<p>Designed and built by Instytut Szybownictwa in Poland, the IS-4 was a single seat aerobatic glider. The type first flew in 1949. 37 were built.
c/n 004.
On display suspended in the new entrance building at the Muzeum Lotnictwa Polskiego
Krakow, Poland.
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23-08-2013
<bdi><a href="https://www.wikidata.org/wiki/Q33132025" class="extiw" title="d:Q33132025"><span title="photographer from the UK">Alan Wilson</span></a>
</bdi>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/ajw1970/14350726061/">IS-4 Jastrząb 'SP-1383'</a>