I have performed two searches - a photo search and also an FAA NC number search and failed at both to identify this pusher airplane. My family photo says it was taken by my mother at the Chicago airport in September 1937. The NC number appears to be NC 15574 and I've tried several variations including dropping the "1" and trying "9" for the "4" but could not get an FAA NC match. Your assistance in identifying this airplane and anything about it is greatly appreciated.enter image description here

  • $\begingroup$ If this is supposed to be a family photo taken by your mom, why does it have a copyright watermark with your name on it? $\endgroup$ Feb 6, 2021 at 10:02
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    $\begingroup$ My mother passed away at 100 years old two years ago. She was an avid photographer and aviation enthusiast, which she passed on to me, and she also passed on all of her photography to me, over 30,000 photographs and slides. I inherited the copyright from her as curator and as you noted her, give her credit for her photography. $\endgroup$ Feb 7, 2021 at 12:20

1 Answer 1


That is a Stearman-Hammond Y-S1, registration NC15524, construction number 309.

The remains of the aircraft are now owned by the Dutch aviation museum Aviodrome. They are planning to restore one of the four Stearman-Hammonds they have into flyable condition. This project is running since 2007, and is progressing very slowly.

A picture of a Stearman-Hammond Y-S1

source: Smithsonian National Air and Space Museum

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    $\begingroup$ yep, also the number is 15524. Destroyed on 4th nov 1941 $\endgroup$
    – Federico
    Feb 5, 2021 at 7:54
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    $\begingroup$ @Federico, where did you find that the aircraft was destroyed in 1941? $\endgroup$
    – DeltaLima
    Feb 5, 2021 at 8:18
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    $\begingroup$ According to the FAA registration webpage, the S-H Y-1S was deregistered Nov. 4, 1941 and listed as destroyed. DEREGISTERED AIRCRAFT Deregistered Aircraft 1 of 1 Aircraft Description Serial Number 309 Certificate Issue Date 10/25/1941 Manufacturer Name STEARMAN-HAMMOND Model Y-1S Year Manufacturer 1937 Cancel Date 11/04/1941 Reason For Cancellation Destroyed Type Registration Partnership Aircraft Registration Prior to Deregistration Name GREEN A B & SABIN GLEN L Street MUNICIPAL AIRPORT City BILLINGS State MONTANA Zip Code 59101 Country UNITED STATES $\endgroup$ Feb 5, 2021 at 10:05
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    $\begingroup$ @FreshBreeze thank you. The FAA registration webpage was down when I checked earlier. $\endgroup$
    – DeltaLima
    Feb 5, 2021 at 10:09
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    $\begingroup$ Some other pictures: google.com/… $\endgroup$
    – Hot Licks
    Feb 5, 2021 at 20:15

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