View Full Version : Trex 450SA

09-13-2007, 04:13 AM
Hello All,
I stubled upon this place while doing some research into getting a Trex 450SA for christmas.
I am a freshman in High School. I have membership in two other forums www.rccna.com (http://www.rccna.com) and http://monster.traxxas.com! I have been a very active R/C'r and Have owned a Traxxas S-maxx and a Revo 3.3 (nitro powered Monster Trucks)
I have recently deceided I would like to get into the Electric (Air) R/C Scene after watching some of my dads friends fly there electric planes and there farm. So by no means am I a "newb" To R/C's Just electrics and heli's.

I have decided on getting a Trex 450SA from hobbytown for christmas this year from my parents. I deverted from the Combo edition because that exceeds what my dad is wanting to spend this year on christmas. I will simply go buy the Motor, ESC, and Batterys on my own.:roll:

I would appriciate a "Heads-Up" on anything I should be aware of. And would like a basic description of what kind of ESC, Motor, and Battery/Charger to buy (Brushless,Brushed/Lipo,NiMH)
I know absolutly NOTHING about the "electric scene" and anything that might help would be awsome;-)

I am assuming the kit comes with everything else right?


09-13-2007, 04:40 AM
No replys yet...humm... BUMP

09-13-2007, 07:23 PM
The SA is the preassembled airframe only (as you seem to be aware of). I have four of them in various configurations... and it is a really nice flying heli. You'll need servos (three for cyclic, one for tail), a gyro, a motor, an ESC (w/ BEC), a nice 3S 2000mAh (or greater) liPo, and a RX to complete the heli electronics (assuming you have a CCPM-capable radio already). You'll also need a charger/balancer for the bats if you haven't got one yet.

As for recommendations... well, it depends on your budget and what you want to do with it. I am a big proponent of starting small and upgrading as your skills improve. Since this is your first heli, I would recommend buying (or better yet, building) a set of training gear. You'll also need a cheap (doesn't have to be expensive) pitch gauge to complete the build properly... you can always just guess, I suppose... but a properly configured heli flies so much easier than one misconfigured that it doesn't make sense to me not to set it up right the first time.

Look for the Align 430L/BL35G (motor/esc) combo... it'll save a few bucks buying them together - and it is a good starting point. I'd recommend getting HS-65 servos... going cheap here (like with S75's - I have done this before and it works... but it cost me later when they started to fail) isn't worth it. Now, you don't need a fast digital servo/gyro combination for the tail to start out with... they're great later, but you can always upgrade... I've got one SA set up with an Align RCE-500X/HS-65 combination and it works fine. It's not the fastest tail setup... but the bird flies just fine. I use both Thunder Power 3S1P 2100mAh prolites and 2050mAh extremes, and Flight Power 3S1P 2170mAh EVO25's... not the cheapest - but they are really great bats. I've found going cheap on the bats is like everything else... you'll replace more often, and end up costing you more.

The SA has a really great manual (you can download it here (http://www.horizonhobby.com/ProdInfo/Files/T-REX_450SA_ARF_Manual.pdf)), and if you actually read it - it provides really great setup tips - you'll have all the info you'll need to get the heli flying right off the bat.

As for learning to fly it... I am a Radd grad myself, and recommend his training methodology (http://www.dream-models.com/eco/flying-index.html). It'll get you in the air faster and with fewer costly crashes.

That's about it, I guess... good luck with your heli, and be forewarned... rotory flight is addicting.

09-14-2007, 12:19 AM
WOW I did not realize that was just a pre-assimbled frame! I had no Idea I needed TX/RX and SEvos and all that other stuff. I know how expensive that stuff gets. Can anybody refer me to a RTR Heli?

09-14-2007, 12:56 AM
i got the T-rex 450 SA, which is alrealy 95% assembled. it cost about 150 to 210

futaba's GY401 gyro and digital servo 9650 (you can buy them in a pack for ~200)

three HS-65 hitec servo's ~26ea

A 35amp ESC, i like the castle creations gear.... about $80

BEC power supply, i like the parkBEC (yes you need it!!) ~$20

any 400 or 480 sized brushless motor that turns at 2500 to 4500rpm/volt , i like mega motors so the 16/15/3 is about ~80 ps use 13 or 14tooth gear w/ the 16/15/3

get 3.5mm bullet connectors for the motor....

A 15-20C 2100mAh 3cell lipo, w/ deans Apex are $30, or Thunder power are $80 (same pack)

spektrum Tx/Rx radio system 330, get the one w/o servo's and save

go fly........

don't tell your Dad this! haha get started and then just keep buying stuff, haha that's how i started in the hobby hahaha :)

09-14-2007, 01:13 AM
http://cgi.ebay.com/Align-T-rex-Trex-450S-EP-RTF-Helicopter-Basic-Ver-sh_W0QQitemZ170148675931QQihZ007QQcategoryZ2563QQs sPageNameZWDVWQQrdZ1QQcmdZViewItem

this looks like a super cheap trex setup.....


start with somthing cheaper like this, http://www.hobbypeople.net/gallery/702550.asp

09-14-2007, 01:51 AM
You can always go with a Blade CX2 (great for beginners) or one of the CP's. All of them come with battery, radio, and charger.

Then once you get your skills up..... and some money saved you can always go with a T-rex later.

09-14-2007, 02:59 AM
if you want a RTR heli the Honeybee King II is a cheap budget oriented frame, just don't expect miracles for that price.

T-REX is a serious investment don't go into it until you know your sure to stay at it.

09-17-2007, 07:03 AM
Hey, Blade CP (http://www.horizonhobby.com/Products/Default.aspx?ProdID=EFLH1105)... or Blade CP Pro (http://www.horizonhobby.com/Products/Default.aspx?ProdID=EFLH1300)... or if you want something bigger, Blade 400 3D (http://www.horizonhobby.com/Products/Default.aspx?ProdID=EFLH1400)...

Whatever you do... do yourself a favor: Radd's School of Rotary Flight (http://www.dream-models.com/eco/flying-index.html)

09-19-2007, 05:47 AM
That new E-Flite 400 is looking good.

09-19-2007, 01:09 PM
I would go with the T-rex450SA over the CP PRO ,IMO

09-19-2007, 06:30 PM
I would go with the T-rex450SA over the CP PRO ,IMO

I think most would go this route...but when price is a factor, the CP wins hands down.

09-20-2007, 04:46 AM
well for the money I put in my cp pro I could have bought a t-rex from the start

09-20-2007, 08:14 AM
But if you started with a TREX you might not have the money to continue.

At least that's my case as I bought it 2nd hand managed to score everything for under 100

Sir Krashalot
11-05-2007, 05:35 AM
I'm looking to get into the TREX 450 game and checked out your list.

When I price out this whole list I get something like $1200. I found a
Striker Combo Pack Trex 450S with DX7 TX package on http://www.helihobby.com/html/trex_helicopter.html

Only things I see missing off your list are the parkBEC and charger (I think) but not all items are the same...that is what makes these combos so hard to figure out.

The combo lists for 888.88 Is this a good deal?

Thanks for the list btw.