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 "cells": [
  {
   "cell_type": "markdown",
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   "source": [
    "# Plane Range Example\n",
    "\n",
    "This example demonstrates how to use flight-mech to compute the range of a plane in various conditions."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Imports"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Python imports\n",
    "import os\n",
    "import sys\n",
    "sys.path.append(\"..\")\n",
    "\n",
    "# Additional imports\n",
    "import numpy as np\n",
    "import matplotlib.pyplot as plt\n",
    "\n",
    "# Flight-Mech imports\n",
    "from flight_mech.plane import Plane"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Plane definition\n",
    "\n",
    "Let us use in this case the Cessna Citation III defined in the database."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Load the plane\n",
    "plane = Plane(\"cessna_citation_III\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Range computation\n",
    "\n",
    "We can now define an altitude and compute the range for a fixed altitude and at a fixed pre-defined velocity."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "max range at 6700m [m] 5826348.502702705\n",
      "v [m.s-1] 121.49114223719054\n",
      "max range at fixed speed [m] 5739785.452624167\n"
     ]
    }
   ],
   "source": [
    "# Define the altitude\n",
    "z = 6700  # m\n",
    "\n",
    "# Print the results\n",
    "print(\"max range at 6700m [m]\", plane.compute_max_range_at_fixed_altitude(z))\n",
    "speed = plane.compute_reference_speed(z)\n",
    "print(\"v [m.s-1]\", speed)\n",
    "print(\"max range at fixed speed [m]\",\n",
    "      plane.compute_range_at_fixed_speed(speed, f=plane.f_max))"
   ]
  }
 ],
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