Squawks are problems noted on paper by RAF pilots and left for maintenance crews who fill in the replies. Here are some examples: (P) = Problem (S) = Solution

  • (P) Left inside tyre almost needs replacement
  • (S) Almost replaced left inside tyre
  • (P) Test flight okay except Autoland very rough
  • (S) Autoland not fitted on this aircraft



  • (P) No 2 Propeller seeping hydraulic fluid
  • (S) No 2 Propeller seepage normal. Nos 1, 3 and 4 la ck normal seepage
  • (P) Something loose in cockpit
  • (S) Something tightened in cockpit
  • (P) Evidence of hydraulic fluid leak on main right landing gear
  • (S) Removed evidence of hydraulic fluid leak on main right landing gear
  • (P) DME Volume unbelievably loud
  • (S) DME Volume set to more believable level
  • (P) Dead insects on windshield
  • (S) Live insects on order
  • (P) Autopilot in altitude hold mode produces a 200 feet per minute descent
  • (S) Unable to reproduce problem on ground
  • (P) IFF inoperative
  • (S) IFF always inoperative when set to OFF mode
  • (P) Friction lock causes throttle levers to stick
  • (S) That is what they are supposed to do
  • (P) No 3 engine missing
  • (S) No 3 engine found after brief search of right wing
  • (P) Aircraft handles funny
  • (S) Aircraft told to be serious
  • (P) Target radar hums
  • (S) Target radar reprogrammed with the right words


These are some notes on my current R git work flow, which is quite fluid, and git has enough quirks that I usually forget part of it !

Creating Projects

I've used both RStudio and Eclipse.  RStudio seems easier to create a 'project' and add a local git repo to it, but Eclipse has more functionality (like roxygen comment generation) so I prefer eclipse. 

In Eclipse 3.7, I have both Statet and eGit installed. To start create a new project normally (File > New > R Project), and add any starting stuff like R and Data folder, a readme etc...

Right click on the project name and select Team > Share Project.  Select Git and then create a local Git Repo.  For some reason eclipse has a check box to create the repo within the Eclipse workspace, and then gives you a warning that its not recommended.

Then there are a few ways to commit, Right click on project and Team > Commit, use the Git Staging view tab,   Whatever route, select which files to commit and enter a comment.  Your name and email is stored in Preferences > Team > eGit.

Backing Up 'locally'

To 'backup' (and potentially make available anywhere) I have a Linux server called Pegasus  tucked away somewhere that does many, many jobs.  it's actually an old work desktop and a tad underpowered, but it does the job.

One job is to act as a backup server, and that goes for git too.  using two pieces fo software, Gitosis and gitview. (although it seems Gitosis hasn't been updated in a few years, and isn't being actively maintained, which means no new bugs !)

To add a new repo to my server
on local machine;

kate gitosis.conf

add lines for the new repo, save and close

git commit -a -m "add repos for xxx"

Then cd to the repo your adding

git remote add pegasus gitosis@pegasus:PaulHurleyMisc.git

git push pegasus master

and the repo is magically on the server.  I can even visit http://pegasus/viewgit/index.php and see the new repo sitting there.

 Backing up to the cloud AKA Github

For things I'm happy to share, I have used github as a great cloud based way to share code (https://github.com/paulhurleyuk).  The thing that always gets me is the need to create the repo on github before pushing to it.

So create a repo on Github

then, on your local machine
git remote add github https://www.github.com/paulhurleyuk/testrepo.git

git push github master


and I then get an error that something conflicts (because I have a file with the same name in both, usually readme.md), so need to do

git pull

and then merge/drop any changes before doing git push again....


Some assorted Links





I love my Android !  I used to manually geotag photos from memory using Digikam, but after I recently got an HTC One V Android phone I thought there must be another way.  And there is.  Following a guide here, I downloaded OpenGPS Tracker on my phone and started it tracking and put it in my pocket on a recent walk around.  I then took photos as normal.

When I got home I downloaded my photos from my camera, and on my phone 'Shared' my tracks as files, and transferred the gpx files to my laptop.  I could then use the geolocation function in digikam to match my photos to the tracks.  I had to extend the time limit to 240 seconds but other than that it worked really well.

You can see the results in my Amsterdam Flickr set