The new High Altitude and LOng Range Research Aircraft (HALO) research aircraft heralds a new chapter in the history of German atmospheric research and Earth observation. HALO is based on a Gulfstream G 550 ultra long range business jet. The combination of range, cruising altitude, payload and comprehensive instrumentation make the aircraft a globally unique research platform.
DLR (CC-BY 3.0).
The HALO (High Altitude and LOng Range) research aircraft is based on the ultra-long-range G 550 business jet produced by Gulfstream Aerospace. With a range of more than 8000 kilometres, measurements on the scale of continents are possible; the research aircraft can reach all regions, from the poles to the tropics, and remote areas of the Pacific Ocean.
The ACRIDICON measurement flights lasted about seven hours. Among other things, the analyses included how clouds in clean rainforest air differ from those found over polluted and deforested regions. The image shows the nose boom of the HALO (High Altitude and LOng Range) research aircraft as it approaches a disintegrating storm.
It is not standard practice for DLR test pilots to fly so close to large storm cells, sometimes even penetrating larger cloud formations. The HALO pilots performed five different scientific flight patterns, ranging from low altitude flights above the Brazilian rainforest to altitudes in excess of 15 kilometres.
As part of the ML-CIRRUS mission, HALO will complete a total of 12 measurement flights by the end of April 2014. Between now and 2018, a further eight major scientific missions are scheduled for HALO, and these will either be funded by the DLR or supported by them as a partner.
The HALO high-altitude research aircraft (High Altitude and Long Range Research Aircraft): starting in late 2008, this modified business jet, a Gulfstream G 550, will join the DLR aircraft fleet in data-gathering flights around the globe.
HALO fly-over: At 22 metres high, HALO flies over the experiment. In the smoke, the two wake vortices are visible.
An additional container for scientific instruments is installed underneath the fuselage and wings.
The HALO (High Altitude and LOng Range) research aircraft is based on the ultra-long-range G 550 business jet produced by Gulfstream Aerospace. With a range of more than 8000 kilometres, measurements on the scale of continents are possible; the research aircraft can reach all regions, from the poles to the tropics and remote areas of the Pacific Ocean. Its maximum flight altitude of about 15 kilometres also allows for measurements in the lower stratosphere, outside the tropics.
The 'belly pod' under the fuselage can accommodate scientific instruments.
Up to 15 universal racks for scientific instrumentation can be accomodated in HALO's cabin.
Additional containers for scientific instruments can be attached under the fuselage and under HALO’s wings.
The HALO project was made possible by the Max Planck Society, members of the Helmholtz Association of German Research Centres and various other scientific institutes in the atmospheric research sector. In total, 31 research institutes are involved in the project.
Aero-Art Frank Herzog.
31 research institutes are involved in the HALO project.
Aero-Art Frank Herzog..
HALO is 31 metres long - 1.6 metres account for the nose probe. It has a height of 7.9 metres and a wingspan of 28.5 metres.
HALO has a range of over 8000 kilometres and can reach altitudes of more than 15 kilometres.
The high-altitude research aircraft HALO (High Altitude and Long Range Research Aircraft): The modified business jet, a Gulfstream G 550, landed on 21 January 2009 at its home airfield in Oberpfaffenhofen.