Slide 1Slide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15Slide 16Slide 17Slide 18Slide 19Slide 20Slide 21Slide 22Slide 23Slide 24Slide 25Slide 26Slide 27Slide 28Slide 29Slide 30Slide 31Slide 32Slide 33Slide 34Slide 35Slide 36Slide 37Slide 38Slide 39Slide 40Slide 41Slide 42Slide 43Slide 44Slide 45Slide 46Slide 47Slide 48Slide 49Slide 50Slide 51Slide 52Slide 53Slide 54Slide 55Slide 56Slide 57Slide 58Slide 59Slide 60Slide 61Slide 62Slide 63Slide 64Slide 65Slide 66Slide 67Slide 68Slide 69Slide 70Slide 71Slide 72Slide 73Slide 74Slide 75Slide 76Slide 77Slide 78Slide 79Slide 80Slide 81Slide 82Slide 83Slide 84Slide 85Slide 86Slide 87Slide 88Slide 89Colorado Space Grant ConsortiumColorado Space Grant ConsortiumGateway To SpaceASEN / ASTR 2500Class #14Gateway To SpaceASEN / ASTR 2500Class #14One minute:Announcements:Announcements:Announcements:Announcements:Announcements:Announcements:Announcements:Announcements:-Announcements-CDR Presentation Template-One Minute Reports-Launch Vehicles -Next Classes - CDRToday:Today:- Grades will be posted on Tuesday morningAnnouncements:Announcements:- Slides are due next Tuesday at 8:00 for all teams-Each team will have 9 minutes + 5 minutes for Q/A-Teams 2, 4, 6, 8, and 10 will present on Tuesday-Teams 1, 3, 5, 7, and 9 will present on Thursday-Movies do not embed in powerpoint and make sure it is in *.ppt format.-37 days until launchCritical Design Review:Critical Design Review:- Marv LuttgesCDR General Comments:CDR General Comments:One Minute Reports: Rocket History II- Where is Rocket History now?- If we need to order more hardware later, can we?- How do we get cohesion in our group?- Is the HOBO necessary?- How does attitude control work on a rocket?- What is the best way to cut foam core?- BalloonSats are commonly made of foam core- Foam core is a simple, low cost composite panel - You will use hot glue and Xacto knives to create your box- There is a OK way of building with foam core- Cut individual pieces and glue them together - This way works but is not the best and requires more “belts and suspenders”Hands-on: Construction and IntegrationBalloonSat Construction:- There is a BETTER way of building with foam core- Requires algebra and geometry- See paper in back of your course book-BalloonSat Construction:- When cutting foam core, remember you are cutting through three layers- Best to cut each layer individually- Go slow, use metal edge ruler - Be mindful- Step 1: Layout box design on foam core sheetIn the interest of time, each team will be given a pre-traced foam board (black with labels)BalloonSat Construction:BalloonSat Construction:- Step 2: Cut it outBalloonSat Construction:- Step 2: Cut it out- Draw center lines between inner and outer lines- All edge cuts are at 45 degree angles to the centerline- Cut inside edges first and only through top paper and foam not bottom paper (hinge)- Cut outside edges last but all the way through- Go Slow and don’t cut the tables- Please dispose of Xacto blades properlyHands-on: Construction and IntegrationHands-on: Construction and Integration- Cut holes for switch and camera lens- Cut hole through center for balloon attachment tubeHands-on: Construction and IntegrationBalloonSat Construction:- Step 3: Practice integration and make modificationsHold box together and figure out how much insulation you want to use. Will affect how your components sit in boxBalloonSat Construction:- Step 4: Glue it together and strengthen corners- Your template was designed using the “Better Method”- After gluing, cover you seams with aluminum tape- Please don’t go overboard, weight is still an issueBalloonSat Construction:- Step 4: Glue it together and strengthen cornersBalloonSat Construction:Things to remember: You only have one- Switches- Install switches to box and glue switches in place from back side before making electrical connections- Keep switches on both sides and label ON/OFF positions- Make sure to re-connect the switch Hands-on: Construction and Integration- Balloon attachment tube hole should run through center of box on non-opening side- Make hole diameter as close to tube diameter as possible- Secure with paper clip- Make sure paper clip does not interfere with inner diameterHands-on: Construction and IntegrationOne Minute Reports: Rocket History II- Will we be meeting in this room from now on?- What do I think about the X-prize?- What is gimbling?- Is there Rocket History class?- When we will we program our camera?- I wish we could have got to watch more of the videos.One Minute Reports: Rocket History I- Can we change our design/parts now that proposal is turned in?- Can I be astronaut?- Augustine report?- After the proposal, how do we save our grade?- “Other comments, concerns…” This Class!- How many drugs were Tsokvsky on?- When can we start building?- Can we take a field trip to see a Saturn V?In Class ExerciseIn Class ExerciseBefore we get Before we get started…started…Building a Rocket on Paper:- Please wait, everyone will be opening your envelopes in a minute- Not every rocket design will work...- YOU ARE A ROCKET ENGINEER:You make $70,000.00 a year and you have a masters degree and drive a company ViperBuilding a Rocket on Paper:1.) Build a rocket with the right people.You will need… Payload Specialist Thruster Specialist Fuel Expert Structural EngineerBuilding a Rocket on Paper:2.) Calculate total mass of your rocket, must include everything.Total mass = mass of fuel+payload+structure+thrustersBuilding a Rocket on Paper:3.) Calculate the thrust needed to lift your rocket off the launch padNeeded thrust = total mass * gravity F = m * a [Newtons, N]) 1 N =1 kg*m/s21 pound-force = 4.45 Na=gravity=10 m/s2Building a Rocket on Paper:4.) Calculate the total lift (thrust) capability of your rockets thrusters5.) Does your structure support the total weight of the rocket?6.) Do you lift off the ground or did you crash and burn?7.) Could you lift off the surface of the moon?g(moon) = 1/6 g(earth)Ion Engine:Max Thrust = 200 NEngine/Fuel Mass = 9,000 kg (90,000 N)Max Thrust (minus Engine/Mass) = - 82,000 NRemaining Mass = - 8,200 kgAshes(2 kg)Professor(180 kg)Stamps(2K kg)Water(20K kg)Tires(200K kg)CommentsWood = 5K kg(200 kg)NO NO NO NO NOComposite = 9K kg (20 kg)NO NO NO NO NOIron = 500K kg(20,000 kg)NO NO NO NO NOAluminum = 3M kg(2,000 kg)NO NO NO NO NOTitanium = 5M kg(2,000 kg)NO NO NO NO NOCold Gas