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HomeAircraftHelicopterHIROBOOther › Freya EXWC
07-20-2002 02:41 AM  16 years agoPost 1
kaltman

rrApprentice

Norway

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I completed building the Heli kast week, and it is a good machine, but it is no good to hover in wind!
Any one having the same problem
Flying Standard Hirobo carbon blades!
I have from before two WC Eagle 97 and they are actually better!
I know also tha t Hashimoto had some problems with it during the WC in Munci also! But I will investigate and test too see what to do

Brgds Kaltman

I realy miss Kalt Helies

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07-20-2002 11:19 AM  16 years agoPost 2
Monty_Burns

rrNovice

Sunny South West England (Yeah right!)

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We have an EX and an EX WC in our club and they are both rock solid in the hover - though they both have TG blades and not the stock hirobo ones. They are both fitted with 80-90 size engines aswell.

I have flown the EX and had no problems with stability at all.

Very nice helicopters, quality is the best I have seen, flight performance is also nearly perfect (my pref only), though they are not too hot at 3D.

You are not trying to fly in 25mph winds are you?

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07-21-2002 11:39 AM  16 years agoPost 3
Eagle

rrApprentice

Australia

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Kaltman, I am currently flying the same setup, yet have found it to be pretty good in gusty conditions. Piroeuttes same to take a bit of correction like previous heads. Do you have the weights on the flybar in near the head or out near the paddles.

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07-22-2002 02:43 AM  16 years agoPost 4
Chris.C

rrVeteran

Hong Kong

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Compared to my Eagle with V head, the Freya WC is more difficult to do FAI hovering manuvers in strong wind. In calm and mild wind, it is better and more comfortable.

I am changing the pivot balls on the upper ring of swash plate to reduce the amount to the cyclic to see if this is better.

So far, I practice more with the V head rather than the VI.

At the end, I guess I have to find a more acceptable set up and get used to it.

Cheers.

Chris

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07-22-2002 08:46 AM  16 years agoPost 5
Eagle

rrApprentice

Australia

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Has anyone tried a longer flybar on the SSR VI head? The SSR V head has a 555mm flybar on it and the VI has a 490mm flybar. Maybe a longer flybar will give you more stability in windy conditions.

I know most people use the stock item as it is package in the kit but what feels right for the test pilot is not necessarily right for us.


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07-22-2002 09:30 AM  16 years agoPost 6
kaltman

rrApprentice

Norway

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The thing I have did to now is same flybar, but changed paddles to TT carbon(700mm from tip to tip as the V head)! (so this is the answer to you Eagle) The next I will try Change as you say chris is to smaler ball on the upper sw/plate! I will also try to ad weight on the flybar! Also making a new flybar so I get same length as the stock one with paddles!
If nothing help I will by the underslang head I try that!
I am what you call a sunday flyer, and I am no good pilot but it is fun yo have it right! I spoken with the Hirobo team in USA last year and Hashimoto was complaining about this head in wind! but they said that they chould try to do something about it before they start selling it! But as you all know money is money!!!!!!!!!!
A friend of mine said he contacted Rudiger Feil of Germany and he said that the only Thing Hi have done is change to harder damper
But when he was flying in Holland 2 years ago he had his own underslang head! I have two more helies with the same kind of head and that is the old Grand Prix an d the new Sylphide and they seems to be ok! I hope that we can wtite in here what we are doing and maybe we can find the correct solution!
Best reg to all of you
Kaltman

I realy miss Kalt Helies

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07-23-2002 03:06 AM  15 years agoPost 7
Chris.C

rrVeteran

Hong Kong

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Last night I lined up two choppers in front of me to compare the 5 & 6 head. The following is found: 1/. the flybar deflection angle is less on 6. 2/. blade change (6 degree) is same for both head when full aileron, 3/. blade change(b) as a result of fly bar deflection(d) : b/d = 1 on 5 head, b/d < 1 on 6.

So I think I should increase the flybar weight on 6 head first and then change the pivot balls on the swash. Reason is if the flybar weight is increased, the chopper will hover better in the wind(hopefully ) but this may make the chopper not reactive to control. After all, we have to balance between hovering and aerobatic manuvers. Question is where is the balance point.

Any thought?

Chris

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07-23-2002 11:15 AM  15 years agoPost 8
Eagle

rrApprentice

Australia

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Kaltman, I noticed in the JR section that you have a Sylphide which has an almost identical head on it. How much difference is there between it and the SSR VI? What length is the flybar and what type of paddles? Are the head dampeners hard or soft?

Does the JR head hover better in wind then the WC head?

It would be interesting if the same head has totally different characteristics.

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