RunRyder - Freya's performance with OS61SX

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HIROBO Freya - Sceadu - Shuttle > Freya's performance with OS61SX

volare
Veteran
Location: Cincinnati Area

I know that the Freya is pretty heavy for a 60 machine. How much can it be thrown around with an OS61 in it? Will it have trouble with some of the harder manuvers?

03-17-2002 Over year old.

Todd
Senior Heliman
Location: Nashville, TN

It is heavy, that IS a fact. It weighs in at 11.00 and 11.25 pounds depending on configuration. To me that is heavy, get the 80/91.

03-17-2002 Over year old.

HOMEPAGE

RaptorCop
Senior Heliman
Location: Visalia CA

How does the weight of the Freya compare to that of the Raptor 60?
At what point do you notice the deficiency in power with a .61 sx-h on the Freya. Is it only in extreme 3D?

03-17-2002 Over year old.

HOMEPAGE

z11355
rrMaster
Location: 10000 is enough time wasted.

depends on your definition of 3D and 'extreme' 3D.

If your really gonna go extreme, then I think an 80 or 91
is the way to go.

03-17-2002 Over year old.

HOMEPAGE

Dave_D
Key Veteran
Location: Philippines

The OS61SX (and the YS-61STs) has been the mainstay of high performance flying for quite awhile. Extreme 3D CAN be done with it. I don't believe stuffing more horses will compensate for lack of skill or ability to setup the helicopter properly whatever it weighs.

Most of the current maneuvers classified as 3D were first attempted and mastered by flyers using these engines so I don't believe the impetus being propogated to chuck all our 60 size engines is proper.

Before somebody slams me, I DO have a monster motor waiting in the box. But I want to be able to do these maneuvers on a 60 size engine first since most everybody prior to these engines being released was able to do so.

When I was using one, all the motor gave me was faster forward flight and increased climbout which is nice, but like a Governor was not needed to fly 3D. Sure the reserve is there if you need it, but don't you think you would be a better flyer if you can fly these maneuvers like what the pros used when they invented them?!

During the last funfly, I got some applause for my flight (loops, rolls, stalls, inverted, some flips and 180 degree autos)... and when they
inspected my (heavy Freya) heli, some thought I was using a OS91 or YS80. Nope.. it's a OS61. That impressed them more.

I'd wholeheartedly recommend changing to the bigger engines when you get to rolling circuits, tumbling circuits, pirouetting tumbles or flips. Anything less than that, the 60 size engines will be up to snuff.

03-17-2002 Over year old.

SemiArticulate
Veteran
Location: On Location

Dave_D is right on the money.
I have an OS61WC in my heli. The only big thing about not using the "monster engines" is that you need to learn collective managment to a greater degree during 3D. That can't be a bad thing. If you are sloppy with the collective then you will hear the engine bog down (yes I use a governor) in "3D" with a normal size engine. With a bigger engine, you have a harder time bogging down the engine and can afford to be more sloppy and can force corrections. I am putting a bigger engine in mine because it gives faster FFF and as a result it will carry the heli higher in a vertical cyclic climb (nose straight up). I like those for some reason and you can do more tricks during the climb and fall when you have more momentum. So the others can tell you if I am wrong on this, but I think learning tricks while not having an absurd power to weight ratio will make you a better pilot than having that power. If I am using gross stick movements, my heli tells me. However, I can't wait to try a 91 in it.

03-17-2002 Over year old.

rappyfly
Senior Heliman
Location: Toronto, ONT

OK!

I have both machines. The freya is heavier the the raptor. My freya is more than 11 pounds and R60 (fully loaded upgrade raptor 60) is close to 11 pound.

I had a freya with OS61wc. But, I put a YS80 in there after saw my friend's freya having so much power with YS61st and MP. Mine was like lack of a bit power to perform, and it bog down when continuous of full cyclic and pitch changes applied. So now, I have R60 with OS61wc and MP. OS push it well and will not bog down a lot, but it's noticeable.

03-17-2002 Over year old.

d-n-jensen
Veteran
Location: Bellevue WA

IMHO

I flew a Fury with a OS 50 all last summer and with the limited power available I was able to do all the 3D I wanted. It made me a better pilot as I needed to plan ahead and not over do the collective. The saying "there is no substitute for HP" is very true. HP allways comes at a steep cost. The engines cost much more, they burn much more fuel, they need bigger main blades which cost much more. There are several Freya's in the NW and most have 60's and fly great and can do anything. I have flown Freya's with both the 60 and the 90 and the 90 is way to cool as there is no substitute for HP. If you have lots of money and want to experience dynamic 3D get the 90. If you are a fairly new pilot and have not started 3D (inverted or any hard aerobatics) get the 60 and learn before getting the 90. The extra HP of the 90 can both save your but and also get you in trouble very fast.

03-17-2002 Over year old.

traderdave2
Veteran
Location: Covington, GA

I flew a freya for quite a while with an os 61 on 30%. The heli had plenty of power to do about everything you could wish. I now have the 91 on 15%. The extra power is nice but it doesn't give me any more capablity right now. Things are a little bigger and a bit faster with the large engine. The 15% fuel is very nice.

What is your definition of some harder manuvers?

Harlan

03-18-2002 Over year old.

Taipan
Key Veteran
Location: Sydney, Australia

But to get the most out of the 61 is to use 30% fuel, right? The 61 is designed for that fuel, right again?

Well, 30% fuel is too expensive down under which is why I'm considering switching to a 91 & using 15% fuel. The verdict is it runs well on that fuel & is designed for so. Obviously even if the nitro is halved, it's more powerful than the the above.

03-18-2002 Over year old.

Dave_D
Key Veteran
Location: Philippines

I'd say it pretty much evens it out... on a 91, you only get 8-10 minutes flight time versus 12-15 on a 61 equipped Freya.

03-19-2002 Over year old.

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HIROBO Freya - Sceadu - Shuttle > Freya's performance with OS61SX

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