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.  
 
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.