Lumenier RB2205C-12 2400KV SKITZO Ceramic Bearing Motor
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Old Dec 06, 2012, 04:07 PM
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Gravity is patient............
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Originally Posted by tracknoob View Post
Here are pictures of my skegs -- don't have anything on the wire-tie method.
Very nice. I'll post some pics of what I did tonight when I get home....

but now that I see what you did I am stealing it!
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Old Dec 06, 2012, 07:49 PM
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Diverted by planks
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Originally Posted by billyd60 View Post
...now that I see what you did I am stealing it!
heh heh Have at it! You are merely following along in a rich hobby tradition!

Old Dec 06, 2012, 09:15 PM
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Here's the shots of what I did for servo protection with tie-wrap sections.
Old Jan 01, 2013, 02:12 PM
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Blue Wonder... Yes!!


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Originally Posted by renatoa View Post
I mean simpler to find the angle.
I think it's easier to measure an angle of two long lines, than two shorter.
And yes, this is the true downtrust angle, by definition. Me I wouldn't be absolutely certain only visually that the vertical line is absolutely perpendicular on the wing chord.
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Originally Posted by Bugman Jeff View Post
Feel free, I stole it myself
I just finished reading the whol d*** thread and was thinking along the same lines as Jeff. I just got into sloping last fall with a Speedo Mk II. One of the guys in our crew had a powered model for hunting lift before we launched our powerless slopers on the light breeze. I was considering whether to add the Mpx power pack for this hunting task.... and it seems heavy expensive and unrefined. I have had great results with the 24g Blue Wonders on 3s 500ma at 1200 kv and now stock them!!! I wondered about adding 75 g to the base Xeno and sense this is Ok for you, Jeff. Flying "on the wing " it will climb... Thank you for posting all the info and I will continue the unbroken chain of "stealing "..!!! One question.... why 3000 kv?! Was that necessary for the limited prop selection, the clearance the 2s or .....you had one one the bench?
Last edited by Waterbug; Jan 01, 2013 at 02:32 PM. Reason: Sloping is pretty cool esp. for a sloper design... need a slope though!
Old Jan 01, 2013, 02:25 PM
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PS half the planes there at the slope were Xenos and Allulas with no motor and they flew great from 15 to 30 mph winds. At 35 they were getting a bit trickier to control. Below 15 you better not screw up because our 400 ft sand slope is virtually unhikeable. I have seen young people stop to puke trying to hike up this huge dune.

http://www.youtube.com/watch?feature...&v=IwClA4Rv3kw
Last edited by Waterbug; Jan 05, 2013 at 12:02 PM. Reason: video link
Old Jan 01, 2013, 03:18 PM
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Pic of the dune at Sleeping Bear NP


I just want light air back up power when I soar here.....
Jealous? I would be!!!!
Old Jan 01, 2013, 04:51 PM
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One question.... why 3000 kv?! Was that necessary for the limited prop selection, the clearance the 2s or .....you had one one the bench?
I didn't want to order anything and it's what I had handy at the time
Old Jan 02, 2013, 10:14 PM
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Hello all. I picked up a couple of these over the summer and have spent the last week or so reading over this thread. I assembled one set up completely stock with a couple of Power HDmg 1711's for control and a 1300mah battery. Maidened it today. Cold and calm, partly sunny. Launched power off without incedent. Man this guy can glide. I haven't ever flown a wing unless you consider a Stryker. Very gracefull and can fly very slow. I think the best way to land this is to catch it. That will keep down the scuffs and broken servo arms!
Thanks for all of the info. I feel I have another great airplane for the not so flyable winter weather.
Jay
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Old Jan 04, 2013, 11:47 AM
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Gravity is patient............
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Originally Posted by Waterbug View Post
I just finished reading the whol d*** thread and was thinking along the same lines as Jeff. I just got into sloping last fall with a Speedo Mk II. One of the guys in our crew had a powered model for hunting lift before we launched our powerless slopers on the light breeze. I was considering whether to add the Mpx power pack for this hunting task.... and it seems heavy expensive and unrefined. I have had great results with the 24g Blue Wonders on 3s 500ma at 1200 kv and now stock them!!! I wondered about adding 75 g to the base Xeno and sense this is Ok for you, Jeff. Flying "on the wing " it will climb... Thank you for posting all the info and I will continue the unbroken chain of "stealing "..!!! One question.... why 3000 kv?! Was that necessary for the limited prop selection, the clearance the 2s or .....you had one one the bench?
The only negative with putting the motor back there is getting a good cg. My Xeno took a fair amount of weight in the nose to get the cg right with the stock motor location. With the motor back there it's going to take alot more I would guess. And I have the battery as far forward as it can go without modding the canopy or foam.
Old Jan 05, 2013, 10:09 AM
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what did your motor weigh, billy?
the HK blue wonders only weigh 24g (<1 oz) but can pump 100W at 3 S.

If you get a lighter motor and move it forward like Jeff Bugman did you could maybe use a lot less weight. Thats my goal.
From one of the mods posted I think I need 3-4x the rear mounted motor weight up front for balance. The battery should do most of that. Light prop would be good, too!
Last edited by Waterbug; Jan 05, 2013 at 11:59 AM. Reason: spelling
Old Jan 05, 2013, 06:58 PM
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Bad day!

Is there an issue with flying these inverted?

On the first and second flight I didn't notice any bad tendencies. Today, well......
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Old Jan 06, 2013, 11:38 AM
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Originally Posted by Fentonflyers View Post
Bad day!

Is there an issue with flying these inverted?

On the first and second flight I didn't notice any bad tendencies. Today, well......
Sorry to see it. Perhaps your battery shifted or mechanical failure? Or did you dumb thumb it?
Old Jan 06, 2013, 11:45 AM
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Originally Posted by Waterbug View Post
what did your motor weigh, billy?
the HK blue wonders only weigh 24g (<1 oz) but can pump 100W at 3 S.

If you get a lighter motor and move it forward like Jeff Bugman did you could maybe use a lot less weight. Thats my goal.
From one of the mods posted I think I need 3-4x the rear mounted motor weight up front for balance. The battery should do most of that. Light prop would be good, too!
I copied the multiplex power pack for the Xeno, but I bought the parts seperately, it's cheaper. Crazy but true. Anyway it's the Himax 2816-1220. It's 79 grams but it's 200 watts.
Old Jan 06, 2013, 12:01 PM
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Originally Posted by billyd60 View Post
Sorry to see it. Perhaps your battery shifted or mechanical failure? Or did you dumb thumb it?
I asked a couple of other flyers to launch it for me so that I could use my transmitter glove. Finally got airborne after a couple of less than perfect launches. I am thinking that perhaps the control horns became partially dislodged from those attempts. The dumb thumb part was not reacting quick enough and rolling out to pull up. I wasn't having a "good flying day" yesterday if you know what I mean. Earlier flights with other models ended up haping close calls. I guess I should have quite while I was ahead.
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Old Jan 11, 2013, 06:29 AM
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Quote:
Originally Posted by Fentonflyers View Post
Is there an issue with flying these inverted?
Just the mechanical problems which are apparent. Inverted the whole mechanism just holds by the small plastic parts of the cover. With the leverage force proportions it is evident that it will not hold much.
In normal flight the forces just press the halves together.

And it seems to be cold at your place which also weakens the parts.

RK


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