out of interest why is the Trex 250

[invasion]

Was just wondering why the Trex 250 is so bad as a beginners heli ? is it that hard to fly ?
I would of thought that as a lot of new people are coming from small heli like the mSR and Walkera's that this would of been the next step??

The new eflite SR is that so different to the 250 it is only 55mm longer than the trex 250 and is being marketed as the next step up from the mSR.

I have gone for the 500 now so this really is out of curiosity.

[Stuart]

Without getting into it major league the smaller the heli the more unstable it get's specifically when dealing with a 6ch non fixed pitch format.....

So the Trex250 is a neat trick but has no room for error.

[tonystevens]

twitchy little buggers they are!

[lex7919]

Was just wondering why the Trex 250 is so bad as a beginners heli ? is it that hard to fly ?
I would of thought that as a lot of new people are coming from small heli like the mSR and Walkera's that this would of been the next step??

The new eflite SR is that so different to the 250 it is only 55mm longer than the trex 250 and is being marketed as the next step up from the mSR.

I have gone for the 500 now so this really is out of curiosity.

Its all a tradegy of marketing hype im affraid!

Ultimately and also without going to into yes they are that hard to fly! there not even in the same leauge as fixed pitch MSR and alike, which i hope some will forgive me are more toy than rc heli.

As has been said you just have no time to think! so unless your reflexs are polished to the point its natural get some thing else. (i know you have the 500 and a good choice)

[Nick B]

I fly mine by blinking one eye at a time

Ive only been flying a year myself,theres no way i could of flown this back then...i certainly would of crashed it alot though

[coptermanic]

They simply lack the stability of their bigger siblings, due size=little inertia=easily disturbed=unstable.
The coaxs have more flexible blades, allowing a bit of coneing, are more stable. The stiffer blades of the 250 - allowing inverted etc - do not give this coneing effect. Hence the skittish nature of the 250.

[POLAR BEAR]

I,ve got a Rappy 50 , Rappy 90 and a Trex 450 of the 3 the Trex 450 is the worst to fly out of 5 flights i,ve busted it 3 times god knows how much more twitchy a 250 is

[R1stu]

Very twitchy. may sell mine as stugling with it.

[dam74]

Its all a tradegy of marketing hype im affraid!

Ultimately and also without going to into yes they are that hard to fly! there not even in the same leauge as fixed pitch MSR and alike, which i hope some will forgive me are more toy than rc heli.

As has been said you just have no time to think! so unless your reflexs are polished to the point its natural get some thing else. (i know you have the 500 and a good choice)

He's talking about the eflite SR which is an unreleased product by eflite which is about the same size as a Trex250 but I think it's a fairly stable beginners heli.

[EtheAv8r]

Yes as I have said before, my TREX 250 is my most difficult machine to fly.

Got my mitts on a eFlight Blade SR on Monday - I was in Inwoods when the Rep brought is a sample. Bigger than the TREX 250, and it looks OK - a lot of plastic of course. They were going to fly it, but had to charge up the Lipo first and I could not hang arround. It comes with a TX and they will not be doing a Bind 'n Fly option.......

[dam74]

Yes as I have said before, my TREX 250 is my most difficult machine to fly.

Got my mitts on a eFlight Blade SR on Monday - I was in Inwoods when the Rep brought is a sample. Bigger than the TREX 250, and it looks OK - a lot of plastic of course. They were going to fly it, but had to charge up the Lipo first and I could not hang arround. It comes with a TX and they will not be doing a Bind 'n Fly option.......

Oh well, I'm sure they'll sell well but I won't be buying one
Let me know how it goes.

[EtheAv8r]

Oh well, I'm sure they'll sell well but I won't be buying one
Let me know how it goes.

We I won't know as I won't be buying one. I have enought Tx's and am reducing it to 2 - The DSX12 and the Innovator TX. No more TX's in my house.... it winds up my wife, and frankly having splashed out for the DSX12 if a model can't fly from that - I am not having it!

Actually the SR will fly from the DSX12 as it has an AR6200 TX... but I would have to throw away the TX... or sell it... or maybe give it away to a youngster.... we shal see how they fly, maybe I will check one out!!!!

[Bart101]

If you just take it slow, it's not really that hard... The 250 was my first heli....

If you take you time with it, the 250's great fun

[EtheAv8r]

If you just take it slow, it's not really that hard... The 250 was my first heli....

If you take you time with it, the 250's great fun

Of course you could just be a natural, or young, or both!!!!....., rather than an old fool approaching pension who is ovejoysed to just fly a helicopter round in 'scale like' fashion (rather like a conventional plank) with the odd loop and still yet to try a roll... and get it home in one piece!

But yes I find the 250 great fun, but very challenging. I can relax a lbit with the Innovator and zoom all over the sky with only the occasion fright per flight, G5 is more demanding, but also probably my favorite... but I love 'em all!

[moyesboy]

As thje heli gets smaller, the mechanical "issues" stay the same size.
so the control of the smaler heli gets effectively more precise.

On a trex 700, 0.25mm of clearance in a linkage might be 0.25 degrees of sloppy pitch on the rotor blade.
On a trex 250, there will still be 0.25 mm of clearance, but the heli is 1/4 of the size and there might be 1 degree of pitch slop at the blade.

That explains why the smaller helis have more mechanical problems than the larger ones.

The aerodynamic scaling also makes things more difficult at a smaller size. The vlaumeof disturbed air is larger compared to the size of the heli because the smaller heli is effectively flying in thicker air.