Mr. Jackdaw Company
Mr. Jackdaw Company builds mobile apps and web software.
01
Choose My Plane
General aviation catalog and aircraft comparison tool.
Choose My Plane curates and normalizes aircraft data from authoritative sources. Shown below: real data on the Pilatus PC-12 NGX, a single-engine turboprop. Learn more
- Engine, take-off power
- 1,200 shp
- EASA type certificate data sheet A.089, PT6E-67XP
- Cruise, maximum, FL220
- 290 kt
- Pilatus fact sheet, matching AOPA's flight report
- Fuel burn, maximum continuous power
- 61.8 gph
- 414 lb/hr in AOPA's flight report, at 6.7 lb per gallon of Jet A
- Set aside: 344 lb/hr from a warmer, higher flight; 69 gal/hr, a trip average from a cost vendor
- 2
- Recorded, not used
02
HopStop
Calendar route planner for iPhone and iPad.
The panel shows an example Tuesday: appointments from four calendars, put in order with the drive time between stops.
- 9:00 · 14 Elm St
- start
- Apple Calendar
- 10:30 · 220 Marsh Rd
- 14 min
- Google Calendar
- 1:00 · 9 Harlow St
- 9 min
- Subscribed: listings
- 3:30 · Linden Park
- 11 min
- Subscribed: league schedule
03
Pounce
An iPhone and iPad game.
The panel shows the two games Pounce borrows from, and the rule it adds.
- To win
- Line up your tiles
- From tic-tac-toe
- To move
- Leap an opponent's tile
- From checkers
- The leapt tile
- Turns to your side
- Pounce's own rule: a two-tile swing per move
Mr. Jackdaw Company combines what you already have (a spreadsheet, a stack of paper, a calendar) into the software you were missing.