Eugen Sänger (22 September 1905 –
10 February 1964)
The pioneer of Spaceplane
(winged access to space vehicle) who inspired us all. Austrian aerospace engineer best known for his
contributions to lifting
body and ramjet technology.
West German concept, Sänger design for a
two-stage spaceplane was named after Eugen Sänger.
With Sänger Program Director, Heribert Kuczera
Sänger’s remarkable design, the Silbervogel ("Silverbird") have relied on its fuselage creating
lift (as a lifting body) to carry it along its sub-orbital path. Sänger also designed the rocket motors that the
space-plane would use. In the design, Saenger was one of the first to suggest
using the rocket's fuel as a way of cooling the engine, by circulating it
around the rocket nozzle before burning it in the engine.
Sänger’s Boost-glide trajectories are
a class of spacecraft guidance and reentry trajectories
that extend the range of suborbital
spaceplanes and reentry
vehicles by employing aerodynamic lift in the
high upper atmosphere. In most examples, boost-glide roughly doubles the range
over the purely ballistic trajectory. In others, a series of skips allows range to be further
extended, and leads to the alternate terms skip-glide and skip
I had chance to see his son in Bremen during the Space Plane and Hypersonic Systems and Technologies Conference in October 2007.
designer & developer of the Russian Space Shuttle Buran.
(Buran ("Буран" in Russian
means "Snowstorm") looks similar with US Space Shuttle but is
entirely Soviet design. Similar design result is mainly due to the laws of
physics and database being the same and shared for all. The main difference is
Buran can fly in automatic mode without any pilot on-board from the take-off of
the rocket to its landing.)
I have met Lozino-Lozinsky in Moscow at
International Aerospace Congress in 1997. (Gleb
as Co-Chair and myself as International Committee Member) Business card I received;
He passed away in November, 2001.
Harry A Scott
Chief Engineer of the National AeroSpace Plane of North American
Aviation/Rockwell International and Executive Vice President of Space Access
recipient of SAE International’s Clarence L. (Kelly) Johnson Aerospace Vehicle
Design and Development Award.
his career, Scott worked on F-86F, F-100D and F-107A fighters, the X-15 rocket
plane and was responsible for the innovative design of the Apollo docking gear
and made zero-gravity flights to observe astronaut operation of the device.
created the configuration and proposal design that won the Space Shuttle
contract by NASA.
several opportunities to have discussions with Harry in person.
memory is Harry’s sketch given to us on our Spaceplane concept based on our explanation. After detailed design works later on, our SSTO Spaceplane design
was close to what Harry figured.
I am keeping in touch with Harry.
HOTOL, for Horizontal Take-Off and Landing, was a 1980s British
design for SSTO (Single-Stage-To-Orbit) spaceplane that was to be powered
by an airbreathing propulsion. Development was being conducted by a consortium
led by Rolls-Royce
and British Aerospace (BAe) based on the concept by Allan Bond.
was a general attitude of reluctance within the British government to take the
lead on a new space launcher.
HOTOL co-creator Allan
Bond and engineers John Scott-Scott and Richard Varvill formed Reaction
Engines Limited (REL) which has since been working on a new airbreahing
engine, SABRE which used alterative designs to work around the Rolls-Royce
patents, and the Skylon vehicle intended to solve the problems of HOTOL.
been developing the core technologies, particularly the engine and its
frost-controlled precooler; initially supported by private funding, but
latterly with support from the European Space Agency, UK Space Agency, BAe, and the US Air Force
Research LAboratoy. As of 2017 REL plan to demonstrate a flight-ready
precooler operating under simulated flight conditions in 2018, and statically
test a demonstration engine core in 2020.
With Allan Bond
With Richard Varvill, Reaction Engine.
With former HOTOL Project Manager, Roger Longstaff
at Skylon System Requirement Review Meeting, August 2010.
With UK Space Agency Director-General, Dr.David Parker
but not least, Masataka Maita
headed Japan’s Spaceplane program. Vehicle design of Single-Stage-To-Orbit Spaceplane powered by Scram/LACE combined propulsion system.
Japan’s representative and Technology Chair of International Space Plane and
Hypersonic Systems and Technology Conference since 1993.
With Roger Longstaff and Thomas Harris
With David Van Wie, Richard Brown and Adam Siebenhaar
With Steve Walker (DARPA Director), Mark Lewis (DoD Deputy Under Secretary / Univ. of Maryland), Jose Longe (ESA ESTEC)
With Kevin Bowcutt (Boeing Chief Scientist for Hypersonics)
Organized several workshops which include International Workshop on Space Plane and Hypersonic Technology (1994),
International Workshop on Spaceplane/RLV Technology Demonstrators (1997)
With William Gaubatz (Delta Clipper DC-X, McDonnell Douglas)
Heinrich Pfeffer (FESTIP, ESA)
William Escher (RBCC, NASA)
Charles McClinton (Hyper-X, NASA)
With Richard Varvill (SKYLON), Johan Steelant (LAPCAT, ESA)
With Francois Falempin (LEA, MBDA), Gennaro Russo (USV, CIRA)
With Johan Steelant, Klaus Hannemann (SHEFEX, DLR)
With Sergey Chernyshev (TsAGI Director-General)
With Paul Czysz (NASP, McDonnell Douglas), Claudio Bruno.
Keynote, The Premier Global Event for the Centennial of Flight, International Air & Space Symposium -The Next 100 Years-