on 31 October. The deliveries will have extended into 1939; op 2 September 1939 all GRDIs had attained their organic ZT 3 strength. To create sufficient room with the ZT 3 the hull was raised somewhat; the roof plates on the sides and front sloped towards the apex of the vehicle where a cast rotatable cupola provided the commander some height to observe his surroundings, in what was otherwise a very low and sleek construction. The gun was placed to the right of the driver with a co-axial 7.5 mm machine-gun to its left. There was an ammunition stock of eighty shells and 1200 rounds of 7.5mm ammunition. As the position of the normal air intake was now occupied by the gun, a large roof ventilation grille was present above the third crew member, the gunner/loader. The fighting compartment was very cramped. No radio was present. Radio communication vehicles Renault ADF 1 While AMR platoon commanders used an AVIS-1 vehicle with an ER29 radio set — in theory 57 were equipped with one, though in practice it was often absent — squadron commanders were in need of a vehicle with two sets: one to communicate with the platoons, the second to contact higher command levels. On 15 June 1934 Renault was asked to design a single prototype, to be delivered before 1 February 1935. On 15 October 1934 a second was demanded and eventually in 1934 eight such vehicles were part of the first order, N° 87438 - 87445. The second order in 1936 included a further five vehicles, N° 95870 - 95874, bringing the total to thirteen. The type was to resemble the standard gun tank, to avoid making it conspicuous: command vehicles are a standard priority target of enemy fire. For that reason the enlarged radio compartment was in the form of a superstructure that looked like a rotatable turret — having the general form of the AVIS-2 but without the asymmetry — but in reality was fixed to the hull. In the front of the "turret" a small gun mantlet was present, that normally lacked any armament but in an emergency situation could be fitted with the portable FM 24-29 machine-gun that was part of the crew equipment. To make sufficient room for an added third crew member, the radio operator, the gear box was moved to the front of the vehicle. The project was accordingly originally