CR4 - Forum: Aerospace

10/26/2015 4:00 PM A Planet, Moon or What?

by Fredski

Last post: 11/30/2015 11:16 AM

by James Stewart

14

533

08/20/2015 9:36 AM What India Mars Orbiter??

by Fredski

Last post: 08/24/2015 9:09 AM

by adreasler

14

796

08/18/2015 6:01 PM 1st Stealth Aircraft. Fast Too!

by Fredski

Last post: 08/20/2015 8:17 PM

by lyn

14

567

07/04/2015 10:19 AM Air Force Stands Behind Space X

by Fredski

Last post: 07/19/2015 2:39 AM

by rakesh_semwal

14

353

01/22/2015 3:21 PM Hidden Magnetic Messages From Space Discovered

by HiTekRedNek

Last post: 01/26/2015 11:12 PM

by Canary

14

373

12/05/2013 12:58 PM Aborted Landings at Birmingham Airport, UK

by energyconversion

Last post: 12/15/2013 9:34 AM

by fixitorelse

14

328

10/16/2013 3:13 PM Is This a Really Necessary Thing or Just an Exrcise in Engineering?

by rashavarek

Last post: 10/21/2013 12:51 PM

by JRiversW

14

227

08/02/2013 4:25 PM Flying Car or Driveable Airplane?

by lyn

Last post: 08/29/2013 7:36 PM

by Goewin Rose

14

411

08/28/2009 8:17 AM Good Morning

by Jason something

Last post: 08/30/2009 12:17 AM

by U V

14

195

12/17/2007 4:38 PM Electromagnetic Spectrum As We Know It - Is That All There Is?

by Bill ML

Last post: 01/07/2008 5:47 AM

by Physicist?

14

304

11/13/2007 10:15 AM Free Piston Stirling

by DAG

Last post: 11/14/2007 12:54 PM

by Scapolie

14

818

01/08/2007 10:09 AM Was "Life" Found on Mars in the 1970s?

by Tiny Elvis

Last post: 01/10/2007 11:46 AM

by Anonymous Poster

14

519

03/27/2019 8:24 AM Plane Flies to Wrong Country!

by PWSlack

Last post: 06/01/2019 5:26 AM

by Randall

13

263

03/26/2019 4:14 AM First All-Women Spacewalk Postponed, NASA Says

by PWSlack

Last post: 03/27/2019 4:29 PM

by artsmith

13

129

01/25/2019 11:02 PM Rock From the Moon

by lyn

Last post: 01/28/2019 11:48 AM

by redfred

13

345

07/18/2016 10:42 AM SpaceX Recovers Another Rocket

by Bayes

Last post: 07/20/2016 12:48 AM

by Bayes

13

348

05/17/2016 2:14 PM Racking Up The Miles

by Fredski

Last post: 05/24/2016 3:35 PM

by James Stewart

13

314

12/06/2015 8:38 AM What Planet is This?

by Fredski

Last post: 12/07/2015 5:03 PM

by WAWAUS

13

529

11/04/2015 3:23 PM Satellite Orbit Adjustments?

by IQ

Last post: 11/05/2015 9:50 AM

by Legolaz

13

557

06/27/2015 3:32 PM F35 and Myths

by Fredski

Last post: 07/02/2015 9:10 AM

by James Stewart

13

444

02/18/2015 3:06 AM Multilateration and Local GPS in Aviation

by MarcisJ

Last post: 02/23/2015 8:03 AM

by Hooker

13

497

10/18/2014 12:24 PM Mini Shuttle Returns

by Fredski

Last post: 10/20/2014 3:19 PM

by Anonymous Poster

13

417

02/25/2014 11:04 AM Aircraft Landing Gear Shock Absorber Design

by dannnnny

Last post: 03/11/2014 9:26 AM

by DavidHeiman

13

552

01/07/2013 9:20 AM Acceptable Value for Atmospheric Pressure?

by Romel

Last post: 01/08/2013 9:23 AM

by lyn

13

213

09/14/2011 3:13 PM NASA Announces Design For New Deep Space Exploration System

by thall

Last post: 09/16/2011 7:10 AM

by Anonymous Hero

13

481

09/23/2006 1:00 PM New Scientist and the Relativity Drive

by Jorrie

Last post: 06/19/2011 2:13 AM

by Urmaton

13

493

03/05/2011 9:37 PM Trying To See If My Airplane Design Idea Will Work

by The cow says moo

Last post: 03/07/2011 11:43 PM

by 34point5

13

411

05/27/2010 10:39 AM Tracing the Ancient Skies

by electronick

Last post: 12/03/2010 9:19 PM

by Anonymous Poster

13

249

08/12/2010 2:02 PM Pistonless Pumps in Automobiles

by rageshchandran

Last post: 09/07/2010 11:18 PM

by DaS Energy

13

449

08/11/2009 11:09 PM Internal Combustion Engine Rules

by lutherthecat

Last post: 02/06/2010 1:07 PM

by lutherthecat

13

200

08/10/2007 12:55 AM Are Micro Wave Communication Satellites Heating the Upper Atmosphere

by dadw5boys

Last post: 08/11/2007 6:17 PM

by dadw5boys

13

251

06/28/2007 1:24 AM The 'Moon Illusion' Again!

by Jorrie

Last post: 06/29/2007 1:14 PM

by Kris

13

835

01/06/2022 10:58 PM Red Supergiant collapse

by redfred

Last post: 01/12/2022 5:40 AM

by phoenix911

12

195

02/14/2020 4:15 PM Betelgeuse Dimming Irregularly

by redfred

Last post: 02/17/2020 9:05 AM

by PWSlack

12

290

09/24/2017 6:23 PM NASA Restore L

by tonyhemet

Last post: 09/27/2017 8:19 AM

by Anonymous Poster

12

445

06/09/2016 12:09 PM How Easy Is It to Hack and Crash a Drone?

by BestInShow

Last post: 06/13/2016 11:02 AM

by Jpfalt

12

573

02/28/2016 8:49 AM Addition to Voyager Record

by Fredski

Last post: 02/29/2016 9:07 AM

by bullardrr

12

378

02/22/2016 12:00 PM Move Over Hubble, You're Old News, Here Comes James

by Fredski

Last post: 02/23/2016 12:39 PM

by facilitiesmgr

12

322

08/25/2015 11:13 AM Apollo 11 Hoax

by Anonymous Poster

Last post: 09/11/2015 12:34 PM

by James Stewart

12

572

08/14/2015 9:20 AM Why Royal Navy Helicopter Pilots Receive a Special Allowance

by energyconversion

Last post: 08/18/2015 4:26 PM

by Graycav

12

687

07/02/2015 9:03 AM Pluto Images

by Fredski

Last post: 07/04/2015 11:20 PM

by Tornado

12

354

03/28/2015 11:39 AM Apollo Quiz

by Fredski

Last post: 03/29/2015 10:24 AM

by Usbport

12

495

02/08/2015 7:44 AM Space X Launch Today

by Fredski

Last post: 02/10/2015 10:39 AM

by Fredski

12

321

09/06/2014 9:50 PM Free Body Diagram of a Payload Fairing

by muloto

Last post: 09/12/2014 2:39 PM

by Munster

12

484

12/19/2012 8:31 AM Air Speed

by SYED MD. ANWAR UL ISLAM

Last post: 12/20/2012 6:12 PM

by HiTekRedNek

12

388

02/25/2012 11:43 AM Have They Found Dark Matter?

by StandardsGuy

Last post: 03/09/2012 12:03 PM

by StandardsGuy

12

442

11/08/2008 11:28 PM Safety guarding for flat-bed waterjet cutting machines?

by STL Engineer

Last post: 11/16/2008 6:23 PM

by BlueAussieBoy

12

492

09/15/2008 4:43 AM Space-based Civilization

by DrMoose

Last post: 09/29/2008 12:01 AM

by Sparkstation

12

143

05/18/2008 2:21 PM What is The Best New Private Airplane

by Transcendian

Last post: 05/24/2008 11:23 PM

by Transcendian

12

517

05/03/2008 11:41 PM Are we ready for colonisation of other Planets

by symvoulos_CT

Last post: 05/05/2008 9:13 PM

by DVader1000

12

206

05/04/2007 8:47 AM Designs for "Deep Impact" Danger

by Steve Melito

Last post: 05/06/2007 8:31 PM

by BrainWave

12

260

10/31/2006 1:25 PM The Onion - Spirit rover beginning to hate Mars

by Steve

Last post: 11/03/2006 11:45 PM

by user-deleted-13

12

465

02/16/2021 1:00 PM Kessler Exaggerating?

by TommyJo

Last post: 03/31/2021 7:05 PM

by Haymaker

11

255

08/02/2020 2:56 AM SpaceX Return

by PWSlack

Last post: 03/26/2021 6:14 AM

by JCooper

11

713

07/10/2019 9:50 AM This is Not Normal!

by Rixter

Last post: 07/11/2019 11:47 AM

by MR. Guest

11

374

06/08/2018 11:01 AM Should I Pursue Further Education? (Master's Degree)

by voodoored123

Last post: 06/11/2018 8:57 AM

by Kevin LaPaire

11

404

06/07/2018 11:59 PM International Space Station Viewing

by Sid_Sidow

Last post: 06/08/2018 9:19 PM

by Usbport

11

296

04/22/2017 6:04 PM Aircraft Assembly Line Thought

by Lifecycle

Last post: 06/28/2017 4:59 AM

by MTJB-Engineering

11

646

06/09/2017 1:50 PM Close Encounters of the Classified Kind

by Andrew Westman

Last post: 06/12/2017 10:19 AM

by rashavarek

11

1043

05/15/2017 11:06 AM Orbital Plot of Cassini Last Three Dives

by Anonymous Poster

Last post: 05/17/2017 11:01 PM

by JE in Chicago

11

913

04/02/2017 2:52 PM 50-Year-Old Rocket Stage Involved in Orbital Debris Event

by Andrew Westman

Last post: 04/04/2017 10:17 AM

by wmerryall

11

1173

04/07/2016 9:50 PM Space Living

by walt

Last post: 04/08/2016 4:58 PM

by Mikerho

11

239

11/12/2015 1:49 PM 20 Million Times More Sensitive Than the Human Eye

by Anonymous Poster

Last post: 11/14/2015 7:35 AM

by energyconversion

11

388

08/15/2015 4:51 PM Is the Universe Running Out of Gas?

by Fredski

Last post: 08/17/2015 5:06 PM

by PWSlack

11

645

02/14/2015 10:31 AM Russia Loses Again, Space X Scores

by Fredski

Last post: 02/15/2015 8:49 PM

by Gavilan

11

515

12/28/2014 10:51 PM Gravitational Tandem Starship?

by SSCpal

Last post: 12/29/2014 3:32 PM

by SSCpal

11

373

04/27/2014 8:02 PM Is the Universe Expanding--Or are we Shrinking?

by HiTekRedNek

Last post: 04/30/2014 11:07 AM

by HiTekRedNek

11

394

03/20/2014 11:43 PM Related to Airplane

by Mohan babu

Last post: 03/21/2014 5:30 PM

by old salt

11

225

06/24/2013 8:02 AM Epic Security Failure At NASA

by kramarat

Last post: 07/06/2013 1:10 PM

by UsernameJUDGE

11

202

04/01/2012 6:44 PM A Renewed Look At Extraterrestrial Civilizations

by kevinm

Last post: 04/02/2012 9:14 PM

by kevinm

11

161

10/22/2011 2:31 PM CCD Camera, Computer and Telescope!!

by Mr. Truman Brain

Last post: 10/24/2011 7:04 AM

by Nigh

11

284

12/16/2010 1:45 AM Qantas QF32 Flight From the Cockpit

by 34point5

Last post: 12/27/2010 6:13 PM

by 34point5

11

469

12/17/2009 2:42 PM The Relative Size of Planets and Stars - A Great Website

by Bayes

Last post: 12/21/2009 6:55 AM

by Randall

11

985

04/11/2006 12:25 PM "Gravity Powered" Airplane - Will This Work?

by Steve

Last post: 08/20/2009 5:09 PM

by John Mason

11

444

04/30/2009 8:45 AM air space

by Anonymous Poster

Last post: 05/04/2009 8:51 AM

by edignan

11

89

03/21/2009 10:02 AM Aerospace Hydraulic Systems

by Pressure Drop

Last post: 03/25/2009 9:28 PM

by Pressure Drop

11

166

12/19/2007 11:24 PM airplane contrails-figuring distance traveled

by Ferris

Last post: 02/10/2008 2:55 AM

by Ferris

11

321

10/10/2007 5:55 AM Black Spots on the Sun

by AshrafSiddiqui

Last post: 10/12/2007 12:03 PM

by HUX

11

224

09/01/2006 10:15 AM Lockheed Martin Wins NASA Moonship Bid

by Chris Leonard

Last post: 01/09/2007 7:48 AM

by Scapolie

11

393

12/03/2006 1:26 PM NASA's Own Sky Crane

by Jorrie

Last post: 12/05/2006 1:24 PM

by Jorrie

11

537

08/09/2006 3:55 PM Chandra Confirms the Hubble Constant

by Jorrie

Last post: 08/13/2006 6:32 AM

by Jorrie

11

228

04/30/2020 2:27 AM Starlink Satellites

by gutmonarch

Last post: 05/17/2020 10:26 AM

by AaronWilliams

10

744

09/30/2019 3:22 PM Recent Space News

by StandardsGuy

Last post: 10/05/2019 9:11 PM

by StandardsGuy

10

218

05/06/2018 5:10 AM Temperature Profile on a Cooling Fin

by cwhittaker3504

Last post: 05/08/2018 4:13 AM

by Anonymous Poster

10

233

05/11/2017 9:40 AM New Photos of the Next Mars Rover

by HUSH

Last post: 05/19/2017 10:20 AM

by James Stewart

10

742

03/28/2017 9:43 PM Apollo 11 Close Up

by Fredski

Last post: 04/10/2017 9:22 AM

by Tom_Consulting

10

397

03/11/2016 10:20 AM Galactic Red Shifts May Be Quantized?

by James Stewart

Last post: 03/14/2016 4:53 PM

by horace40

10

512

12/05/2015 11:57 AM Pluto

by Fredski

Last post: 12/07/2015 6:07 AM

by JIMRAT

10

310

08/10/2015 12:12 AM Solar System

by jdretired

Last post: 08/10/2015 8:47 PM

by jdretired

10

513

07/14/2015 12:53 PM Pluto in the House!

by Fredski

Last post: 07/15/2015 12:21 PM

by tcmtech

10

297

06/18/2015 6:54 PM Its Nice Having an Atmosphere

by Fredski

Last post: 06/23/2015 1:04 AM

by Sciesis2

10

451

04/15/2015 7:56 AM No Cigars for Elon

by Fredski

Last post: 04/16/2015 3:15 PM

by ozzb

10

579

02/27/2013 12:58 AM Heidi's Got A Question

by Heidi Etchey

Last post: 02/18/2015 5:05 PM

by Heidi Etchey

10

260

01/03/2015 9:35 PM Russian Moonbase?

by Fredski

Last post: 01/04/2015 2:08 PM

by SolarEagle

10

293

11/09/2014 7:53 AM Will They Stick the Landing?

by Fredski

Last post: 11/11/2014 3:09 PM

by Fredski

10

362

11/05/2014 3:26 PM I Knew a Pump Failed!

by Fredski

Last post: 11/09/2014 8:26 PM

by fixitorelse

10

406

07/26/2014 9:13 PM Solar Eclipse on Mars

by Rixter

Last post: 07/27/2014 4:27 PM

by redfred

10

359

01/28/2014 11:31 AM Aircraft Fuel Pump In Zero G

by Anonymous Poster

Last post: 01/30/2014 9:07 AM

by lyn

10

416

12/27/2013 11:36 AM Gulfstream 650 Competition

by Fredski

Last post: 12/29/2013 9:35 AM

by masu

10

288

11/27/2013 8:24 AM Near Grade Earth Energy Transfer: Geothermal Loop

by JP76

Last post: 12/02/2013 7:29 AM

by JP76

10

131

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