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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/20/2008 8:58 AM   
Thinn


 

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From: Vestby, NORWAY
Status: offline 		More pictures..
To ease wing assembly, I soldered all the servo cables onto a MPX-connector. Much less hazzle! (Still struggeling with those wing bolts though..).
I marked up the 2 CG positions and taped over with "Crystal" tape.. CG is spot on in between the marks!
Battery was placed under the UC plate. I put in a thick padding to prevent the UC bolts to damage the battery. Cable ties holds the battery in position.
Always hide your antenna.... I found a good spot to take it out of the fuse and taped it to the side all the way to the back. Looks quite nice.
Of course, I padded the reciever before I called it the day.

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/20/2008 10:08 AM   
Rune


 

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Status: offline 		looking good audun!

My 63 needed some seriose break inn before I was happy with it ..still some adjustment before its really nice , but its wery powerful and my Helios 63 at 2550 gr is no problem with a 13x6 apc sport.


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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/20/2008 11:36 AM   
Thinn


 

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Status: offline 		Thank you Rune!
Using my beloved fishing weight, the plane landed on 2550g. I will double check using a digital weight one day, but it is in the ball-park anyway.
Thanks for the tip regarding run-in time. I still haven't fired up the engine, so it might be time for some noise one afternoon...

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/20/2008 1:07 PM   
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Status: offline 		mine got almost 4 tanks (1,2 l) fuel before I feelt it was ok.You could almost feel that it was to tight if you understand..


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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/23/2008 8:03 PM   
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The bird has now been airborne!
I spent Friday evening running in the Ys63, and let 6 full tanks of fuel run through the engine on a very rich setting (3,5 turns).
I won 4 buckets of Byron 20/20 Synth Ys-fuel this summer, so this will be my main supply for this engine this winter.

For the run-in, I used an old Master Airscrew 12x8 prop.. (Too late to visit the store for supplies). Usually, I use these props for mixing epoxy, and after this test that will be the sole use for Mater Airscrew for my sake.. Not really impressed to say the least..

Pictures from the run-in (-2deg C, so I put the model inside my barn..).


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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/23/2008 8:39 PM   
Thinn


 

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From: Vestby, NORWAY
Status: offline 		…and then the maiden…

I was supposed to try the model yesterday, but harsh winds and sub-zero temps delayed the flight.
Today was excellent.. Just enough hung over from a party yesterday, blue skies, and not as much as a hint of wind! The grass on my airfield was a bit long, but who needs to tax the model anyway?
Temps were still below zero, but we do not really need to feel our fingers do we?

I bought an APC 13x6 yesterday which worked slightly better than the Master Airscrew..

Full tank, fully charged, start engine and off we went!
(As the pics shows, I was accompanied by a couple of 9-11 year old cheerleaders!)

The Osmose took off beautifully. Nice and clean. 2 Clicks on the ailerons, none for elevator and 4 on the rudder. I noticed right away that I need more right thrust on the engine! Also, I found out that although the CG is “Spot on” between the recommended positions, it is way too nose heavy for me. It really dives in inverted flight.
It does not need any mix in knife edge, and that rudder is violent!
After the first flight I put in some more aileron movement, leaned the engine a bit and put in a bit more expo on the elevator.
2nd flight was put through the P09 programme.. Not too nice, but it worked. Spin entry was a laugh, as it just sort of fell through the sky… Possibly because of the nose heavy plane?
The snap was very fast with my settings, and it took an extra ½ turn before I could react…
It tended to really work its way to the left in all top vertical manoeuvres, but I’m guessing a bit of tweaking on side thrust will sort this out, at least to some extent.

The plane is quite fast using the 13x6 APC. Also, the gliding speed is quite formidable.. I was lucky the grass was long so I could “hit the brakes”!

All in all this is a solid, well built F3A trainer. My 3 flights today left me with a good feeling that I had an aircraft with potential. I will have to work a bit more on side thrust and CG, but that is quite normal.
Also, this is a small plane compared to my 2x2meters… It would be unfair to compare the flight characteristics. Big planes fly better.
But for a smaller, easy to transport, no fuzz winter trainer, I think I’ll enjoy this one!

More updates might come….

No in-flight pictures or video unfortunately, as I was alone on the airstrip, just accompanied by the two cheerleaders… It got too cold for them too, so they left after the 2nd flight…


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< Message edited by Thinn -- 11/23/2008 8:45 PM >

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/23/2008 8:41 PM   
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Status: offline 		More maiden photos...

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/23/2008 9:12 PM   
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Status: offline 		Nice pics Audun. I had to bring with me my new Acro 50 from Kangke so i could made my maiden out in the countryside. Was almost out the door today with my electric Extra to make some flights at Furuset but my girfriend was knocking on my door so no flight today.

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/25/2008 4:16 PM   
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Congrats. This was fun following your build thread. Especially when purchasing the same plane and tracking the ground breaking builder's efforts each step of the way. I have to say rcuniverse has some wonderful people contributing to our hobby, you being one of them.
I have to let you know I am using my Saito 82 and Saito engine mount with it's bench mark prop, an APC 13 x 8 and a VP-20 Perry 4-stroke pump with the fuel tank on center. I had to buy 4 x 40mm cap head screw bolts for the wheel pant installation as the supplied bolts were too short to install per the manual. I drilled and installed the pants similar to the GP U-Can-Do 46. I am also using a 6 volt, 1200 mAh battery pack with regulator.
If you have any corrections or ideas for my Osmose 70 adventure, they would be greatly appreciated.

Again Thanks for sharing your experience
Bob

P.S.
Did you happen to notice the Kyosho site, mine being Kyosho of America, the pictures of the rudder and elevator servo install?

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/26/2008 8:40 AM   
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Status: offline 		Brickhead; Thank you for those kind words!
I too really enjoy all the help I get from this forum! There always seems to be someone with a good idea or solution to a problem!

I do not have any experience with the Saito engine, but I do belive it will be a good choice, especially with that Perry pump. It might be slightly heavier than the Ys63/Os55, but that should be OK. Just keep the wight in mind in other areas..
The wheel-pant installation was a bit of "fiddeling", but all parts fit perfectly on mine. I used double sided tape to secure them from twisting. Not a rugid solution, but most adequate. (I've seen silicone being used as well).I have now moved my battery pack under my reciever, but have not had the chance to test-fly yet. I'm also hoping to alter the right thrust prior to a new test flight. I'm guessing 1-1,5deg should be enough.
Thanks for the info from the Kyosho site! Funny to see that they too are using a corbon fibre pushrod for elevator control instead of the supplied wooden "stick"...

Good luck on your build, and keep those pictures coming

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/26/2008 10:46 PM   
Thinn


 

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Status: offline 		We just had a small Pattern-gathering at home, and a fellow modeller brought his Kyosho Oxalys along...
(We also had an Addiction, GoodShot, Helios, Venus II and a ZN Integral in the room!)
Thought I could share some photos of the two "sisters"! As you can see, there are in fact quite a few differences like the length of the nose, height of the fuse, size of the fin and stab etc..
Sorry for the poor quality photos. Bad lighting!

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< Message edited by Thinn -- 11/26/2008 10:50 PM >

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 11/26/2008 10:48 PM   
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Status: offline 		More photos...

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 1/31/2009 4:38 PM   
Brickhead


 

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quote:

Also, I found out that although the CG is “Spot on” between the recommended positions, it is way too nose heavy for me. It really dives in inverted flight. It tended to really work its way to the left in all top vertical manoeuvres, but I’m guessing a bit of tweaking on side thrust will sort this out, at least to some extent.


When I read your flight report, I had to think, maybe I should put the fuel tank center on the center of gravity. What do you think?

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 2/1/2009 1:22 AM   
PatternFlyer



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Status: offline 		I still haven't had a chance to build my Osmose. Way too many Pattern planes to build (3 of 2m : 2 ARF and 1 glass kit, 2 of 90 size ARFs, 1 of 90 size to repair/modify)
It is always better to have the fuel tank on CG if possible (engine plumbing should be good. Pump/regulator equipped?)

Anyone has video on Osmose?


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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 2/1/2009 7:39 PM   
Thinn


 

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Status: offline 		Brickhead;
Yes, I would place the tank as close to the CG as possible. I could have placed mine a bit further back...

PatternFlyer; With the Ys, the long fuel lines are no problem. I would recommend a pumped solution on other engine choices if the tank is placed far aft.

I was out on the ice on a local rc-meet yesturday, and got 3 nice, cold flights.. At temps 7-8 below freezing I did not even manage to complete the P09 schedule before my fingers got too numb to fly..
With the Ys running on 30/20 nitro/synthetic, I still had a really hard time starting it in this cold weather. Also, I did not really get to adjust it propaply due to the cold weather.
But the plane performed well, and I'm still happy!
My 1,5year old son joined me for an hour on the ice, but he was a bit more interested in his "sledge" than in my plane....

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 2/1/2009 10:11 PM   
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Thanks for the wonderful pictures. They look exactly where I live. Snow, ice, cold weather gear. Yes sir, same thing. When I am done with the Osmose 70, I will have to put the finished equipment bay pictures here.

Again Thank You

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 2/1/2009 10:41 PM   
PatternFlyer



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Status: offline 		Thinn,

Nice pictures. My area is a little too warm to have a frozen lake or any ice that last more than a few days. I used to ice fish a lot before moving to Dorothy's land.

Anyway, I've got a question for you. What is the largest diameter prop that you can mount on the Osmose with stock gear?

I am thinking about converting to Electric setup and several local guys also. I do use YS on most of my pattern planes.

Thanks,

IP


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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 2/10/2009 8:27 AM   
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quote:

ORIGINAL: PatternFlyer

....
Anyway, I've got a question for you. What is the largest diameter prop that you can mount on the Osmose with stock gear?
...


PatternFlyer; I'm dreaming about warmer weather... We had -17C yesturday together with approx a meter of snow, so flying is out of the question!
Sorry for the insane slow answer, but now I've measured... Had to dig my way into the hobbybarn first

1. Distance from centre axle to ground when standing on all 3 wheels: 24cm (9,45 inches)
2. Distance from centre axle to ground with stab level: 22cm (8,66inches)

(Center axle is measured from the prop-hub base).

Given these measurements, my guess is that max prop dia should not exceed 15-16inches (or you'll be cutting more grass/gravel/pavement than you really want!). If that is not enough (don't know anything about these non-gassers....), try a multi-blade prop...

Hope this helps!

Audun

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 2/22/2009 7:09 PM   
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What did or how did you attach your canopy that is working so well especially in the cold weather?

Bob

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 2/24/2009 3:12 PM   
Thinn


 

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Status: offline 		Hello Bob,

I'm using Scotch Crystal Tape for canopy fastening, antenna, field repairs, etc etc... Brilliant tape that is invisible, long lasting and strong.
https://www.totalofficesupplies.co.uk/catalog/images/798536.jpg

I get in in packs of 4 at my local grocery store! Costs next to nothing, and is also available in a "boxed" version (although you will get "jagged" ends from the box which are no good..).
http://www.officebuy.co.nz/data/Images/Items/15/1521%20Tape%20and%20Dispensers/scotch%20crystal%20clear%20tape%20with%20diapensar.jpg


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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 2/25/2009 8:12 PM   
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Thanks. I knew to ask. That is a wondeful idea. Everyone I know is using canopy glue or epoxy or screws. Some are using pin stripping tape. This is a good idea. I am going with it.
Again and Always Thank You
Bob

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 2/28/2009 11:01 PM   
Thinn


 

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Status: offline 		Just a little update...
It is now cold and SNOWY, and I didn't think I had anywhere to fly... Until I saw the cat walking on the snow.. It does not hold me, nor larger planes, but it barely holds the Osmose with full power
As you can see, landing is a bit tricky.. When it speeds down, it sort of falls through. Oh well.
4 beautiful flights today, in blue skies, no winds, and just -5 in the shade. I just had to go for one cold walk to get my plane! PS; look at the long take-off tracks... We're talking snow-friction!

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 4/11/2009 9:46 AM   
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Status: offline 		Whohoo! Just received mine! Superb quality, some wrinkrles and same small problem on rudder (yellow line is wrong) But overall perfect. Os 70 Ultimate going in it. I'll post pics as soon as i'm done!

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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 5/11/2009 9:04 AM   
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From: RigaVidzeme, LATVIA
Status: offline 		Oops, forgot that I promised to post pics- I enjoyed flying this plane so much, that everything vent out of my head
My setup:
AR 500
JR DS 589
OS FS 70 Ultimate with custom made header to fit under the plane
1500 NiMh JR battery.
I changed most of clevises to metal ones, and replaced all pushrods with carbon.
RTF plane weight is 2460g without fuel, but with 5 g lead on one wingtip and 15 grams in rear end of the plane to obtain proper balance.
Quality is great, pretty much the same or even better than Sebart, and much better than EF, atleast much more better than my EF 58'' Extra.
Pics and video will come as soon as I get home!


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RE: Kyosho Osmose 70, Sort of build thread (slow..) - 5/11/2009 4:41 PM   
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Status: offline 		Here's one video, i'll post second one as soon as it'll get converted on Vimeo.
Here's link to my build thread I din on local forum with lots of pics. http://www.latrc.lv/viewtopic.php?f=2&t=2001
http://www.vimeo.com/4587949 <- Video, i can't embed it here for some reason..

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