Description
Marathon Norco features an entire family of Fixed Length, Telescopic, and aircraft folding struts – Folding Hold Open Rods (HORs) featuring Locking Collar (Pull Then Lift Technology) and multiple interface methods (Rod End Bearing, Couplex, and Universal Joint) for a wide variety of nacelle applications including traditional Receiver/Spool and Passive/Zero Wear Receiver.
- Several MNAI Hold Open Rods incorporate our patented damping technology to control the rate of extension and retraction based on a specified load range.
Our current line of HORs
- Single Stage HOR – One lock collar actuated to extend or retract the Hold Open Rod. Can be permanently attached or stowed on the cowl.
- Two Stage HOR – Two locking mechanism’s and three tubes. Can be permanently attached or stowed on the cowl
- Fixed Length HOR – Typically used along with a Couplex where the rod can be stowed away and then raised up and clipped into a receiver when the door is opened.
- Folding Hold Open Rods – Typical for access door panels
Current Types of Locking Options
- Extend then Pull (no unlock under load) – Cowl Door must be raised, relieving the load on the Hold Open Rod, before the lock collar can be actuated
- Pull then Lift – Designed to hold ultimate load after unlocked and to automatically unlock after load is removed with no collar operation.
- Turn then Pull – Ensures no accidental unlock of release collar. Good for areas with higher than normal snag or accidental grab potential.
- Damping Capability (Hydraulic & Mechanical)