Saturday, April 29, 2023

Northrop XP-79B Finale

 For the finale, my main job was to paint the plane and then add the canopy. Websites were saying it was white, the instructions called the color linen. So I decided to split the difference in that I took Ivory, and add one drop of V's Iraqi Sand which is a light beige color.

Next was the canopy. I found that yes indeed, the canopy was split vertically down the middle. So I was just a matter of gluing the 2 halves together.  They are to be butt jointed together, and I had a piece of Tamiya tape at the ready. I had the two pieces and touched it with some Tamiya thin,seeing the glue run around the joint. I then added the tape to make sure they held until the weld was complete. Thinking so, I gently put it down on the tale and let go. Immediately I felt my finger slowly pull away! What?! Yep. Glue came out of the joint and ran to where my finger was, leaving this very nice finger print. Insert multiple cuss words here. 

While I was waiting for the canopy to dry, I created a little tarmac with the plan of gluing the plane to the ground to eliminate the tail sitting or the need for the little post to hold the plane up. 

After the glue was dry I sanded the sanding marathon, first with some 3M sanding sponges from fine to ultra fine. Then I went into the 1000ths grit. After hours with canopy was smooth again, but there was still a cloudy bit to it that wouldn't go away - even after a few dippings of Future. What I ended up doing was mixing Future with V's Smoke and created a window tinting. It ended up mostly making all the work I did to the interior moot, but the cloudy mark was covered up. 

Thanks for looking. 

 



 

 

 

 

 

 

 

 

 


 

Wednesday, April 5, 2023

The Northrop XP-79B

 I picked up this kit a while ago, just because it fit my  idea of an odd ball plane. It wasn't mentioned on the box that it was a Northrop design until I started to research. 

The military, toward the end of WW2 felt they needed a plane that could ram enemy planes similar to what Germany was rumored to be designing.  Northrop came up with this design complete with magnesium wings to help the plane survive the hit. 

One was built and on it's first trial the XP-79B made its first flight on September 12, 1945, however, 15 minutes into the flight control was lost for unknown reasons while performing a slow roll. The nose dropped, and the roll continued with the aircraft impacting the ground in a vertical spin. There are two accounts of the end. One that test pilot Harry Crosby attempted to bail out but was struck by the aircraft and died. The other that in the spin, with such forces, he was unable to open the door open to bail out. The problem was identified, and Northrop was ready for prototype #2, but they were told with the war over, there was no longer a need for a Flying Ram. 

RS Models, out of the Czech Republic offers the 1:72 scale kit on one sprue with another smaller sprue for the clear windscreen. Directions were exploded views and as I will find out a little vague on where parts actually go. The decals are well done.


 As part of the design, the pilot was to lie prone to better help him with the g-forces. The model comes top and bottom so part of the cockpit area attaches to the ceiling of the plane, the other part on the floor. A box forms the confines of the cockpit.

A bench for the pilot to lay on is to be painted a leather color, and the steering goes underneath the bench. The first vague part comes here. There's no real indication of how far out the wheel sits. So I made my best guess. The color calls for the interior to be "interior yellow." I never hear of this before and thought they meant the zinc chromate color. I only had the green zinc chromate which bears no resemblance to yellow so I painted it lime green (a color which will be changed in the 11th hour).

The tub with two sets of where instruments went. I painted instruments the best I could only to realize that once the halves are glued together no one will ever see them again.  Across the front part of the cockpit more instruments are on a flattened bar.


This let to the problem with the bar and the steering wheel. With no indication of where it went, I had it in my head that it seemed possible for the pilot to be stretched out with his arms holding the wheel on the "outside" of the instrument bar.  

That was until I found this image - - 


 So a little late but the mystery of where the steering wheel went was solved. This solved another mystery of WHY would they make the windscreen in two halves, split vertically down the middle??  Why when it's like that in real life.

But that will come next time after the glue dries and all the clamps come off the plane. Thanks for looking.