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N4780S

Cancelled 2018
Open the Markdown

Deregistered aircraft · 1951 Sikorsky HRS-1 · Pratt & Whitney R1340 series

Open in FAA registry

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Cancelled
July 12, 2018
Status when cancelled
Registration expired, pending cancellation
Serial number
127787
Year built
1951
Type
Rotorcraft
Engine
Reciprocating
Airworthiness
Restricted, other
Airworthiness date
April 8, 1966
Certificate issued
August 5, 1993
Last registry action
September 30, 2014
Mode S code
A5E13B
Owner when cancelled
Whisper Jet Inc
Location
Kirkland, WA
Owner type
Corporation
Airframe modelSikorsky HRS-1ADs, bulletins and aircraft registered nowEngine modelPratt & Whitney R1340 seriesReciprocating

From the FAA registry file of October 29, 2026, cancelled registrations. Owners’ street addresses are left out. The Mode S code belongs to the N-number, not the airframe.