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Sig Mayhem 3D ARF

Old 01-01-2008, 10:59 AM
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Default RE: Sig Mayhem 3D ARF

First flights for 2008 this morning! It hovered! Heheheh and pulled out with the 1.00 but slowly. Grandad, you were right! I can forsee more power in the future for this plane as I continue to learn it.... Saito 125 more than likely! Here's a pic.
Old 01-01-2008, 11:01 AM
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Default RE: Sig Mayhem 3D ARF

Oooops... here we go. BTW Where IS everybody?????!
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Old 01-03-2008, 03:22 PM
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Default RE: Sig Mayhem 3D ARF

What a great thread-read all the posts and this plane must be super. I have had one in the box since early last year-never got excited about putting thr ARF together but now I am. I want to start ordering stuff to get ready for assembly in February. I'm up in the air between a YS110 and the Saito 125. A buddy has a 125 and it is fantastic but, no pump and not the greatest inverted. Help me decide between the two???
Old 01-03-2008, 10:47 PM
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Default RE: Sig Mayhem 3D ARF

I've had both the Saito 125 and YS 110. I went with the mighty 110 in my Mayhem. Excellent combo. The YS will clearly make more power. And it has the advantage of a pump so the fuel tank can be located anywhere. Usually along the CG line. Also the YS is quicker on spool up because of the supercharger. The YS is harder to tune but once you get it there it requires no additional tuning, ever.

Awesome engine the mighty 110. Nothing against Saitos...I have several, 100, 125, 82, and I like them. But the YS out performs them.

Thanks
Barry
Old 01-04-2008, 10:37 AM
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Default RE: Sig Mayhem 3D ARF

Thanks Barry, You seem to be the guru of the Mayhem, after reading this lengthy post. (A 110 it is) never owned one but this should be a good start. Would it be wise to mount the engine sideways to avoid any potential problems running at low R's with inverted engine, I don't want to add any glow igniter gagit and don't want to be thinking in the back of my mind a flame out on approach. Your thoughts?
PS-Thanks and very nice thread.
Old 01-11-2008, 04:23 PM
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Default RE: Sig Mayhem 3D ARF

Here's what I'm installing for my YS 120:

http://www.switchglow.com/

Mike
Old 01-11-2008, 04:51 PM
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Default RE: Sig Mayhem 3D ARF

Thiis is what I don't want to do. I assume your doing this because you figure the engine won't run correctly. Many posts have indicated no troubles with the YS when properly tuned. None of these engines are specifically designed for inverted flight but some perform fine inverted. I just want to know from those flying it if I have ANY worries-My first YS and First inverted engine. Don't mean to step on your glow plug thing-just something i'm trying to avoid. I work on the KISS principle.
Old 01-11-2008, 05:00 PM
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Default RE: Sig Mayhem 3D ARF

It will be fine on the mayhem as long as it's tuned correctly.
Old 01-11-2008, 05:07 PM
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Default RE: Sig Mayhem 3D ARF

I'm going to try it, but you know how your confidence drops on just one deadstick while on approach. I will have it run in well and tuned right before it goes up-Thanks
Old 01-17-2008, 07:46 PM
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Default RE: Sig Mayhem 3D ARF

Hello. I have been following this tread on and off for over a year now, but this might be my first post. I have been wanting one of these babies for a while now, and as I have been making preparations to purchase one, I still cant decide between the saito 1.25 and the 1.50. I know that a 1.50 would usualy be overkill, but up here in Utah I'm at about 4600 ft and I think I might actually need the extra power. What do you guys think???

Thanks for the cool thread!

LT-40
Old 01-17-2008, 08:38 PM
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Default RE: Sig Mayhem 3D ARF

LT-40 I have A 150 Saito on mine and I love it.The 125 will do just fine on it and it has A lot of power.I have A 125 on my Frenzy and it pull's it straight up on comand.I just pull my throttle back A little on my 150 and it make it A little easer on fuel LOL.I and running A 16-6 airmaster prop on my 150 and I have on problem on take-off or landing.Hope this helps.


Joe
Old 01-17-2008, 08:49 PM
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Default RE: Sig Mayhem 3D ARF

Thanks for the quick reply grandad!,

I think I may be leaning towards the 150 mostly because I have a friend who has one to sell to me for cheap. I do like how little the 125 weighs though. If I go with the 150 I guess it will give me an oportunity to practice my throttle management

Thanks so much,

LT
Old 01-17-2008, 10:04 PM
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Default RE: Sig Mayhem 3D ARF

LT-40,
I have a Mayhem with a YS110 on it. That makes about the same power as the Saito 150. It's a great combo. You should use the 150. I'm even higher than you. You won't be sorry. Prop it with a APC 16x6. That's the same prop I use on the mighty 110. It will work great with the Mayhem. You'll be just over eight pounds with the 150. It will fly great. And you won't believe the flat spins. Just awesome.

thanks
Barry
Old 01-17-2008, 11:34 PM
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Default RE: Sig Mayhem 3D ARF

Thanks Barry,

The 150 it is! Now all I need is about $1000 to get this plane bought and built (Including new radio and digital servos)

LT
Old 01-20-2008, 10:59 PM
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Default RE: Sig Mayhem 3D ARF

Sorry for bringing this thread up again, but I have a quick question about servo choice. I apoligize, because I'm sure that a similar question has been answered, but in my quick scan of the thead, I didn't find quite what I was looking for.
My quesion is, what would the best servo choice be between HS 5645s all around, or 5625s on ailerons and elevator, and a 5645 on the tail?

Being new to this stuff, I'm not sure which would be best. I know that for 3D you want both speed and torque, but would the 5645s bee too slow? or would the 5625s be to wimpy?

BTW, I'll be running on 6v

Thanks so much,

LT
Old 01-21-2008, 12:04 AM
  #1041  
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Default RE: Sig Mayhem 3D ARF

Finished second in my first competition ever. Flew my Ahem.
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Old 01-21-2008, 12:46 AM
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Default RE: Sig Mayhem 3D ARF

i got 5645's all around on my mayhem, and i have no issues - also, on 6V they are little monsters for the money...
with the right control horns and arms, of course.

Old 01-21-2008, 03:20 AM
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Default RE: Sig Mayhem 3D ARF

I have been flying a 3D Mayhem for almost 4 years with a small Saito 91. It does a good job but a 100 would be better. Frankly though, I can't imagine needing more than a Saito 125. Even with the 91, I add a small amount of weight in the tail to get good 3D. You will be adding a lot of weight between the bigger engine and the tail weight to offset it. At some point enough power is enough. And remember, light planes fly better.
Old 01-22-2008, 11:34 PM
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Default RE: Sig Mayhem 3D ARF

Thanks for the info twigster!

I think I will do the 5645s then. I guess that on 6v they are fast enough?

Rfabbre,

I totaly agree on the weight issue, and I have been looking for ways to save a little weight here and there (lipo rx battry, wood prop, etc) , but I still think that I need at least a 125 because of my elevation. I'm sure that your plane flys great on a 91 because you are at sea-level, but here in Utah at almost 4600 ft, our unofficial club slogan is "If it aint above the recomended engine range, then its underpowered."

Like I said, I agree with you, but I dont want to be wishing that I had more power. I'm power hungry[>:]

Thanks a bunch!

LT
Old 01-23-2008, 02:54 AM
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Default RE: Sig Mayhem 3D ARF

I don't think you'll be disappointed with the 125. A flying buddy has the mayhem with a .91fx on it and at sea level it has plently of power. It's not "overpowered" though and a .91fx has more guts than a .91fs engine. That Saito is LIGHT too! I love mine.
Old 02-09-2008, 02:31 PM
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Default RE: Sig Mayhem 3D ARF

Well, here she is!
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Old 02-09-2008, 09:42 PM
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Default RE: Sig Mayhem 3D ARF

I got my mayhem out today and put it in the air and I almost forgot how well it did fly.I hadn't flew it in about A year because of all the other planes I have.I go too the field with my trailer and it holds 13 planes and the trailer is full so i have A hard time decideing on what too fly.The wind here in Oklahoma perty much lets me know when I can fly what plane LOL.I have some heavy planes with gaser's on them that i fly in the wind,And I have been putting new plane together and flying them too so I went in the trailer today and got out my Mayhem and I and one of my flying buddy flew it.I did my first knife edge today with it and i was trying too land it just as A gust of wind hit anf I did my first hover LOL as it was unexpected.The wind got it and lifted the nose up so I held it there fo A very short time it look like it was going too roll over so I throttle up and pull out of the hover,It was no problem pulling out with my 150 Saito on it.This is A remarkable plane for anyone too fly,I have had it for almost 3 years but it set in my shop and in my trailer for the last year with out being flow.I have only been flying for 4 years my self and i was 61 when I learn too fly so I'm not that good but I will try anything too get better,My buddy's at the field help's me A lot on the knife edge and the flat spin and water fall's and some I can't spell LOL anyway I thought i would try too keep this thread going even if it is only about my fly day at the field.Hope everone else had A good day.

Joe
Old 02-13-2008, 09:03 AM
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Default RE: Sig Mayhem 3D ARF

Grandad you're a hero!
Learnt at 61 and doing 3D? That's outstanding!
Maybe one day I'll come see you fly!
I say...Fly a lot!
Old 02-13-2008, 11:50 AM
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Default RE: Sig Mayhem 3D ARF

i don't think any of us mind an excited flight report...and keep pushing the limits of your flying, no matter how old!!

I'm still enjoying the pants off of my Mayhem.... YS 120 is what i got in there,, and it's not over powered, but it does the trick...
5645's on 6 volts seems to be plenty.. and the trusty 9C is still working for me , even if i'm still on 72megs!

still can't belive i got this plane RTF on a trade for a Heli-max 450! the trade of a lifetime!

Old 02-13-2008, 01:10 PM
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Default RE: Sig Mayhem 3D ARF

I have Sig Mayhem 45 size The plane is very stable in flight and it has zero stall point very easy in take off and landing besides you can land it in hovering position in a very easy way it is good in all aerobatic flights except it is poor in knife edge flying. concerning the assembling the only difficut point I faced is the installing the tank all other installation parts were very easy and simple.

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