An official website of the United States government
Here's how you know
A .mil website belongs to an official U.S. Department of Defense organization in the United States.
A lock (lock ) or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

Home : Articles
Would you stake your life, right now, on the condition of your equipment?
NEWS | April 13, 2023

RQ-7B Shadow: Launcher Needs Maintenance Too

BLUF: The launcher must be checked regularly for proper nitrogen pressurization before launching the Shadow.

Photo by Jamal Wilson
Mechanics, the RQ-7B Shadow launcher is a critical component of the air vehicle (AV) system. A lack of proper launcher maintenance and not keeping enough nitrogen pressure in the accumulator and the nitrogen tanks can lead to the loss of an AV. The pressure must be maintained because temperature changes and nitrogen leakage can reduce pressure over time.  
Test Your Knowledge

How much do you know about launcher maintenance? Here are five questions from the U.S. Army Combat Readiness Center’s Flightfax (Mar 23) that will test your knowledge and help you get more into your TMs for care.
  1. Nitrogen pre-charge pressure is temperature sensitive. A 22°C (40°F) temperature variation will result in how much of a pre-charge pressure variation?
  2. A higher pre-charge pressure is required when launching with the tail wind. True or False?
  3. How long must you wait for the bottle to equalize before servicing the launcher nitrogen?
  4. After servicing the nitrogen, how long must you let the temperature and pressure settle, in a near consistent temperature environment?
  5. How often must the launcher’s nitrogen system be vented or purged to 0 psi?
To check your answers and learn the specific TM reference, click HERE.
Want to get better search results faster? 
Click the link below to access our "how to" guide
After entering a keyword, you must hit or click the Search bar/box below for the function to work.
Simply hitting Return won't yield results.
Note about links to archive articles

If you come across a link to a pre-2014 PS Magazine issue or article that uses LOGSA in the web address (URL), use this link instead:
For issues/articles from 2014 and after, click on the Archive/Index tab in the top menu of this website.

BE ADVISED: With the migration to Army365, emails in older articles may still reflect an address. To update, change the domain to