NEXT wood sport jet
 

For me engineering is the most interesting part of my hobby.

After engineering f100, f104, f86, T33, blackbird and some sport jet(for third person) I decided to make a new project, a new sport Jet.



No limitations of airfolil, design, inlets, dimensions, no hand made lines from customer has to be run after. I was really free to design what I want.

Hard was the idea to totally exit from the lines who market offer, but I try to do it. Obviously some limitations are considered: shape of wood model has to be made considering the building technology. Engineering a master to made a mold is easier, no shape limitation, you have only to e be sure about undersquare.

This is the result: the NEXT.
https://cimg2.ibsrv.net/gimg/www.rcu...2c56fcdaf8.jpg
https://cimg3.ibsrv.net/gimg/www.rcu...df4af91baf.jpg
https://cimg4.ibsrv.net/gimg/www.rcu...6151bee587.jpg
https://cimg6.ibsrv.net/gimg/www.rcu...26cf2330ba.jpg
https://cimg5.ibsrv.net/gimg/www.rcu...b4b99e24a0.jpg


The project starts last year but finally defined only last days of january. About 400 hours to define shape and parts. And I’m not a person who sleep….

Thechnical specifications was made before starting to draw the shape, many fixed points has to be respected. At the end all specifications was respected.

The biggest doubt, taken in account in the first part of the engineering, was the inlets. I never see something like that….why? After a lot of discussion with most engineers and some calculations I decided to use that shape. No one real and numerical significant contraindication was find, only a lot of word from the “experts”, without numerical demostration.

Practice demostrated that model respect the physic and not the word. Inlets are totally neutral in any flight phase at all speed range.

During first flight I immediatly undestand that all target was reached, the flight charateristics was exactly what I plan. I’m really very happy, this is the best performance model that I have never flown in over 20 years of jet model flying.

The model is 2.2m wing span and 2.65 m long. Powered by B100F derated at 114.000 rpm, about 8.5kg.

Building the model was very very easy….I sent the drawing to my friend Mirce and in less the 2 month he give it to me at home finished.

He made a beautiful job, 5.6 kg ready to paint. Very well.

Mirce give me the model on Friday, on Saturday I installed all and on su sunday the maiden. Final weight wasn’t checked, I think less 12kg at take off.

I’m really very happy for the performace of the model, with only 8.5 kg trust it is possible to made all what you want without problem, as you can see on the maiden video.

First day I made 10 flights without problems. I have to remove a little quantity of ballast(I put more ballast than needed for maiden….).

Mirce has a lot of picture of building, I hope he put it here to show his beautiful job.

This is the video: https://www.facebook.com/10000877885...6771352958807/



I’ll made other 20-30 flights then paint.

I hope you apreciate it







damiano

Man, when you learn to fly Right Side Up, you are going to have a great airplane there :)

There are a lot of comments from time to time related to lack of builders out there. Like you, my fascination with the hobby quickly went to building/ creating. I even invested in CNC mills and lathes, created landing gear etc.

I think what you built is incredibly awesome. And thanks for sharing!! I know the kind of effort it takes to create (and lack of sleep). Good Luck with the painting!

Sean

Fantastic design! So far, this is the best looking wood sport jet I ever seen, Seems to fly great too.

This would be a great option for the few building guys that can own and fly a jet this days.

Well done, as has been said it would be very cool to see this available as a kit. Very cool and different design.

Keep us informed as things move along, would be nice to see the finished paint work.

Robert

Nice good looking jet no doubt. They should bring back the DV8R!

Are you going to allow Mirce to sell short kits like the other models?

"After engineering f100, f104, f86, T33, blackbird and some sport jet(for third person) I decided to make a new project, a new sport Jet."

I have seen these kits through Mirce ... but have not seen anything about the T-33. Do you have any more information about this one posted anywhere? Also, sorry to hear the T-38 was put on hold...

Team work and another successful project.

NEXT is another example of Damiano's great design and engineering.
The frame construction is from a 3 mm poplar ply, and for sheeting we used 3 mm balsa. Nose is 3D printed.
The complete model is coated with 18 gr glass fabric & epoxy resin.
NEXT is extremely strong, while the weight remained relatively small for this size acrobatic plane.

https://cimg3.ibsrv.net/gimg/www.rcu...3591d6c450.jpg

We designed special templates for making wings and horizontal stabilizer.
With them each part is placed in a precisely defined place and the workmanship is fast and very precise.

https://cimg0.ibsrv.net/gimg/www.rcu...956a9a32c2.jpg

https://cimg8.ibsrv.net/gimg/www.rcu...017ec1951c.jpg
https://cimg9.ibsrv.net/gimg/www.rcu...081971aaf7.jpg

https://cimg1.ibsrv.net/gimg/www.rcu...b57d33a22b.jpg

Model is easy for transport, wing is from two pieces (wing joiner is 30 mm aluminum tube) and elevator is removable also.
Huge canopy allows easy installation of equipment.

https://cimg4.ibsrv.net/gimg/www.rcu...01237abbdf.jpg

Canopy with inlets is the most unusual part and gives the model a unique shape...

https://cimg7.ibsrv.net/gimg/www.rcu...9bc483831d.jpg

Bottom fuselage side is extremely attractive with smooth transitions from one form to another.

https://cimg9.ibsrv.net/gimg/www.rcu...47b5de8581.jpg
https://cimg0.ibsrv.net/gimg/www.rcu...a100881d92.jpg

Few more details...

https://cimg8.ibsrv.net/gimg/www.rcu...3b91f8350e.jpg
https://cimg7.ibsrv.net/gimg/www.rcu...6edbc0d995.jpg
https://cimg6.ibsrv.net/gimg/www.rcu...03c595a86f.jpg

https://cimg1.ibsrv.net/gimg/www.rcu...7590bfd9ca.jpg

https://cimg3.ibsrv.net/gimg/www.rcu...020dee6512.jpg
https://cimg4.ibsrv.net/gimg/www.rcu...6027f8ab59.jpg

Like any Damiano's design, for NEXT there is no need for paper plans, the pieces fit like a Puzzle and you can not turn around or otherwise set up parts as they can.
It is important to note that the complete model is designed in a 3D program, structural strength is designed for far greater force than the load in flight.

For the first flight, the turbine's thrust was about 8 kg, and then, for testing purposes, thrust is increased to 10 kg was increased.
The differences were almost absent, except that the maximum speed increased from 215 to 229 km/h.
The idea for this model is to use a smaller turbine with less fuel.

https://cimg6.ibsrv.net/gimg/www.rcu...6724fc323b.jpg

Damiano use Electron E40 landing gears with "legs" and wheels from the same company.
https://www.electron-retracts.com/er-40evo/

Fuel tank solution is also interesting, a "camel bag" of two liters was used, without UAT tank.
System works phenomenally !!!!

https://cimg4.ibsrv.net/gimg/www.rcu...130c8e276e.jpg
https://cimg5.ibsrv.net/gimg/www.rcu...6a544e1ffa.jpg

These days the sale of wooden kit will begin.
The plan is to sell and ready-made models, ready for painting.
Of course, one should not forget, "Mirce models" is a small company and the production of finished models is limited.

More information soon...

Mirce

Thanks everyone for interesting about wooden kit.

I am waiting for Damiano to make more flights and as soon as I get a "green light", the sale starts and the finished models can be ordered.

As far as price is concerned, it will be very affordable both for wooden kit and for ready-made models.
The only thing I can say now is that the wooden kit will be cheaper than any wooden kit we currently have on offer.

Please be still a little patient ...

One more YouTube...
https://www.youtube.com/watch?v=8SYH...PWwF27ym4_4oZQ

very cool jet

Let sales begin... :)

"NEXT" aerobatic jet model from "Mirce models" can be ordered as a wooden kit or ready-made model for painting.

You may want to reconsider the fuel tank as in north America a plasma bag style fuel tank is not permitted under AMA or MAAC rules for turbine operation. A hard shell tank that you sell or one that is already commercially available would be of benefit.
just my thoughts.

Of course, the "NEXT" model can also use "solid" tanks. The picture is just a preview of what Damiano used, but it was not said that such a tank should be used.

Last weekend, Damiano made another ten starts and as you can see in the picture, the tank was replaced.
The reason is that such a tank has a larger volume, so the flights lasted over ten minutes.

https://cimg0.ibsrv.net/gimg/www.rcu...abe2cd154d.jpg

Fuselage of the "NEXT" model is huge, so any tank can be fitted, there is no need for special custom made shape.

Mirce

Very good looking model !!

Please Please Please consider small 1800 mm long NEXT or F-100 kit.

Major benefit for smaller size is more people to try wood build constriction and easier transportation.

If someone from USA want to order "NEXT", here is opportunity to bring one on Top Gun. No shipping cost in this case!!!

Don't forget offer - 10% discount on wooden kit for first five buyers.

https://cimg5.ibsrv.net/gimg/www.rcu...0e2bc9e9ba.jpg

Best regards

Mirce

I just might have to order one this winter, such a nice looking bird!

After a year of waiting finally have one of my own coming!

Building with wood is actually quite fun. I have an Avonds Fouga ready for maiden tomorrow. Wings/tail are built up balsa.