The SAC (Sajab Aerospace Cargo) "Goliath", is my first ever large cargo aircraft. It is also the first new design I have created on my new Samsung Galaxy Tab S3 tablet, which replaces my old iPad 4 as my main device. It has a large cargo hold, and a rear ramp for access. Other features include functioning flaps, spoilers and thrust reversers. These features are operated using the VTOL and Trim sliders.

To lower the cargo ramp, move the VTOL slider UP.
To activate reverse thrust, move the VTOL slider DOWN.
To raise the spoilers, move the Trim slider UP.
To lower the flaps, move the Trim slider DOWN.

This aircraft has great cargo hauling capability. The aircraft is currently set up for long range. It has over 40,000 gallons of fuel in its tanks. If this is reduced, more cargo can be carried, although the range will be decreased. The weight of the aircraft in its current configuration is over 357,000 lbs, although the aircraft can still comfortably take off, fly and land with more weight. Please let me know what you think of this design, and offer any suggestions for improvements in the comments. Thanks!