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Old Jun 05, 2010, 09:53 PM
RIP Ric
Andy W's Avatar
Marietta, GA
Joined Jun 1999
43,312 Posts
Don't take this the wrong way, but that doesn't look like 1500W..
What's your RPM?
..a
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Old Jun 05, 2010, 10:07 PM
The Kid
Thekid3418's Avatar
Detroit, MI
Joined Dec 2007
2,585 Posts
Quote:
Originally Posted by Andy W View Post
Don't take this the wrong way, but that doesn't look like 1500W..
What's your RPM?
..a
You're right, its not over-whelmingly fast. It spins right around 8300 RPM. I think my pitch speed is just too low. That, combined with the slim prop means its not as quick as you might think. Also, keep in mind that mine weighs in at 1665g or 59oz, which I believe to be pretty heavy.

Vertically it won't blow you away. But it maintains a lot of energy due to the weight. Also it is very fast in the down lines.

Lastly, a couple things to consider

1) the video doesn't really do it justice. It is a very impressive plane.

2) the power system was designed around 6s, so more power will really make it shine.

3) Lastly, the motor is never run horizontally. So its never really allowed to gain speed. I suspect it is capable of 110-115mph in level flight, but I don't want to test this!

Kid
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Last edited by Thekid3418; Jun 05, 2010 at 10:41 PM.
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Old Jun 10, 2010, 11:33 PM
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nate 1001's Avatar
PA
Joined Jul 2003
103 Posts
Finally got my speed control back. Test flight went great. 3 seconds of motor is all that is needed to get up. The plane held up fine just have to fine tune somethings. There is a warp in the wing that hopefully I can get out, as the faster you go the more it turns. So confirmed that it will hold up to almost 2000watts.
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Old Jun 11, 2010, 12:19 AM
The Kid
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Detroit, MI
Joined Dec 2007
2,585 Posts
Hey Nate, congrats on getting your plane back in the air! That is always a relief!

Would there be any way for you to get an exact (or pretty close) reading of your power and your RPM? I would love to do a comparison between your 3s/outrunner and my 5s(6s)/inrunner...

Kid
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Old Jun 11, 2010, 04:03 PM
You down with EPP?
johnnyrocco123's Avatar
Houston, Tx
Joined May 2009
6,777 Posts
Got my Siren just about ready to again.

This time around I will use the same Rhino 4s 2150mah with a Turnigy 36mm 2000kv turning an APC 6x4 sport. A fixed apc prop with a 6" diameter should eliminate worries of firewall ripping out. I think this is a very safe setup for this airplane.

I will take video ASAP so you guys can see some 6" vs. 14" props.

I haven't done a bench test yet but I anticipate around 850 watts. Should be good for a relaxing flyer vs. my Flash II project that will be insane.
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Old Jun 12, 2010, 03:10 AM
You down with EPP?
johnnyrocco123's Avatar
Houston, Tx
Joined May 2009
6,777 Posts
After some bench tests, the APC 7x5 sport seems to be the sweet spot I was looking for.

976 watts
67 amps

Rhino 4S 2150mah 30C
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Old Jun 13, 2010, 06:46 PM
You down with EPP?
johnnyrocco123's Avatar
Houston, Tx
Joined May 2009
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wing repair?

Got it
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Last edited by johnnyrocco123; Jun 17, 2010 at 09:35 PM.
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Old Jun 13, 2010, 08:12 PM
The Kid
Thekid3418's Avatar
Detroit, MI
Joined Dec 2007
2,585 Posts
Maybe remove the covering from the top surface and either epoxy or CA glue the problem area. Then recover or cover in tape.

Just my .02

Kid
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Old Jun 13, 2010, 09:56 PM
You down with EPP?
johnnyrocco123's Avatar
Houston, Tx
Joined May 2009
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;0 -
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Old Jun 14, 2010, 03:05 PM
The Kid
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Detroit, MI
Joined Dec 2007
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Test completed on 6s. Everything held up to bursts at ~9000rpm. Should unload slightly in the air, and once it unstalls I believe the current will drop to more like 100A which should be about perfect!

Kid
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Old Jun 17, 2010, 09:36 PM
You down with EPP?
johnnyrocco123's Avatar
Houston, Tx
Joined May 2009
6,777 Posts
Evening flight June 16

Here is a quick 2 min video of my Siren taken yesterday.

Siren June 16.wmv (2 min 23 sec)
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Old Jun 17, 2010, 10:31 PM
September 2010
Outback Joe's Avatar
United States, OR, Lakeview
Joined Oct 2009
332 Posts
Nice Johnny, Looks like you have the plane dialed in better, sounds good too...
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Old Jun 19, 2010, 10:37 PM
USA: LakeGeorge, New York
USA
Joined May 2010
4,473 Posts
deleted....
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Old Jun 20, 2010, 06:35 AM
RIP Ric
Andy W's Avatar
Marietta, GA
Joined Jun 1999
43,312 Posts
That would be a pretty low-power system for a model like the siren..
..a
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Old Jun 20, 2010, 01:50 PM
USA: LakeGeorge, New York
USA
Joined May 2010
4,473 Posts
is there a PowerPackage combo deal for the Siren?
(esc, brushless motor, prop....etc.....)

what site sells them?

thank you.
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