O2 Duration vs FLT DIR

O2 Duration is an oxygen consumption calculator for various oxygen cylinder sizes. This is the easiest way to quickly determine the approximate number of minutes until an oxygen tank will be depleted of oxygen. This tool is a must have for Nurse's and EMT’s who work with portable oxygen cylinders. The application allows you to select cylinder tank sizes A, B, D E, G, H, K and M. With the current tank pressure and desired flow rate, the app will display the oxygen duration in minutes. Additionally, a timer can be started which will display a running tank pressure and time in minutes remaining until the tank is empty. When tank pressure reaches 500lbs or when the tank pressure is zero the application will alert you. This is not a substitute for looking at the oxygen cylinder gauge to determine actual pressure and should not be relied on as a means to determine oxygen remaining.

Transform your aircraft operations with Flight Director, the all-in-one flight management app built for pilots, flight schools, and aircraft owners. Whether you're logging solo flights or managing an entire fleet, Flight Director keeps all aircraft operations organized and accessible in one powerful platform. ---Advanced Maintenance & Squawk Tracking--- • Track maintenance items with calendar and hour-based scheduling • Set up recurring maintenance (annual inspections, oil changes, 100-hour inspections) • Receive alerts for upcoming and overdue maintenance • Log squawks so the whole team knows an aircraft's discrepancies • Ground an aircraft automatically for overdue maintenance or serious squawks • Detailed maintenance history and completion tracking ---Built-In Invoicing & Billing--- • Automatically bill members for flight time and monthly dues • Flexible billing: monthly, weekly, or per-flight invoicing • Per-member rates and custom charges • Professional invoices delivered by email with one-tap "Mark as Paid" links • Record partial payments and track balances • Credits, adjustments, and a full payment activity log • See uninvoiced flight time at a glance ---Comprehensive Flight Logging--- • Track detailed flight logs with Hobbs and Tach time • Full multi-engine support with per-engine time tracking • Record multiple destinations and flight routes • Assign multiple pilots to flights • Add maintenance flight designations • Store detailed notes and flight information • Automatic flight duration calculations • Powerful filters to find any flight fast ---Group Chat for Every Aircraft--- • A dedicated group chat for each aircraft you manage • Message co-owners, students, and maintenance crew in one place • Share photos and videos, and @mention teammates • Push notifications and unread badges so nothing gets missed ---Smart Scheduling & Calendar--- • Visual calendar interface for flight scheduling • Sync reservations to your personal calendar (Apple, Google, and more) • Schedule maintenance flights and regular operations • Easy-to-use week and month views with quick "Today" navigation • Color-coded aircraft identification ---Professional Reports--- • Export flight logs as polished PDF or CSV reports • Add your company logo for branded reports • Include flight photos in emailed reports • Choose exactly what to include, right down to Hobbs and Tach times ---Team Collaboration--- • Invite partners, students, and maintenance crew • Role-based access control (admin, maintenance, pilot) • Multi-user airframe management • Shared flight logs, maintenance records, and billing • Real-time updates across all team members ---Fleet Management--- • Manage multiple aircraft in one app • Track individual aircraft status (airworthy/grounded) • Monitor airframe timing • Serial number and tail number tracking ---Who Uses FLTDIR--- • Private pilots and aircraft owners • Flight schools and training organizations • Aircraft rental companies • Maintenance organizations • Aviation clubs and partnerships Experience the most reliable flight management app made for real pilots. Don't settle for the bugs, glitches, crashes, and confusion in the other more expensive apps. Download Flight Director today and join thousands who trust the app to log flights, track maintenance, manage fleets, and get paid: the right way this time. FLT DIR: Where aviation meets efficiency. Better Aircraft Management.