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  • HOUSTON Class Quadcopters

    Houston V1.1 Feb 18, 2023

    Overview

    Airframe

    Houston

    Airframe

    Houston

    Last Reference Update

    Aug 25, 2023

    Weight

     

    Flight Controller

    Pixhawk 5X

    Supported Propellers

    10x4.5 - 10x6 , 12x4.5

    Supported Batteries

    3s 4000mAh, WARG internal type #1

    Classification

    Multirotor (Quad)

    Houston class aircraft can be configured to run with multiple flight computers and propeller. Be careful when changing configurations as the paramaters are tuned for a very specific setup.

    Please head to the “Quick Start” subpage if you are looking to use Houston for a flight test.

    Quick Start Guide: Houston Quick Start Guide - SysInt - WARG (atlassian.net)

    Hardware Configuration: Houston: Hardware Configuration - SysInt - WARG (atlassian.net)

    Software Configuration:

    Hardware Configuration & Identification

    < image >

    All HOUSTON class aircraft are built to support multiple configurations, and have undergone many revisions.

    In all standard configurations, RED arms correspond to the left side of the aircraft, while white arms correspond to the right side of the aircraft.

    V2 (latest)

    Version 2 metal landing gear

    The second iteration of houston has metal landing gear, enabling a third carrier plate for additional payload such as the jetson or 200$ camera. V2 is also characterized by the use of a power monitor, and NEO M9N GPS.

    V1

    Early versions of Houston-class quadcopters used either metal landing gear (cover photo), or 3d printed landing gear as shown in the photo above.

    Software configuration

    All PX5/6 related software configuration can be done using mission planner.

    Controller Configuration

    Houston class aircraft make use of ardupilot flight modes. They are as follows:

    Flight Mode

    Position/Switch

    Operation

    Flight Mode

    Position/Switch

    Operation

    Stabilize

    1

     

    Altitude Hold

    2

     

    Loiter

    3

     

    Land

    4

     

    Auto

    5

     

    Return To Launch

    6

     

    All controllers @ WARG operate in Mode 2, this means that for houston, the following mapping is employed:

     

    There are a few special functions

    Switch

    Function

    Switch

    Function

    SF

    Telemetry logging on/off

    SH + SA

    Arm (SH Pre-arm with throttle down)

    SA

    Disarm

    SB

    Flight Mode Override

    LS

    Display Brightness

    RS

    Volume

    SE

    Reset Total Flight Time

    Understanding the main menu

    You will see a few items in the top bar, a channel list on the left, and then the model name or image along with two flight timers. Here’s what it all means:

    Top Bar

    • TPWR: Transmission power. If this starts going up, your transmitter is working harder to get a signal to your drone. Try and keep this < 500mW if you can. You should not see it go > 100mW when flying LOS if antenna orientation is correct.

    • TQly: What % of packets are being understood by the drone. Try and keep this > 80. Minimum flyable LQ is around 30%.

    • TR8: This shows you the value of your wireless trainer (if enabled). It’s an easy way to confirm their flight mode before you hand off control, and also lets you know when they are connected.

    • Batt: This is the controller battery voltage. Try and keep this > 6.6 v.

    • speaker/battery: These two symbols indicate your volume and remaining battery

    • RF bar: Indicicates RSSI.

    • Time/Date: This is the time and date, you can use this to find your logs later

    Left side

    • Channel monitor: Shows you all active channels and what you are outputting. Good for debugging your current link status as well as your trainer link status

    Right Side

    • Name/Image: Name or image of the model. This is good to make sure you have the right model

    • Curr FT: Current flight time (from when you armed and throttle is > 0). This is useful for tracking how long you have flown in this flight (i.e. doing one flight on one battery?)

    • Tot FT: Total flight time (can be reset by using switch SE). This is useful for tracking how long you have flown if you are doing multiple arm/disarm sequences on one battery.

     

    Operating Limits

    Max Flight Time

    8 mins

    Max Wind (any direction)

    20 kts

    Max Altitude

    120 m

     

     

    Special Operations

    Controled Airspace

    Emergency Procedures

    • Do something

    • Do something

    Loiter time: X seconds

    Default action: RTL

    • Do something

    • Do something

    Batt Life: X

    Top Speed: X