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Old Aug 22, 2011, 01:21 AM
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GryphonRCU's Avatar
United States, CA, SF
Joined Mar 2008
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Jackie, Flyextreme,

Congratulations to both of you on your maiden flights.

Wish you both the very best.


MEGA motors rock!!!! And from what I have seen recently so do Yuri's X planes.


Gryphon
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Old Aug 22, 2011, 01:22 AM
Sure it'll work
Flyextreme's Avatar
United States, CA, Torrance
Joined Nov 2005
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Quote:
Originally Posted by jackosmeister View Post
16x17 prop? It looks faster than mine on the 14.5x14 (which is gutless as )
Yes, that was 16x17. The 14.5 x14 would be more fun 5S.

Just throw on the 16x17 with a 5S pack and go for it. Just get video...better than mine
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Old Aug 22, 2011, 01:25 AM
Crashing into the sky!
jackosmeister's Avatar
Auckland NZ
Joined Aug 2007
7,292 Posts
Time to bolt 16x17 on then! Was playing it safe for the maiden

Think I need to fly in front of my face for the contourHD to pick it up in resonable size (fish eye lens). Will keep it in mind for the next flight!
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Old Aug 22, 2011, 01:40 AM
Sure it'll work
Flyextreme's Avatar
United States, CA, Torrance
Joined Nov 2005
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Quote:
Originally Posted by jackosmeister View Post
Time to bolt 16x17 on then! Was playing it safe for the maiden

Think I need to fly in front of my face for the contourHD to pick it up in resonable size (fish eye lens). Will keep it in mind for the next flight!
I "was" going to play it safe and maiden on 3S, then thought...nah!

Just be very mindfull of the torque roll on launch...that is...if you leave your bungie at home.
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Old Aug 22, 2011, 01:54 AM
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Flyextreme,

Just saw your video and ONLY now I understand the Stryker reference.

Next top speed Stryker will be powered by a 22/80E motor.


Have fun guys,

Gryphon
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Old Aug 22, 2011, 03:51 AM
"The Judge"
sebbe's Avatar
Sweden
Joined Feb 2006
5,793 Posts
Bill, nice flying, pretty big torque on start, Ill keep that in mind for sure..
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Old Aug 22, 2011, 10:11 AM
One Idiot is plenty...
Dbox's Avatar
Planet Earth
Joined Jun 2005
5,156 Posts
Bill,great flying ,man!
I liked how You handled torgue roll on launch.
Just drop Your FEAR guys and grab the sticks ,thats the key.
...buy Your kids candy,or cigarettes depends on the age ,they did hard work keeping her in frame.
Thank You.
Yuri.
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Old Aug 22, 2011, 12:34 PM
Sure it'll work
Flyextreme's Avatar
United States, CA, Torrance
Joined Nov 2005
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Thanks Yuri, and thanks a million for a great plane.

I only borrowed my daughter's camera, that's why the settings were off, and my girls are already way over indulged anyway. It usually takes very good video. Russ, a flying buddy shot the video, and is very good at keeping planes in frame...thanks Russ.

Bill
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Old Aug 22, 2011, 03:34 PM
Livin it UP when Im goin DOWN
Arcteryxxx's Avatar
Norway, Telemark, Skien
Joined Feb 2010
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Props'n stuff

Parts for my project is being sent from all over, and today I received my prop and spinner. The ones I chose were HyperSpinner Power (Vladimir's Models, http://www.hyperflight.co.uk/product...for-5mm-shafts) and RASA 15x18.
I don't know how "popular" this combo is or even if it's tried before, but here are my first glance at the package:

The spinner was surprisingly clever. The yoke has a significant offset, but no twist. This will allow the prop to hug the fuselage closely in folded position, reducing drag in glide mode. The narrow spinner actually makes the 15x18 prop a 13.8x18 effective diameter and pitch prop... The second surprise - and the biggest, was that there were no threads or nuts in the hinge pins. The pin is hold in place by the cone itself - very clever!!!!

The prop was really a very tight fit! I had to grind some off the root of the propeller blades for them to fit - I would blame this on the handmade prop and not the spinner - but I also had to trim the cone opening in front of the yoke to allow for the blade to swing to it's full stretch + another 15 degrees of attack angle.

All in all I think it's an aggressive looking combination and I can't wait to see what it will do with the X-Plane at some 9-10K-ish rpm
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Old Aug 22, 2011, 04:25 PM
Livin it UP when Im goin DOWN
Arcteryxxx's Avatar
Norway, Telemark, Skien
Joined Feb 2010
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Calculations

My setup will initially be flown with a single 5S battery, but final goal is to fit 6S in a 2S-4S config.
I've done some calculations and would be glad to get corrections if I've entered wrong values...

Setup:
ARC 28-58-1 (3180kv)
KPG25 5.2:1
LiPo: Goal: 6S2200 High-C, Initially: GensACE 5S2200 30/60C
RASA 15x18 (13.9x18 effective as proved above)
P125 with Big George modification...

*Gotta love it when the eCalc states "Your setup is unrealistic and way out of limits..." - LOL*
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Old Aug 22, 2011, 11:00 PM
One Idiot is plenty...
Dbox's Avatar
Planet Earth
Joined Jun 2005
5,156 Posts
Quote:
Originally Posted by Arcteryxxx View Post

*Gotta love it when the eCalc states "Your setup is unrealistic and way out of limits..." - LOL*
When these words appear in my calculation,I know ,I just hit a jack pot.
All of my favorite set ups have power out with "negative" sign .
Here is Your plane with stab finished.
I'll do vipers in black ,if You dont mind.
Where did You get that prop from?
I really like Your prop/spinner combo.
Yuri.
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Old Aug 22, 2011, 11:29 PM
Crashing into the sky!
jackosmeister's Avatar
Auckland NZ
Joined Aug 2007
7,292 Posts
That is one cool looking prop! Blades look much wider than RFM slims.

Do RFM do a cranked centre 32mm spinner?
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Old Aug 22, 2011, 11:51 PM
Livin it UP when Im goin DOWN
Arcteryxxx's Avatar
Norway, Telemark, Skien
Joined Feb 2010
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Yuri - my X is beautiful!

Black wipers will be nice. Remember this will be a 4 servo wing, btw.

I got the prop from Plettenberg: http://www.plettenberg-motoren.com/UK/Zuebhoer.htm

Although it's listed at 40 Euro, once you order the price drops to 33. It was sent by FedEx for another 15 Euros.
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Old Aug 23, 2011, 12:21 AM
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Germany
Joined Jul 2010
485 Posts
Quote:
Originally Posted by Arcteryxxx View Post
My setup will initially be flown with a single 5S battery, but final goal is to fit 6S in a 2S-4S config.
I've done some calculations and would be glad to get corrections if I've entered wrong values...

Setup:
ARC 28-58-1 (3180kv)
KPG25 5.2:1
LiPo: Goal: 6S2200 High-C, Initially: GensACE 5S2200 30/60C
RASA 15x18 (13.9x18 effective as proved above)
P125 with Big George modification...

*Gotta love it when the eCalc states "Your setup is unrealistic and way out of limits..." - LOL*
Here is a log of my Hawk with very much the same setup, except that a 3000 5s battery was used. I think you will like it. It's post #1263. I bought my 15x18 from Plettenberg.
http://www.rc-network.de/forum/showt...=1#post2216463
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Old Aug 23, 2011, 12:37 AM
One Idiot is plenty...
Dbox's Avatar
Planet Earth
Joined Jun 2005
5,156 Posts
But Kwahn used 42mm spinner.
It is another 10mm of a prop span
Yuri.
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