Best Propeller Calc Apps

Fuel Calc - HCM RMC

by Hien Van

Free

This application helps ground staff calculate aircraft fuel loads and permissible fuel discrepancies. It supports unit conversions between gallons, liters, and kilograms, referencing VNA documentation for acceptable fuel difference margins.

Fastener Calc

by Bossard AG

$2.99

This app provides engineers, technicians, and students with essential tools for bolted joint development. It includes converters for various units and geometrical and mechanical calculators for dimensioning and design in joining technology.

Rotor Load Calc

Interagency Load Calc Tool

Free

This tool simplifies helicopter load calculations for pilots flying under government contracts. It generates fillable PDFs for performance calculations, signature, and submission, saving time and reducing errors. Easily manage and share your flight planning documents.

CINCINNATI Load Calc

Press Brake Tonnage Calculator

Free

This tool helps metal fabricators calculate the necessary tonnage for air bending parts on press brakes. It guides users through selecting material type, thickness, and die opening to determine tonnage, minimum flange length, and inside bend radius.

ConeCalc

Calculate Flat Patterns

Free

This app calculates the flat pattern dimensions needed to create a cone from sheet material. It allows users to input desired cone dimensions and generates a drawing of the flat pattern, also calculating how many cones can be cut from a given sheet size.

Pilot Duty & Performance Calc

Aviation Calculator

$4.99

This app simplifies complex aviation calculations for pilots, including duty time, performance metrics, and landing data. It consolidates numerous aviation tools into a single, easy-to-use application for professional pilots.

Boating Calcs

Calcs and Useful References

$1.99

This app offers over 120 boating calculations and unit conversions, along with 120 reference pages. Easily solve a variety of boating-related problems, save and share your calculations, and quickly find the tools you need. It includes extensive reference material across various boating disciplines.

Elevator Calculator

Feet-Inches Math for Mechanics

Free

A specialized calculator for elevator mechanics, offering precise calculations in feet, inches, and fractions. It includes tools for hoistway dimensions, rope length, clearance checks, and electrical calculations like Ohm's Law and voltage drop, all designed for field use.

Time-Calc

by Kazuyuki Saito

Free

This app simplifies time calculations for personal flight logs. It exclusively handles addition and subtraction of hours and minutes, automatically interpreting the last two digits of any input as minutes.

AirlineCalc

by Alex Deutz

Free

This aviation utility app offers pilots and aviation professionals essential tools for in-cockpit calculations and flight planning. It includes features for crosswind analysis, flight time compliance, time zone conversions, and temperature adjustments, all in an offline-capable interface.

Calc+α

Save Calculation/Recalculate

Free

This utility app simplifies daily calculations with an intuitive interface. It features a history of your calculations, allows for easy editing and recalculation, and provides convenient tax and division functions. Organize your finances and avoid manual note-taking.