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OrbiterWiki administrator since december 2005

'''Lord of the block list'''
  
A/S/L: 33/M/Wolfsburg, germany

Occupation: Full-time software developer for computer-aided engineering solutions.

Orbiter addon developer since summer 2003. 

N-Mail: Urwumpe(ät)Yahoo(döt)com

We were, We are, and we will be.

==Math formulas==
===Nodal regression===
{|
|-
|<math>P</math>
|Orbit parameter, <math>p=a \cdot (1- \epsilon^2)</math>
|-
|-
|<math>u</math>
|corrected true anomaly, <math>u=\omega + \varphi</math>
|-
|<math>R_E</math>
|mean planetary radius
|-
|<math>J_2</math>
|non spherical gravity term
|-
|<math>i</math>
|inclination
|-
|<math>\omega</math>
|Argument of perigee
|-
|<math>\epsilon</math>
|eccentricity
|-
|}


<math>\frac{d\Omega}{du} = -3\cdot J_{2}\cdot (\frac{R_E}{p})\cdot \sin^2{u} \cdot \cos {i} \cdot [ 1 + \epsilon \cdot \cos{u - \omega}]  </math>

==Current Orbiter projects==
* [[Space Shuttle Ultra]] project
* [[Black Dart]] project (military VTOL spaceplane with FBW and TVC)
* Starstreak (suborbital spaceplane)
* [[Soyuz launchers|Soyuz launcher]] meshes
* [[SRTM]] data-to-mesh converter
* [[Ares V]] and Earth 2018 project

==Technical Drawing Gallery==
Some technical drawings I made, nothing too fancy.

<gallery>
Image:AlphaRescueCapsule.png|Alpha Rescue Capsule
</gallery>