roga drone

Roga drone

"Quality in Flight"

ROGA DRONE​

Remote Operated Green Applications

Unlike existing systems that rely on low or ultra low volumes of water to get more productivity the U7AG has been designed for broadacre application following current label rates and regulations for pesticides.  The U7AG sprays at 1to 3 metres above the crop canopy at speeds from 0 to 100 kph with a 7m or 23-foot boom. Productivity is achieved with the use of a fully automated closed system refill station that can refill in 60 seconds.

 

ROGA DRONE​​

Technical Specifications:

Coverage: 

100-150 acres/hr @2-4gpa

Spray Width:  

7m (23’)

Spray Speed:

0-100kph

Tank Volume:

45l (12 gal)

Refill Time:

60 sec

MTOW: 

90 kg

Top Speed:

120 kph

Max Payload:

50 kg

Battery Range:

30 km

Hybrid Range:

500 km

Radio Range:

10 km

ROGA DRONE​

Price starts at $90,000 CAD

Drift Control

U7AG’s wings are designed with an ultra-high aspect ratio, winglets and laminar flow sections, reducing wing tip vortices and trailing edge turbulence, which minimizes flow-induced drift.

At MTOW of 90 kg, with a 27 m/s (97.2 kph) cruise speed limit, Ke = 0.5*m*v^2 = 32.8 kJ

If the cruise speed limit is bumped up to 28 m/s (100.8 kph) then Ke goes over at 35.28 kJ

The threshold for crossing 34 kJ at 90 kg is around ~98.95 km/h, so we just need to code the cruise speed limit to below 98.95 km/h and Ke will be under 34 kJ

In practice with airframe weight reductions so far actual takeoff weight will be below 90kg so we should have more room to increase speed if needed.

The cell has a pretty good specific energy, but we’ll need around 600A continuous discharge which is higher than 140A (~2.5C) in the datasheet.

I believe lithium batteries generally have a trade-off between capacity per kg and discharge per kg, these cells are optimized for energy storage, perhaps the manufacturer also makes a different type that’s optimized for discharge rate?

As a guideline coverage would be 150acres/h at 2gpa; 100acres/h at 4gpa and 50acres/h at 10gpa.