Variants
- XLB-3 - original version with Liberty V-1410 engines (1 built)
- XLB-3A - version with Pratt & Whitney R-1340 engines (1 converted from XLB-3)
Read more about this topic: Keystone XLB-3
Famous quotes containing the word variants:
“Nationalist pride, like other variants of pride, can be a substitute for self-respect.”
—Eric Hoffer (1902–1983)