It took only half the anticipated amount of time to get from initial design to mass production, greatly increasing efficiency. When this plane came onto the market, many people remained skeptical, and there was quite a controversy when some defects came to light after formal flying had begun.
當這部沒有「試飛」就直接量產的飛機問世後，許多人都抱持著懷疑的態度，甚至當正式飛行後傳出發現瑕疵的消息時，輿論都為之譁然。