Search found 224 matches

by Nick_Karatzides
Sat Aug 16, 2014 12:51 am
Forum: Customs & Mods
Topic: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model
Replies: 27
Views: 21627

Re: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild m

CHAPTER VII - Canopy construction The Jukka Tervamäki Engineering JT-9T autogyro canopy is made by bented and cold-formed 3mm polycarbonate sheet. The backwards sliding canopy of the single seat JT-9 version, offers the possibility to taxi and fly slowly with the canopy open, a benefit in a hot cli...
by Nick_Karatzides
Fri Aug 15, 2014 6:12 pm
Forum: Customs & Mods
Topic: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model
Replies: 27
Views: 21627

Re: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild m

CHAPTER VI - Landing gear system construction The single seat JT-9 and the tandem seating JT-9T, are available with tricycle landing gear system with a steerable nose wheel or a taildragger version too. For both types, the type of landing gear is based on the placement of the exact CG position, det...
by Nick_Karatzides
Fri Aug 15, 2014 5:24 pm
Forum: Customs & Mods
Topic: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model
Replies: 27
Views: 21627

Re: 1/18 scale Jukka Tervamäki Engineering JT-9T autogyro sc

CHAPTER V - "H" shaped tail construction The Jukka Tervamäki Engineering JT-9T autogyro designed by Finnish engineer Mr. Jukka Tervamäki, is equipped with a twin "H" shaped tail. To build this, I started by rolling flexible styrene sheet around a plastic tube and forming as required to look like th...
by Nick_Karatzides
Fri Aug 15, 2014 4:56 pm
Forum: Customs & Mods
Topic: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model
Replies: 27
Views: 21627

Re: 1/18 scale Jukka Tervamäki Engineering JT-9T autogyro sc

Remember the previously mentioned wooden picture frames, found at the local IKEA store for only 1€ each, securing the styrene plastic sheet to be vacuum formed? I kept these thin plexiglass plates, to use them as required. Continuing the cockpit construction, I had to build the rear cockpit cover, s...
by Nick_Karatzides
Fri Aug 15, 2014 4:14 pm
Forum: Customs & Mods
Topic: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model
Replies: 27
Views: 21627

Re: 1/18 scale Jukka Tervamäki Engineering JT-9T autogyro sc

Using the proper Black & Decker saw tool, a 34mm wide hole was drilled through the side of the box to facilitate a vacuum cleaner fitting. Luckily, last week I found a real bargain at the local Media Markt store and I bought a 1600W brand new Hyundai HVC-6003 vacuum cleaner for 15€ only. I decide to...
by Nick_Karatzides
Fri Aug 15, 2014 3:52 pm
Forum: Customs & Mods
Topic: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model
Replies: 27
Views: 21627

Re: 1/18 scale Jukka Tervamäki Engineering JT-9T autogyro sc

To produce a thin-skinned right side fuselage, the polyester part, must be vacuum formed. That means, that I should build from the beginning a new vacuum chamber box. Vacuum forming is a very simple technique that can produce thin-skinned parts of various forms. I mainly used vacuum forming for prod...
by Nick_Karatzides
Fri Aug 15, 2014 3:25 pm
Forum: Customs & Mods
Topic: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model
Replies: 27
Views: 21627

Re: 1/18 scale Jukka Tervamäki Engineering JT-9T autogyro sc

CHAPTER IV - Right side fuselage construction As I said at the beginning of this thread, I decide to make the JT-9T building look more interesting and show the model in a way that airframe should look like cutaway side opened and let cockpit detail be easily observed. THIS artistic diagram gave me ...
by Nick_Karatzides
Fri Aug 15, 2014 2:34 pm
Forum: Customs & Mods
Topic: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model
Replies: 27
Views: 21627

Re: 1/18 scale Jukka Tervamäki Engineering JT-9T autogyro sc

CHAPTER III - Instrument panel & cockpit construction The original Tervamaki Engineering JT-9T autogyro instrument panel is not what you would call as "glass cockpit". Actually it does only have just the basic instruments in cockpit to provide the pilot with information about the flight situation, ...
by Nick_Karatzides
Fri Aug 15, 2014 1:49 pm
Forum: Customs & Mods
Topic: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model
Replies: 27
Views: 21627

Re: 1/18 scale Jukka Tervamäki Engineering JT-9T autogyro sc

CHAPTER II - Diesel engine building & painting Setting as a task to build the model in a way that airframe look like cutaway side opened with cockpit and engine bay details visible, I should also leave the engine's cover opened. that offcourse means that a diesel engine building from scratch is som...
by Nick_Karatzides
Fri Aug 15, 2014 12:09 pm
Forum: Customs & Mods
Topic: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model
Replies: 27
Views: 21627

Re: 1/18 scale Jukka Tervamäki Engineering JT-9T autogyro sc

CHAPTER I - Basic airframe skeleton construction http://s23.postimg.org/rv6ieuwrf/IMAGE_0009.jpg http://s18.postimg.org/r2ga6qvh5/IMAGE_0010.jpg http://s18.postimg.org/tejoqliop/IMAGE_0011.jpg Following the 1/18 scale printed diagrams and using just a sharp blade and CA super glue, it took about 60...
by Nick_Karatzides
Fri Aug 15, 2014 9:33 am
Forum: Customs & Mods
Topic: 1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model
Replies: 27
Views: 21627

1/18 scale Jukka Tervamäki JT-9T autogyro scratchbuild model

1/18 scale Jukka Tervamäki Engineering JT-9T autogyro scratchbuild model Having tried my (suicidal) virgin 40 minutes flight experience with a friend's homemade autogyro during my summer holidays with him on flight controls and me on the passenger's backseat, I can surely say that you really feel l...
by Nick_Karatzides
Mon Aug 11, 2014 6:18 am
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

This Fletter build is a subject most modelers would never think of, great choice.. This Flettner Fl-282 V21 Kolibri helicopter (available in "cutaway" version too) and a Bleriot XI-2 WWI monoplane model, both designed & produced in huge 1/18 scale, are available for sale as full 3D printed kits, pr...
by Nick_Karatzides
Sun Aug 10, 2014 2:15 pm
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

Each complete kit contains the basic frame sections, the elevator & rudder fins, the landing gear wheels, the 7-cylinders radial engine, the upper rotor transmission & gearbox, the rotor heads & rotor blades, the two cylindrical 25 litres fuel tanks (V21 kit only), the cockpit compartment with front...
by Nick_Karatzides
Sun Aug 10, 2014 1:59 pm
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

Each one of the two complete custom-made kits consists of 60 different 3D printed parts, some quite big and some others so tiny that could be easily become victims of the carpet monster. The only difference between these two Kriegsmarine’s V6 and Luftwaffe’s V21 custom-made complete kits, is that th...
by Nick_Karatzides
Sun Aug 10, 2014 1:49 pm
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

Shortly thereafter, the 3D printing proceeding outcome pleased me while watching the Mbytes, magically converting into actual physical objects. Yeah, that’s what I call “cool gadgets” on a scale modeler’s service. As soon as 3D printing process completed, the produced parts were cleaned & checked fo...
by Nick_Karatzides
Sun Aug 10, 2014 1:40 pm
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

After digitally building the Fl-282 Kolibri 3D model using only mouse clicks, I saved it as an STL - STereoLithography format binary file and forward it on the 3D replicator to start generating the individual parts of the actual scale model. To do so, I used the best available tools & plastic materi...
by Nick_Karatzides
Sun Aug 10, 2014 1:28 pm
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

Some additional parts unrelated to the helicopter structure, also designed to get 3D printed later and be used later as part of a diorama scene. For example a couple of 200 litres fuel drums (also known as 55 gallons drums in USA) and few 20 litres (4.4 imp gal; 5.3 US gal) “Jerrycan” fuel canisters...
by Nick_Karatzides
Sun Aug 10, 2014 1:11 pm
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

As previously said, I found interesting idea to have the 7-cylinders radial engine would be installed inside the helicopter's belly in the fuselage center-section (and become almost hidden) and also 3D print a second removed engine, place it on a wheeled stand and present it nearby, as it would be t...
by Nick_Karatzides
Sun Aug 10, 2014 12:58 pm
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

This is the 3D design of one of the two rotor heads, equipped with vibration dampers “pots” on the blade roots. Each one of the separately 3D printed rotor blades, will be later attached on the blade root connecting hinges and the outcome will be installed on gearbox shafts, having an included angle...
by Nick_Karatzides
Sun Aug 10, 2014 12:49 pm
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

The doped fabric cover over the truss-type welded tubes & wooden ribs is about 0.4 mm thick (in some special areas about 0.7 mm). Thinking as a rivet counter, this 0.4 to 0.7 mm thick “fabric cover” could be considered as an out-of-scale unforgivable mistake, having always in mind that it does repre...
by Nick_Karatzides
Sun Aug 10, 2014 12:10 pm
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

The biggest part of the kit are the 4 rotor blades measuring approx 28 cm long each. The fuselage was CAD designed such way and later 3D printed into two main section parts with all included truss-type welded tubes and drive shaft rods with universal joints inside. That was mostly preferred for me, ...
by Nick_Karatzides
Sun Aug 10, 2014 10:44 am
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

This is the complex of intermeshing rotor gearbox. It turned out (as happened in the actual helicopter) that it was the hardest and most complicated part to build, because it was not easy for me to get a technical manual describing the gearbox in detail. Fortunately (thanks to Deutsches Marinemuseum...
by Nick_Karatzides
Sun Aug 10, 2014 10:30 am
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

CHAPTER II - Converting Mbytes into actual physical objects Before start building a new scale model, I always try to study as much as possible the object of construction. Any available references such as technical manuals and detailed photos always help during building process. As described into my...
by Nick_Karatzides
Sun Aug 10, 2014 10:22 am
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

Captured helicopter #4 : It is reported that another Fl-282 helicopter which had been assigned to TransportStaffel TS40 was captured at Rangsdorf by Red Army forces in serviceable condition and later transferred to USSR for further testing & evaluation. Judging by the following pictures, it’s a B-0...
by Nick_Karatzides
Sun Aug 10, 2014 10:13 am
Forum: Customs & Mods
Topic: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild model
Replies: 57
Views: 33482

Re: 1/18 scale Flettner Fl-282 V21 Kolibri scratchbuild mode

Towards the end of World War II, most of the surviving Flettner Fl-282s were stationed at Rangsdorf AB & Ainring AB at Mühldorf, Bavaria, in their role as artillery spotters, assigned to TransportStaffel (transport squadron) TS40, the Luftwaffe's only operational helicopter squadron but gradually fe...