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The Drone Warehouse JJR/C H20, User Manual, Page: 9 / 9

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The Drone Warehouse JJR/C H20 User Manual Download Page 9

 

Version: 13-Oct-17 

© 2017 The Drone Warehouse Ltd. All Rights Reserved 

Page 9 of 9 

Wind speed table for Conversion of Knots, Beaufort, m/s and km/h.

 

Beaufort 

Wind 

Force 

Label 

km/h 

Knots  Effect on sea 

Effects on land 

0 

Calm 

1 

1 

Sea like a mirror 

Calm. Smoke rises vertically. 

1 

Light Air  1-5 

1-3 

Ripples with the appearance of scales 

are formed, but without foam crests 

Wind motion visible in smoke. 

2 

Light 

Breeze 

6-11 

4-6 

Small wavelets, still short, but more 

pronounced. Crests have a glassy 

appearance and do not break. 

Wind felt on exposed skin. Leaves rustle. 

3 

Gentle 

Breeze 

12-19  7-10 

Large wavelets. Crests begin to break. 

Foam of glassy appearance. Perhaps 

scattered white horses. 

Leaves and smaller twigs in constant 

motion. 

4 

Moderate 

Breeze 

20-28  11-15  Small waves, becoming larger; fairly 

frequent white horses. 

Dust and loose paper raised. Small 

branches begin to move. 

5 

Fresh 

Breeze 

29-38  16-21  Moderate waves, taking a more 

pronounced long form; many white 

horses are formed. Chance of some 

spray. 

Branches of a moderate size move. 

Small trees begin to sway. 

6 

strong 

Breeze 

39-49  22-27  Large waves begin to form; the white 

foam crests are more extensive 

everywhere. Probably some spray. 

Large branches in motion. Whistling 

heard in overhead wires. Umbrella use 

becomes difficult. Empty plastic garbage 

cans tip over. 

7 

Near 

Gale 

50-61  28-33  Sea heaps up and white foam from 

breaking waves begins to be blown in 

streaks along the direction of the wind. 

Whole trees in motion. Effort needed to 

walk against the wind. Swaying of 

skyscrapers may be felt, especially by 

people on upper floors. 

 

 

Summary of Contents for JJR/C H20

Page 1: ...anual for you to get the most enjoyment from your drone It does not replace or void any of the warnings in the original manufacturer s manual www thedronewarehouse co nz Contents 1 Warnings 2 2 Assembly 4 3 Charging 4 4 Controls 5 5 Before Use 5 6 Pairing 6 7 First time users 6 8 Flight Adjustment and Trimming 6 9 Learning to fly 7 10 Flying 7 11 Troubleshooting 8 Wind speed table for Conversion o...

Page 2: ...eration in unsafe areas This product is intended for use by age 15 years or older Please ensure the product is operated under a safe environment We recommend that you seek the assistance or an experienced pilot before attempting to fly our products for the first time A local expert is the best way to properly assemble setup and fly your model for the first time This product requires a certain degr...

Page 3: ...oper usage Use the Charger from the factory supplied to avoid potential fire or explosion Please stop the use or the charge of the battery should there be an unusual increase in battery temperature Continued use of this battery may cause it to expand deform or explode resulting in fire hazards DISCONNECT BATTERY AFTER USE Disconnect the flight vehicle battery safely at the end of the flight This s...

Page 4: ...ifferent type Installing Drone Battery Insert the battery into the battery compartment under the drone with the wire at the open end Plug in the battery to the socket making sure the ridge on the battery plug aligns with the groove in the socket on the drone 3 Charging The drone is supplied with a USB Charging cable This can be plugged into any USB socket on a computer USB phone charger or car USB...

Page 5: ...c Check if the Controller and Drone batteries are fully charged Make sure there are no people or obstructions in the vicinity Practice hovering for safety and control this is the most basic action This means keeping the drone at a fixed height and position Power Switch Trim Fwd Bwd Flip Roll Throttle Rudder Aileron Elevator Fast Slow Aileron Elevator Power LED T H R O T T L E RUD DER AILE RONS E L...

Page 6: ...the tail of the drone pointing towards yourself Increase the throttle until the drone lifts off If the drone lifts off vertically without moving in any other direction you are good to go Often with a new drone or after maintenance e g propeller change the drone will not lift off straight up but will drift in one direction or another sometimes more than drifting in which case you need to correct fo...

Page 7: ...tter where the drone points it will follow the forward left right and back of the controller relative to the operator Push in on the left hand joystick to change to headless mode The lights on the drone will change from permanently on to doing a double flash to indicate the drone is in headless mode Push the left hand joystick in again to return normal operating mode To re calibrate headless mode ...

Page 8: ...tact on battery terminals 1 Turn on Controller and ensure flight vehicle battery is inserted properly 2 Use fully charged batteries 3 Re seat the battery and ensure good contact between battery contacts Motor does not respond to throttle Drone LEDs flashing Drone battery needs charging Charge drone battery or replace with fully charged battery Propellers spin but unable to take off 1 Propellers on...

Page 9: ...smaller twigs in constant motion 4 Moderate Breeze 20 28 11 15 Small waves becoming larger fairly frequent white horses Dust and loose paper raised Small branches begin to move 5 Fresh Breeze 29 38 16 21 Moderate waves taking a more pronounced long form many white horses are formed Chance of some spray Branches of a moderate size move Small trees begin to sway 6 strong Breeze 39 49 22 27 Large wav...

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