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Search: Posts Made By: Kristola
Showing results 1 to 25 of 37
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Forum: RC Jets
07-14-2023, 03:11 AM
Replies: 69
Views: 10,603
Posted By Kristola

Yeah, there is a lot of color schemes for other...

Yeah, there is a lot of color schemes for other than F-series. I probably have to take that route if there is no sensible color scheme for original prototype.

Last weekend in Karlskoga Jet Power...
Forum: RC Jets
07-06-2023, 03:24 AM
Replies: 69
Views: 10,603
Posted By Kristola

That april fools story would be nice to realize...

That april fools story would be nice to realize in 2/7 format. Then I could take many freedoms with my paint scheme, or maybe I should create even better story and color scheme:rolleyes:
Forum: RC Jets
07-05-2023, 02:18 AM
Replies: 69
Views: 10,603
Posted By Kristola

Hi all I have flown my MIG now, maybe 10-15...

Hi all

I have flown my MIG now, maybe 10-15 flights. During winter I updated retract-controllers and their logic for main landing gears and after few flights I also updated nose gear controller....
Forum: RC Jets
08-28-2022, 10:02 AM
Replies: 69
Views: 10,603
Posted By Kristola

That is fantastic! Lucky landings:D

That is fantastic!
Lucky landings:D
Forum: RC Jets
08-28-2022, 09:19 AM
Replies: 69
Views: 10,603
Posted By Kristola

At last I spendt some time developing retract...

At last I spendt some time developing retract electronics REV2.
Most of the HW-stuff is built as prototype and tested in lab.
Next phase is to test this fragile prototype with actual landing gear...
Forum: RC Jets
08-11-2022, 11:58 PM
Replies: 69
Views: 10,603
Posted By Kristola

Engine is 250 Atom from Jet Italia. Good to...

Engine is 250 Atom from Jet Italia.
Good to hear about positive experiences and flying characteristics.
I have no idea what I'm doing/dealing with, since I have done only one flight.
Forum: RC Jets
08-11-2022, 02:37 AM
Replies: 69
Views: 10,603
Posted By Kristola

Yes Ron. Nose gear doors, huge pitot spear...

Yes Ron.

Nose gear doors, huge pitot spear and cockpit area will reduce amount of lead.
I'm surprised the flying qualities. I remember seen some flight videos of model MIG-21, but this doesn't...
Forum: RC Jets
08-10-2022, 10:24 AM
Replies: 69
Views: 10,603
Posted By Kristola

Thanks My goal was under 20kg and it is...

Thanks

My goal was under 20kg and it is about that just now. I probably have to lose about 500g from the nose (there is 1.5kg lead and unnecessarily big batteries). Maybe more, if I update some of...
Forum: RC Jets
08-08-2022, 11:20 AM
Replies: 69
Views: 10,603
Posted By Kristola

I took vacation from work and was finally able to...

I took vacation from work and was finally able to make maiden flight.
There was some rectract gear control issues, but long dark winter hours will solve those.

Maiden flight video
...
Forum: RC Jets
07-08-2022, 04:59 AM
Replies: 69
Views: 10,603
Posted By Kristola

Well Ron.... It has been primed white with...

Well Ron.... It has been primed white with acrylic filler and radio installation is about done.
Retract controller is tested (made by me), which need to be installed. All retract and radio wiring is...
Forum: RC Jets
04-03-2022, 07:21 AM
Replies: 69
Views: 10,603
Posted By Kristola

Brakes, rims, some wire harnesses, cabin locking...

Brakes, rims, some wire harnesses, cabin locking mechanism etc. are done. Soon I spray some paint on.
13kg at this point. Still missing engine with it's accessories and all batteries. Some lead will...
Forum: RC Jets
01-30-2022, 05:02 AM
Replies: 69
Views: 10,603
Posted By Kristola

You might be right. Having simulated everything...

You might be right.
Having simulated everything in my head and the question "will it survive", makes this hobby interesting.
Al7075 and steel have been used everywhere I think the load is greatest....
Forum: RC Jets
01-29-2022, 08:01 AM
Replies: 69
Views: 10,603
Posted By Kristola

It took some time to make all the parts and there...

It took some time to make all the parts and there is a lot of them. Even making those small axles took several evenings.
...
Forum: RC Jets
01-29-2022, 02:32 AM
Replies: 69
Views: 10,603
Posted By Kristola

While building airframe, parallel project was to...

While building airframe, parallel project was to figure out how to make landing gears. Mig-21 gears are far from simple, and even though scale is big, parts tend to be quite small.
After design...
Forum: RC Jets
01-28-2022, 10:59 AM
Replies: 69
Views: 10,603
Posted By Kristola

Don't worry Ron. In any case the end result will...

Don't worry Ron. In any case the end result will probably be too clean.
I will overspray it with epoxy primer and sand it smooth.
Forum: RC Jets
01-28-2022, 04:41 AM
Replies: 69
Views: 10,603
Posted By Kristola

And when fuselage was finally whole, I could...

And when fuselage was finally whole, I could progress with assembly.
https://cimg3.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/2000x901/finglueing_f6914725c3c496ebaa9faabf289c9f65cfd2f851.jpg
Now I...
Forum: RC Jets
01-28-2022, 04:35 AM
Replies: 69
Views: 10,603
Posted By Kristola

I had to do something I was delaying all-ready a...

I had to do something I was delaying all-ready a long time. Join the fuselage halves....
Forum: RC Jets
01-28-2022, 04:12 AM
Replies: 69
Views: 10,603
Posted By Kristola

Almost ready. ...

Almost ready.
https://cimg8.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/2000x901/cabin_6b677aec976b0b8abd84b6290bb3705f9862b748.jpg
Just have to figure out novel locking mechanism.
Forum: RC Jets
09-04-2021, 09:34 AM
Replies: 69
Views: 10,603
Posted By Kristola

Front fuselage was big achievement. Making it's...

Front fuselage was big achievement. Making it's mold was very complicated and just laminating the part was also not an easy task....
Forum: RC Jets
09-02-2021, 08:49 AM
Replies: 69
Views: 10,603
Posted By Kristola

I built my milling machine with help of my...

I built my milling machine with help of my friends from industrial waste (it has been updated a lot) over two decades ago and it has moved many times. Last ten years it has been sitting in the corner...
Forum: RC Jets
08-30-2021, 09:49 AM
Replies: 69
Views: 10,603
Posted By Kristola

I have't really taken much pictures about my...

I have't really taken much pictures about my building progress. These two are only ones i could find about making off front fuselage mold.
...
Forum: RC Jets
08-30-2021, 09:02 AM
Replies: 69
Views: 10,603
Posted By Kristola

I started this some time ago. I'm just trying to...

I started this some time ago. I'm just trying to get this up to date asap.
Don't worry, this will slow down very soon. My previous 2/11 F/A-18D project took me 10 years. It has flown, but it's still...
Forum: RC Jets
08-30-2021, 03:17 AM
Replies: 69
Views: 10,603
Posted By Kristola

Front fuselage haunted in my mind while i...

Front fuselage haunted in my mind while i machined wing molds.
https://cimg7.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/939x1863/wingmoldhalf_2d26645fc39aaa464b31d5ab3cabbbfc2a666b6e.jpg
Very...
Forum: RC Jets
08-27-2021, 07:32 AM
Replies: 69
Views: 10,603
Posted By Kristola

As i had to think way to make lighter front...

As i had to think way to make lighter front fuselage mold, bottom fin was perfect test subject.
Mold was machined to urethane foam, which was then glassed and glass painted with special polyester...
Forum: RC Jets
08-25-2021, 02:14 AM
Replies: 69
Views: 10,603
Posted By Kristola

My first goal is to make it airborne asap. Then...

My first goal is to make it airborne asap. Then it is time for details. Unfortunately Finnish color schemes are boring, but that is probably the way i go anyway.
...
Showing results 1 to 25 of 37
 
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