Voskhod Build Complete

The Voskhod build that I started back in January is finally finished.  I got the main engine bells painted.  Then I drilled small holes at the base of the core and boosters to accept the tab that is on the engine bells.  They were then glued into place with thick CA.  The vernier motors were painted and installed on the core and boosters.  For the core, the full length of the Airfix vernier motors fit within the cavities that were on the sides of the core body.  For the boosters, I had to trim all the part away except for the nozzles.  These then fit into the small recesses at the edge of each booster.  They were also glued on with thick CA.

Then I carefully glued the boosters to the core stage.  I again used thick CA.  I added a small drop at four points for each booster.  One at the tip where the top of the booster is attached to the core body and then at two points for the braces.  I also added a drop of CA at the middle of the crossbar where there is a pin that goes into a hole that had been drilled in each booster body.  The Apex kit did not have that pin on the crossbar that came in the kit.  The actual vehicle did not have that attach point either.  The Airfix part that I was using instead did.  I like that idea as it helps hold the boosters on a bit more securely, and at this scale you cannot see where they meet so it does not distract from model.

Next came a fiddly part of the build where I had to attach the second stage to the truss work on the core stage.  Here I put a small amount of JB Weld epoxy at each pin that I had previously added to the second stage.  I then carefully placed the second stage on the truss.  It took a bit of wiggling here and adjusting there to get it into the proper position.  Each of the four pins had to be behind the top of the inverted ‘V’ on the truss so that the JB Weld could have something else to grab onto.  After letting it cure for 24 hours, it is not securely attached.  But I still want to be careful in handling, since the pins holding it together are tiny.

It now sits on its base.  The steel rod fits nicely into the tube that I built into the core stage.  It is very stable on its base.  It now takes its place in my 1/144 scale rocket garden of manned launch vehicles.  I now only need two more to finish the garden, a Russian Soyuz and a Chinese CZ-2F.  That is until Spacex and Boeing start flying crews to the ISS.

Thanks for reading.

Voskhod Update 2

Now that I have finished the Saturn V and the Lego LM I need to get back to the Voskhod 2 model.  When I last posted about this project, I had assembled the stages and put the photo etched brass truss on the first stage.  Since then all parts have had primer applied and also painted in gray.  Then the bases of the stages were painted with chrome silver.  I then glued the 20 engine bells from the Airfix kit to a piece of scrap wood with white glue.  This will hold them in place while painting yet be easily removable after the paint is dry.

Then I noticed that I needed to move a couple of external pipes on the second stage.  From my reference material they were in the wrong position.  After I did that I then drilled some 1/32 inch holes to mount the antennas on the second stage.  I had done a similar thing with the two antennas on the core booster.  To keep the antennas in the proper position until the CA cured I used a scrap piece of .060 strip stock taped to the side of the model.  The antennas were made with .4 mm rod bent to the proper shape.

Next I started thinking about how I was going to attach the second stage to the truss at the top of the core stage.  The second stage/spacecraft section is solid resin and heavier that the entire rest of the model.  If I was doing it again I think I would try to hollow out some of the second stage and spacecraft to lighten it up a bit.  After considerable trial fitting, cussing and thinking, I came up with a solution that I think will work.  I drilled four 1/32 inch holes in the base of the second stage at four points around the stage where a peak of the ‘V’ from the brass interstage touches the stage.  I then used CA to glue in four short stubs of sytrene rod.  This should help me align the second stage on the truss and also provide a bit of extra surface area to glue the two together.  I’ll glue the second stage to the core stage after I attach the strap-on boosters.

It is getting close to final assembly.  Just needs a bit more paint and adding the engine bells to the core and strap-ons.  I also need to get the base finished.  I have it drilled for the steel rod and the rod is cut to length.  I just need to sand and paint the base.

More to come…

LEGO Apollo 11 Lunar Lander

I’m bored to death waiting for the bubble to dissolve in my eye after my surgery.  My vision in that eye is such that I have a hard time with small items, so that rules out getting back to the Voskhod right now.  However, I did get the LEGO Lunar Module for my birthday.  My eye has cleared to the point where I can see the LEGO parts well enough.

So here is quick build of the LEGO Apollo 11 Lunar Lander.  I love the engineering that goes into these models to make it both a decent representation and structurally sound.

The build begins by making the display base.  Lego Neil showed up to help display the build.  The base is quite strong as usual.  You can see from the build gallery below that the sub structure really helps hold it together.  The craters are a nice touch.  They put in four circular pads for the placement of the LM landing pads.  Look near the flag and you can see Lego Neil’s footprints.

Part 2 of the build is the Descent stage frame.  Here is where they really nail the octagonal shape of the LM Descent stage.  They include representations of the fuel tanks.  They also include the MESA compartment with the opening door and camera.  There is a bay that houses the retroreflector that was placed on the moon.  The connection to the Ascent stage is firmly attached with a clever bracket assembly that firmly connects it to the Descent stage frame.  This allows the Ascent stage to be removed from the Descent stage without fear of tearing everything apart.

The equipment bays are attached at an angle in keeping with the octagonal shape.  They used ball joints and bricks to join them to the frame at an angle.  It is very effective and sturdy.  Lego Neil helps point out some of the cool things in Part 2.

Part 3 of the assembly will complete the Descent stage.  Stickers are provided to add additional gold foil detail.  Lots of gold bricks cover the sides and some of the top.  The legs are attached with struts and ball joints.  That keeps the spindly look of the real LM and makes it easier to connect them to the Descent stage frame.  The representations of the plume deflectors is a bit small but I’d have a hard time doing it better.  The look and feel is similar to the real thing.  Once the attachment of the legs is complete you can place the Descent stage on the base.

Part 4 of the assembly will construct the Ascent stage.  Lego Buzz volunteered to help show off the steps of this part of the build.  It starts off with the center section of the Ascent stage.  More stickers here represent some of the control panels in the real LM.  Next is the front section.  Here is where some of the bigger compromises had to be made.  There just aren’t any LEGO parts that will work exactly for the triangular windows of the LM.  So instead they use a normal windshield and then surround that with a lot of brickwork to give the impression of triangular windows.  Also the LM hatch is a two piece door rather than a single piece.  But, hey, the doors open and close.

Another compromise was in the attitude control thruster quads.  These are placed on rather thin stalks instead of slightly bulkier extensions.  It isn’t horrible, just not quite as representative.  The rear section has some more stickers for control panels and the other two thruster quads.  Notice that the front and rear sections are cleverly designed to be removable so that you can place Lego Neil and/or Buzz inside the LM.  The major antennas are represented and are somewhat positional.

The Ascent stage snaps onto the Descent stage as mentioned above.  It is a nice solid connection, but yet also removable.  Here is a walk-around of the assembled model.  Lego Buzz and Neil have taken their places in the final picture.

This was a fun build, even with one squirrelly eye.  LEGO has done it again with a nice representation of a real space subject.  This one went together much quicker than the Saturn V from a couple of years ago, but is also much smaller.

Thanks for looking and hopefully I’ll be back on the Voskhod soon.