Released on = March 14, 2007, 3:04 pm

Press Release Author = Steven Sullivan / Delos Aerospace

Industry = Aerospace

Press Release Summary = Delos Aerospace has Invented an In-Wheel Electric
Motor/Generator System and Method That Will Provide for Safer Landing and Ground
Maneuvers of Aircraft and Eliminates the use of Jet Engines for Taxiing or Other
Ground Maneuvers.

Press Release Body = Ashburn, Virginia, 12 February 2007

INCREASING AIRCRAFT GROUND MANEUVERING EFFICENTCY
USING FULLY INTEGRATED ELECTRIC SYSTEMS

The issue of aircraft ground maneuvering efficiency is associated with managing
trajectories "block-to-block" which is the portion of the aircraft trajectory that
is accomplished on the ground; from "the blocks to rotation" and from "touchdown to
the blocks". In today's system, these trajectory components are not efficiently
conducted or managed, even though they may constitute 20-33% of the time of the
average airline flight (which is 60-90 minutes).

Thus there is a need for an efficient means of conducting such block-to-block
aircraft trajectories.

Our technology provides for the optimal efficiency in aircraft ground maneuvering by
incorporating the use of in-wheel electric motor/generators that are capable of
producing sufficient power density to effectively maneuver aircraft of any weight on
the ground, and provide for safer and more effective braking of the landing gear
wheels.

This revolutionary technology is a total systems integration of a fully electric
landing gear and maneuvering system wherein axial flux disk motor/generators replace
the old friction disk technology providing increased braking and maneuvering
capability to the aircraft wherein there are many engineering benefits to
eliminating the heat generated within friction based braking systems.
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This fully integrated electric braking and maneuvering system and method allows for
higher levels of effective braking and maneuvering capability to be applied to
aircraft without the use of jet engines which is a safer and more effective braking
and maneuvering system (forward, reverse and steering) than current systems used at
a reduced overall weight that can also assist in takeoff thus allowing for reduced
thrust levels required by the jet engines wherein these applications reduces the
required fuel weight by 1200 lbs for average airline flight times of 60-90 minutes
and over 4,000 lbs for larger airliners that might fly out of LaGuardia Airport for
example thus directly impacting payload and range capacity.

Currently jet and turbofan aircraft require tow motors or tugs to push the aircraft
backward into the designated taxiway. This is an added operational cost in ground
support material and personnel for the airline or cargo operator. By eliminating the
need to wait for, attach, and detach tow motors or tugs aircraft can enter and exit
gates faster thus reducing between-flight turnaround times which directly impacts
Airport capacity utilization and airline operators' revenue. This means that on many
routes, total trip times can be reduced, enabling an aircraft to make more flights
per day thus increasing an airline\'s capital-asset utilization rate.


Our technology can provide for increases in airline operators' revenue by
eliminating fuel burn during ground maneuvers, reduce fuel burn at takeoff, reduce
gate charges, reduce turnaround cost, and provide for reductions in MRO costs due to
brake system overhauls and reduced maintenance frequency of the jet engines thus
ensuring that airplanes spend more time serving passengers.

There is the added benefit of reduced air and noise pollution in and around airports
thus significantly impacting the environment that is of a growing concern among
many.

Overall operating cost savings from incorporating our technology are expected to
total 2.6 to 2.8 million USD a year per commercial airliner aircraft.

Principal benefits of our technology include:
. Fuel savings. With our technology the primary engines need be turned on only at
the end of the runway, immediately before takeoff, and can be turned off immediately
after landing. Our technology will brake the aircraft upon landing by converting the
kinetic energy of the aircraft into electrical power and store that electrical power
onboard the aircraft using lightweight nano enhanced ultra-capacitors. The stored
energy is later used to motor the aircraft wheels in the taxiways and runways. For
many short-haul routes (60-90 minutes), taxiing and takeoff-waiting times can be a
large fraction of total trip time 20-33%, and the fuel savings on these routes can
be substantial for large commercial airline operators.

. Faster flight turnarounds. By eliminating the need to wait for, attach, and detach
tow motors or tugs, aircraft can enter and exit gates faster, reducing
between-flight turnaround times. This means that on many routes, total trip times
can be reduced, enabling an aircraft to make more flights per day and increasing an
airline\'s capital-asset utilization rate.
. Decreased operational cost due to the fact that there are no friction disk to be
replaced due to wear as magnetic torque is used to brake the aircraft wherein there
are no friction disk wear items thus no need to overhaul the braking system and thus
no need to remove the aircraft from service.
. Reduced engine wear. By reducing the throttle setting on the jet engine during
assisted take-off and reducing the time the engines are running, wear-and-tear are
reduced on the aircraft engines thus reducing the frequency of mandatory engine
maintenance.
. Reduced airport charges for towing and gate usage.
. Reduced air and noise pollution in and around airports. The environmental benefits
of our technology for airport neighborhoods will be substantial.
. Elimination of tug stress damage to aircraft. Aircraft are occasionally damaged
when a tug stops but the aircraft it is towing (with much larger mass) does not thus
applying stress damage the aircraft; our technology eliminates this risk and cost.
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Any airplane can be equipped with our technology including civilian craft such as
Boeing and Airbus jetliners, regional and business jets, as well as military
aircraft ranging from transports and refueling craft, bombers, fighters and unmanned
aerial vehicles UAVs.

Our technology when implemented into aircraft represents a radical advance in
landing gear technology and design implementation, eliminating the same materials
and components that have existed for decades. Our major advance is in implementing a
fully integrate electrical motor/generator system within the landing gear wheels for
use in a fully electrical aircraft landing gear system that has a feedback
capability that is 1000 times faster than hydraulically actuated systems and is 100
times faster than the latest electrically actuated systems thus the effectiveness of
the ABS and automatic braking are much higher adding to the safety level of the
aircraft.









Conventional friction based brakes actually prevent effective levels of braking from
occurring at very high power levels due to the fact that friction based systems are
much slower in feedback capability than that of a fully electrical system and the
braking capacity diminishes as the friction based brakes heat up and is known as
brake fade. As a result, our technology provides for a higher level of effective
braking and is more capable to meet the challenge of braking a large commercial
aircraft, whether it is a 737, 787 or even an A380. Friction-based brakes can also
affect the aircraft turn around time as they require time to cool down before they
can be used again (30 minutes or more).

The heat generated by the friction disk within the wheel hub migrates to the tires
and causes the tire to balloon or stretch and requires additional material to
prevent the tire from exploding thus adding weight to the tire structure. Thus
redesign could allow for further weight reductions in tire and wheel structures
further improving fuel burn.

There is the added benefit of adding gyroscopic stabilization to the aircraft by
spinning up the landing gear tires prior to touchdown minimizing wake vortex wind
influence caused by preceding large aircraft thus increasing the level of safety for
smaller aircraft which could allow for shorter separation distances for aircraft
thus further increasing airport capacity.

Also by matching the tires rotational velocity with the relative ground speed the
impulse of the landing event which normally causes the tires to spin up from zero
rpm to over 1000 rpm in one half a second is eliminated thus reducing the impulse
stress on the aircraft landing gear and airframe which also increases the passenger
comfort by reducing the physical jolt experienced during a landing event with the
added benefit of starting out in a rolling friction state as opposed to a sliding
friction state as with current friction disk braking systems. Effective braking only
occurs in the rolling friction state thus effective braking can be implemented
immediately at touchdown not a few moments later when the tires are up to speed as
is the case when landing on a contaminated landing surface such as that due to ice
and/or snow.


For additional information on our aircraft braking and maneuvering systems
technology, visit www.DelosAerospace.com.
Delos Aerospace offers intellectual property (IP) consulting to the aerospace
industry to increase the value of your IP investment by improving claims structure
and provide possible applications outside of the discussion or claims structure of
patents that has proven to significantly impact the value of IP investments.

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Web Site = http://www.DelosAerospace.com

Contact Details = CONTACT:
Steven Sullivan
Delos Aerospace, L.L.C.
P: 703.726.9370
F: 703.726.9747
Steven.Sullivan@DelosAerospace.com
www.DelosAerospace.com