Only some Eagles have this capability (according to dialogue in War Games). Used in Earthbound (with a round corrugated seal & red stripes: "Vacuum chamber"), Guardian Of Piri (without seal), The Testament Of Arkadia (also without seal), Collision Course, Space Brain & War Games (tube is not seen).
Fixed to top superstructure. Used in The Metamorph. Glimpsed in the Eagle hangar in Space Warp.
Fixed to side of pod. Used in New Adam, New Eve (the far side boosters are only rough models and have no engine bells; only the near side ones are detailed). They are in the Eagle hangar (minus engine bells) in Space Warp & The Seance Spectre.
Used in Collision Course to carry nuclear charges. May be fitted to Eagles with standard pods (Eagle 1) or without a pod (Eagle 10).
Grab used in Space Brain with a winch pod.
Fixed to top of leg unit. Used in The Exiles to recover capsule. Also used on refuelling Eagles in The Rules Of Luton & Space Warp to carry fuel capsule, to refuel another Eagle. The rear pod of Eagle 2 has a special open panel section for these two episodes.
The grab arm in The Exiles (attached to both the Eagle 1 and 3 models)
The refuelling arm on Eagle 1 swings back at the end of Space Warp
The refuelling arm on Eagle 3 in The Rules Of Luton
Used to lower astronauts to surface. Seen in The Bringers Of Wonder pt2
Seen in The Immunity Syndrome. It is released at an altitude of 110,000 feet (ie 33km) from a cradle on the top of an Eagle.
A retractable turret in the top superstructure of the Eagle. Used in The A B Chrysalis (controlled by a hand held trigger last used in Catacombs Of The Moon), Devil's Planet & The Seance Spectre (controlled by the laser control last used in The Exiles, firing a green beam).
Only some Eagles have lasers (War Games refers to the "last laser equipped Eagle", The Testament Of Arkadia specifies an "unarmed survey Eagle"). The beam seemed to originate immediately under the command module. Used in Black Sun (white beam against black sun, orange bolt against forcefield), Alpha Child (yellow-orange beams), End Of Eternity (blue beam), The Infernal Machine (yellow beams), The Mark Of Archanon and The Dorcons (green beams).
According to Devil's Planet the Eagles carry missiles. This capability is never seen in the series (unless some of the "laser" beams seen are in fact missiles - for instance, the orange bolt fired in Black Sun which is clearly slower-than-light).
Various shields are used: anti-gravity screens (Black Sun, War Games & visible as a yellow cone around the command module in Ring Around The Moon), radiation screens (Collision Course), glare shield in window (Catacombs Of The Moon), heat shields (The Immunity Syndrome), plus Eagle 3 has a special protective storm shield in The Mark Of Archanon.
In The Full Circle & The Testament Of Arkadia Eagles carry a moonbuggy (it can be seen in the compartment behind the passenger section with various boxes).
Copyright Martin Willey. Thanks to William Hughes