76
Aircraft Modeling / Re: Tauro Macchi C.202
« on: December 04, 2016, 08:11:09 PM »
Really well built.
Jicéhem
Jicéhem
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77
Aircraft Modeling / Re: Tauro Macchi C.202
« on: December 04, 2016, 06:05:27 PM »Actually, as I think of it, the Macchi designers were attempting to counteract the torque of the propeller and engine which would tend to cause a left-wing heavy condition. Their solution, rather than offsetting the vertical fin like some others did, was to extend the left wing, giving it a little more lift. I don't suppose the designers (this was used on the MC 200 also) thought to change the camber of the left wing for added lift but rather just extended it. In essence, they were simply trying to "pick up" the left wing by adding lift. I'm guessing they used their slide rules to determine if adding wing span caused less drag than offsetting the vertical fin.
OK. But if it's really the case the uppersurface of the left wing must be more rounded (convex). This is the only effective factor that gives more lift.
Jicéhem
78
Aircraft Modeling / Re: Tauro Macchi C.202
« on: December 04, 2016, 11:19:49 AM »Jicehem: I did some research and the left wing was actually the longer one, and Tauro accurately molded the model to this dimension. On the real airplane the left wing was 21 cm longer.
Hi mate,
It's not logical. To counteract the natural tendancy of the plane to turn to the left with a engine (propeller) running to the right, the right wing should be longer than the left one... There is something that I don't understand
Jicéhem
79
Aircraft Modeling / Re: Arado Ar 234 V7
« on: November 28, 2016, 01:20:01 PM »
Thank you for your reply, Second Air force.
Jicéhem
Jicéhem
80
Aircraft Modeling / Re: Arado Ar 234 V7
« on: November 28, 2016, 08:47:34 AM »
Hi mates,
Thank you for comments.
What's this book ? Is it English version of Philippe Bauduin's book ?
Jicéhem
Thank you for comments.
I've only recently finished a book and this airplane and that first mission are written of in one chapter.
What's this book ? Is it English version of Philippe Bauduin's book ?
Jicéhem
81
Aircraft Modeling / Re: Arado Ar 234 V7
« on: November 25, 2016, 10:09:53 AM »
Hi mates,
The airplane is now entirely painted. I have to find markings beacause the modification has been made from the night-fighting version... and the markings in this box are not suited for a prototype. I started also the building of the Rato devices (HWK 500 R-Gerät) :
Jicéhem
The airplane is now entirely painted. I have to find markings beacause the modification has been made from the night-fighting version... and the markings in this box are not suited for a prototype. I started also the building of the Rato devices (HWK 500 R-Gerät) :
Jicéhem
82
Aircraft Modeling / Re: Trumpeter F-106B
« on: November 24, 2016, 05:52:09 PM »
Hi 
Amazing. It looks very real.
Jicéhem
Amazing. It looks very real.
Jicéhem
83
Aircraft Modeling / Re: Arado Ar 234 V7
« on: November 24, 2016, 04:22:34 PM »
This Dragon kit is really delicate to assemble. It is necessary to thicken the pins of wings, and by top necessarily, to avoid having a gap with the the back of the fuselage. But it is not enough; in reality, it would be necessary to lower the cracks of fixation. In brief, the result was to sand to obtain a continuity of all the surfaces. I drew the plan of camouflage in broken lines, which, at that time, is in RLM 70, 71 and 65.
The plastic of this model is of poor quality and wings must be strengthened to avoid warping...
Now, wings and horizontal tail wings are fitted.
I calculated the size of the skids by using a " full side " photographs of Ar 234 V5. That also helped me to draw a profile in 1/72 scale. For the making of skids under the nacelles I used two half parts of 50 kg bombs in 1/48. Indeed, these skids have to be hollow to fix it the operating piston. The housing of this jack is a simple crack in the nacelle, the skid sticking to it in retracted position.
The upper part of the glazed nose of the Ar 234 A is not the same than that of the B version and has to be reshaped. I used a vacuformed from Squadron for a B version but reshaped it. I represented too the internal frames of the glazed housing on which glasses are affixed by the means of screws. they are made of black paper strips. There are no external frames on the Ar 234... I had too to make a new cockpit intéerior because it's not the same than this of the B-version.
Skids are now fitted :
Next step will be painting in RLM 70, 71 and 65 colors.
To be contnued.
Jicéhem
The plastic of this model is of poor quality and wings must be strengthened to avoid warping...
Now, wings and horizontal tail wings are fitted.
I calculated the size of the skids by using a " full side " photographs of Ar 234 V5. That also helped me to draw a profile in 1/72 scale. For the making of skids under the nacelles I used two half parts of 50 kg bombs in 1/48. Indeed, these skids have to be hollow to fix it the operating piston. The housing of this jack is a simple crack in the nacelle, the skid sticking to it in retracted position.
The upper part of the glazed nose of the Ar 234 A is not the same than that of the B version and has to be reshaped. I used a vacuformed from Squadron for a B version but reshaped it. I represented too the internal frames of the glazed housing on which glasses are affixed by the means of screws. they are made of black paper strips. There are no external frames on the Ar 234... I had too to make a new cockpit intéerior because it's not the same than this of the B-version.
Skids are now fitted :
Next step will be painting in RLM 70, 71 and 65 colors.
To be contnued.
Jicéhem
84
Aircraft Modeling / Re: Arado Ar 234 V7
« on: November 24, 2016, 01:22:53 PM »
I got this photo. Very complicated details...
Jicéhem
Jicéhem
85
Aircraft Modeling / Arado Ar 234 V7
« on: November 24, 2016, 12:00:46 PM »
Hi mates,
I begun at the very end of last April, and in 1/72 scale, the representation of Erich Sommer’s Arado Ar 234 V7 with which he realized the first operational photo-recce mission with a jet plane. That was on August 2nd, 1944, by overflying the Normandy beaches. This event is descrided in details in the last extra issue (No. 25) of Aéro-Journal. The assembly was lying in length for many reasons connected to certain delicate points of modification of the DML Dragon kit which represents the Ar 234 B-2r version.
It was thus necessary to eliminate) the landing gear and to slightly modify the profile of the turbojet nacelles. The longestwill be the trolley used for of take-off. It is necessary to replace the landing gear by skids. The Ar 234 A (i.e. V prototypes with skids) had the original « small » wing span due to the absence of the landing gear with a narrower fuselage which was later widenned by 20 cms to incorporate the main landing gear. So, the fuselage of the kit was shrunk by 3 mm to be in accordance with that of the V7 prototype.
Previously, it was necessary to close all the wheel bays of the landing gear and it is there that we realize weaknesses of fitting of the bay covers of a model which, on the whole, was studied "all opened"...
The fuselage is now assembled and the aerial cameras Rb 50/30 are also mounted. The housing of the ventral skid is done; it is slightly lacking depth, but it will go unnoticed, the plane being put on its trolley :
Cameras have a slope of 12 ° compared with the vertical line:
It was necessary to take back the upper profile of the engine nacelles, better steamlined than on the planes of series Ar 234 B. I made it by addition putty. Forms resumed several times... It is long, very long, but the end justifies the perseverance... It will be necessary to me to add the various small air intakes.
To be continued.
Jicéhem
I begun at the very end of last April, and in 1/72 scale, the representation of Erich Sommer’s Arado Ar 234 V7 with which he realized the first operational photo-recce mission with a jet plane. That was on August 2nd, 1944, by overflying the Normandy beaches. This event is descrided in details in the last extra issue (No. 25) of Aéro-Journal. The assembly was lying in length for many reasons connected to certain delicate points of modification of the DML Dragon kit which represents the Ar 234 B-2r version.
It was thus necessary to eliminate) the landing gear and to slightly modify the profile of the turbojet nacelles. The longestwill be the trolley used for of take-off. It is necessary to replace the landing gear by skids. The Ar 234 A (i.e. V prototypes with skids) had the original « small » wing span due to the absence of the landing gear with a narrower fuselage which was later widenned by 20 cms to incorporate the main landing gear. So, the fuselage of the kit was shrunk by 3 mm to be in accordance with that of the V7 prototype.
Previously, it was necessary to close all the wheel bays of the landing gear and it is there that we realize weaknesses of fitting of the bay covers of a model which, on the whole, was studied "all opened"...
The fuselage is now assembled and the aerial cameras Rb 50/30 are also mounted. The housing of the ventral skid is done; it is slightly lacking depth, but it will go unnoticed, the plane being put on its trolley :
Cameras have a slope of 12 ° compared with the vertical line:
It was necessary to take back the upper profile of the engine nacelles, better steamlined than on the planes of series Ar 234 B. I made it by addition putty. Forms resumed several times... It is long, very long, but the end justifies the perseverance... It will be necessary to me to add the various small air intakes.
To be continued.
Jicéhem
86
Aircraft Modeling / Re: Tauro Macchi C.202
« on: November 23, 2016, 12:26:58 PM »Hi,I hope not! (I'll have to measure this tonight......)
Good work. Bravo !
I've a question to ask : Is the right wing longer than the left one ?
Jicéhem
If wings have the same length, it's an error...
To counteract the engine torque (due at first to the rotation of the propeller) the right wing was a little longer. About 2 mm in 1/48 scale.
Jicéhem
87
Aircraft Modeling / Re: Tauro Macchi C.202
« on: November 22, 2016, 08:31:48 AM »
Hi,
Good work. Bravo !
I've a question to ask : Is the right wing longer than the left one ?
Jicéhem
Good work. Bravo !
I've a question to ask : Is the right wing longer than the left one ?
Jicéhem
88
Aircraft Modeling / Re: Mirage 2000 Heller 1/72
« on: November 09, 2016, 05:26:53 PM »
EC 2/5 Île-de-France unit. OK.
Jicéhem
Jicéhem
89
Aircraft Modeling / Re: Mirage 2000 Heller 1/72
« on: November 09, 2016, 04:47:23 PM »Thanks and much less at top and side
Fortunately...
What will be the unit ?
Jicéhem
90
Aircraft Modeling / Re: Mirage 2000 Heller 1/72
« on: November 09, 2016, 04:20:50 PM »
Hello mate
Good work with a lot of decals.
Jicéhem
Good work with a lot of decals.
Jicéhem