HobbyKing.com New Products Flash Sale
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Old Mar 06, 2012, 02:25 AM
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LOL!

Sorry Steve C to cause confusion, I was actually refering to the other Steve aka heliclown!
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Last edited by Peter M; Mar 06, 2012 at 04:31 AM.
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Old Mar 06, 2012, 02:48 AM
Carbon fiber is our friend
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United States, CA, Lodi
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Oops, sorry

I'm just looking at 5s batteries. 2650's are probably about right, or 65c 2250's, but those cost quite a bit.
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Old Mar 06, 2012, 04:30 AM
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Steve C,
I've been using Turnigy 30 or 40C batteries for testing and trying out new things because they are cheap, available quickly here locally and have been holding OK voltage under load. ( I note one of the regular and usually very critical F5B RCGroupers have found these cells perform as well as the 65C TP but they had to resolder the tabs to handle the 250+amp loading. Admitedly the TP's are ready to go straight out of the box without modification.)

Best bit is that if my great idea doesn't perform as hoped or the battery just plain doesn't fit, I don't feel like I've wasted too much money!

Please post your 5 cell logs!

Thanks
Peter
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Old Mar 06, 2012, 04:39 AM
Crashing into the sky!
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Auckland NZ
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Id hazard a guess and say some of the turnigy 30C cells are good some are absolutely terrible.

I have 3 near new 30C 1800 2S, in a 200W pylon racer, 27A at full load static. If I go full throttle, and then put in full aileron, the LV alarm kicks off! They also dont hold balance at all, probably the worst lipos ive ever bought

http://www.hobbyking.com/hobbyking/s...idProduct=9368

5 star my ass
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Old Mar 06, 2012, 05:02 AM
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Jacko,
You mean a score of: (__!__) (__!__) (__!__) (__!__) (__!__)
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Old Mar 10, 2012, 05:27 AM
never mind the boll⁣⁣⁣ocks
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Australia, NSW
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why would you not use nanotech? seriously they are freaking nuts and cheap as chips.
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Old Mar 10, 2012, 03:29 PM
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Nano's are what I normally use but because they come from OS, there is usually a two week delivery delay.

I've been using the locally available Turnigy 30C's for experimenting with different sizes since they are cheap and in my letterbox within 3 days.

I actually had my first Turnigy battery failure yesterday when a track on the battery circuit board melted/cracked, causing my Plasma to lose all power and land ungracefully into the swamp! Fortunately no damaged and I've repaired the battery by soldering on a copper wire "jumper".

The weather looks good today so off to do some more "testing" right now!

See ya!
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Old Mar 12, 2012, 03:33 PM
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F5D Folders

More updates: http://www.rcgroups.com/forums/showp...3&postcount=12
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Old Mar 13, 2012, 05:47 PM
Carbon fiber is our friend
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United States, CA, Lodi
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Good info Peter.
Looks like we'll have lots of options soon.
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Old Mar 18, 2012, 12:20 AM
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More updates: http://www.rcgroups.com/forums/showp...3&postcount=12
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Old Mar 24, 2012, 04:17 PM
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I'm always impressed with Mreyello's advice.

Here is a recent post that I found interesting. Not necessarily about geared folder setups, but worthwhile advice on where to spend your money for best effect for budding speedsters: http://www.rcgroups.com/forums/showp...9&postcount=75
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Old Apr 03, 2012, 05:30 AM
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More updates: http://www.rcgroups.com/forums/showp...3&postcount=12

Admittedly small but will be significant.
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Old Apr 05, 2012, 07:57 PM
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I've Been Wondering......

I've been wondering how you could run the GM 10x23 blades on a 3100 or higher kV motor with 5.2:1 gearing for a minute continuously and not melt down the motor.

Since no one seems to provide much in the way details for these setups I've been planning on buying my own set to test out.

However a reliable source bought one recently and had this to say:
" I just measured the props from Bulgaria........ Pitch on the blade decreases rapidly to the hub, at 50mm out from center it has only 12” pitch on a 23” pitch prop, surely this must mean they would be flying at large negative angle to the airflow at speed, also the tip pitch reduces a lot, the 23” is only seen for about 5mm of the blade."

Consequently I've stopped waiting for them to come into stock at SUSA and will have to consider a ajaeromodels setup, just use my Koch blades or will wait for something else to come along.....

EDIT 17 April 2012 - Got a second opinion on the GM 10x23's : "...... it's not a great design in that the pitch distribution is unusual. In fact the prop performs more like a 10x21 and drains the battery like a 12x26..."
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Old Apr 06, 2012, 05:24 PM
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Current State of the Art - Sawtooth Props

Hunting around indicates that not much appears to have progressed beyond the improvements that Paul S and Co made in 2011. You will recall the blades from the 2010 Muncie WC's used a conventional spinner and blade roots.

I know others have tested similar blades but no one appears to have jumped to the head of desirability queue!
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Last edited by Peter M; Apr 07, 2012 at 04:56 PM.
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Old Apr 06, 2012, 07:22 PM
never mind the boll⁣⁣⁣ocks
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Australia, NSW
Joined Dec 2010
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wow that thing looks EVIL!

i want one! lol
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