentium and there are a lot out there as reported by the people in China.diff manufacturer ... maybe the ESKY ESC is 2A max but didnt say ?? the ds410 does not like to run at 6v (shortens lifespan significantly) i read in kwai loh forums so i used an external BEC for my PRO running at 5V from my experience .. EMAX 25A ESC BEC sucks i experimented ... 1 standard MG servo pulling retracts with a bit of binding .. the ESC got super hot and eventually cut out this ESC is supposed to have a 2A BEC but still cannot supply current to ONLY 1 standard servo the good one i have used so far is the turnigy plush 80A with 3A SBEC ... i used it with 1 mini MG servo (retracts) + 4x9g servos no prob the other good one i have experience with is the turnigy blue series 40A with 4A SBEC ... used it with 7x9g servos oso no prob  This post has been edited by daddoo: Mar 21 2011, 11:36 PM |
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Mar 22 2011, 01:03 PM
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#147
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Junior Member
39 posts Joined: Jul 2007
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Is the Trex 250 SE parts compatible with the old/standard/first version of Trex 250?
It looks like there are number of improvements on the SE version. |
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Mar 22 2011, 05:30 PM
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#148
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Junior Member
39 posts Joined: Jul 2007
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roughly what is the percentage of incompatible parts?
Can you name a few of it? |
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Mar 23 2011, 10:45 AM
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#149
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Junior Member
39 posts Joined: Jul 2007
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I see that your signature has so many Walkera's stuff especially v450D01. So far how do you think about this 450 size from Walkera? Comparable to a Trex 450?
Hehehe, I am also a Walkera heli and radio owner. Do you like your 2801 Pro and are you using it to control your Trex 250 SE? |
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Mar 23 2011, 04:03 PM
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#150
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Junior Member
39 posts Joined: Jul 2007
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So far i hav tested my 2801pro from my plane. The radio has no problem with about 200meters. Hehe, i think even with 700 size heli u would not be able to see CLEARLY!
What is the battery size u r using for ur 250se now? The C of the battery? |
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Mar 23 2011, 11:39 PM
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#151
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Junior Member
39 posts Joined: Jul 2007
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Ohhh 850mah, how long is the flight time, let say no hard three D but just sport flying?
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Mar 24 2011, 10:48 AM
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#152
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Junior Member
39 posts Joined: Jul 2007
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OK, 60% will give you 5 minutes. So there should be another 1 min++ of flight time if you want to go up 80% of utilization.
Wow, like that 3D with 250SE may expect lesser time already. But not a problem to me since I dun have 250SE and I dun know 3D yet  |
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Mar 27 2011, 06:07 PM
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#153
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Junior Member
39 posts Joined: Jul 2007
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calvin, your 250SE came with GP750 or GP780?
Added on March 27, 2011, 6:56 pm And if compare, BCP or 250SE more twitchy? Hehehe, I know they are not the same size but one metal one plastic parts, so not sure loh ....  This post has been edited by daddoo: Mar 27 2011, 07:01 PM |
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Mar 27 2011, 09:21 PM
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#154
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Junior Member
39 posts Joined: Jul 2007
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Where's ur 250se then?
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Mar 27 2011, 11:05 PM
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#155
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Junior Member
39 posts Joined: Jul 2007
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don't know Align good or not because I have never owned one before. But I think it is something quite reasonable with the price and quality we get loh ........
Added on March 27, 2011, 11:09 pm Replaced the 4G6 rotor head whole set. Don't think I am going to do invert with 4G6 real soon so just ask ask see see what else can I use to learn inverting loh. You suggested my BCP but I am hesitating..... This post has been edited by daddoo: Mar 27 2011, 11:09 PM |
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Mar 28 2011, 09:48 AM
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#156
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Junior Member
39 posts Joined: Jul 2007
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Yeap, it is like that for 4G6/4G6S. I have been using the same rotor head set for a year and crashing it a lot. Usually I just try to bend it back and reduce the vibration as much as possible.
But unfortunately a recent crash has broken a part which is hard to repair so might as well just replace the whole rotor head. Anyhow, vibration still there but it is a huge different with the stability i am getting now. Just that the tail is still drifting only loh .... dun bother lah as long as I can fly. Hehehe, any plan to let go your Trex 450 Pro or not? |
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Mar 28 2011, 06:16 PM
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#157
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Junior Member
39 posts Joined: Jul 2007
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After a while with my belt cp (which is belt driven too) I have to say I will try to avoid belt driven tail. One thing I hate most is the adjustment of the belt tension. Too loose not good but too tight also not good, there is no proper measurement you can tell whether it is the right tension or not ..... heheheh with torque tube then you don't have to worry.
But each has its pro and con lah, so it is up to your own preference. If you ask me to choose, I will go for torque tube now. Added on March 29, 2011, 11:16 am Aikssss, negotiating for a second hand Align Trex 450 Pro now. About RM700, good deal? This post has been edited by daddoo: Mar 29 2011, 11:16 AM |
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Mar 29 2011, 02:33 PM
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#158
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Junior Member
39 posts Joined: Jul 2007
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ohhhhh, RM300.
How old is that heli? Everything working fine? |
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Mar 29 2011, 03:16 PM
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#159
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Junior Member
39 posts Joined: Jul 2007
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Have you sold you 250SE ar? It has been removed from your signature
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Mar 29 2011, 03:52 PM
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#160
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39 posts Joined: Jul 2007
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The 450 sport was not completed with electronics when you got it?
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