The aircraft first flew in this form in February 1928.

It first flew in this form on 1 May 1964.

Two of the 450 prototypes were converted to this configuration, and first flew in this form on August 22, 1997.

The aircraft first flew in this form on 17 March 1939.

The R.S.4 was first flown in this form on 13 June 1951.

It first flew in this form on 12 June 1960.

The modified aircraft first flew in this form in early 1917.

The Tunnan first flew in this form in 1948.

It first flew in this form on 4 October 1933.

It was first flown in this form on 3 October 1914.