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Sebart Mini Avanti w/ K45 build thread

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Sebart Mini Avanti w/ K45 build thread

Old 12-08-2017, 01:36 PM
  #626  
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Originally Posted by RemoteJets
If you ordered at Tamjets a K45 version then it should be the right one, only a little smaller then the Grumania version.

The outside diameter of the Grumania pipe for the K45 powered Mini Avanti S is 70mm (inner about 65mm).
Whit this pipe installed the carbon rod of the stabilizer just press on the pipe and keep it in place.

Grt,
Berto.
My internal diameter is only 50mm so not looking good. Also I am not sure how far the mouth of the pipe should be from the back of the turbine.

In in the Kingtech manual it shows 20-30mm for most of the other turbines but not the k45?
Old 12-08-2017, 03:07 PM
  #627  
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Mine is a Tams pipe same 50mm inner pipe diam. I have no issues so far .. I set mine about 25mm from bell mouth . probably have about 15 to 20 flights on mine so far


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Old 12-08-2017, 03:43 PM
  #628  
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Thanks Emart. That is good news. Would there be any chance you post 2 photos of your pipe install I.e front and rear.

I wiuld be sooooooo grateful.
Old 12-08-2017, 04:01 PM
  #629  
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here you go the tail end on mini avanti is a little hard to see i have weights glued in i have included a pic of my Avanti XS and you can see how I made the rear ring to support the pipe
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Old 12-10-2017, 12:33 PM
  #630  
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Thats fantastic! Thank you so much.

I was just about to order the Grumania Pipe. You saved me several hundred dollars.

Thanks so much!
Old 12-10-2017, 12:46 PM
  #631  
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My Mini Avanti with K70G is ready for the maiden.
Waiting for better weather condition in frozen Austria.









I moved the tank backwards as far as possible to avoid that it is too nose-heavy with full tank.

The weight is almost the same as with the previous Mini Avanti with electric 8s setup and lies with full hopper tank and empty main tank at about 4370g.

Last edited by tuxian007; 12-10-2017 at 01:12 PM.
Old 12-25-2017, 02:02 PM
  #632  
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Today the maiden flight with the K70G took place.

I am glad to have installed the K70G because the performance when starting or going around is by no means a disadvantage.
It was a bit noise heavy with a full tank but that was to be expected.

The performance is great even if I was a little more cautious on the first flight.

Takeoff:

Overflight:

Low Pass:

Landing:

Markus
Old 12-25-2017, 02:25 PM
  #633  
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Default K45

Hi guys can you share your run parameters for the k45. I just need to compare with mine. Running diesel..

thank you
Old 12-27-2017, 01:50 AM
  #634  
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Originally Posted by Dave Wilshere
J125.1037 made by Jet-1a. They are doing sets for the Mini Avanti
email them at [email protected]
Did you also replace the noise struts and is it possible to use bigger wheels?
Old 01-01-2018, 01:12 PM
  #635  
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Could I ask where you purchased the fuel tank from please?
Old 01-01-2018, 01:22 PM
  #636  
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Originally Posted by jet-lover
Could I ask where you purchased the fuel tank from please?
Carlos at CMJets

Cmjets on Facebook (can't seem to post direct link)
https://cmjets.com/

http://www.rcuniverse.com/forum/rc-j...ets-tanks.html
Old 01-01-2018, 01:24 PM
  #637  
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Yes I bought it from CMJets:
https://cmjets.com/sebart/39-mini-avantis-13l.html
Old 01-01-2018, 03:02 PM
  #638  
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Hello Friends, yes, I make the mini AvantiS 1.3L tanks.
you can write me direct to my personal email, I’m changing the website and the new not is full operative still.

[email protected]

thanks
Carlos
www.cmjets.com
Old 01-01-2018, 06:06 PM
  #639  
Doug Cronkhite
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What should the distance be between the tailpipe and turbine? Using Tam's pipe..
Old 01-02-2018, 06:51 AM
  #640  
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Originally Posted by Doug Cronkhite
What should the distance be between the tailpipe and turbine? Using Tam's pipe..
You could start with the Grumania installation guidelines, page 3 of 8 on this pdf
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Old 01-02-2018, 07:09 AM
  #641  
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Originally Posted by Doug Cronkhite
What should the distance be between the tailpipe and turbine? Using Tam's pipe..
I set the exhaust nozzle 15 mm from the face of the pipe, NOT the bellmouth on the Tam pipe. I have a K45 installed.
Old 01-02-2018, 11:55 AM
  #642  
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Default Fuel tank

Originally Posted by jet-lover
Could I ask where you purchased the fuel tank from please?
JET LOVER, I sent you a PM.
Old 01-04-2018, 02:38 PM
  #643  
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Any chance someone has a drawing for the rear pipe support?
Old 01-04-2018, 02:43 PM
  #644  
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Jet-Lover, write me !!!!

[email protected]

Regards from Spain
Carlos

www.cmjets.com
Old 04-05-2018, 04:35 AM
  #645  
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Hi Guys,

I have now started the build on my Mini Avanti which will have the K45 fitted. Need some advice on the following:
A) Tail pipe: I have a spare HSD Super Viper tail pipe available, i trial fitted it and it looks just perfect as the rear former holds the pipe exactly in position. except for a couple of issues: pipe seem a little long and protrudes outside fuselage by 5 to 6 cm would this be a problem? on the other hand the outside pipe is pulling against the CF Stab rod, Would this be a problem?

B) Still not sure about which Fuel tank to use as i would have to remove (cut out) the the inlet liners as no decent fuel tank would fit in this narrow space and moving fuel tank forward is out of the question for sure.

Any help/feedback on the above would be much appreciated.

Regards,
Old 04-05-2018, 04:42 AM
  #646  
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There's a CM Jets tank that fits well, I have the bigger one and it needed some mod to the inlets but that posed no problem in flight. But they have one thats tapered for the Avanti

Last edited by BarracudaHockey; 04-05-2018 at 04:55 AM.
Old 04-05-2018, 06:41 AM
  #647  
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Default Mini AvantiS 1.3L Kevlar Tank.

Hello, here you can find the solution for the Mini AvantiS

https://cmjets.com/sebart/39-mini-avantis-13l.html


Regards tromba Spain
Carlos
www.cmjets.com
Old 04-05-2018, 01:28 PM
  #648  
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Hi guys,

I am sure it is mentioned amongst all the preceeding posts, but I wish to check the best cg for this jet. So if you guys don't mind repeating the information I will appreciate the input. Perhaps your various control throws could also be mentioned.

Thank you,

JanR
Old 04-07-2018, 10:22 PM
  #649  
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Originally Posted by extra 300
Hi Guys,

I have now started the build on my Mini Avanti which will have the K45 fitted. Need some advice on the following:
A) Tail pipe: I have a spare HSD Super Viper tail pipe available, i trial fitted it and it looks just perfect as the rear former holds the pipe exactly in position. except for a couple of issues: pipe seem a little long and protrudes outside fuselage by 5 to 6 cm would this be a problem? on the other hand the outside pipe is pulling against the CF Stab rod, Would this be a problem?

Regards,
Any feedback on whether ok to use the HSD Super Viper tail pipe on the mini Avanti and K-45?

Thanks in advance
Old 04-07-2018, 10:50 PM
  #650  
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Talking

If it fits, i could not see why not, just trail and error i suppose ....

Made another 6 flights with the Mini.
I completely lost count but my K45 tell's already more then 10hrs on the clock and it went in this bird from new out he box.

So still going strong, and still lots of fun to fly!!

Must say, cause she took some beating in all sorts, she doesn't look that "sharp" any more......

I have an brand new one laying on he shelf, completely build up, as a spare, only no turbine

I'm considering putting a K70 in there but i wonder, will the airframe handle the load/push of an K70????

Although mine had a really hard time, multiple from way up there full nose down full throttle dive's etc. she's still hanging in there but she starts to show wear, tear and slop on almost every thing......

It would be the next step in fun with a K70 in there but, if the whole airframe at an certain point just explodes up there cause i took it just a step to far.....

What's you guy's thought's on this?

Cheers,

Ed

Last edited by Midas D.; 04-08-2018 at 12:53 AM.

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