<a href="https://en.wikipedia.org/wiki/Schleicher_Ka-4_Rh%C3%B6nlerche_II" class="extiw" title="en:Schleicher Ka-4 Rhönlerche II">Schleicher Ka-4 Rhönlerche II</a> OO-KEI  op de Keiheuvel Aeroclub Fly In 2015.
<a href="//commons.wikimedia.org/wiki/User:Ad_Meskens" title="User:Ad Meskens">Ad Meskens</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>