Hi,

... the weight savings was approx 15 gram ... not so much, but the total weight of the aircraft depend on those small things here and there ... besides, i am using ys with short muffler, so it tends to be nose-heavy ...

The process is fast and easy , and the rigity is no problem, so it`s well- earned grams.

Kjell Olav

Hi Kjell
have you consider to mount the elev. servos in the tail ..i did that in the Oxalys i had , the install it self didnt save any weight but it helped me to move cg so i could remove some lead in the tail...i dont relly rember but it was around 50gr i think.
i used fut 9650 and some filters on the cabels

Hi Rune,

I mounted the servo`s in the tail as you can see ( JR 3421SA ), with ferrith filters. I also mounted the battery-pack far aft . (picture shows an early stage of the building process ).

I did an initial test of the CG, and now it seams ok for test-flight ( hope next week if the weather keeps ). It balance at approx 180 cm, which i think is a good starting point ...

Kjell Olav

Did you need to mount the battery that far back? What's the weight of those JRs?

Is that foam strong enough?

Is everyone finding that necessary?

Colin.

Kjell,
What are you using for power?

Carl

Hi Rune,

How important is it to use the ferrite filters? I have run 2 servos in the stab without filters successfully on several occassions. I have never used the filters. What are their advantages? Thanks.

Kjell,

Thanks for the info.

Jayjay

Hi
how important ..i really dont know, i have heard that you will get same results if you use a twisted cabel.

advantages..their job is to avoid that the long cabels gets inteference that can give glitches.
but if you take a look on ailron cabels ...thier also long ...dont think it much diference there..

well i have used it !

god luck Kjell .
to save more weight if you dont already have done it you can use the new Schultze rx battery pack...ca 140gr with switch and reg ..2000Mah lipos

Hi Guys,

The reason for this set up is that i am using YS 160 with hattori short muffler ... I have carefully measured the CG under the hole building process to avoid additional weight. The target for the CG have been 180-185cm , that seems a good starting point ...

The JR servos weight is 1.0 OZ each ... good performance for the job and fit perfectly without any cutouts in the stab.

The last thing i installed was the battery-pack which are a Lithium-Ion 2200 mah , weight 100 gram ... The fastener of the pack will also reinforce the horizontal web , but i would have no problem without also ...

Now the CG is 180cm without any additional weight installed ...

The rest will show when starting the new program FAI- P-09

Kjell Olav

Hi there,

My Integral will hopefully be at home tomorrow so I need to start collecting the hardware for it.

Does anyone know the pushrod length of the aileron and elevator servos when they are placed on the stabs? What is the length of the extension leads used in such case?

Final question, have you used the horns provided with the kit or used something extra such as MK etc? If yes, please provide your recommendations.

Thanks in advance,

Nikos

Hey Ram,

I plan to use exactly the same power setup on my Integral (Powerbox Digi Switch with TP LiPo 2s 1320) How do you charge your Lipo in such case? Do you remove the canopy and disconnect the switch? I have noticed that with this battery on my older plane I had to charge every 4 flights, average consumption was 150mA per flight (8 minutes) using a YS-160DZ with ARIA mount.

I opened the box today and the plane looks very promising I don't like the classic scheme a lot but if it flies ok I don't mind, I will measure the weights of the parts tonight and I will let you know.

Regards,
Nikos

Hi Nikos
Yes, I am moving the canopy away and disconnect the battery from the Digi-Switch.
I charge it with my ICE charger at 1C.
I fly 6 flights per charge with average of 140 mA per flight of 10 minutes.(using ZN mount for the 160DZ)
I also use the 2100mA battery from time to time and fly 11 flights with it.

Wight of complete model with 1320mA is 4.483 Kg.

After using the mejzlik 18x10 for several flights I came back to the APC 18.1X10 which is 4dbA less then the CF.

Regards

Ram

Hi Ram,

That's very light. I don't like moving the canopy and disconnecting, I think I will have to place a JR HD Switch with charge socket beteween the Digi Switch and the LiPo, the JR switch will be always on unless you want to charge or measure the voltage. Other option is to use my Duralite 2200 2s LiIon which is 50 gr heavier than the LiPo and has a separate terminal for charging so I will not have to disconnect the battery. I believe this is not as bad option considering that the HD switch will add up at least 20gr of weight.

Regarding the prop I used to fly my OTOP with an APC 16x12, now I think I am going for a 17x12 or a Mejzlik 18x10 with plastic spinner, not metal.

I really like the thick trailing edges of the plane plus the big surfaces compared to the older designs.

I will provide my weight information soon.

Thanks,

Nikos

Hi Nikos

I charge the battery out of the model just in case of fire
My Digi-Switch located in the fuselage on the servo plate so I have to open the canopy any way.

Ram

Hi Nikos,

Why not charge the LiPo directly through the balancer connector, this works very nicely and gives increased safety if you use e.g. a Hyperion balancer (or one of the many identical relabelled balancers). This balancer will disconnect from the charger in case one of the cell voltages gets too high. This works brilliantly!

Cheers.

A few links with info on the Hyperion LBA 6 balancer. A newer version called LBA 10 is also available.

[link=http://www.trextuning.com/lba6.php]http://www.trextuning.com/lba6.php[/link]

[link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXMGS7&P=7]http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXMGS7&P=7[/link]

[link=http://www.der-schweighofer.at/web/productdetails.php?artikelnummer=67531&prodID=1188]http://www.der-schweighofer.at/web/productdetails.php?artikelnummer=67531&prodID=1188[/link]

Hi Mola,

Thanks, I have this particular balancer but I don't have the adapter for the Thunder Power and Flight Power which is exactly the same. I may have to look for one. Unfortunatelly I can not use my Thunder Power balancer for such application. I think I may have to make an adapter myself.

Thanks anyway,

Nikos

Hi Ram,

...we came out at the exact same weight ; 4480 gram.

Mine is also powered with YS 160 , dual elev etc...
The fuselage are really light, i didn`t weight it, but it felt very light. The wing-half, ready to fly is 440gram, which also are good compared to similar construction. Stab`s "feel normal".

I am using the same setup i still have on my Impact , by using hyde 140 ARA mount with a soft silicon nosering. At the same time i have isolated the wings, stabs and canopy with tiny rubber band to the fuselage. Just my experience , even that the construction differ ... Anyway, the vibration felt , at least on the Impact, very soft, and the average current-consumption are 110 mah for each P-07 flight, which are very good for a stroker.

I should test the Integral this week, but a sudden fault in my RC equpment will cause a delay until spare parts arrive ... Better wait until everything is in order ...

Kjell Olav

Hi Kjell

I am not sure I understand the isolated things.

Do you have any photo that can give me an idea of how to make my isolate better?

I fill that my model is a bit noisy

Thanks in advance

Ram

Hi Ram,

Here you can see the main wing and the canopy isolated ... The stabs is done in the same way.
To me, the band seems made of a rubber/foam combination. It is a Hayes product sold by Tower Hobbies and my Impact have got this for about 2-years / 200+ flights and still keep the band like new , and it have resisted the oil/fuel ...

The installation is straight forward my cleaning, marking the contour with a tiny pencil and attach the band.
A trick on the canopy, since the clearance are small, is to attach only one-end of the band, then stretch it about the twice the lenght, and you can easily adjust the thickness of it. Now It will stay in this position, not flex back like a rubber band , and then you attach the rest of the lenght.

In my opinion, this isolating is highly recommended . The construction will be a lot more quiet, and you save it for dangerous frequensys by a stroker, specially the 4`s.

Hope this help
Kjell Olav

Kjell,

I looked on Tower's site and couldn't find that tape. Do you happen to ahve a part # you can post here. That foam tape is a great idea.

Hi Jason.

... at last i found my invoice-letter from Tower, but it does not exist in their site ..( p/n LXK853 )

But, i have the Hayes info ; "WING SADDLE FOAM TAPE" P/N 251.

Adress : HAYES PRODUCTS DIVISION OF CUSTOM INJECTION MOLDING
14325 COMMERCE DRIVE, GARDEN GROVE, CA 92843

.. I hope we found out, this is a good product ... I will ask Tower about it also ...

Kjell Olav

Try this SIg has it.

http://www.sigmfg.com/cgi-bin/dpsmar...251.html?E+Sig

Steve Maxwell

Here are the part weights of my Integral:

Left Wing: 390 gr
Right Wing: 403 gr
Right Stab: 120 gr
Left Stab: 121 gr
Rudder: 59 gr
Fuselage with Underbelly + Canopy: 877gr
Wing Tube: 79 gr
Stab Tube: 13 gr
Wheel Pants:: 34 gr
Landing Gear: 116 gr

There is some difference between the wings but will also check this during the trimming procedure.

Nikos

... Great !

I better get a bunch of it for future projects ...

Thanks!
Kjell Olav

Hi Nickolas,

... Your plane will be in the low-weight-range also .. Those part`s i checked in mine had the same data ...
It seems that the kit`s from CARF have a constant high-end standard ...

I hope to be in the air soon, ( week or so ) using the fall to setting everything up for next season event`s ...

Kjell Olav