This sound effect can be found on Warner Bros. Sound Effects Library, which was made by Sound Ideas. The 2nd dive scream is the same as CARTOON, AIRPLANE - PROP PLANE POWER DIVE SCREAM (already a variant of SIREN - STUKA SIREN HOWL). Links: https://soundeffects.fandom.com/wiki/Sound_Ideas,_CARTOON,_AIRPLANE_-_PROP_PLANE_POWER_DIVE_SCREAM,_TWO_TIMES#Audio_Samples