The flight testing of the XR-1 proved troublesome, and although continued testing showed that the design had promise, other, improved helicopters were becoming available before the XR-1 was ready for service.
Pengujian penerbangan dari-XR 1 terbukti merepotkan, dan meskipun pengujian lanjutan menunjukkan bahwa desain memiliki janji, lain, meningkatkan helikopter menjadi tersedia sebelum-XR 1 sudah siap untuk layanan.