tag:blogger.com,1999:blog-10629306961938793592024-02-20T12:30:10.116-08:00The Dave's Hangar BlogDave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.comBlogger176125tag:blogger.com,1999:blog-1062930696193879359.post-8569415337878332422016-06-14T15:29:00.001-07:002016-06-14T15:29:38.166-07:00Hangar MovedThe hangar is now hosted by GoDaddy at this URL:<br />
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<a href="http://www.daveshangar.org/">http://www.daveshangar.org</a>Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com3tag:blogger.com,1999:blog-1062930696193879359.post-37738118766611628482015-08-25T17:41:00.001-07:002015-08-25T17:41:27.067-07:00<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiUo7cFhE2DwrAxEiA85kbUgHttDhLjKKaueIXdOH4YH83rqC9_ldgsCQO7Ua4ycJcoYbFfD1yPAkzwnFXswtSTNFg3tqG_yYMkkYRraz-tpuhQxYNv675_bsyZcM7meMEsWWrE2klVWQ0U/s1600/PM2015.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="272" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiUo7cFhE2DwrAxEiA85kbUgHttDhLjKKaueIXdOH4YH83rqC9_ldgsCQO7Ua4ycJcoYbFfD1yPAkzwnFXswtSTNFg3tqG_yYMkkYRraz-tpuhQxYNv675_bsyZcM7meMEsWWrE2klVWQ0U/s320/PM2015.jpg" width="320" /></a></div>
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Here's the latest version of Precious Metal's paint job, courtesy of Gary Brown.<br />
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Also, I just added some propeller inflow code to JSBSim. This should tone down the thrust a bit at low speeds, and should result in more realistic behavior.<br />
Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com2tag:blogger.com,1999:blog-1062930696193879359.post-67722585871620640452015-08-25T10:28:00.002-07:002015-08-25T10:28:50.806-07:00New Precious Metal liveriesGary Brown has made four liveries for the Precious Metal racer, covering many years of the airplane's ownership history. These are true works of art, so check it out. Note that there is no livery switching here - each livery is a different model name.<br />
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The airplane puts out a lot of thrust at low speed, and this is probably due to a lack of propeller inflow modeling. I'll take a look at inflow, and maybe the JSBSim propeller code can be updated.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com2tag:blogger.com,1999:blog-1062930696193879359.post-71269357028607190882015-08-24T15:03:00.000-07:002015-08-24T15:08:17.337-07:00F-106, video of falcon launchHere's a video of a launch of an AIM-4 Falcon from the F-106. Captured using ffmpeg.<br />
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dxdyKnIb10KG77V6jkuAeIx9pp-b1zyrBU9heLiyCL-Kz-EHBQxvRc3znSGyLnpem4Tt8Ru79XY4HfFA6JUCg' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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In case it doesn't show up, here's a link to the video file:<br />
https://dl.dropboxusercontent.com/u/12562954/F-106.mpgDave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com1tag:blogger.com,1999:blog-1062930696193879359.post-58629126126493678662015-08-20T08:32:00.000-07:002015-08-20T08:32:03.071-07:00F-106 UpdateThe new F-106 version has a lot of animation for the missle firing sequence - doors open, missles descend, missle fires, missle carrier retracts, doors close. So far only the forward-left missle fires. Research was tough on this mod, since the door arrangement was changed when the gun was installed.<br />
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Also new are some tailhook fairings, data link antennas, windscreen supports, semi-transparent windscreen structure, gun gas purge inlet, fuel gauge with refueling light, fixes to position lights, fixed elevon mixer, and lots of work on the missle bay.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-35861779264256301482015-07-31T15:38:00.001-07:002015-07-31T15:38:42.600-07:00Bell P-39D AiracobraA new project is posted at the Hangar - a P-39D. This was originally a model made by Akemi Misoguchi for CFS2.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-9806690712703423082015-07-15T13:05:00.001-07:002015-07-15T13:05:32.536-07:00Tailwheel lockI'm in the process of adding tailwheel locks to all the tail draggers. I'm using "Ctrl-L" to toggle the lock. By default the lock will be on at startup for all tail draggers. After landing be sure to release the lock before taxiing. Models uploaded today are the : P-26A, A-1H and AD-6.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com1tag:blogger.com,1999:blog-1062930696193879359.post-77240281853847429542015-07-01T17:57:00.003-07:002015-07-03T12:32:32.765-07:00Sound updatesSome sound files are being brought up-to-date. Some of the configuration items, like <location> and <orientation> were wrong. Also, I've added a new channel to the ADC which models a 3-gear squat switch with a two second delay. This should solve once and for all the problems I've had getting the "tire squeal" sound to play at the right time. </orientation></location><br />
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<location><orientation>Edit: The sound problem is solved on runways, but not on the carrier. The problem is that airplanes using the JSBSim FDM no longer initialize properly on the carrier. </orientation></location>Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-84113704051580182332015-06-24T22:08:00.002-07:002015-06-24T22:08:50.789-07:00Density AltitudeIt's been a long time since density altitude appeared in JSBSim, so I've replaced it with a system called "ADC", which stands for Air Data Computer. So far all the ADC does is take air density (rho) as an input and looks up a corresponding altitude, resulting in a density altitude figure. This value is then used by the turbine engine thrust lookup tables. This allows the turbine engine output to be effected by non-standard air temperature.<br />
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Airplanes modified so far are the F-105, A-3D, A-7E and F-4C.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-91455692916115844782015-06-06T10:55:00.001-07:002015-06-10T09:06:35.903-07:00New Afterburner EffectThanks to FG dev Thorsten we now have great looking afterburner plumes in FG. I've added this to the newest DavePack, version 5.2. I also uploaded to the hangar one model that has been modified to use it, the F-4C version 1.0. Here's an earlier test with the F-105 (not uploaded yet).<br />
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<a href="https://dl.dropboxusercontent.com/u/12562954/F-105-burner.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://dl.dropboxusercontent.com/u/12562954/F-105-burner.jpg" width="320" /></a></div>
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The DavePack version is a one-size-fits-all plume, using a new 12 sided bounding cylinder to keep the plume within the nozzle. The plume is added to the model in the usual way, in the model's XML wrapper file. You just specify the XYZ locations and any tilt (i.e. pitch-deg).<br />
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I'm running this in FG 3.5. I don't know if will run in earlier versions. I hope it doesn't crash earlier versions. If it doesn't work for you just comment out the new afterburners in the XML file and uncomment the old ones.<br />
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UPDATE: Added two other plumes, a smaller one for smaller engines, and a new full sized plume with a different shape to make it easier to fit it into the nozzle hole. DavePack updated to version 5.3.<br />
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UPDATE, PART DEUX: Since this effect is so new I've added code that will use the old-style burners on FlightGear 3.4.x or earlier. You'll need 3.5.x or newer to see the new burners. DavePack updated to version 5.4. So far only the F-4N has the conditional burner code. <br />
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UPDATE, PART TROIS: The F-4C, F-4D, and F-4E now have the conditional burners.<br />
Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-84358081117296225112015-01-08T14:50:00.000-08:002015-01-08T14:50:37.771-08:00Some JSBSim UpdatesI've added some new things to JSBSim. The first is a new FDM configuration item called pitot-angle that goes in the metrics section. This will make a slight change in indicated airspeed, as the speed is now calculated using a pitot coordinate frame rather than the body frame. In most airplanes the pitot frame will be rotated nose-low by a few degrees from the body frame. About -4 degrees is a good estimate.<br />
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The second change is the air refueling onload rate is now configurable. It used to be a hard-coded 6000 lbs/min, which is OK for cargo/bomber type aircraft but too much for fighter types, which onload in the 1000-2000 lbs/min range.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-79863656961480826102014-12-04T15:29:00.002-08:002014-12-04T15:31:05.101-08:00AC3D/FlightGear CoordinatesHere's a graphic you can use to convert from AC3D coordinates to FlightGear animation coordinates. Email me if you'd like a copy of the higher res version.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOfJtMkdic68KqJSal6ERo2JaksTVRT0oE6yrhCJh29qOw7zOsQ8iIitXyN5-1u-zD-SkVydAVisQ-7ONgy4h01jP9LrrzzYSwss7X1al9jeKF9WBDWs2J7AShgQkoaes1OoKx2QmWwx9c/s1600/coordinates.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOfJtMkdic68KqJSal6ERo2JaksTVRT0oE6yrhCJh29qOw7zOsQ8iIitXyN5-1u-zD-SkVydAVisQ-7ONgy4h01jP9LrrzzYSwss7X1al9jeKF9WBDWs2J7AShgQkoaes1OoKx2QmWwx9c/s1600/coordinates.png" height="320" width="307" /></a></div>
<br />Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-66187984152459106392014-12-04T15:24:00.001-08:002014-12-04T15:24:22.136-08:00F-4C ProjectA FlightGear user told me his father flew the F-4 in TAC in the early 1960's, so I've started an F-4C project for that era. It's in gray with early 60's insignia. More work needs to be done on the livery, but it's flyable now.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhR7EIHWgPEnd_hXPQ8PlBsSzzOuSGqsQ9r76j9J87RsuHgpjCVaV7Wq9nzVytZDYaDbHTnO1dlAVPx55Zv5aHiFaQHa2VVkgjmpJBeAcdKgoXIwkdTumz5LhF5yAgMaRpsndJO2wIG3OIG/s1600/F-4C-screen-001.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhR7EIHWgPEnd_hXPQ8PlBsSzzOuSGqsQ9r76j9J87RsuHgpjCVaV7Wq9nzVytZDYaDbHTnO1dlAVPx55Zv5aHiFaQHa2VVkgjmpJBeAcdKgoXIwkdTumz5LhF5yAgMaRpsndJO2wIG3OIG/s1600/F-4C-screen-001.png" height="240" width="320" /></a></div>
<br />Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-67841432644814613082014-11-20T13:41:00.000-08:002014-11-20T13:41:14.847-08:00Flightgear 3.2 updatesThree of my models, the prop-driven, carrier capable airplanes (Sea Fury, AD-4 and AD-6) were broken in Flightgear 3.2 because the holdback systems were using a property name that no longer exists. These are fixed now. <br />
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I will also be going over all my airplanes and checking for FG 3.2 compatibility. I don't expect any more issues.<br />
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Also, note that the CC license is now at version 4.0, so the link to Creative Commons has been edited to reflect this.<br />
<br />Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com4tag:blogger.com,1999:blog-1062930696193879359.post-16884507896365235272013-07-30T15:33:00.001-07:002013-07-30T17:30:50.069-07:00F-4E is "Bombable" ready (I think)I've modified the F-4E to be "Bombable-ready", which is just a matter of making a few edits to the submodels and *-set XML files. Assuming I did it right, the cannon and 6 bombs should work properly in "Bombable" scenarios. For more information on this FlightGear add-on, see<br />
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<a class="postlink" href="http://wiki.flightgear.org/Bombable">http://wiki.flightgear.org/Bombable</a><br />
<a class="postlink" href="http://wiki.flightgear.org/Howto:Adding_Bombable_to_FlightGear_Aircraft">http://wiki.flightgear.org/Howto:Adding ... r_Aircraft</a><br />
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I haven't tried the add-on myself, so the F-4E hasn't been tested.<br />
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edit: Just tested it, and the bombs appear to work in the AI scenario. Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-7968208930626929122013-07-05T14:22:00.001-07:002013-07-05T14:22:09.549-07:00Updates postedI have a half day to do some model work! I've updated most of my models with: new email address, transponder enabled, and glass shader. The AD-4 and AD-6 also got a repaired holdback vector that now aligns better with the thrust vector.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-82904632765885207692013-04-13T17:21:00.001-07:002013-04-13T17:23:05.844-07:00Hangar Back UpThe hangar is back up at: <a href="http://dl.dropbox.com/u/12562954/hangar/hangar.html">http://dl.dropbox.com/u/12562954/hangar/hangar.html</a> . I'll be testing each model against FG 2.8 in order to certify them as compatible with that version. So far all the models I've tried have worked (with a couple minor rendering issues).<br />
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These are the latest models I have, and may not be the latest I had when I shut down the hangar in November 2011.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-79220281929221363312011-11-08T14:02:00.000-08:002011-11-08T14:02:25.338-08:00Shutting downI'm stopping my FG/JSBSim work for a while, maybe a long while. I need a break and have lots of work coming up anyway, so I won't be posting anything here, and won't be updating models. Grab them while you can because the hangar goes off the air in early December.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com10tag:blogger.com,1999:blog-1062930696193879359.post-314769610930394322011-11-02T19:37:00.000-07:002011-11-02T20:07:17.821-07:00Moving soonMy ISP, cox cable, has decided to stop hosting their customer's websites, so the hangar will be moving when I can find a suitable replacement host. Just as a backup here are links to the aircraft in the hangar:<br />
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<a href="http://dl.dropbox.com/u/12562954/DavePack.tar.gz">DavePack </a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-4N.tar.gz">F-4N</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-105.tar.gz">F-105</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/FJ-3.tar.gz">FJ-3</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/BAK-12.tar.gz">BAK-12</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-4D.tar.gz">F-4D</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/FGR2.tar.gz">FGR2 </a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-4E.tar.gz">F-4E</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-4EJ.tar.gz">F-4EJ</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-4ETB.tar.gz">F-4ETB</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-4F.tar.gz">F-4F</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-4J.tar.gz">F-4J</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-100D.tar.gz">F-100D</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-7MG.tar.gz">F-7MG</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/A-1H.tar.gz">A-1H</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/A-3D.tar.gz">A-3D</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/A-7E.tar.gz">A-7E</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/A-29B.tar.gz">A-29B</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/AT-29.tar.gz">AT-29</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/AD-4.tar.gz">AD-4</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/AD-6.tar.gz">AD-6</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F7F.tar.gz">F7F</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-103E.tar.gz">F-103E</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/Mirage-IIIC.tar.gz">Mirage IIIC</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/RA-5.tar.gz">RA-5</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/SeaFury.tar.gz">SeaFury</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/T-2.tar.gz">T-2C</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/MiG-21.tar.gz">MiG-21</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/Typhoon.tar.gz">Typhoon</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/P-80.tar.gz">P-80</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-106.tar.gz">F-106</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/P-47D.tar.gz">P-47D</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/B-17F.tar.gz">B-17F</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/PreciousMetal.tar.gz">Precious Metal</a><br />
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Projects:<br />
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<a href="http://dl.dropbox.com/u/12562954/2.2/AH-1S.tar.gz">AH-1S</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/TF-104G.tar.gz">TF-104G</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/S-3B.tar.gz">S-3B</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/F-84G.tar.gz">F-84G</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/B377.tar.gz">B377</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/Bear360.tar.gz">Bear 360</a><br />
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Models by others:<br />
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<a href="http://dl.dropbox.com/u/12562954/2.2/F-5ETigerII.zip">F-5E</a><br />
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AI Models:<br />
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<a href="http://dl.dropbox.com/u/12562954/2.2/E-3.tar.gz">E-3</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/KC-10.tar.gz">KC-10</a><br />
<a href="http://dl.dropbox.com/u/12562954/2.2/SR-71.tar.gz">SR-71</a><br />
<br />Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com2tag:blogger.com,1999:blog-1062930696193879359.post-5303239456520916262011-10-22T19:41:00.002-07:002011-10-22T19:47:43.741-07:00B-377 HowToThe latest version of the B-377 project contains some basic instructions for operating the airplane (see the howto.txt file). I'm still trying to fine tune the engine/prop/systems code, but the result is getting close to right.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-26515028318038012162011-10-07T16:54:00.003-07:002011-10-07T17:05:55.164-07:00Boeing B-377 conversion<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTcayl2XtH4Jr657Poucq53Gx3lfzPrNk48wWzSuxPw0L-zAMG8UsRO2d3Jo5t5c7iQBM_tbIBul1xTxjHIcGS3Le6GrsRmSRVepU-70E9oWDZkmTEXt2w5JorMm5GCgyu3DidIVjZsMUu/s1600/fgfs-screen-007.png"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTcayl2XtH4Jr657Poucq53Gx3lfzPrNk48wWzSuxPw0L-zAMG8UsRO2d3Jo5t5c7iQBM_tbIBul1xTxjHIcGS3Le6GrsRmSRVepU-70E9oWDZkmTEXt2w5JorMm5GCgyu3DidIVjZsMUu/s320/fgfs-screen-007.png" alt="" id="BLOGGER_PHOTO_ID_5660903090524011842" border="0" /></a><br />I've started a conversion project of a Boeing 377 model originally made by Greg Pepper, et. al., and hosted at the great <a href="http://www.calclassic.com/">Cal Classic</a> website. The model is brilliant, and I hope I can do it justice. It's far more detailed than a model I would make. Many thanks to Tom Gibson at Cal Classic for permitting the FlightGear/JSBSim conversion and CC re-license.<br /><br />The exterior is mostly complete. Needed are: cowl flaps, texture-mapping of flaps, wing leading edges. The interior is barely begun, but it's going to look great once the textures are applied.<br /><br />The model is flyable.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0tag:blogger.com,1999:blog-1062930696193879359.post-71536056593042111862011-09-14T19:11:00.002-07:002011-09-14T19:18:42.969-07:00<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPMhE1AohYhoPX2pjUhDhY-fPWd-ozdL8p9pIj0QNOcXblcG3M-0fF4su-TzM2GGmwAX0oKBU54Z8d9CG3tdIDPYvObq7TdOge4FeJuO1fi86X2ewkpCWBUSgPvJ7S_XZP6hyphenhyphengBMfB8v9c/s1600/bear360-alpha.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 246px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPMhE1AohYhoPX2pjUhDhY-fPWd-ozdL8p9pIj0QNOcXblcG3M-0fF4su-TzM2GGmwAX0oKBU54Z8d9CG3tdIDPYvObq7TdOge4FeJuO1fi86X2ewkpCWBUSgPvJ7S_XZP6hyphenhyphengBMfB8v9c/s320/bear360-alpha.jpg" alt="" id="BLOGGER_PHOTO_ID_5652404048566923074" border="0" /></a><br />New project started: The Bear 360, from Bear Aircraft. Much of it is produced in Russia by Yakolev, and the engine is a Vedeneyev M-14P, 9-cylinder radial.Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com2tag:blogger.com,1999:blog-1062930696193879359.post-82167064267239783852011-09-06T17:36:00.000-07:002011-09-06T17:36:23.541-07:00<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjNg3rnz0gqLMBTW2UOa3WalJsL81XYtpXvgWYpHVE4uEekIfh3ZJzzoZJ2AeqKEfWLZ5Pl5IvhyYPQm3fPm-VotuzfowLyy7AcB121VdG3DfZpwhltz90UtLLlrIuaxb4GhaUAxnq0scnD/s1600/friend-ship.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjNg3rnz0gqLMBTW2UOa3WalJsL81XYtpXvgWYpHVE4uEekIfh3ZJzzoZJ2AeqKEfWLZ5Pl5IvhyYPQm3fPm-VotuzfowLyy7AcB121VdG3DfZpwhltz90UtLLlrIuaxb4GhaUAxnq0scnD/s320/friend-ship.jpg" width="320" /></a></div>
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Had a chance to fly the one-of-a-kind, retro painted A-320 this weekend. This paint job is the early-70's "friend ship" style. It's fun to see the usually jaded employees pointing and taking pictures (like me :).Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com2tag:blogger.com,1999:blog-1062930696193879359.post-45236840226962570152011-08-23T16:32:00.005-07:002011-08-24T09:38:39.102-07:00FlightGear gravity for AIBallisticIn my 2.4ish code the AIBallistic code is mixing metric gravity with English units for vertical speed and buoyancy (someone's ready for that NASA job!). The result is that bombs (and other things) don't fall fast enough, and some things, like drag 'chutes, are falling up now. I started to make adaptations in my models, but now believe it's best to keep the models as they are, awaiting a future fix.
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<br />Since my code is close-to-but-not-quite 2.4, I'm wondering if anybody else is getting the same results with official 2.4?
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<br />UPDATE: The bug is still in the current GIT repository, so it's probably in 2.4 as well.
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<br />UPDATE: I'll fix the bug locally and leave the models alone (line 862 of src/AIModels/AIBallistic.cxx). I'll still call them "2.4" compatible. Sorry, but I don't have time to make another category of models to match the buggy code. I'll post the fix details here when I get back from my trip so you can rebuild your FlightGear with it.
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<br />Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com4tag:blogger.com,1999:blog-1062930696193879359.post-35350488062770987562011-08-23T10:08:00.005-07:002011-08-23T11:02:37.500-07:00Drifting on carrier deckWith FlightGear 2.4 I find that my models drift to the right and rotate to the left slowly. This is with the wind turned off. Is anybody else getting this? Note that my build is not exactly 2.4, but is from GIT within a few days of the 2.4 branching.
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<br />UPDATE: I've traced this to the "over-g" system, so I'll be commenting out this system until I can get it working again. The F-4J model has this change and is now updated for FG2.4.
<br />Dave Culphttp://www.blogger.com/profile/06052349872144474732noreply@blogger.com0