Resolving Landing Craft Air Cushion Main Engine Starter Valve Corrosion Issues
- Resource Type
- Authors
- James D. Hampshire; Lee Myers
- Source
- Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B.
- Subject
- Engineering
Starter
Bleed air
business.industry
Auxiliary power unit
Airflow
Safety shutoff valve
Propulsion
business
Air cushion
Automotive engineering
Corrosion
Marine engineering
- Language
The Navy’s Landing Craft Air Cushion (LCAC) hovercraft vehicles use two Auxiliary Power Units (APUs) to provide bleed air to start the main propulsion TF40B or ETF40B engines. Each main propulsion engine is assigned a normally closed starter shutoff valve to permit APU bleed air to pass to the main propulsion engine air starters. These starter shutoff valves are seizing due to corrosion and prohibit airflow needed to start the main engines. This paper will describe the planned study to identify and resolve starter shutoff valve failures.