Similar to the SV-2 with shorter wings and thicker wing skins.
It was built of aluminum and featured bonded wing skins.
A spoiler surface in the upper wing skin is raised, to disrupt the airflow and increase drag.
The lower wing skin also found signs of fatigue in the area adjacent to the cracked spar cap.
Firing trials were halted after damage was caused to the lower wing skin by blast from the gun muzzle.
Pull the wing skin off and replace with the new.
The upper and lower wing skins incorporated blisters to clear the ammunition drum.
Construction on the wing skins has been started and soon the main spar will be under construction.
A large hole was also torn in the top wing skin.
The wing skins are formed cold using dry ice, then age hardened to T-42 standards.
