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HomeAircraftHelicopterBeginners Corner › T-rex 450S good for first bird ?
02-07-2008 11:01 AM  10 years agoPost 21
Dave M

rrApprentice

Mi.

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The s148 are probably too big....just get a hitec 65hb... it will work good foor the tail..

It's OK....It's not your fault !!!

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02-07-2008 07:05 PM  10 years agoPost 22
Bullet175

rrNovice

Brookhaven, MS. USA

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The Trex kit arrived this morning along with the sim USB cable. I opened the box and went through everything and I must say "VERY IMPRESSIVE" ! Its a lot smaller than I thought it would be. Now I know none of my servos will work.

I plugged in the sim cable and set the mapping up and gave it try for a few minutes. Ive got some work to do.

But i noticed the head and frames were already assembled. Well to ask this the short way, do I need to take it all apart and be sure its all locktited.

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02-07-2008 08:37 PM  10 years agoPost 23
stargazerww

rrApprentice

parkside, pa.

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yes be sure to loctite everything i found a couple that needed to have some blue stuff added

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02-07-2008 08:39 PM  10 years agoPost 24
BladeRex

rrNovice

Temecula, Ca

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Glad to here you went w/ the SE instead, it will most likely save you money in the long run as it will hold up better in crashes. I'd also pick up the high carbon main rotor shaft, I've yet to bend one even w/ my heli getting sucked into the side of a slope during FFF.

As for servos I run Hitech HS65MG on cyclic and a Futaba 9650 on the tail, w/ the 401 gyro I get nearly no drift ever and I fly in the wind a lot.

Buy yourself a few sets of wood blades too and save the carbons for later. The plastic fiber or carbon blades fold up really well and don't cost to much but are heavy, they might be a good choice for your first flight as you'll most likely make some blade contact w/ the ground since you won't be use to it and it won't be trimmed in yet.

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02-07-2008 08:46 PM  10 years agoPost 25
helidude2

rrApprentice

marietta georgia usa

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t-rex vs blade 400
the trex is a great heli to start on but recently a new helicopter came out called the blade 400 by e-flite and it is much cheaper rtf and almost as good as the trex 450 but for its price it is way beter

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02-07-2008 08:55 PM  10 years agoPost 26
Santiago P

rrProfessor

South West, Ohio

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A cheaper but better servo is the HS81 for the tail. They sell for about $18, a bit biger (5 grams more) than the HS65, more powerfull and way faster. No slop either.
One of the Align top guns recomended it to me a while ago.
I have beeen using one for a couple of years, and it is the only trouble-free thing on my old TRex 450XL.

Put some flybar weights on before the first flight. Make sure somebody helps you set up the beast for mild hover. Learning how to fly with TRex 450SE is like learing how to ride motorcycles on a 150lbs, 80HP Grand Prix bike, or leaning how to drive on a 800lbs 650HP sprint car.
Sure it can be fun, but the rides may be short!

Santiago

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02-08-2008 05:18 AM  10 years agoPost 27
Bullet175

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Brookhaven, MS. USA

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Spent the afternoon and evening puting the trex together and I have some more questions. go figure.

1 Ive seen this little gizmo called a swashplate leveling tool. Tell me if I am correct in this. Is this tool used to square up the head workings for adjustments to the control rods?

2 My battery a big black and big red wire that goes to the ESC. On the other side there are four small wires going to a female plug. What are these for?

3 this question goes for the main and tail rotors. How tight should I get the blades in the grips ?

4 Should I locktight the motor mounting screws.

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02-08-2008 06:04 AM  10 years agoPost 28
jrett

rrApprentice

san jose, ca.

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I started with a trex 450 se v1 and 6 channel tx. I have a .50 nitro also and still use the 6 channel tx.
I inquired about needing a better tx myself a few months back and here is what I found.

Most people on here will say you need 7 channels. The 7th channel is for a govenor (spelling) which in not necessary at all to fly a .50 nitro or a .90 nitro or a gasser.

The govorner is a nice feature to have, but it certainly is not necessary. What this thing does is it automatically maintains a specific engine rpm for you when you are doing hard manuvers which would cause the head speed to slow down.

This engine rpm is usually adjusted with the 7th channel. So, even if you wanted a governor, but only have 6 channels, you can get one but you loose the ability to adjust it in flight via your TX.

For me personally, I'm nowhere near good enough to have to worry about taxing my helicopter to the point where a governer would give me any benefit. But when I do, I can start off with a manually adjusted governer.

I would definately not worry about the transmitter for now. The first thing you want to do when starting out is to get something reasonably priced. That way you dont spend a fortune on a hobby that you don't even know if you'll really be into or not.

But that's how I roll.

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02-08-2008 04:48 PM  10 years agoPost 29
BladeRex

rrNovice

Temecula, Ca

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Spent the afternoon and evening puting the trex together and I have some more questions. go figure.

1 Ive seen this little gizmo called a swashplate leveling tool. Tell me if I am correct in this. Is this tool used to square up the head workings for adjustments to the control rods?

2 My battery a big black and big red wire that goes to the ESC. On the other side there are four small wires going to a female plug. What are these for?

3 this question goes for the main and tail rotors. How tight should I get the blades in the grips ?

4 Should I locktight the motor mounting screws.
1 That's correct. If you can set it up square/level from the start you won't need much trim adjustments to get the heli to hover w/ the stick centered (although you'll always have to make some inputs as wind/ground effect if close to the ground will cause it to move). W/ my Trex using the batterry that came w/ it I can't move the battery far enough forward to balance the heli (partly because of the location of the ECS and length the wires) so I have my swash plate setup leaning slightly forward for a centered stick hover.

2 This plug is for a balancer. Some balance chargers will also charge thru this plug, others will you use the large gage wires for the actually charging.

3 On smaller Heli's like this they don't need to be as tight as the larger ones but you want them tight enough that they won't move during RPM changes, but still loose enough they can fold back.

4 It's a good idea to locktight all scews, especially ones going thru metal to metal. On plastic it's not needed so much but isn't a bad idea to still do it. Screws going into plastic some CA works good to lock them in.

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HomeAircraftHelicopterBeginners Corner › T-rex 450S good for first bird ?
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