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HeliHobby . Ron’s HeliProz South . Century Helicopter

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HIROBO Freya - Sceadu - Shuttle > Sceado 30
 
 
Peter G
Senior Heliman
Location: Runcorn, Cheshire, UK

UK
Sceado owners
Just wondered if there are any Sceado owners in the UK, and what there views are on this kit, also what blades and any mods they have made.
I have a Sceado 30 with OS32 csm 180 Gyro, Futaba 3001 servo,s and Futaba FF8. Very pleased with it even though i am at the moment just flying circuits. My heli is standard except for the lower main mast support that i got from Midland Heli as i thought there was to much flex in the side frames as this could lead to stripping of the main gear as reported on many sites. I am looking to change the standard blades as the covering has pealed of in places, any sugestions as to what blades work well.
Thanks Peter G
01-14-2002 Over year old.
HOMEPAGE  
 
 
Greg Takacs
Veteran
Location: Fort Worth, TX

You might want to get the 3rd bearing block for the main shaft, it will improve rigidity drastically and should get rid of your worries about the gear stripping. The DTDS system is also available, it has better machined gears and will add driven tail, however that might not be what you want on a 30 size heli.

Quick UK is coming out with a TON of hop-ups for the Sceadu check my site for a list of upgrades and part numbers.

As far as blades go, I'd recommend some 550 SABs, they are really nice blades I have used them on my Raptor 30. I fly ith 600mm MS blades on my Sceadu 50 and they seem to be fine however some reported blade flutter with them that only switching to V blades cured.

Welcome to the club of Sceadu owners, make sure you have fun!
01-15-2002 Over year old.
HOMEPAGE  
 
 
moose
Senior Heliman
Location: Somerset UK

Peter

I am flying a Sceadu 30 with an OS32 SAB 550 mains and SAB tail blades. I have made two mods to mine, I have fitted the Eagle canopy mount system and also I have fitted a Shuttle aluminium fan (from Quick UK, the later version). I am using a Zimmerman muffler on mine with Coolpower 15%.

I am very happy with mine apart from one annoying problem that I (and a couple of other people - including a professional r/c heli pilot) can't resolve. I cannot get the phasing right on the swashplate so I have some interaction on the cyclic. From all the posts that I have read nobody else appears to have this problem so it must be something that I have done wrong. We have checked the alignment of the pitch plate etc. and it is perfect, in fact we can put the block out of alignment so the set up is not correct and it appears to make no difference !! Because of this all flights at the moment are test flights trying to find out what is wrong.

I have not had any overheating problems but the weather has been very cold and I am still running my engine slightly rich.
01-15-2002 Over year old.
 
 
Greg Takacs
Veteran
Location: Fort Worth, TX

Moose,

The FC-16 and above radios have Swash phase control wihch means it will electrically "counterphase" (mix) your elevator and aileron to give the proper phase. I don't know what radio you use but that one sure does it.

I haven't experienced the phasing issue of course that could be because I haven't really checked for it......
01-15-2002 Over year old.
HOMEPAGE  
 
 
moose
Senior Heliman
Location: Somerset UK

Greg

Thanks for that. I am using a FF9 and I will check to see if that has the facility. I was hoping to solve the problem without resorting to mixes as I am sure it is something I have done wrong somewhere in the build.

I know of one other case of somebody having the same problem and they have still not resolved it.

At the moment we are looking at the problem so hard that I think we are probably overlooking something very obvious !!
01-15-2002 Over year old.
 
 
moose
Senior Heliman
Location: Somerset UK

Martin

The simplest way to explain the problem is when the heli is hovering (this has to be done in near still conditions to be sure of the effect), if right aileron is applied the heli will move to the right but also back at the same rate. The same applies to left and foward. With the heli on the ground, if the blades are spun up to near hover and right aileron is put in you can see the swash tilt backwards a fair amount as well. I have checked the inner swash connections but will do a double check this evening.
01-16-2002 Over year old.
 
 
moose
Senior Heliman
Location: Somerset UK

Martin

You are correct in your thoughts about the problem not showing when static. With everything set correctly there is no movement fore/aft when left/right cyclic is applied.

My heli is balanced slightly nose heavy when there is no fuel, I had to add 120gms of lead to achieve this - that is with the battery up front !!

The elevator servo was a brand new 9202 which has been changed for a new 94 ?? , I can remember the exact model number now but it is high torque. The problem happens with both.

I will try popping the links as you suggest and let you know what is going on.

I have some head loaders already and I will fit them this weekend.

Thanks for the input.
01-16-2002 Over year old.
 
 
Shagga
Senior Heliman
Location: Wiltshire, UK

I have a Sceadu 50:

OS50 SX-H
Zimmerman muffler
15% Collpower
Enya #3
GV1 govenor
3rd bearing block upgrade
Stock Hirobo 570 GRP blades (fly very true and fast - don't understand why people change to SABs)
9202 on cyclics
GY401/S9253 on tail

Main problems:

Main gear stripping a couple of teeth (still flyable).
Stock muffler too noisy/generally crap.
Canopy mounts - Hirobo cockup! (had to butcher mine to fit)

Other than that it is one hell of a heli!

Anyone contacted Irvine (UK distributor) to ask about replacement of main gears under warranty? I wish they could follow Altechs lead in the US by offering existing Sceadu 50 owners discounts on DTDS/3 gear block upgrades.
01-16-2002 Over year old.
 
 
Hockeytown
Veteran
Location: Pontiac, Mi. U.S.A.

Shagga,

The 3rd Bearing Block is only $16.99 at Cyberheli......that would at least stiffen up your frame and stop any possible main gear stripping in the future. I'd say it's worth doing whether you get the DTDS or not.

Darin
01-16-2002 Over year old.
 
 
Shagga
Senior Heliman
Location: Wiltshire, UK

I fitted the 3rd bearing block after the main gear stripped. As well as having one tooth being missing, the white plastic seems to be chaffed away into small frayed fibres. There does not seem to be any adverse affect to the gear mesh. I am now waiting for a replacement DTDS upgrade anyway.

The only possible cause of the gear damage may have been overspeeding of the OS50 during inital flight testing and needle adjustment. But I am sure it did not go much over about 2000 - 2200 rpm. Surely the design safety factor built into the gears must be higher than that. This is why I put the GV1 govenor on it, although my pitch/throttle curves now work pretty well without overspeeding and good power.
01-16-2002 Over year old.
 
 
mash
Heliman
Location: Stratford-on-Avon, UK

There are at least three Sceadus in the Stratford-on-Avon area, two flying, one in gestation. All OS50 powered.
Mine has done most flying - about 20 flights so far - and I haven't really tried to throw it about much (not that I could anyway!). I'm very happy with it, but like you I find some of the postings re stripped gears alarming, so I've ordered the bottom bearing.
Mine is fitted with a CSM400 which I've managed, by the use of thinner-than-recommended foam tape, to squeeze onto the front mount. This does not seem to have affected the performance of the gyro, and it makes the wiring much more sensible. Whether Colin Mill would approve is another matter....
I had a few small problems in construction and operation; you will have read about the tedious canopy mounts and the slipping top-start adapter. All I can add is that in my kit the ball joint on top of one of the triangular pitch linkage arms (step 1 in the assembly instructions I think!) required only gentle finger pressure to pop out, so I waited for a (free) replacement before risking it.
The only vaguely interesting thing on it is a Mainlink "Black Box" signal monitor which tells me whether there have been any radio glitches during the flight.
The Skeadu was bought out of an insurance payout following the theft of my venerable Shuttle ZX complete with all flight gear (and many of my garden and DIY power tools). I find it much more comfortable to fly, partly 'cause it's bigger and partly 'cause it has so much power in hand.
01-17-2002 Over year old.
 
 
moose
Senior Heliman
Location: Somerset UK

pich/roll coupling

Martin

I did some tests over the weekend and this is what I have found.

The links on the inner swash are correct. After popping the links etc. as you suggested I found that I am getting excessive pressure on the elevator rod with the swash tilted. This would lead me to believe there is some type of high point on the swash, exactly as you said. I have just ordered a new swash and will let you know the outcome.

Thanks for the input.

Bob
01-21-2002 Over year old.
 
 
fitenfyr
rrProfessor
Location: Port Orchard, Washington

Hmmm.....

My US kit 50 is doing a similar thing? I checked mine and the phasing appeard off and I am sure I set it. I have re set the phasing and I will have to try another test flight. Maybe a bad batch of swashplates?

Maybe Jeff will pop in with some advice.
Going to Vegas this weekend I will have some of the Hirobo reps check it over for me.


Jason

Jason Stiffey
Fly Fast....Live Slow...
01-23-2002 Over year old.
HOMEPAGE  
 
 
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HIROBO Freya - Sceadu - Shuttle > Sceado 30
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