Mega Shark 80, High Performance 80mm EDF-jet

https://youtu.be/6TJEkxVyx5A
https://youtu.be/EvL6xUZu0rw

The Mega Shark is the bigger brother of the successful 50mm Shark. The Mega Shark is a high performance jet powered by a 80mm EDF on 6s. The performance is not to be underestimated, the Mega Shark-80 is a real power beast and becomes very fast. Nevertheless, the Mega Shark is also very slow to fly and glides very well and can be landed very easily.

Wingspan 1300mm, flying weight about 2500gr.

The Mega Shark is designed to be printed in foaming LW-PLA and has been tested and found to be strong enough in that material. Other materials, foaming and non-foaming, are probably also possible, but I can't make any statements about those materials, everyone has to test for themselves whether the strength is sufficient or not.
The structure is kept quite simple and consists of relatively few parts. The fuselage segments have a wall thickness of about 6mm, are printed with 1 perimeter and 6% Gyroid infill. The wing parts on the other hand are solid with integrated wing spar and other reinforcements where necessary, these are also printed with 1 perimeter and 6% infill. The wing has proven to be more than strong enough during many flights, but if you really want to go fast I recommend you the possibility to build in 1.5mm carbon spars.

The wings are easily removable for transport and the fuselage consists of several parts that are assembled with a few screws, so in case of damage only the broken section needs to be replaced.

The Mega Shark has been tested extensively, and it has been shown that the construction flies well and is strong enough for normal use.
However, I cannot take responsibility for the print and build quality, nor for the pilot skills of the customer.

Although the Mega Shark flies almost fool proof, it requires a trained pilot due to its possible performance nor is the Shark a trainer and therefore not suitable for learning to fly RC planes.

The shark story can be found at
https://www.rcgroups.com/forums/showthread.php?4580399-SHARK-and-MEGA-SHARK-a-fast-50-90mm-EDF-flying-wing

Mega Shark-80 Update 1
Although the original wing er has proven to be strong enough during many flights, there has been a case of failure in flight. The cause was not so much the design of the er but the cause of the failure was probably that it was printed in an unsuitable material (ASA). Nevertheless, I have decided to reinforce the er at the location in question. I would like to point out once again that the wing er must be printed in a tough material such as PLA+ or though PLA, I myself have used Poly-air from 3DLABprint for this.
Furthermore, parts F2, F3 and F4 were updated. In F2 and F3, the tabs that align the wing are now internally extended to the inner wall. The same applies to the fin at the bottom of F4. The original versions can be used without hesitation. I myself still have them in my current Shark without any problems. In another design of mine it turned out that extending those reinforcements is a significant improvement if for example the landing is a bit bumpy, that is why I added it to the Shark as well.
These updates you can now find as standard in the files of the "Mega Shark-80 update 1" as well as in the separate folder "update 1 parts only".

The purchase of the files includes the STL, 3MF (Prusa 2.9,0), GCODE files and a Manual. With these it is possible to print and build the Mega Shark-80 on a 3D printer with a print volume of 220x220x250mm.

I also can not guarantee that the supplied GCODEs will work properly on your printer, so the 3MF and STL files are included to make the necessary adjustments yourself.

What do you need:

Minium Print Volume 220x220x250mm

1x 80mm EDF 6s
1x ESC according to the EDF unit used
1x LiPo 6s 3300-5000mAh
2x 12gr servo for ailerons,
1x RX
16x neodym magnets 12x3mm
2x 500mm 0,8 steelwire
2x servo cables aprox 200mm
1000gr LW PLA
200gr PLA+
15gr foaming TPU
(4x 500mm 1,5 Carbon Rod)