In the 1990s there were many pilot reports by British Airways of close encounters with an unmanned small, golden covered triangular aircraft with no visable means of propulsion. Wingspan was a mere 30 ft across. The MoD denied its existence until much later and then reversed itself and claimed there was only an on-going BAe "project". HALO stands for High Altitude Low Observable and the craft's golden covering is a conductor for electricity! This machine seems to travel within an electrified field and thus the rhythmic humming sometimes heard when the craft was low to the ground, spotted by civilians is electric. In the air, the craft was so silent that British Airways never heard it coming and so almost ran into it several times. It made incredible manoeuvers that no pilot could withstand, very similar to claimed alien UFOs. It is claimed by many aviation experts that HALO uses FFX (Field Effects (FX)) propulsion which generates a traveling field; as such, it can defy the Newtonian laws of gravity. The field can change directions at speed instantaneously and pull Gs that would rip a human pilot apart. Those pilots that fly the ASTRA and other disc or black triangle craft are claimed to be held withing a riser field and can only see using a special helmet that converts images to fly... the human mind not able to follow the sudden changes. Such pilots also breathe claimed MINDEX mixtures to allow the brain to process this type of extreme flight.

Warning: ANY depiction of HALO with a cockpit is false. It is small and unmanned.