RealFlight 3.5 (which Heli)

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Uwe Baier - 31 Mar 2007 16:14 GMT

Hi,
I'm new here and to the RC-Helicopter (good'day to all).

In RF 3.5 which heli is the best to train for a 'Hirobo Lama 315' with
e-motor (because this one no have there ?
Or can I download a similar Heli some were?

Thanks.

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Ed Paasch - 26 Apr 2007 21:29 GMT

Your Hirobo Lama 315 is a counter-rotating dual rotor design. The only
similar helicopter currently available in Real Flight G3.5 is the HeliMax
Axe EZ. Hopefully you will find its flight characteristics similar to your
Hirobo.

> Hi,
> I'm new here and to the RC-Helicopter (good'day to all).
[quoted text clipped - 4 lines]
>
> Thanks.

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Doug McLaren - 27 Apr 2007 20:31 GMT

| Your Hirobo Lama 315 is a counter-rotating dual rotor design. The only
| similar helicopter currently available in Real Flight G3.5 is the HeliMax
| Axe EZ. Hopefully you will find its flight characteristics similar to your
| Hirobo.

Of course, the stability of these helicopters is not really a function
of the contra-rotating rotors at all, but instead of that flybar above
the top rotor.

That flybar is pretty clever -- very simple, but it makes it so that a
rotation of the helicopter in a pitch or roll direction will cause the
top blade to oppose that motion.

The bottom blade is the one that is controlled when you move the sticks.

Take away that flybar, and glue the top blades down so they have a
fixed pitch and don't flap around, and I imagine your contra-rotating
helicopter will be just as unstable as any other helicopter.

My Picco Z uses a similar flybar, and is just as stable -- and isn't a
contra-rotating model. But there might be some complications involved
in using that flybar and a swashplate to control the blades as well.
(Actually, now that I think about it, I don't think so.)

Having the contra rotating blades does make yaw control a little
simpler, but a heading hold gyro could have the same effect.

Ok, I'm rambling now. Basically, my point is that it's not the
contra-rotating blades that makes your helicopter so stable.

I've never flown a Lama 315, but the Axe EZ in G3.5 does fly quite a
bit like my Blade CX, so I'll bet that's good advice.

Signature

Doug McLaren, dougmc@frenzied.us
I'm not a bath man myself. More of a cologne man. --Homer Simpson

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Ed Paasch - 28 Apr 2007 12:05 GMT

Interesting observation, Doug. I went straight from an Airhogs Helix to an
Exceed R/C Falcon 40. Not having had a Blade CX (and feeling like I'm the
only one who hasn't bought one), I hadn't observed the opposite movement of
the two sets of blades to control pitch and roll.

> | Your Hirobo Lama 315 is a counter-rotating dual rotor design. The only
> | similar helicopter currently available in Real Flight G3.5 is the
[quoted text clipped - 30 lines]
> I've never flown a Lama 315, but the Axe EZ in G3.5 does fly quite a
> bit like my Blade CX, so I'll bet that's good advice.

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Uwe Baier - 28 Jun 2007 03:08 GMT

Hi, and thanks for your followup.

I not talking about the the small little brother of the 'Hirobo Lama SA
315' 30er size, I mean the big one.
The co-axial Lama I have also and know the Axe EZ. The Axe EZ in
G.3 is much more easy to fly than my 'little' Lama.

But back to question: which one is good for training the real one? I
use always the Bell.

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Model Forum / Radio Controlled / Helicopters / June 2007

RealFlight 3.5 (which Heli)