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Old Feb 14, 2013, 07:32 PM
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Canada, ON, Burlington
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Originally Posted by mopetista View Post
thanks - now I know what you mean. I encountered flat head / counter sunk screws on outrunners, and there is no way you can get at them with pliers
You could always drill them out then replace with larger screws...
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Old Mar 07, 2013, 06:34 PM
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Marton, New Zealand
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Well I've decided on a 7S setup.

I was about to order this:

Dr Mad Thrust 1200kv 3700watt 90mm EDF Inrunner 6-8s
http://www.hobbyking.com/hobbyking/s...ion_40mm_.html

And use the 90DPS fan unit because the Mad thrust won't fit into my CS 90mm fan
http://www.hobbyking.com/hobbyking/s...dproduct=28370

However I've just seen this :

Turnigy SK3 Fandrive Brushless EDF Motor - 3968-1500KV (8S 90mm EDF)
http://www.hobbyking.com/hobbyking/s...dproduct=28503

It looks like this might actually fit into my CS90mm unit. What's your thoughts on these two options for 7S? go with the cheap SK3 with CS90mm fan, or go all out with the Madthrust setup.

Help very much appreciated.
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Old Mar 07, 2013, 06:44 PM
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And another choice-

http://www.hobbyking.com/hobbyking/s...dProduct=17698
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Old Mar 07, 2013, 06:56 PM
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Originally Posted by mray View Post
I think that one is only rated for 6s though?
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Old Mar 07, 2013, 07:16 PM
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Their listed Volts spec is generally irrelevant. eg that will do 7S and even 8S fine. (too high volts/RPM on 8S in a CS12 though).
But that XK is a weaker motor than the Fandrive.

7S in a CS12 you want 1400 - 1500kv
So that Fandrive is a great choice.. and 8mm shaft, which is good too. Grab that and the CS12.... BUT get the CS12 from X-flight!!

I am getting one of those Fandrives - though also well as the two Dr Mads (1200kv and 1620kv). 1200kv for 8S, but 1620kv for 6s, all for CS12.... 1500kv I will use for 7S (or 6S maybe too) in a CS12

The Lander units are far too heavy.
Another possible fan combo is the Lander 12 blade rotor ($14) put into a CS12 housing. I have so many things here I can't remember what fits what for sure! I have to check, but I am pretty sure the Lander fits the CS12. Though I also want to run that up (if it fits ok) and be sure the power levels are ok too - some rotors don't like some housing stators.

But if you get the X-Flight CS12 it is the stronger rotor version anyway, so that would be fine as a whole unit.
Plus the Fandrive fits straight in.
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Old Mar 07, 2013, 07:39 PM
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Marton, New Zealand
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Thanks very much, have ordered the fandrive and will stick it in the CS90 unit which I've already got.

So many things to do on my Hun but I don't want to start sticking bits together until I have the power system sorted.

Then I have an issue of batteries. Currently have:

Nano Tech 4s 4000mah 35c ~ 70c
Nano Tech 3s 2200mah 35c ~ 70c (x2)

I'm thinking about hooking the 2200's together in parallel to make a 3s 4400, then hooking that up in series to make a 7S 4000. But not sure how dodgy that might be, it seems to work when I plugged it into the watt meter.
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Old Mar 07, 2013, 08:11 PM
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hehe, technically would work fine, so that is ok.. But is getting all a bit clunky.
Luckily the F-100 has tons of room!
I guess that could even give you very flexible CofG placements too!
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Old Apr 01, 2013, 04:51 AM
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France, Burgandy, Dijon
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ARC 3675-1 with MIDI PRO EXTREME ALLOY 90mm

Quote:
Originally Posted by Hussler View Post
What power will you use?
The Dionysus F100 is absolutely beautiful !!

Hello Hussler

The engine will be an ARC 3675-1 on 8S 5000 with MIDI PRO EXTREME ALLOY 90mm and Turnigy dlux OPTO HV 6~12S 120A - it done the thrust for 4.4Kg - 2903W -
- weight of my F100 will be approximately 4.7Kg ! - so 136 gr/dm2 and 275W/lbs
I have a paved runway of 270 feets - I hope it 's good !?

MADISONMaster
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Old Apr 01, 2013, 05:20 AM
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Heavy! But it should actually fly great!
It has tons of lift..... it is a BIG plane for its peer group size..... you have plenty of power .... and you have the space to take-off and land it!! So it should be very good really!
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Old Apr 01, 2013, 09:31 AM
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United States, TX, Grand Prairie
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Quote:
Originally Posted by MADISONMaster View Post
The Dionysus F100 is absolutely beautiful !!

Hello Hussler

The engine will be an ARC 3675-1 on 8S 5000 with MIDI PRO EXTREME ALLOY 90mm and Turnigy dlux OPTO HV 6~12S 120A - it done the thrust for 4.4Kg - 2903W -
- weight of my F100 will be approximately 4.7Kg ! - so 136 gr/dm2 and 275W/lbs
I have a paved runway of 270 feets - I hope it 's good !?

MADISONMaster
Open up the cheater a bit and you'll feel every gram of that 4.4kg from the midi
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Old Apr 01, 2013, 10:22 AM
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Open up the cheater a bit for F100

Quote:
Originally Posted by erh7771 View Post
Open up the cheater a bit and you'll feel every gram of that 4.4kg from the midi
PeterVRC Heavy! But it should actually fly great!
It has tons of lift..... it is a BIG plane for its peer group size..... you have plenty of power .... and you have the space to take-off and land it!! So it should be very good really!
Thank's all

Yes i open up the cheater like this ....to avoid overheating of the engine and ESC
I do not know the fiability of the ESC TURNIGY 120HV on 8S with 100A ..... I hope it will not burn !

MADISONMaster
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Last edited by MADISONMaster; Apr 01, 2013 at 11:06 AM.
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Old Apr 01, 2013, 07:23 PM
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Marton, New Zealand
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Regarding the cheater hole. I've been thinking about filling mine up and creating a new cheater just in front of where the real gear doors are. It looks like the current cheater hole is almost filled up once the landing gear is retracted. Filling this area in would also allow for the proper front gear door setup.

I think this would make it look a bit better, the only problem is that if you install an airbrake - deploying it would in theory divert all air away from the cheater.

Not sure I've got the cajones to try this sort of tweaking though as I'm already adding lots of other bits. I guess it would require some serious testing with both options.

Will post some progress pics soon.
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Old Apr 01, 2013, 08:45 PM
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Airbrake down.... unlikely to need a cheater! LOL

The 'wheel blocking' one.... yes, probably on higher power systems - not sure at what crossover power point - but probably not important in lower power setups. Take-off, wheel is down and cheater is fully clear.... in flight the cheater not needed as much.
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Old Apr 01, 2013, 08:51 PM
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Nice ideas Savvy!!!!
Did you hinge the rudder at the radius point of the balsa 'rounding'? Pics are a bit hard to tell, but I think so.
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