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Old Aug 04, 2012, 07:30 PM
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buffalo n.y.
Joined Jul 2009
79 Posts
The side lunch is ok ,you be right on the mark
Your way just worries me ,{ missing fingers }
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Old Aug 15, 2012, 11:22 AM
Registered User
Reunion
Joined Nov 2010
75 Posts
Hello Xeno fans and friends
Maiden flight today, successfull. Launching method : transmitter in right hand, mode 2 (elevons right stick, gas left stick). Gas between 2/3 and 3/4, left hand holds the plane as far as possible from the body, and as horizontal as possible. One quarter of circle of the full body, and there it goes. Your right hand is "elevon ready" and you have plenty of time to go to the gas stick.
Setting : all Multiplex, not-tuning power set and two "Tiny" servos, battery 3S 1200.
Nice flight, very stable and predictable.
No regret! And many thanks to you all for your helpful treads.
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Old Aug 16, 2012, 05:57 AM
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buffalo n.y.
Joined Jul 2009
79 Posts
Great to hear about your flight.i"m going to fly today
I use my right hand to throw , but I"ll try my left hand
Did you get any kind of wobble. ?????
My seem smooth and straight ,but other people talk about a wobble
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Old Aug 16, 2012, 07:30 AM
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Reunion
Joined Nov 2010
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Coming back from my dictionnary (for wobble) ... No wobble at all, at any speed.
Have a good flight !
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Old Aug 16, 2012, 09:19 PM
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buffalo n.y.
Joined Jul 2009
79 Posts
Flight was great,thru by the wing about 3/4 speed let it launch without
Throwing it hard jut release very. Nice and straight
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Old Aug 27, 2012, 12:41 PM
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lectroglide's Avatar
United States, WA, Puyallup
Joined Aug 2006
2,214 Posts
looking for info to make your own rear motor mount for this model, will be using an outrunner
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Old Aug 27, 2012, 01:18 PM
More Motors, More Fun... :-)
nioa's Avatar
Phoenix, AZ
Joined Jan 2008
692 Posts
Speaking of rear motor mounts, the rear motor shaft bearing has come loose from the plastic support on my stock power pod.

Does anyone have any experience with this problem?

I don't want to just "pop" it back in, as I don't trust the original plastic piece to hold it. I am thinking of contacting Multiplex/USA, but I wanted to know what experiences this group may have.

I see Tower sells the pod covers, but the plastic front and back (bearing holder) as replacement parts are nowhere to be seen except in the very expensive power tuning set.

Name: Xeno-ThY7kik.gif
Views: 110
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Description: Parts that appear to need to be replaced when replacing the rear motor shaft bearing.

I think the original bearing is OK, and all I would need is the rear plastic support that the bearing sits in, but the way Multiplex has this built, it appears that all the items shown in the image above from the power set need to be replaced.

I would consider making my own power train. Thoughts?
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Old Aug 27, 2012, 02:58 PM
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United States, WA, Puyallup
Joined Aug 2006
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that shaft thing doesnt turn me on too much thats why am looking for an alternative motor mount.....am thinking all I gotta do is get the thrust and CG right
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Last edited by lectroglide; Aug 27, 2012 at 04:00 PM.
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Old Aug 27, 2012, 03:03 PM
Diverted by planks
tracknoob's Avatar
South Florida
Joined Dec 2010
5,162 Posts
Is anyone actually slope soaring one of these?

I built mine as a slope soarer, and for it's maiden, decided to just see how it glides the other day on a relatively calm day. In only about 3-5mph wind, I hand launched it, and it glided okay, but not very far! About fifteen yards, max.

So I wonder if I first need to read some "Intro to slope soaring 101 for Dummys", and secondly if I need to also set it up with more weight for ballast, or otherwise do things to make it work well, other than just wait for 'big wind' like 15mph or so we get every now and then, coming right in from the south, up our hill.

Thanks in advance!
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Old Sep 02, 2012, 01:37 AM
Registered User
Vienna, Austria
Joined Apr 2007
2,025 Posts
Xeno as a sloper...

In my opinion the Xeno is only ok as a sloper, but not particularly good.
It seems to like medium winds best - if winds are too light it will be difficult
to keep it in the air (it's heavy, even if you just add the weight needed to
get CG right), and it will have the pronounced wagging, especially in turbulent
conditions.
But still I like to take it on some holidays because it is big enough to see and
fly in a scenic area, and still doesn't take much space when folded...

Here's some flying in weaker winds, sometimes necessitating to put the motor
on (lightweight pusher pod I constructed, adds almost no weight)

Xeno soaring Gran Canaria 2012 (7 min 48 sec)


Here's on one of our slopes at home, in strong wind, had to add weight
otherwiise it wouldn't penetrate the wind, however the airfoil does
not seem all too efficient. Aerobatics usually upset the balance and a
lot of wagging results. Sorry for the quality:

Xeno sloping strong wind Stetten 14 may 2011 (1 min 18 sec)


To sum it up: I like the Xeno because of the folding, the looks and the size,
best flown in medium wind, not turbulent, and offering good lift. Tall order.
For weight I would recommend to just add a RX pack or such to obtain CG,
and only add more weight if the wind is really strong. Doing hectic aerobatics
it doesn't like, smooth flying will reduce the wag. Enlarging fins would be
beneficial.
Performance-wise the Weasel of dreamflight is a much better plane, both
in weak and strong conditions. But the Xeno has more presence in the
mountains when you want to be flying further away, and not just do in-your-face
aerobatics.

A youtube search will provide you with more slope videos...

PS: Had a lot of fun with the Weasel in scenic settings, too, this summer

Vernegues France slope soaring Weasel 2012 (9 min 17 sec)


cheers
Clemens
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Old Sep 02, 2012, 11:14 AM
Diverted by planks
tracknoob's Avatar
South Florida
Joined Dec 2010
5,162 Posts
Thanks so much for the extended answers, info and vids, Clemens!

I missed an opportunity to try the Xeno out on some steady 30 mph winds when the tropical storm recently came through, so now I think I'll just wait for a steady 12-17 day, and try her out then, using just the receiver pack for ballast to start.
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Old Sep 02, 2012, 11:54 AM
I'm a Registered User
Evansville, WI
Joined Dec 2006
3,689 Posts
I'm late to the Xeno party. Singe I don't have any pure gliders in my fleet yet, I want to try it as a pure glider first before building a power set for it. Problem is I don't have anywhere to slope from, and I'm not very good at finding lift yet with my other (powered) sailplane. Has anyone set up one of these as a bungee, high start, or DLG glider? If so, how did you go about it? Thanks for the info.
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Old Sep 03, 2012, 02:00 AM
Registered User
Florence, Italy
Joined Feb 2010
39 Posts
Quote:
Originally Posted by mopetista View Post
In my opinion the Xeno is only ok as a sloper, but not particularly good.
It seems to like medium winds best - if winds are too light it will be difficult
to keep it in the air (it's heavy, even if you just add the weight needed to
get CG right), and it will have the pronounced wagging, especially in turbulent
conditions.
But still I like to take it on some holidays because it is big enough to see and
fly in a scenic area, and still doesn't take much space when folded...

Here's some flying in weaker winds, sometimes necessitating to put the motor
on (lightweight pusher pod I constructed, adds almost no weight)

To sum it up: I like the Xeno because of the folding, the looks and the size,
best flown in medium wind, not turbulent, and offering good lift. Tall order.
For weight I would recommend to just add a RX pack or such to obtain CG,
and only add more weight if the wind is really strong. Doing hectic aerobatics
it doesn't like, smooth flying will reduce the wag. Enlarging fins would be
beneficial.
Performance-wise the Weasel of dreamflight is a much better plane, both
in weak and strong conditions. But the Xeno has more presence in the
mountains when you want to be flying further away, and not just do in-your-face
aerobatics.

A youtube search will provide you with more slope videos...


cheers
Clemens
Hy Clemens; I Agree with your thought about the xeno. Great videos!!!

Please can you tell us more about the lightweight pusher pod you built?
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Old Sep 03, 2012, 06:54 AM
Registered User
Vienna, Austria
Joined Apr 2007
2,025 Posts
Lightweight Pusher Pod

thx for the compliments - the pusher pod with a template for the lower part I
posted in #954 a couple of pages back
http://www.rcgroups.com/forums/showp...&postcount=954
I like it, but since the blades come very close to the canopy it is not as quiet
as a pusher could be. Very light though, and the weight is around the CG, and
the plane balances with just 2s 800mA lipos, good for flying in light winds and
not much lift

cheers
Clemens
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Old Sep 03, 2012, 07:40 AM
Registered User
Florence, Italy
Joined Feb 2010
39 Posts
Quote:
Originally Posted by mopetista View Post
Esthetically not the most convincing design but I wanted a motor solution which would be:

- adding little weight, and mostly arond the CG to keep the Xeno light (as far as a Xeno goes witht the heavy plastic parts and the dense foam...)

- running with my 2s KONION cells (safer than lipos; 2s configuration more economic when gliding because the BEC is converting less electricity into heat than with 3s) - and the KONIONS I should be getting on any airlplane for holidays (whereas airport controls might get nervous with lipos), and KONIONs are safer when taking the XENO on a mountain hiking trip

- quieter than any pusher setup due to tractor prop

All goals except for the reduced noise were achieved. I will try shortened blades on the old Graupner 6x3 folder (only mod: enlarged for 3mm from original 2,3mm hole to suit the shaft of the EMAX CF 2805 motor), there is not enough clearance between the prop and the canopy with 6x3.

Motor draws around 12A with fully charged batteries, that is the maximum for that type, and it's plenty for me since the motor is only to get me up for extended gliding, or help when the lift is not quite sufficient for slope soaring.

Here`s a video, keycam failure during sunny maiden, thereafter it got pretty dark. But you get an impression how this thing works, a bit of WOT flying is included. Windmilling prop produces unnecessary drag, I had to fix the blades because they might not unfold from certain positions. Will mount a bent wire on the right side that avoids folding on the right side. Will put some depron on the sides of the pod to make it look better.

For those wanting to build their own motor pod solution I include the PDF posted in a German forum by someone who put an EDF on his Xeno.
I just glued the blueprint on the plywood and guesstimated some upthrust - it seems to have be around correct. However the plywood is too feeble for the rear part of the mount so I secured it with a cable tie.


Video here:


cheers
Clemens
Great job Mopedista!
I like it, will try the same

I have some doubts

1. the plywood is 3mm?
2. How did you fix the motor to the plywood?
3. the pdf shape seems quite different from the photos you posted. Maybe some more detailed pictures of your jobe would help me
4. what about motor incidence?

Thanks!
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