450 Pro...

[GravityKills]

well, with high timing, it's closer to 4:30 now.
Also, see what I mean when I say "it doesn't bog in tictocs". The headspeed does drop a bit, but it's manageable, IMO.
[ame]http://www.youtube.com/watch?v=CwcArTwL1oE[/ame]
also the flying leaves some room for improvements. Under construction...

[Lynx.1677]

also the flying leaves some room for improvements. Under construction...

Who are you kidding, those are some of the best tick tocks ever! And with a 450.

AWESOME!

[3Dheliflyer]

here a motor i have been looking at other than the neu motor you mentioned its 4800kv and in the description it reads Will give you a rotor head speed between 3000rpm - 3200rpm when used with a 9T pinion


now that is INSANE.


let me know if its the one to go for ,much appreciated.

[Hangar-7]

I've got two of these "Dream" machines - they're kool and setting 'em up is a "no-brainer". I know all of these have been already said - but I thought I praise my machine again - it might improve my flying skill

Here is to "Simply" the best machine

PS : Use Scorpion 2221-8 motor coz I had occasional power failures which I suspected due to faulty Align motor but it turned out not to be so.

[GravityKills]

And with a 450.

LOL the heli can do those better. If I only let it.

The Neu 1107 2Y has a lower Kv winding, and is suitable also for 4s.
There is a 1.5Y variant, which is 3s only. This would be my choice for a higher Kv - or one tooth more on the pinion.

I've burnt my fingers with too high Kv several times, especially with governor. A motor can have too much torque (at speed => too much power), unfortunately.
If the ESC doesn't smooth the transition between flight modes, it might even crunch the main gear - this has happened to me with the 2Y on the 450 SE V2 at least half a dozen times. And if the main gear can take it, the overcurrent toasts the LiPos. In that sense, the 2Y feels perfectly balanced right now - no crazy power, but everything stays cool.

[challis349]

sorry for being dumb here, but what makes the pro so much better than the se v2?

[Hangar-7]

450 Pro has slightly bigger and sturdy feathering shaft, different design fuz, all metal upgrades are already done but IMO, it has only 2x3 adjustment points as opposed to 3x3 points for all previous models.

So you end up with a really solid stable model, hardly any vibrations and a pleasure to fly.

Cheers

[Dave Rand]

The amount of times my crap autos have ended on it side and I've not done a feathering shaft lol crazy!!
My mighty beam I could bend them just looking at them lol

[Rotorhead]

>> I dont think they have done much wrong with any of the T-rex family to be honest
well, let me put it this way: with older models, there are usually quite many "must-have" upgrades, I do see some room for improvements with their current flybarless offerings, ...

You have to go a bit back to really make much of a case for that, back to at least before the 450 SE V1.

[GravityKills]

You have to go a bit back to really make much of a case for that, back to at least before the 450 SE V1.

now THAT is a matter of opinion
For example both the 600 and (reportedly - I don't own one) 500 need quite a bit of work to make them fast enough on cyclic to become serious 3D machines. But that's what they should be out-of-the-box, according to marketing.
The 600N and 700N DO need a header tank or they'll run inconsistently. And the 450 SE V2 is best enjoyed with a HDX "superframe" for a symmetrical servo layout that doesn't interfere with the main gear. The tail pulley problem of the V2 was already mentioned earlier, together with the need for a tougher belt. Those are just the "must-have" upgrades I remember right now.

[trillian]

450 Pro has slightly bigger and sturdy feathering shaft, different design fuz, all metal upgrades are already done but IMO, it has only 2x3 adjustment points as opposed to 3x3 points for all previous models.

So you end up with a really solid stable model, hardly any vibrations and a pleasure to fly.

Cheers

'Just curious, where are these adjustment points?

The thought that comes to mind is what about fitting a 450 pro rotorhead including swash to a 450SE airframe.

[acwman]

Well.. I'm in the Trex 450 Sport camp (Prefer it over the Pro when I had it!)

With the 3G system on it.. it is awesome. Tracking, stability, and it has that chuckability factor

Cannot see myself ever getting rid of it.... also have a beam on 3g fbl, and cannot ever seeing myself getting rid of either of them now

[Lynx.1677]

I have to admit Andy I too was an advocate for a long time of the Sport. Since I've had my Pro back though, I have to say I wouldn't go back to a Sport. No more belt removals and I've had about 8 crashes and only replaced one set of TT gears and am still using the same TT. Perhaps they have improved the strength of the tt gears as I remember stripping them just by slightly clipping the grass a while back.

[acwman]

Hi Dan..

I had the Pro when it first came out.. and remember just having to replace the front gear so many times that I lost count! Also, lost teeth on clipping the grass as you had...Maybe there has been an improvement, and maybe missing out now

..still the Sport has more room over the pro for installing everything a bit tidier

..and my BEAM really is even better

[Hangar-7]

Well, it’s a good question you asked Trillion and I stand corrected – in fact the there are only 5 setting points in 450 Pro and these are:

3x servos to ccpm links
2x ccpm to mixing arms

Wash control arms to flybar cage - fixed links
mixing arms to rotor grips – fixed linkages

Now, 450SE has 9 links, all of which can be adjusted – so there is a constant need to check everything so many times – even after a gentle mishap.

But the main difference why you get such a solid feel from Pro (IMO) is that it has two sturdy aluminium frame (5.5mm thick) on which the main bearings and rotor shaft are located – so again it locks in both upper and lower plates and makes every thing solid. Pic attached :