The U.S. aircraft register, updated daily · Carbon Free Flight by 2050
Maker · data as of October 2, 2026

William E Siperek

1 aircraft on the U.S. register. The most recent registration was April 27, 2023.

Models

SPEZIO SPORT DAL-11

SPEZIO SPORT DAL-1

States

Texas1

Registrations by year

0001112023

Aircraft newest first

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N92JM William E Siperek
SPEZIO SPORT DAL-1
Fixed-wing, single engine Individual owner
Texas
Experimental 2023-04-27 Valid