Wednesday, November 2, 2016

Noris Raketen Aggregat - 9, Background

This is the Noris Raketen AGGREGAT - 9.

I'm building this one for a client.
I've seen them on Ebay but never put in a bid. Like the Chinese made MPC rockets, I'm always curious how rocketry is done in other countries.

There's not much available online about the rocket, but I did find this:
The Aggregate 9 (A-9) / Aggregate 10 (A-10) was the last in the Aggregate series of missile designed and developed by Dr.-Ing. Wernher von Braun in 1944 under the leadership of Dr. Walter Robert Dornberger, at Army Research Center Peenemünde.

The Aggregate 9 (A-9) / Aggregate 10 (A-10) was a two-stage intercontinental ballistic missile (ICBM) which design can be traced back to the early 1940s some of the people who assisted in the design were Ludwig Roth, Hermann Oberth, Walter Thiel. However work resumed in 1944, under the codename of Projekt Amerika. The Aggregate 9 (A-9) / Aggregate 10 (A-10) was 26 m long by 4.75 m in diameter and had a take off weight 100 tons and used the following engines first stage 1 × liquid fuel rocket engine producing up to to 30,500 kg of thrust. second stage 1 × liquid fuel rocket engine producing up to to 152,500 kg of thrust. Which gave a maximum thrust of 183,500 kg for 50 seconds of burn time.

There's not much to go on in the instructions and all the copy is in German.
The two pages shown here are specifically for this build. The inside and cover pages are generic looking a little like a condensed Estes Yellow Pages.

Here's the engine mount directions.

Page two shows the fin placement, launch lugs and cockpit locations.
That's about it!

I went to Google Translate and typed in most of the German copy.
Many of the words didn't translate so I'll have to wing it!

The box copy exclaims:
Lehrreich! = Instructive!
Raketenfliegen Ganzjahrig Erlaubt = Allowed rockets fly year round!
Sicher! = For Sure!
Interessant! = Interesting!
Immer Wieder Verwendbar! = Always Reusable!

This should be fun! = Das soll Spaß machen!


  1. In this case "sicher" means "safe".
    Let me know if you need any help!

    1. Thanks Leo,
      Your translation makes more sense. The Google Translate "For Sure" made it sound like a valley girl wrote the box descriptions.

  2. Interesting that this is basically a "profile" scale design - looks like you could modify a typical V-2 model into an A-9/A-10 model. Building a functioning 2 stage A-10 would be a real challenge!

    1. Hi Openroad,
      I don't know if I'd modify an Estes V2 or ever fly this Norris Raketen model. 45 grams of clay nose weight seemed like a lot even with a D engine. This one probably weighed half a pound when finished.

  3. Interesting to note that the wing planform is quite similar to a very narrow delta/ogive. Not sure if at the time the A9 was designed that the delta wing planform actually performs much better than thought due to vortex effect at high angle of attach (i.e. nose-high attitude) -- something that was discovered in the XF-91 research plane.
    Aircraft like the Handley Page HP.115 were built to investigate low-speed characteristics of narrow delta wings ( ) -- something they'd planned for use on SST. The Concorde and the Tu-144 utilized similar effect in low-speed flight.
    Along those same lines LERX (leading edge root extension) -- the narrow delta-like portion at the front of the wings on aircraft like the F-5, F-16, YF-17, F-18, etc. help generate a vortex that keeps airflow attached to the upper wing surface at high angles of attack -- at angles much higher than would otherwise be possible without the LERX.

  4. One wonders if Revell used the A9/A10 as inspiration for their XSL-01 Moon Rocket model kit ( ). It does a feature a partially "submerged" vehicle within a cluster of booster rockets.

  5. BTW not sure if you seen this page on the A9/A10

    1. Thanks Naoto,
      For all the links and information.
      I hadn't seen the Revell Moon Rocket kit built before. The astronautix page was a good read.