Variants
- XR-1
- First prototype; one built.
- XR-1A
- Second prototype with increased cockpit glazing and improved engine; one built.
- YR-1A
- Seven pre-production aircraft ordered; contract cancelled before any completed.
- PL-4
- Proposed armed variant of the XR-1, fitted with four machine guns in a reprofiled nose.
- Piasecki PA-2B
- Proposed tiltrotor based on XR-1 airframe; not built.
Read more about this topic: Platt-Le Page XR-1
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