All the Spitfires in 144 Wing, which did include some early IXe airplanes that were not equipped with the .50 caliber machine guns (which only made their appearance in the fall of 1944 due to production delays of the weapons), removed the outer .30 caliber weapons to save weight since the rifle-caliber weapons were not considered particularly effective either in strafing or air combat.
根据2014年一个模型作者的简介,Johnson麾下的144所有的喷火9c和早期喷火9e都做过了火力改装,撤掉了机翼最外侧的.303机枪,并且至少Johnson自己的喷火把20mm机炮挪到了机翼安装位的外侧,而且有可能这类改装在其它喷火9上也比较常见。但是我网上找不到任何已知的出版物来源,有可能需要去找那些考证出版物实体书才能知道了
