Tupolev ANT-21
... that the Tupolev ANT-21 was rejected by the Soviet Air Force because it was not armed with recoilless rifles?
... that the <b id="mwDMo"><a href="./Tupolev_ANT-21" id="mwDMs" rel="mw:WikiLink" title="Tupolev ANT-21">Tupolev ANT-21</a></b> was rejected by the <a class="mw-redirect" href="./Soviet_Air_Force" id="mwDMw" rel="mw:WikiLink" title="Soviet Air Force">Soviet Air Force</a> because it was not armed with <a href="./Recoilless_rifle" id="mwDM0" rel="mw:WikiLink" title="Recoilless rifle">recoilless rifles</a>?