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Krill Avanti S build thread

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Old 01-31-2018, 01:35 AM
  #1  
Bigells
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Default Krill Avanti S build thread

Well this is my third Jet and it will be my first build. Iíve had COMP ARF Eurosport which was magic an then a 2,5 M FB Viper jet.which is big and loaud. The Swiss trainer scheme make it easy to see in the air it give it great presence.
i wanted a smaller plane than the Viper with very good flying characteristics, all composite with European guality. Cekeslovokia make the Jeti radio an the Krill line of models. I ordered an Avanti s Jet and a Jeti DS16 radio. Lots of nice new toys to play with

I will be adding pics at times
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Last edited by Bigells; 01-31-2018 at 02:38 AM.
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Old 01-31-2018, 01:53 PM
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I have started by installing the servos in the wings and elevators. I marked out the cut line for the control horns. Used a dremell tool and small files to cut the slots. I used hysol epoxy to glue the horns into the surfaces.
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Last edited by Bigells; 02-25-2018 at 01:19 AM.
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Old 02-25-2018, 01:31 AM
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Here are some pictures of the servos and the landing gear going into the wing. There are some detail pics of cutting slots for the horns and the glueing them into the surfaces. The Ekectron gear is great but when installed the wheels are proud of the outer surface by about .25 of an inch. I don’t think it will be a problem for the airflow in this area. But as a result of this the supplied gear doors can’t be used on the Electrin gear. What I plan on doing is to cut a slot in the gear door and hard mont them to the wing. The slot will alow the gear to go up and down.

Right now my computer is not playing with me so I can post additional pictures maybe later if I can figure this out again.
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Old 02-25-2018, 02:41 AM
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more pics
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Old 02-25-2018, 06:50 AM
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Originally Posted by Bigells View Post
The Ekectron gear is great but when installed the wheels are proud of the outer surface by about .25 of an inch. I don’t think it will be a problem for the airflow in this area. But as a result of this the supplied gear doors can’t be used on the Electrin gear.
Hi Bigells (sorry, don't know your name)
If use these retracts "Pahl Retracts" you will not have problems with gear doors and weells will not protrude from their bay also, because they are have same size as original pneumatics. Also the friend of mine told me these retracts have much quality then Electron (he use both).

P.S. Nice paint scheme.

Regards,
Sergey

Last edited by helifox; 02-25-2018 at 10:56 AM.
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Old 02-25-2018, 09:44 AM
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Steve Collins
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helifox

That link to the retracts doesn't work.
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Old 02-25-2018, 10:47 AM
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Originally Posted by Steve Collins View Post
helifox

That link to the retracts doesn't work.
Ops...
OK, here you can find Pahl Retracts for Avanti S

Regards,
Sergey


P.S. OK, according RC Univerce rules inks are not allowed to be posted.
so, just type "pahl-retracts.com" and go to "online shop". You will find there.

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Old 02-25-2018, 08:08 PM
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Pictures of the gear install in the wing
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Old 02-25-2018, 08:16 PM
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Pictures of method attaching control horn to surface.
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Old 02-25-2018, 08:19 PM
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Pictures of horn attachment to surface take 2.
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Old 02-25-2018, 08:43 PM
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This is the nose wheel retrack installed. The Electron nose retack has a machined fitting which picks up on the existing blind fasteners in the airframe and supports the retrack. Attaching the retrack requires #6 mm bolts to fit it to the airframe. The retrack whole assembly is a beautiful piece of work.

It also shows the two battery packs installed. They are Jeti 2900 mah Life packs which have a mounting box. The battery mount boxes have rubber isolators to mount to the airframe. The Avanti airframe as two composite plate which are intended to be used for the battery packs. They have been screwed down through the isolators which isolate them from the airframe.

The nose wheel gear doors are operated with two small digital HV servos. The servos are mounted in a bulkhead and require the control horns glued to the inside of the door. The gear doors will be managed by the sequencer in the Jeti DS-16 radio.
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Old 04-22-2018, 12:40 AM
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Old 04-22-2018, 12:42 AM
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Last edited by Bigells; 04-22-2018 at 01:01 AM.
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Old 04-22-2018, 12:43 AM
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Old 04-22-2018, 09:20 AM
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Looks really nice, lots of work put into the model. Can I offer one thought for you to consider and research? Consider replacing that fiberglass fuel tank before it springs a leak and makes a mess. My Avanti is the original "S" version but it's got Kevlar tanks now, a friend with an "S" version has put Kevlar tanks in his and your fuel tank looks exactly like the one that came with my Avanti.
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Old 05-21-2018, 06:31 AM
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Hello I need a new fuel tank for my Avanti, where can I get a replacement?

Thanks for any advice.
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Old 05-22-2018, 09:46 AM
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Originally Posted by osvaldopv View Post
Hello I need a new fuel tank for my Avanti, where can I get a replacement?

Thanks for any advice.
https://www.jettechusa.com/collections/fuel-tanks-1
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Old 09-03-2018, 09:02 AM
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Default Help needed please from Avanti Krill owners

Hello, I'm Paolo from Italy. I need your kind help to take a decision: buy or not buy an Avanti Krill from my friend.
Explanation: I tried an Avanti that now is owned by my friend, I had two flights with that plane. It flies really really well but landing is very critical and dangerous!! With or without full flaps extended, as soon as speed is low as "usual", the plane starts to be very unstable.
It's like a floating condition where the model keeps altitude (also with strong pitch down) and wings drop as on stall attitude.
It is the first time that I have an experience like that although I'm in use with similar models: today I'm flying with a Rebel Hot, a Predator 2.2, a Dynamo from ARG and I had a Futura 1.9 Tomahawk.
My friend has the same landing feeling...
Model setup and CG are exactly as from instruction manual (CG checked several times).
Do you have same experience with that model? Do you have any trick to suggest?
Your inputs will be really helpful for my decision: buy or not buy that model.
Thank you very much in advance.

Paolo
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Old 09-03-2018, 09:38 AM
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Mine is nose heavy from the manual and it is extremely easy to land. A friend also has one that I believe is nose heavy from the manual position and his is easy to land as well.

Yet another friend has one with a slightly more rearwards c.g. (probably nearer the cg listed in the manual) and he has also flown one that is nose heavy (according to the manual). From what I understand, he says that the nose heavy model is easier to land. I would try to move the cg forwards a bit.
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Old 09-03-2018, 12:34 PM
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Thank you Siclick for your reply.
As ďnose heavyĒ how much do you mean? Any idea about how much extra weight you have on nose (more than needed for CG as instruction) or how much in distance you moved forward the CG compared to instruction?
And... how much flaps down do you have for landing?

Thank you again
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Old 09-03-2018, 12:55 PM
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To be honest I can't really remember and the model is packed away at the moment.

There are no flap settings in the Krill manual so I am pretty sure that I used the settings from the Sebart version, which is 50 degrees of landing flap. That is plenty and it has no problem slowing down with a Merlin 140.

I can't remember the cg either but if you rest it on its tail, with the tanks almost empty, it rocks forward onto its wheels. If you are on the settings in the manual I would try it 10mm forwards. I have a Jeti 5200 Li-Ion battery right in the nose, 2x2600 batteries on the side plates and another 2600 (for retracts and smoke) on the radio tray.

Edited to add: the fuel tank is quite a bit forwards of the cg so if yours flys ok from take off at the moment then there is no real risk of trying the cg 10mm forwards as, if it ends up too nose heavy, the cg will move back again as the fuel is used.

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Old 09-03-2018, 01:48 PM
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Thank you again, really precious info.
Iíll discuss with my friend to test as from your suggestions.

Best regards
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Old 05-05-2019, 11:15 AM
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Hi after some advice on the c of g to, I flew mine today for the first time, first flight had the c of g so it was very light in the nose and lots of elevator, flew twitchy and was not much fun on landing, adjusted the elevator and moved batteries to forward position and itís not bad now, but when landing the nose still feels very light and bouncy on the grass field we use, considering adding a bit of weight to the nose, what have you all found ?
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Old 05-06-2019, 06:54 AM
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Hi all, here you can find all possible model tanks for AvantiS:

https://cmjets.com/20-sebart

regard from Spain
Carlos
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Old 05-24-2019, 02:47 PM
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Originally Posted by raddrilene View Post
Thank you again, really precious info.
Iíll discuss with my friend to test as from your suggestions.

Best regards
did anyone have the c of g settings from above ?? Ie more forward ??
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