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Josef Sipek

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Wasting time effectively blahgd
Updated: 20 hours 27 min ago

My Logbooks

Wed, 08/01/2018 - 19:15

Recently a friend asked me about what I use for my pilot logbook. This made me realize that my logging is complicated and that I should probably make a blahg entry about it.

All in all, I have three logbooks to keep track of my flying.

Good ol’ paper logbook

This is the “official” one. In other words, if the FAA wants to see my logbook, that’s what I’ll show them. There’s not much more to say about it.

ForeFlight

This is my casual logbook. A while back I entered everything in, including more accurate counts (full stop vs. touch+go) and better divided up time counts (PIC vs. solo). I use this logbook to answer questions like “How much time do I have?” and “Am I current?”. It is also useful when chatting with people and I want to dig up an entry.

I also use it to keep track of  Hobbs vs.  tach time since I pay based on tach time.

A Repository

This is my custom analysis and archive logbook. In this Mercurial repository, I keep a giant JSON file with every entry with even more detail than what’s in ForeFlight.

Alongside it, I also keep a list of latitude/longitude/altitude information for each airport I’ve been to.

From these two files, I can generate various plots. For example, here is one:

This is a plot of all the airports I’ve ever landed at—color coded based on the year of my first landing there.

This repository also serves as a backup of my paper logbook (in case my physical logbook burns up, gets water damaged, etc.) and an archive of other flying related data. I accomplish this by keeping scans of the paper logbook, copies of any GPS tracklogs I’ve recorded, and so on in a couple of subdirectories.

Post-flight

At the end of each flight, I add an entry to my ForeFlight logbook. Usually, I have ForeFlight recording a tracklog, so a large part of the entry is auto-generated. The bits of info that I add manually are:

  • tach time (useful for billing)
  • time out/off/on/in (I’m trying to figure out how much time I “waste” on the ground to improve my planning accuracy)
  • landing counts
  • any remarks I wouldn’t remember later

Then, when I’m home and have time (this can be later that day, or 3 days later), I pull up the ForeFlight entry, improve/edit the remarks, double check that all the counts make sense (if needed I pull up the tracklog to recount the number of landings, etc.), and then write an entry into my paper logbook.

If I filled up a page of the paper logbook, I scan the two pages and drop them into the repository.

Depending on how I feel, I may update the repository logbook JSON file then and there or at some point later (in the past I’ve even waited for a month due to laziness). Usually, visiting a new airport is motivating enough.

Categories: illumos

Prague & IETF

Wed, 07/04/2018 - 16:18

This post is part of a series named “Europe 2017” where I share photos from my adventures in Europe during the summer 2017.

In mid-July 2017, I got to travel to Prague to participate in IETF’s 99th meeting.

The IETF meeting itself was great—lots of useful discussion about the next-generation email accessing protocol (called JMAP).

I stayed a couple of days extra to enjoy Prague, and Holly flew out from Helsinki to revisit Prague where she’s been once before—for our honeymoon.

I dragged my D750 and the two lenses with me and made to sure to take photos (almost) all the time. The gallery contains only a handful of the approximately 1100 raw files. Of those, I selected 11 for this blahg post.

 Malá Strana Bridge Tower:

 St. Nicholas Church with the  Žižkov Television Tower in the background:

 Matthias Gate with  St. Vitus Cathedral peeking in the background:

The  National Theatre:

 Charles Bridge and a view of  Old Town:

 St. Vitus Cathedral from  Petřín near sunset:

St. Nicholas Church again during sunset (and without the ugly Žižkov TV tower):

A gargoyle keeping the St. Nicholas Church’s masonry safe:

A view from the top of  Old Town Bridge Tower with roofs and towers of (left to right):

Church of Saint  Francis of Assisi, the left tower of  Church of Our Lady before Týn, the clock tower and the Astronomical tower of  Clementinum:

St. Nicholas Church yet again, this time from the Malá Strana Bridge Tower:

 Charles Bridge,  Old Town Bridge Tower, Church of Saint  Francis of Assisi, and  Žižkov Television Tower (from the Malá Strana Bridge Tower):

Prague offers a lot to see. The few photos I selected for this blahg post don’t show anywhere near enough of it. There are more photos in the gallery, but even those are merely highlights of what one can see in Prague. If you haven’t been to Prague yet, I highly recommend a trip.

Categories: illumos

Prague & IETF

Wed, 07/04/2018 - 16:18

This post is part of a series named “Europe 2017” where I share photos from my adventures in Europe during the summer 2017.

In mid-July 2017, I got to travel to Prague to participate in IETF’s 99th meeting.

The IETF meeting itself was great—lots of useful discussion about the next-generation email accessing protocol (called JMAP).

I stayed a couple of days extra to enjoy Prague, and Holly flew out from Helsinki to revisit Prague where she’s been once before—for our honeymoon.

I dragged my D750 and the two lenses with me and made to sure to take photos (almost) all the time. The gallery contains only a handful of the approximately 1100 raw files. Of those, I selected 11 for this blahg post.

 Malá Strana Bridge Tower:

 St. Nicholas Church with the  Žižkov Television Tower in the background:

 Matthias Gate with  St. Vitus Cathedral peeking in the background:

The  National Theatre:

 Charles Bridge and a view of  Old Town:

 St. Vitus Cathedral from  Petřín near sunset:

St. Nicholas Church again during sunset (and without the ugly Žižkov TV tower):

A gargoyle keeping the St. Nicholas Church’s masonry safe:

A view from the top of  Old Town Bridge Tower with roofs and towers of (left to right):

Church of Saint  Francis of Assisi, the left tower of  Church of Our Lady before Týn, the clock tower and the Astronomical tower of  Clementinum:

St. Nicholas Church yet again, this time from the Malá Strana Bridge Tower:

 Charles Bridge,  Old Town Bridge Tower, Church of Saint  Francis of Assisi, and  Žižkov Television Tower (from the Malá Strana Bridge Tower):

Prague offers a lot to see. The few photos I selected for this blahg post don’t show anywhere near enough of it. There are more photos in the gallery, but even those are merely highlights of what one can see in Prague. If you haven’t been to Prague yet, I highly recommend a trip.

Categories: illumos

2018-06-05

Tue, 06/05/2018 - 17:17

Smart Clock: A New Time — Using three inexpensive wrist watches to achieve 1 second accuracy over an extended period of time.

Repairing the card reader for a 1960s mainframe: cams, relays and a clutch

The 555 Timer IC an Interview with Hans Camenzind—The Designer of the Most Successful Integrated Circuit Ever Developed

High-level Problems with Git and How to Fix Them — A Mercurial developer’s view of Git’s shortcomings.

Mailing lists vs Github

GDL 90 Data Interface Specification — Definition of the serial protocol used by  UAT receivers to feed the received data to  MFDs.

GDL 90 Extended SpecificationForeFlight’s extension to GDL 90.

Categories: illumos

2018-06-05

Tue, 06/05/2018 - 17:17

Smart Clock: A New Time — Using three inexpensive wrist watches to achieve 1 second accuracy over an extended period of time.

Repairing the card reader for a 1960s mainframe: cams, relays and a clutch

The 555 Timer IC an Interview with Hans Camenzind—The Designer of the Most Successful Integrated Circuit Ever Developed

High-level Problems with Git and How to Fix Them — A Mercurial developer’s view of Git’s shortcomings.

Mailing lists vs Github

GDL 90 Data Interface Specification — Definition of the serial protocol used by  UAT receivers to feed the received data to  MFDs.

GDL 90 Extended SpecificationForeFlight’s extension to GDL 90.

Categories: illumos