From: Subject: 2000_rules Date: Sat, 6 May 2006 01:05:24 -0500 MIME-Version: 1.0 Content-Type: multipart/related; type="text/html"; boundary="----=_NextPart_000_0000_01C670A9.27E5BFB0" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 This is a multi-part message in MIME format. ------=_NextPart_000_0000_01C670A9.27E5BFB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Location: http://www.ae.uiuc.edu/aiaadbf/00rules.html 2000_rules

2000/01 Rules and Vehicle Design

Summary:

The AIAA through the Applied Aerodynamics, Aircraft Design, Design=20 Engineering and Flight Test Technical Committees and the AIAA Foundation = invites=20 all university students to participate in the Cessna/ONR=20 Student Design/Build/Fly Competition. The contest will = provide a=20 real-world aircraft design experience for engineering students by giving = them=20 the opportunity to validate their analytic studies.

Student teams will design, fabricate, and demonstrate the flight = capabilities=20 of an unmanned, electric powered, radio controlled aircraft that can = best meet=20 the specified mission profile. The goal is a balanced design possessing = good=20 demonstrated flight handling qualities and practical and affordable=20 manufacturing requirements while providing a high vehicle = performance.

To encourage innovation and maintain a fresh design challenge for = each new=20 year, the design requirements and performance objectives will be updated = for=20 each new contest year. The changes will provide new design requirements = and=20 opportunities, while allowing for application of technology developed by = the=20 teams from prior years.

Cash prizes are $2500 for 1st, $1500 for 2nd = and $1000=20 for 3rd place. The winning teams will be invited to present = their=20 designs at the 2001 Applied Aerodynamics = Conference.

Judging:

For the 2000/01 contest year aircraft will be designed to complete = multiple=20 mission sorties within a timed flight period.

Each team must also submit a written Design Report, which is divided = into two=20 phases as noted in the documentation requirements section. A maximum of = 100=20 points will be awarded for the team design report. (One score will be = given=20 accounting for both sections.) Scores for the written reports will be = announced=20 at the beginning of the fly-off.

Additionally each aircraft will have computed a Rated Aircraft Cost,=20 reflecting the complexity/technology of the design.

The overall team score is a combination of the paper, cost and flight = scores.=20 The team with the highest overall team score will be declared the=20 winner.

Contest Site:

Host for the competition will be the Office of Naval Research. The = fly-off=20 will be held in St Inigos Maryland, at Webster Field, which is a part of = the=20 Patuxent River Naval Base. Due to the contest being held on an active = military=20 base it will be necessary to have the teams submit the name, SSN, place = and date=20 of birth and citizenship of each team member on the entry=20 form.

Team Requirements:

All team members (except for a pre-approved designated pilot) must be = full=20 time students at an accredited University or College and student members = of the=20 AIAA. The team must be composed of both under classmen and upper = classmen, with=20 at least 1/3 of the members being under classmen (Freshman, Sophomores = or=20 Juniors). The pilot must be an AMA (Academy of Model Aeronautics) = member. Teams=20 may use a non-university member for the pilot if desired. We will also = provide=20 qualified pilots on the contest day for any teams who are unable to have = their=20 pilot attend.

Reports:

The top scoring report from the past years competition will be = available for=20 reference on the contest web site. The team with the top scoring report = from=20 this years contest will be required to submit an electronic copy of = their report=20 following the competition, which will be placed on the contest web site = for the=20 next years competition.

Sponsorship:

Teams may solicit and accept sponsorship in the form of funds or = materials=20 and components from commercial organizations. All design, analysis and=20 fabrication of the contest entry is the sole = responsibility of the=20 team members.

Schedule:

A completed entry form (electronic) is due to the contest = administrator on or=20 before 31 October 2000. Written reports for the PROPOSAL=20 PHASE (5 copies), are due to the contest administrator by COB = 13=20 March 2001. Written reports for the ADDENDUM PHASE (5 = copies),=20 are due to the contest administrator by COB 10 April 2001. Scores = for the=20 written reports will be announced at the beginning of the fly-off. The = contest=20 is scheduled for 20-22 April 2001.

Late submissions will not be judged. Teams who do not submit the = required=20 written reports will not be allowed to fly.

Please note that tech inspections will be available on Friday 20 = April. Teams=20 are encouraged to be prepared to have your plane inspected on Friday.=20 Inspections will also be available on Saturday, but waiting until = Saturday to go=20 through tech may mean that your team will miss one or more rounds = through the=20 flight queue. If we have a full turnout you may not be able to get in = your full=20 3 scoring flights unless you are "ready to fly" at every=20 opportunity.

Communications:

The contest administration will maintain a World Wide Web site = containing the=20 latest information regarding the contest schedules, rules, and = participating=20 teams. The contest web site will also contain a list of potential = suppliers for=20 materials and equipment available to build an entry. The contest web = site is=20 located at:

http://www.aae.uiuc.edu/aiaadbf

All teams are required to provide two point-of-contact e-mail = addresses with=20 their contest application, one of which must be the teams advisor.

Questions regarding the contest, schedules, or rules interpretation = may be=20 sent to the contest administrator by e-mail at:

gregory.s.page@nrl.navy.mil

The contest administrator will provide copies of all questions = received and=20 their answers to all teams of record.

Written reports (only) should be sent to the chief of scoring at:

AIAA Design/Build/Fly Contest/Report Judging
Greg Page
ITT = SES
2560=20 Huntington Ave
Alexandria VA 22303
Phone:=20 202-404-1251

Aircraft Requirements - General

Aircraft Requirements - Safety

All vehicles will undergo a safety inspection by a designated contest = safety=20 inspector prior to being allowed to make any competition or = non-competition=20 (i.e. practice) flight. All decisions of the safety inspector are final. = Safety=20 inspections will include the following as a minimum.
  1. Physical inspection of vehicle to insure structural integrity.=20
    • Verify all components adequately secured to vehicle. Verify all=20 fasteners tight and have either safety wire, lock-tite (fluid) or = nylock=20 nuts.=20
    • Verify propeller structural and attachment integrity.=20
    • Visual inspection of all electronic wiring to assure adequate = wire=20 gauges and connectors in use. Teams must notify inspector of = expected=20 maximum current draw for the propulsion system.=20
    • Radio range check, motor off and motor on.=20
    • Verify all controls move in the proper sense.=20
    • Check general integrity of the payload system.
  2. Structural verification. All aircraft will be lifted with one lift = point=20 at each wing tip to verify adequate wing strength (this is "roughly"=20 equivalent to a 2.5g load case) and to check for vehicle cg location. = Teams=20 must mark the expected empty and loaded cg locations on the exterior = of the=20 aircraft fuselage. Special provisions will be made at the time of the = contest=20 for aircraft whose cg does not fall within the wing tip chord. This = test will=20 be made with the aircraft filled to its maximum payload capacity = by=20 weight (Teams must inform the inspector and judges of their = maximum=20 design capacity and must make all flights within that capacity).=20
  3. Radio fail-safe check. All aircraft radios must have a fail-safe = mode that=20 is automatically selected during loss of transmit signal. The = fail-safe will=20 be demonstrated on the ground by switching off the transmit radio. = During fail=20 safe the aircraft receiver must select:=20
    • Throttle closed=20
    • Full up elevator=20
    • Full right rudder=20
    • Full right (or left) aileron=20
    • Full Flaps down (if so equipped)=20

    • The radio Fail Safe provisions will be strictly=20 enforced.

  4. All aircraft must have a mechanical motor arming system separate = from the=20 onboard radio Rx switch. This may be a mechanical switch rated for the = maximum=20 current draw which is accessible from outside the aircraft, or can be = a=20 removable link such as an automotive "blade" style fuse. The aircraft = Rx=20 should always be powered on and the Tx throttle verified to be = "closed" before=20 activating the motor arming switch.

Mission Profile:

For the 2000/01 DBF contest, teams will fly a mix of two different = mission=20 tasks. Teams may fly as many sorties as desired within the flight = period, but=20 must switch to the other mission task with each new sortie. Either = mission task=20 may be selected for the first sortie. Each sortie will be assigned a = score based=20 on the matrix, below. The Single Flight Score is the sum = of the=20 score(s) for the individual sorties flown during a single flight period. = The=20 best three (3) Single Flight Scores for each team obtained = during=20 the weekends flying will be summed for the team's Total Flight=20 Score.

In the event that, due to time or facility limitations, it is not = possible to=20 allow all teams to have unlimited flight attempts, the contest committee = reserves the right to ration and/or schedule flights. The maximum number = of=20 scoring flights may also be reduced. The exact determination of how to = ration=20 flights will be made on the contest day based on the number of entries, = weather,=20 and field conditions.

Each team's overall score will be computed from their Written = Report=20 Score, Total Flight Score, and the Rated Aircraft=20 Cost using the formula:

SCORE =3D Written Report Score * Total Flight=20 Score
Rated Aircraft Cost

Rated Aircraft Cost must be documented and included in = the=20 Addendum Report provided prior to the competition. (If not=20 provided, a value of 100 will be used.)

Mission Task Matrix

No.

Score

Description

1

n

Heavy Payload Task
  • Carry 'n' pounds of steel 1 lap of the course.=20
  • Take-off within 200 ft (wheels = off=20 runway)=20
  • Minimum aircraft capacity is 5 lbs. Aircraft must fly at = least the=20 minimum capacity on each sortie of this type. Maximum aircraft = capacity=20 will be specified by the team at the initial technical = inspection and=20 may not be exceeded at any time during the competition. Maximum = payload=20 capacity may not be increased once the aircraft has received = it's=20 initial technical approval. The aircraft structural test will be = conducted at each individual aircraft's maximum payload = capacity.=20
  • All payload must be carried internally in a fully faired, = fully=20 closed structure.=20
  • Aircraft must complete a 360o turn in the = direction=20 opposite of the base and final turns on each downwind = leg.

2

n/5

Light Payload Task
  • Carry 'n' tennis balls for 2 full laps of the course.=20
  • Take-off within 200 ft (wheels = off=20 runway)=20
  • Minimum aircraft capacity is 10 tennis balls. Aircraft must = fly at=20 least the minimum capacity on each sortie of this type. Maximum = aircraft=20 capacity is 100 tennis balls.=20
  • All payload must be carried internally in a fully faired, = fully=20 closed structure.=20
  • 360 degree turn on downwind is not required for this=20 task.

Payload Notes:

Aircraft Cost Model

Rated Aircraft Cost, $ (Thousands) =3D (A*MEW + B*REP = +=20 C*MFHR)/1000

Coef.

Description

Value

A

Manufacturers Empty Weight Multiplier

$100 / lb.

B

Rated Engine Power Multiplier

$1 / watt

C

Manufacturing Cost Multiplier

$20 / hour

MEW

Manufacturers Empty Weight

Actual airframe weight, lb., without payload or = batteries

REP

Rated Engine Power

# engines * Amp * 1.2 V/cell * #=20 cells
"Amp" will be the value of the inline fuse = from the=20 battery to the controller. Maximum value is 40A, but a lower = current fuse=20 may be used, and REP adjusted accordingly.

MFHR

Manufacturing Man Hours

Prescribed assembly hours by WBS (Work Breakdown = Structure).

MFHR =3D S WBS hours

WBS 1.0 Wing(s):
15 hr/wing.
+ 4 hr/sq. ft. Projected = Area
+ 2=20 hr/strut or brace
+ 3 hr/control surface
Note: Winglets, = end-plates,=20 and biplane struts ARE included in = the=20 Projected Area calculation.

WBS 2.0 Fuselage and/or pods
5 hr/body.
4 hr/ft of = length

WBS 3.0 Empenage
5 hr.(basic)
+ 5 hr./Vertical = Surface
+ 10=20 hr./Horizontal Surface

WBS 4.0 Flight Systems
5 hr.(basic)
+ 2 hr./servo or=20 controller

WBS 5.0 Propulsion Systems
5 hr./engine
+ 5 hr./propeller = or=20 fan

General Mission Specification and Notes:

Additional information is included in the FAQ (Frequently Asked=20 Questions).

NEW for This Year

Design Report:

Each team will submit a judged design report as outlined below. The = design=20 report will be submitted in two sections. Submission dates are contained = in the=20 schedule section of this document. Reports must be bound (simple spiral = bindings=20 are sufficient and preferred, 3-ring binders are not allowed). Both the = Proposal=20 and Addendum reports must contain the same cover, title page, and table = of=20 contents. All information used for scoring must be in the outlined = sections.=20 Reports exceeding the total page limit will be scored as "1.0 of = 100".=20 Appendices may not be included.

All reports will be space and one half, 10 point Arial font. Tables = will also=20 be 10 point Arial font. Margins are 1 inch on all sides. All pages will = be 8 1/2=20 x 11 inch, with the exception of the aircraft drawing package, which may = be 11 x=20 17 inch.

Absolute maximum page count for the report is 50 pages for the = Proposal phase=20 report, and 10 pages for the Addendum phase report, including text, = tables,=20 figures, and table of contents (cover/title page is extra). Drawing = package may=20 not comprise more than 5 of the pages of the Proposal phase report page=20 limit.

All figures must be either half (1/2) page or full (1) page format. = No=20 exceptions.

Please note that the judges will be using this same report outline = for=20 evaluating reports. ALL items listed will be expected to be = present, easy=20 to locate and identify and well documented in the report for a maximum=20 score.

Design Report-PROPOSAL PHASE
  1. Executive Summary: (5 points): Provide a summary of the = development of=20 your design. This should be a narrative description highlighting the = major=20 areas in the development process for your final configuration and a = broad=20 description of the range of design alternatives investigated. Include = an=20 overview of the design tools used for each phase of the design = development:=20 conceptual design, preliminary design, and detailed design.=20
  2. Management Summary (5 points): Describe the architecture of the = design=20 team. Provide a list of design personnel and assignment areas. = Document the=20 management structures used for personnel assignments, schedule = control, and=20 configuration control. Include a (single) milestone chart showing = planned and=20 actual timing of major elements of the design process, including as a = minimum=20 the conceptual design stage, preliminary design stage, detailed design = stage,=20 and report preparation periods.=20
  3. Conceptual Design (20 points): Document the alternative concepts=20 investigated during the conceptual design stage. Detail the design = parameters=20 investigated, and why each was felt to be important. Describe and = document the=20 numerical figures of merit (FOM's) used to screen competing concepts, = and the=20 mission feature each FOM was selected to support. Include the values = for=20 Rated Aircraft Cost assigned to each concept during the = FOM=20 screening process. Numerical data need not be extensive at this stage, = but=20 should include as a minimum a final ranking chart giving the = quantitative=20 value of each design for each FOM, the FOM importance factors or = ranking, and=20 an explanation of the features that produced the final configuration=20 selection.=20
  4. Preliminary Design (20 points): Document the design parameter and = sizing=20 trades investigated during the preliminary design stage. Detail the = design=20 parameters investigated, and why each was felt to be important. = Describe the=20 FOM's used and the mission or design feature each FOM supports. = Describe the=20 analytic methods used during the preliminary design stage, the = expected=20 accuracy and why each was selected for this design phase. Numerical = data will=20 be more extensive at this stage, and should include as a minimum = configuration=20 and sizing parameter values sufficient to justify the selection of the = final=20 value chosen for each of the major design and sizing parameters. = Include a=20 summary of the key features that distinguish the final configuration.=20
  5. Detail Design (20 points): Final performance data should be = provided for=20 the design, including take off performance, handling qualities and g = load=20 capability, range and endurance, and payload fraction. Component = selection and=20 systems architecture should be included in this section. The Drawing = Package=20 must contain as a minimum a 3-view drawing of the design = in=20 sufficient detail to indicate aircraft size and configuration, primary = structure component size and location, and location of propulsion and = flight=20 control system components.=20
  6. Manufacturing Plan (10 points): Document the process selected for=20 manufacture of major components and assemblies of the final design. = Detail the=20 manufacturing processes investigated, and describe the FOM's used = (including=20 but not limited to: availability, required skill levels and cost) to = screen=20 competing concepts. Describe the analytic methods (cost, skill matrix, = scheduling time lines) used to select the final set of manufacturing=20 processes. Include a manufacturing milestone chart showing scheduled = event=20 timings.

    Design Report-ADDENDUM PHASE
  7. Lessons Learned (10 points): Document any areas where the final = contest=20 aircraft differs from the PROPOSAL design. Also identify areas for = improvement=20 in the next design and manufacturing process implementation.=20
  8. Aircraft Cost (10 points) Document your final competition = aircraft's=20 Rated Aircraft Cost using the contest supplied cost = models.=20 Provide a table indicating values for each airframe dependent = parameter in the=20 cost model. Provide a table listing manufacturing hours broken down by = the=20 supplied WBS structure.

Sample of Judges Scoring Worksheet

Executive Summary (5 = points)

Summary of development of the design

Highlights major areas in the development process for final=20 configuration

Describes range of design alternatives = investigated

Overview of the design tools used in each = phase

Format, completeness, readability

Management Summary (5 points)

Architecture of the design team

List of design personnel and assignments = areas

Documents personnel assignments, schedule control, and = configuration=20 control

Milestone chart showing planned and actual timing of major=20 elements

Format. Completeness, Readability

Conceptual Design(20 points)

Documents alternative concepts = investigated

Design parameters investigated and why = important

Figures of merit used, mission feature of each = FOM

Discussion of Rated Aircraft Cost for each = concept

Final ranking chart of each design for each = FOM

Features that produced the final configuration=20 selection

Format, completeness, readability

Preliminary Design (20 points)

Design parameters investigated and why = important

Figures of merit used, mission feature of each = FOM

Analytic methods used, expected accuracy, and why=20 selected

Configuration/sizing data

Features that produced the final configuration=20 selection

Format, completeness, readability

Detail Design (20 points)

Performance data (takeoff, handling qualities, range, = endurance,=20 payload)

Component selection and systems = architecture

Drawing package (3-view, dimensions, structure, systems=20 layout)

Innovative configuration solutions, manufacturing process, cost = reduction

Format, completeness, readability

Manufacturing Plan (10 points)

Process selected for major component = manufacture

Manufacturing process investigated and FOM's = used

Analytic methods (cost, skill matrix, = scheduling)

Innovative configuration solutions, manufacturing process, cost = reduction

Format, completeness, readability

ADDENDUM

Lessons Learned (10 points)

Aircraft differences from the PROPOSAL design &=20 Justification

Areas for improvement in the next design and manufacturing=20 process

Time and cost required to implement change/improvement=20 realized

Format, completeness, readability

Aircraft Cost (10 points)

Documentation of Rated Aircraft Cost

Format, completeness,=20 readability

[Top] [AIAA Student = Design/Build/Fly=20 Competition homepage] [AIAA = Homepage]=20

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