Delta IV Medium variant 1:96 scale (AXM version)

This is the second part of my Delta IV paper model series. On my previous post I described the Delta IV Heavy version.
The Delta IV Medium variant has only one Common Booster Core, and it can fly in 4 different configurations based on the diameter of the second stage and the number of solid rocket motors (SRM) attached:

-Medium (4 mt diam and no SRMs)
-Medium + 4-2 (4 mt diam and 2 SRMs)
-Medium + 5-2 (5 mt diam and 2 SRMs)
-Medium + 5-4 (5 mt diam and 4 SRMs)

The photo shown below demonstrates all the parts that conform my Delta IV Medium model.

image

The hardest part in the design process of this model was the attachment parts for the SRMs, and my research was based using several photos from the real Delta IV medium. The SRMs parts will use a rod that inserts into the upper attachment points on the CBC, and a special part that snaps in place with a counterpart on the lower attachment point on the CBC.

Here is a closeup of the SRMs that shows the attachments described above. Note that these are prototypes, therefore the details will vary slightly from the final product.

image

image

image

The Solid Rocket Motors in a 4-2 or 5-2 configurations are attached to points 1 and 2 indicated as on the lower segment of the CBC. When all 4 SRMs are attached, they will go to their respectives attachment points on the CBC as indicated. Pairs 1 and 2 usually have a small segment that looks like a skirt covering the nozzle. Pairs 3 and 4 lack this “skirt” segment.
The photo below shows the difference of the SRMs with and without the skirt covering the nozzle.
Some of the photos from the early missions show that there are no numbers on the exterior of the SRMs, while on recent mission, although not all, each SRM has a number on the outside above the nozzle area.

image

These photos show the corresponding locations for the SRMs.

image

image

image

Shown below is the detail of the upper attachment point on the CBC.

image

image

The Medium variant has 2 second stage configurations, a 4mt and a 5mt diameter stages.
Below is a comparison of both second stages (Left: 4mt, Right: 5 mt)

image

And here are some of the Delta IV Medium models from my Delta IV page. This is a collection of Delta IV models that will continually grow.

image

image

image

image

image

image

image

image

image

image

image

image

image

The collection keeps growing. Now we have a “FULLHOUSE” of Delta IVs.

image

Download models are available at my website (click here).

Advertisements

2 responses to “Delta IV Medium variant 1:96 scale (AXM version)

  1. Great work again, Alfonso. With the Common Booster Core as a base, it of course is not that hard to provide in all the other variants and flown versions but the fact that you do just that makes it even more awesome. Great job on the solids, too. I like that you took the time to try and figure out how they actually attach to the booster. Accuracy is what makes your models stand out.

    • Thanks for your kind words. I really appreciate it. You know I enjoy doing this, but at the same time this is the way I get to learn more about these vehicles .

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s