Headlines > News > X PRIZE Opens registration for Lunar Lander Challenge 2007

X PRIZE Opens registration for Lunar Lander Challenge 2007

Published by Sigurd De Keyser on Thu Feb 8, 2007 3:00 am
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X PRIZE today announced registration dates and rules changes for the $2 million Northrop Grumman Lunar Lander Challenge, which will require a vehicle to simulate trips between the moon’s surface and lunar orbit.

NASA, which signed a Space Act Agreement with X PRIZE before the first year’s competition for the Northrop Grumman Lunar Lander Challenge in 2006, will once again fund the prizes through its Centennial Challenges program.

Early bird registration for the 2007 competition lasts until Feb. 28. Regular registration ends March 31, and the final day for late registration is April 30.

The biggest change in the rules will permit each team to repair its spacecraft mid-mission, as long as all tools and supplies are included on the vehicle.

“Last year, teams had to fly the entire mission essentially without any repairs, but we recognize that even in actual spaceflight there is enormous value in planning for and solving for potential problems. When you are running a mission that cannot fail, preparing for mishaps is critical,” said Tom Vander Ark, president of X PRIZE. “Being able to make adjustments and repairs under pressure that allow the mission to continue is now an important part of the challenge.”

The Competition is divided into two levels. Level 1 requires a rocket to take off from a designated launch area, rocket up to 150 feet (50 meters) altitude, then hover for 90 seconds while landing precisely on a landing pad 100 meters away. The flight must then be repeated in reverse – and both flights, along with all of the necessary preparation for each, must take place within a two-and-a-half-hour period. The more difficult course, Level 2, requires the rocket to hover for twice as long before landing precisely on a simulated lunar surface, packed with craters and boulders to mimic actual lunar terrain. The hover times are calculated so that the Level 2 mission closely simulates the power needed to perform the real lunar mission.

The Northrop Grumman Lunar Lander Challenge will take place this October in New Mexico at the Wirefly X PRIZE Cup. Final date and time to be announced.

All teams must be 90 percent privately funded, have the proper permits and be able to operate safely near the large crowds expected at the Wirefly X PRIZE Cup, which is the only annual event where the entire family can see the next generation of spaceships up close and in the sky.

NASA’s Centennial Challenges program promotes technical innovation through prize competitions. The similar mission of X PRIZE is to bring about radical breakthroughs for the benefit of humanity using a philanthropy model based on competition. Plans to return to the moon during the next decade are driving NASA’s interest in the lunar challenge.

In 2004, the Ansari X PRIZE inspired 26 teams from seven nations to compete in building the first privately-funded spacecraft. In the process, the teams spent a combined $100 million-plus on critical research and development in an effort to win the prize. The competition proved that offering a prize is an effective, efficient and economical model for acceleration breakthroughs in science and technology. Based on that success, the X PRIZE Foundation is now expanding to offer more prizes in the space industry, as well as in the areas of health, energy, transportation and education.

To register a team for the Lunar Lander Challenge please contact:
William Pomerantz at Will@xprize.org or 310.587.3355

RULES & REGISTRATION

NORTHROP GRUMMAN LUNAR LANDER CHALLENGE RULES

A.1 Overview

The Northrop Grumman Lunar Lander Challenge is designed to accelerate
technology developments supporting the commercial creation of a vehicle
capable of ferrying cargo or humans back and forth between lunar orbit
and the lunar surface. Such a vehicle would have direct application to
space exploration goals as well as the personal spaceflight industry.  Additionally,
the prize will help industry build new vehicles and develop the operational
capacity to operate quick turnaround vertical take-off, vertical landing
vehicles, which will be of significant use to many facets of the commercial
launch procurement market.

The complete Northrop Grumman Lunar Lander Challenge purse of $2,000,000
is divided into two levels: Level One, worth a total of $500,000, and Level
Two, worth a total of $1,500,000. To win prize money in either level, a
rocket-propelled vehicle with an assigned payload must take-off vertically,
climb to a defined altitude, fly for a pre-determined amount of time, then
land vertically on a target that is a fixed distance from the take-off
point. After remaining at this location for a period of time, the vehicle
must take-off, fly for a pre-determined amount of time, and land again
on its original launch pad. The primary difference between the two levels
will be in the time of flight, the surface terrain at the landing sites,
and the corresponding degree of difficulty presented for precision landing
and servicing of the vehicles.

A.2 Definitions Specific to Challenge

A.2.1 Challenge – The Northrop Grumman Lunar Lander Challenge. Additional
Titling or Presenting Sponsor names may be added by XPF at any time.

A.2.2 Challenge Termination – The Challenge will be offered until such
time as all the Purses have been won, or until the conclusion of the 2010
X PRIZE CUP. This 2010 deadline may be extended at the sole discretion
of NASA. Prize Purses may be supplemented in the future pending availability
of funds at the sole discretion of XPF.

A.2.3 Competition Level – The Challenge is divided into two levels: Competition
Level One, worth a total of $500,000; and Competition Level Two, worth
a total of $1,500,000. The primary difference between the two Levels will
be in the time of flight, the surface terrain at the landing sites, and
the corresponding degree of difficulty presented for precision landing
and servicing of the vehicles.

A.2.4 Competition Venue – The location and duration of the “Wirefly
X PRIZE Cup” event, as determined by XPF.

A.2.5 Demonstration Flights – One test flight of the Vehicle performed
before arriving at the Competition Venue. The flight must be of the minimum
flight time of 90 seconds for Level One and 180 seconds for Level Two.
The flight must be observed by XPF.  The Vehicle may be tethered during
the Demonstration Flight. Any test flight required by the Federal Aviation
Administration may be counted as the Demonstration Flight if desired by
Team, provided it meets the minimum flight time requirement described above.

A.2.6 Flight Attempt – The operation of the Vehicle at the Competition
Venue intended to satisfy all the rules for winning the Challenge.

A.2.7 Finalist – Any Qualified Vehicle that successfully meets or complies
with all Technical Flight Requirements (section A.4) and other rules of
the Challenge for the indicated Competition Level.

A.2.8 Gold Box – A group of systems, which together are referred to as
the “Gold Box”.  The Gold Box shall contain cameras and
sensors used to monitor, record for later playback, and simultaneously
broadcast Flight video and data to an XPF mission control.  All Gold
Box systems must be supplied by Team and must be demonstrated at the Competition
Venue at least 48 hours prior to the Flight Attempts. The mass of the Gold
Box may be counted as part of the required mass of the Payload so long
as the systems are not also essential to the operation of the Vehicle,
as determined by the Official Judges.

A.2.8.1 Video Component - Gold Box must obtain
and transmit acceptable video images from a minimum of two
cameras.  If
possible, team is requested to provide output from three cameras.  One
camera must be a downward facing “landing camera”, and one
camera must image the Logo Cluster and the horizon.

A.2.8.2 Position and Telemetry System – Gold Box must
transmit telemetry data, including a GPS signal, sufficient
to determine the altitude of the Vehicle during flight. Gold Box must provide
accurate readings used by the Official Judges to ensure compliance with
the Challenge rules, including Vehicle position and heading while in flight.  

A.2.8.3 Transmission and Storage System – Gold Box must
provide the appropriate transmitters, antennae, and on-board
storage required both to store these signals for later use and to downlink
these signals in real time to an XPF-provided ground station. All Data
required for Official Judges must be provided in a comprehensible form
at the Challenge Venue. Data formats and the frequency or frequencies used
to downlink must be approved by XPF 30 days prior to the Challenge.

A.2.9 Landing Accuracy – The distance from the Vehicle Reference Point
to a designated target on the landing Point.

A.2.10 Logo Cluster – A pre-defined arrangement of logos, supplied by
XPF, to be placed on the exterior of Vehicle
         
A.2.11 Mean Landing Accuracy – The arithmetic mean average
of Landing Accuracies from all qualifying landings.

A.2.12 Official Judges – Independent Challenge evaluators appointed by
XPF to assure compliance by Team to the rules and regulations governing
the Challenge, validate all measurements required for determining Finalist
and Tie-breaker status, and to determine the relative positions of the
Vehicles for the Level One and Level Two Challenges.

A.2.13 Payload – A 25kg mass that is not propellant or part of the airframe,
structure, flight safety, or other systems that are involved in the flight,
operation, or maintenance of the vehicle.  The Payload must be labeled
and measurable. The weight of the Gold Box systems may be counted as part
of the mass of the Payload, so long as these systems are not essential
to the operation of the Vehicle, as determined by the Official Judges.

A.2.14 Point A – The assigned initial launching and final landing site
for a Team’s Vehicle. Teams will be provided with position coordinates
for Point A within 60 days of the Flight Attempts.  Teams will be
responsible for verifying Point A site positions that are consistent with
their own guidance and navigation system approach and capabilities.

A.2.15 Point B – The assigned landing and second launching site for a
Team’s Vehicle. The geometric center of Point B will be horizontally
displaced by approximately 100 meters but by no more than 120 meters from
the geometric center of Point A. This is the target where the vehicle will
land and be serviced before taking off vertically for its return flight
to Point A. Exact point locations will be assigned by XPF. For Level One,
Point B will be on a relatively flat, hard, and hazard-free simulated lunar
surface without boulders. For Level Two, Point B will be on a simulated
lunar surface, with local slopes and hazards such as boulders. Position
coordinates for Point B will be provided to Teams within 60 days of the
event. General information regarding the nature of the Point B surface
for Competition Level Two will be provided to teams by XPF no later than
60 days before the Flight Attempt. Teams will be responsible for verifying
Point B site positions that are consistent with their own guidance and
navigaton system approach and capabilities.

A.2.16 Private Sources – Non-government (U.S. or other) sources. Money
won in previous years of the Northrop Grumman Lunar Lander Challenge is
deemed acceptable.

A.2.17 Purses – A total of US$2,000,000 (two million U.S. dollars) is
available to be won.

A.2.17.1 Level One First Prize is $350,000 (three hundred fifty thousand
U.S. dollars).

A.2.17.2 Level One Second Prize is $150,000 (one hundred fifty thousand
U.S. dollars).

A.2.17.3 Level Two First Prize is $1,000,000 (one million U.S. dollars).

A.2.17.4 Level Two Second Prize is $500,000 (five hundred thousand U.S.
dollars).

A.2.17.5 Purses not claimed in any given year will carry over to future
years until won or until the Challenge Termination.

A.2.18 Qualified Vehicle – Any Vehicle that has satisfied the Challenge
Conditions as detailed in Sections A.3.6 through A.3.9.

A.2.19 Refueling Operations – Loading of propellant, replacement of motor
cases, propellant grains, nozzles, or combustion chambers, or changes to
control software. No repair or maintenance of flight safety critical items
due to flight-induced damage or maintenance will be allowed. Flight safety
critical items will be determined by the Official Judges of the Challenge
in consultation with the Team Leader.  Refueling operations must
be pre-approved and will be monitored by the Official Judges of the Challenge
for conformance. Failure to conform will disqualify the Flight Attempt.

A.2.19.1 Teams may replace instruments or systems damaged by flight if
and only if spare parts are carried aboard the Vehicle during flight from
Point A to Point B, and if the replaced parts are carried aboard the Vehicle
during flight from Point B to Point A. Such spare or replacement parts
cannot be counted as part of the Payload.

A.2.20 Staging Area – An area provided and designated by XPF wherein Team
will store and prepare Vehicle in preparation for or following a Flight
Attempt. The Vehicle must be in the Staging Area at the beginning of any
Time Period. Hazardous materials intended for use or storage in the Staging
Area must be pre-approved by XPF.

A.2.21 Time Period – A pre-assigned 150-minute period wherein a Qualified
Vehicle may attempt to meet the Technical Flight Requirements.

A.2.21.1 Each Qualified Vehicle will have an assigned Time Period of one
hundred and fifty (150) minutes to safely transport the Vehicle from the
Staging Area designated by XPF to point A, successfully meet the Technical
Flight Requirements (section A.4) as measured by the Official Judges of
the Challenge, and safely transport the Vehicle back to the designated
Staging Area.

A.2.21.2 These Time Periods will be assigned to Qualified Vehicles at
a pre-determined time by a random drawing conducted by the Official Judges
of the Challenge.

A.2.21.3 Qualified Vehicles will be granted as many Time Periods as possible,
as determined by XPF, given the total number of competing Qualified Vehicles
and the total available time for that year’s Challenge. All Qualified
Vehicles will be granted the same number of Time Periods.

A.2.21.4 If a Qualified Vehicle is unable to fly in an assigned Time Period,
the Official Judges of the competition may reassign that slot to another
Qualified Vehicle. Reassignments will be made at the sole discretion of
the Official Judges of the Challenge.

A.2.21.5 The Official Judges may elect at their sole discretion to extend
a Time Period due to external forces such as weather, pending availability
of time.

A.2.21.6 The Official Judges may elect at their sole discretion to assign
a Team to a future Time Period, pending availability of Time Periods.

A.2.21.7 When required, XPF will reserve a number of Time Periods for
use by Finalists. Finalists shall be assigned to these Time Periods by
the procedures described in section A.5.

A.2.22 Vehicle – The Team’s entry in the Challenge, not including the
Payload or ground support equipment, consisting of a single, all-inclusive
unit carrying all propulsion, avionics, and other flight subsystems as
appropriate. The Vehicle must have a flight safety system, a pre-approved
system designed to limit or restrict the hazards to the uninvolved public
by preventing the Vehicle from reaching a populated area in the event of
a failure.

A.2.23 Vehicle Number – A number assigned to each Vehicle by the
Official Judges 30 days before the Competition. This number will stay with
the Vehicle throughout the competition of that year, and will be used to
identify the Vehicle, including for any random draws required.  Any
changes of Number without the knowledge and written approval of the Judges
will disqualify the vehicle from competition.

A.2.24 Vehicle Reference Point – A clearly marked and accessible point
on the exterior of the Vehicle defined by Team prior to any Flight, which
shall be used for measurement of Landing Accuracy.

A.2.25 Vehicle Storage Areas – An area provided and designated by
XPF wherein Team will store and carryout pre- and post-competition maintenance
check out of Vehicle prior to moving to Staging Area.  Any special
storage requirements must be specified by the Team and agreed to by XPF
60-days prior to the Challenge.

A.2.26 XPF – The X PRIZE Foundation, responsible for administering, executing,
and judging the Challenge.

A.3 Challenge Conditions

A.3.1 Technical specifications not already covered in this Agreement about
any Challenge detail will be provided by XPF to the Team at the time of
registration. These technical specifications may be subject to reasonable
future updates by XPF at its sole discretion no later than 90 days prior
to the Challenge for those changes that might affect design and no later
than 30 days for those changes affecting operations.

A.3.2 The Challenge will be conducted until Challenge Termination.

A.3.3 Team shall provide or make arrangements for all necessary test facilities,
personnel, equipment, fluids, and consumables necessary to complete the
flight and to transport the Vehicle between the Vehicle Storage Area, the
Staging Area, Point A and Point B. The team shall be solely responsible
for environmental protection of their vehicle in all Areas and its associated
equipment and consumables during storage, maintenance, transport, and operation.

A.3.4 All Flight Attempts to win the Purse(s) must take place from the
Competition Venue during assigned Time Periods.

A.3.5 Purses will be distributed according as follows:

A.3.5.1 If only a single Team becomes a Finalist in a given year, then
that Team will win the largest Purse not previously awarded in that Competition
Level.

A.3.5.2 If more than a single Team becomes a Finalist in a given year,
then those Teams will be ranked according to the tie-breaker criteria described
in section A.5. Teams will then be awarded the highest Purses not previously
awarded for that Competition Level according to their ranking.

A.3.5.3 No Vehicle can win more than one Purse in a single year of the
Challenge.

A.3.5.4 A Vehicle may be registered for Competition Level One or Competition
Level Two, but not both.

A.3.6 Team must provide certification to XPF at least 60 days prior to
the Challenge that at least 90% of the funds used to design, build, and
operate the Vehicle come from Private Sources.

A.3.7 Team must provide documentation to XPF at least 30 days prior to
the Challenge proving the Vehicle has received appropriate licenses, waivers,
or permits from the applicable regulatory bodies, including, if necessary,
the Challenge Venue site and the Federal Aviation Administration.

A.3.8 Team must invite XPF to attend, observe, and document the Demonstration
Flight at least three weeks prior to the Flight Attempt.  XPF must
receive advanced notice at least one week prior to the Demonstration Flight.

A.3.9 Team must notify XPF at least 120 days prior to the Challenge which
propellants, oxidizers, and other consumables will be used at the Competition
Venue by the Vehicle for all flights. Decisions regarding the safe use
of all consumables shall be made at the sole discretion of XPF.

A.3.9.1 The following fuels and oxidizers shall be considered safe for
operation at the Competition Venue: butane, E85, ethane, ethyl alcohol,
gaseous oxygen, gasoline, hydrogen, H20, H202 in concentrations less than
or equal to 90%, isopropyl alcohol, kerosene, liquid oxygen, methane, N20,
propane.

A.3.9.2 The following fuels and oxidizers shall be considered unsafe for
operation at the Competition Venue: H202 in concentrations greater than
90%, nitric acid, hydrazine, unsymmetrical dimethylhydrazine, monomethylhydrazine,
any hypergolic propellant combination.

A.3.9.3 All other fuels and oxidizers shall be reviewed by the Official
Judges of the Challenge to ascertain compliance and the potential for safe
usage at the Competition Venue. Teams may request this judgment at any
point after the naming of the Official Judges.

A.3.10 Prior to any Flight Attempt:

A.3.10.1 Teams desiring to compete must register with XPF (See Appendix
A: Registration Form) by an XPF appointed date for the year in which the
Team plans to compete. For the 2007 Competition, this date shall be 17:00
PDT on April 30, 2007. If desired by the Team, Team Registration data will
be kept confidential until 60 days before the Flight Attempt date, at which
point it will be made public and promoted by XPF.

A.3.10.2 A Team Data Package (See Appendixes B through G) must be provided
to XPF by an XPF appointed date for the year in which the Team plans to
compete. For the 2007 Competition, this date shall be 17:00 PDT (Santa
Monica, California local time) on April 30, 2007. This deadline may be
extended at the sole discretion of XPF.

A.3.10.3 Teams must sign and return this Agreement to XPF by an XPF appointed
date for the year in which the Team plans to compete. For the 2007 Competition,
this date shall be 17:00 PDT (Santa Monica, California local time) on April
30, 2007. This deadline may be extended at the sole discretion of XPF.
This Agreement addresses multiple issues including but not limited to sponsorship
rights, media rights, and liability. Teams and all Team members must abide
by this Agreement.

A.3.10.4 Teams must provide a detailed Mission Schedule, including step-by-step
operations and approximately timelines, to the Official Judges of the Competition,
no later than 17:00 PDT (Santa Monica, California local time) on TBD. This
deadline may be extended at the sole discretion of XPF.

A.3.11 The Vehicle shall meet all of the required Gold Box and safety
functions on all flights at the Competition Venue.

A.3.12 The Vehicle shall clearly display an external identification of
the Vehicle Reference Point and the Vehicle Number.

A.3.13 The Vehicle shall clearly display a Logo Cluster provided by XPF.

A.3.14 The Vehicle shall carry the Payload during all Flight Attempts.

A.3.15 Only Qualified Vehicles shall be allowed to perform Flight Attempts
at the Competition Venue.

A.3.15.1 In any given year of the Challenge, the number of Qualified Vehicles
permitted to perform Flight Attempts at the Competition Venue may be limited
at the sole discretion of XPF. For 2007, the number of Qualified Vehicles
shall be limited to five for Level One and five for Level Two.

A.3.15.2 Vehicles that meet the definition of Qualified Vehicle shall
be permitted to perform Flight Attempts at the Competition Venue, until
such point as the limit of Qualified Vehicles described in Section A.3.15.1
has been reached. Vehicles that meet the definition of Qualified Vehicle
after the limit for a given year has been reached shall not be permitted
to perform Flight Attempts at the Competition Venue for the given year.

A.3.15.3 Vehicles will be declared Qualified in the order in which Qualification
verification, as defined in Section A.3.15.2, is completed.  In the
case of a tie for the last opening for a given year, preference
will be given to any Team that does not already have one Qualified Vehicle
for that year. If two or more Teams all have one Qualified Vehicle or all
lack a Qualified Vehicle, the opening will go to the Vehicle that first
submitted first submitted a complete Registration Package.

A.3.16 The Vehicle shall meet all the Technical Flight Requirements given
below. The Technical Flight Requirements described in section A.4 must
be performed in the sequence given, and none may be omitted or rearranged.

A.4 Technical Flight Requirements

A.4.1 After the start of Team’s assigned Time Period, Team must
transport Vehicle safely from the XPF-designated Staging Area to Point
A and ready Vehicle for take-off.

A.4.2 Vehicle must take-off vertically utilizing only rocket power from
Point A. No aerodynamic or air-breathing methods of hovering, propulsion,
steering, or landing are permitted except in the case of abort.

A.4.3 Vehicle must vertically ascend from Point A to a flight altitude
of no less than 50 meters. The choice of exact flight altitude is the sole
decision of the Team, but must comply with all safety regulations. The
Vehicle must be initially located with its Vehicle Reference Point above
the geometric center of Point A, as marked by XPF or the Official Judges.
The Vehicle Reference Point must remain within a cylinder 10 meters in
diameter and 50 meters high, centered about the geometric center of Point
A for the ascent to be considered vertical. The Vehicle must maintain an
altitude of at least 50 meters as it translates horizontally from above
Point A to above Point B.

A.4.4 Vehicle must remain aloft for a minimum amount of time. For Level
One this minimum is 90 seconds. For Level Two this minimum is 180 seconds.
Flight time will be measured by the Official Judges from the time the last
Vehicle contact point leaves Point A, until the first Vehicle contact point
touches Point B, initiating a stable landing. Re-contact during either
takeoff or landing will not be counted in determining vehicle flight time.

A.4.5 Vehicle must land and shut down engines within a 10 meter diameter
circle centered on a marked target at Point B. No part or portion of the
Vehicle may make contact with the ground outside of the 10 meter diameter
circle centered upon Point B. Vehicle must remain at Point B long enough
for the Official Judges to measure the Landing Accuracy.

A.4.6 While the Vehicle is at Point B, Team will have the option to perform
Refueling Operations on its vehicle. The Vehicle may not be relocated from
its landing position at Point B, but Vehicle may be leveled if required
for safety and/or guidance requirements. If some non-essential functional
component of the vehicle is dislodged as the result of landing at Point
B, it may not be reattached, but the vehicle is allowed to proceed with
a subsequent takeoff attempt. No maintenance to repair damage caused by
the flight or landing is permitted at Point B. No replacement parts may
be added to the Vehicle unless the replacement part was carried aboard
the Vehicle during all previous Flights, and the replaced part is carried
aboard the Vehicle on all subsequent Flights.

A.4.7 Vehicle must take-off vertically utilizing only rocket power from
Point B. No aerodynamic or air-breathing methods of hovering, propulsion,
steering, or landing is permitted except in the case of abort.

A.4.8 Vehicle must vertically ascend above Point B to a flight altitude
no less than 50 meters. The choice of exact flight altitude is the sole
decision of the Team. The Vehicle Reference Point must remain within a
cylinder 10 meters in diameter and 50 meters high, centered about the position
of the Vehicle Reference Point prior to takeoff, for the ascent to be considered
vertical. The Vehicle must maintain an altitude of at least 50 meters as
it translates horizontally from above Point B to above Point A.

A.4.9 Vehicle must remain aloft for a minimum amount of time. For Level
One this minimum is 90 seconds. For Level Two this minimum is 180 seconds.

A.4.10 Vehicle must land and shut down engines within a 10 meter diameter
circle centered on a marked target at Point A. No part or portion of the
Vehicle may make contact with the ground outside of the 10 meter diameter
circle centered upon Point A.

A.4.11 Team must transport Vehicle back to the XPF-designated Staging
Area before the conclusion of the assigned Time Period.

A.4.12 Any Qualified Vehicle that has successfully met all of the requirements
of this Challenge for Competition Level One or for Competition Level Two
shall be considered a Finalist in the appropriate Competition Level.

A.5 Finalist Time Period

A.5.1 Tied Finalists for each Competition Level will select desired 150-minute
Finalist Time Period from the options identified by XPF. The Finalist that
achieved the smaller mean landing accuracy shall have first selection of
Time Period.

A.5.2 In the event of a tie for first, second, or third place in Level
One or Level Two, the tied Finalists for each Competition Level shall use
the assigned Finalist Time Period to accumulate the maximum number of flights
from Point A to Point B and from Point B to Point A, used to rank the tied
Finalists.

A.5.2.1 All Vehicles must meet all Technical Flight Requirements (section
A.4) during the Finalist Time Periods, with the exception of the minimum
flight times described in sections A.4.4 and A.4.9.

A.5.2.2 Total number of flights from Point A to Point B or from Point
B to Point A during the assigned Finalist Time Period shall be monitored
and tracked by the Official Judges of the Challenge. The total number of
flights from Point A to Point B and the total number of flights from Point
B to Point A shall be summed, so long as each flight occurs within the
assigned 150-minute Finalist Time Period and all other Challenge requirements
are met.

A.5.2.3 If the intact Vehicle, including Payload, is not returned to the
Staging Area by the end of the 150-minute Finalist Time Period, all Flights
from that Finalist Time Period shall be invalidated.

A.5.2.4 The Vehicle with the greater number of total flights, as described
in Sections A.5.2.1 and A.5.2.2, shall be considered the higher ranked.

A.5.3 In the event that the tie breaker described in Section A.5.2 has
been applied and there is still a tie between any number of Finalists in
either Competition Level, Vehicles will be ranked by Mean Landing Accuracy
for all Flight Attempts, including those occurring during Finalist Time
Periods. The Vehicle with a smaller Mean Landing Accuracy shall be considered
the higher ranked.

A.5.4 In the event that both tie breakers have been applied and two or
more Vehicles are still tied, the purse money shall be split evenly between
these Vehicles.

 

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