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The Grimeton station had a huge multiply-tuned flattop antenna 1.9 km (1.2 miles) long consisting of twelve (later reduced to eight) wires supported on six 127 m (380 foot) high steel towers, fed at one end by vertical feeder wires extending up from the transmitter building.
Vertical polarized VHF-UHF biconical antenna 170–1100 MHz with omnidirectional H-plane pattern. Omnidirectional radiation patterns are produced by the simplest practical antennas, monopole and dipole antennas, consisting of one or two straight rod conductors on a common axis.
It had a conventional undercarriage with a pair of single mainwheels and a tailskid, but the mainwheel mounting was unusual, a wide-chord faired inverted T-shaped pylon. The engine was a 224 kW (300 hp) Hispano-Suiza V-8 , cooled by a pair of Lamblin radiators placed horizontally side by side below the fuselage.
A radiator is a device that transfers heat to a medium primarily through thermal radiation.In practice, the term radiator is often applied to any number of devices in which a fluid circulates through exposed pipes (often with fins or other means of increasing surface area), notwithstanding that such devices tend to transfer heat mainly by convection and might logically be called convectors.
There are two, one vertical (DRSA-V) and one horizontal (DRSA-H), for vertical and horizontal respectively (with respect to the coordinate system of the spacecraft bus). The membrane that makes up the DRSA is a coated Kapton membrane. Other thermal elements on the outside include a small radiator for the battery.
As with other Thornycroft vehicles the radiator surround was a massive casting (in aluminium, to save weight) topped by a brass header tank with the "Thornycroft" name prominently cast into it. A distinctive feature of the Hathi, appropriately giving its elephantine appearance, was the extreme width of the bonnet.