Shell Eco-marathon Brazil 2025 | Pato a Jato

Brazil 2025

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BR0041001 Pato a Jato

UTFPR Pato Branco

Prototype P Internal Combustion Engine ICE Ethanol

Results

Attempt 3

521.2

1,225.8

km/l

mpg us

Best attempt

Current Rank

2nd / 3

1 699.1 km/l 1,644.5 mpg us +34.1%

2 521.2 km/l 1,225.8 mpg us

3 134.4 km/l 316.2 mpg us -74.2%

Technical Inspections

Before they get on track, Prototype vehicles need to pass a series of 10 technical inspections. For some, the only goal is getting through this test. Many never even make it that far.

10/10
Complete 10/10 inspections passed

Passed

1. Inspection Queue Entry

8 / 8

Passed

2. Vehicle Weight

2 / 2

Passed

3. Driver & Safety Gear

21 / 21

Appropriate motorsports helmet - Primary Driver (21 a-f)

Three-quarter helmet - Primary Driver (21 b)

Helmet label readable - Primary Driver (21 c)

Helmet has no cracks/indentations - Primary Driver (21 c)

Visor is clear and has no cracks - Primary Driver (21 d)

Racing suit (s) / Gloves - Primary Driver (21 d)

Single piece fire retardant racing suit - Primary Driver (22 a)

Shoes; socks & balacava/FRC - Primary Driver (22 b, d)

Driver weight (> 50kg) - Primary Driver (20 a)

Appropriate motorsports helmet - Reserve Driver (21 a-f)

Three-quarter helmet - Reserve Driver (21 b)

Helmet label readable - Reserve Driver (21 c)

Helmet has no cracks/indentations - Reserve Driver (21 c)

Visor is clear and has no cracks - Reserve Driver (21 d)

Racing suit (s) / Gloves - Reserve Driver (21 d)

Single piece fire retardant racing suit - Reserve Driver (22 a)

Shoes; socks & balacava/FRC - Reserve Driver (22 b, d)

Driver weight (> 50kg) - Reserve Driver (20 a)

Ballast required?

Ballast based on lightest driver (20 c)

Ballast of suitable type, proper location, sealed (20 b)

Passed

4. Brakes

11 / 11

Brake documentation (67 c ii)

2 Hydraulic brake system 1 front & 1 rear (43 a)

1 single Hydraulic circuit per axle (43 a)

Foot operated front brake by single pedal (43 a)

Rear brake by single lever or pedal (43 a)

Brake pedal 1,000 mm², min width 30 mm (43 a v)

Brake rotors point in direction of wheel rotation (43 a)

No acting on tyres (43 a)

All wheels have brakes (43 a)

Ergonomy (43 a)

Effectiveness Ramp Test - Dynamic (43 b)

Passed

5. Driver Safety

23 / 23

Safety belt must be designed for motorsports use (29 g)

Mounting points are clearly accessible for inspection (29 e)

Safety Belts = 5 mounting points (29 a-b)

Safety Belts - chassis fixing (29 d)

Must have 5 independent belts attached to structure (29 a)

Crotch strap under body (29 b)

Top strap at angle (29 b)

Safety belt must be in straight line between mounting point and shoulder (29 f)

Length adjustor high enough for adjustement (29 b)

Safety belt has a tight fit (no slack) (29 c)

No modifications of safety belt (29 h)

Safety belt strength verified (29 d)

Roll bar resist 70 kg all directions (26 d)

Roll bar 50 mm > driver's head - Primary Driver (26 b)

Roll bar width > shoulders - Primary Driver (26 c)

Roll bar 50 mm > driver's head - Reserve Driver (26 b)

Roll bar width > shoulders - Reserve Driver (26 c)

Front vis 180° & Tint - driver must be seen - Primary Driver (28 a)

Rear visibility - see cheat sheet - Primary Driver (28 b)

Front vis 180° & Tint - driver must be seen - Reserve Driver (28 a)

Rear visibility - see cheat sheet - Reserve Driver (28 b)

Driver exit < 10 seconds - Primary Driver (30 a-d)

Driver exit < 10 seconds - Reserve Driver (30 a-d)

Passed

6. Vehicle Dimensions

6 / 6

Passed

7. Mechanical Vehicle Design

27 / 27

Passed

8. Electrical Vehicle Design

18 / 18

Correct vehicle electrical schematic (67 c)

Max 60 V Peak (57 a)

Only one Battery, 2 terminals, single physical package (57 b, i)

Batt mount firm, behind b/head, not under seat (57 c)

Main fuse < 300 mm from +ve terminal ADD fuse size (57 e)

Elec system has proper fuse protection (57 e)

Only allowed electrical devices powered by accessory battery (57 h)

Electrical enclosures - transparent (57 j)

Wiring organized and safe (27a, 57 k)

Electrical wiring connections visible/no splices (57 k)

JM Installation in engine compartment (56 c)

JM visible and accessible from outside (56 b)

JM Correct circuit location (56 c)

JM Counting Correctly (56 c)

Internal Estop Switch (37 f i)

External Estop mounting location (37 f ii)

Latching External Estop push button (no push/pull levers) (37 g)

Blue triangle sticker (37 f iii)

Passed

9. Energy Verification

25 / 25

Passed

10. Final Check

4 / 4

Previous participation
Event	Vehicle category	Energy class	Rank	Result
Brazil 2024	Prototype P	Internal Combustion Engine ICE (Ethanol)	2	508.54km/l 1196.16mpg us
Americas 2024	Prototype P	Internal Combustion Engine ICE (Ethanol)	4	550.05km/l 1293.81mpg us
Brazil 2023	Prototype P	Internal Combustion Engine ICE (Ethanol)	2	647.14km/l 1522.18mpg us
Americas 2023	Prototype P	Internal Combustion Engine ICE (Ethanol)	2	767.85km/l 1806.1mpg us
Brazil 2022	Prototype P	Internal Combustion Engine ICE (Ethanol)	1	619.08km/l 1456.18mpg us

Brazil 2025

BR0041001 Pato a Jato

UTFPR Pato Branco

Results

Attempt 1

Attempt 2

Attempt 3

Attempt 4

Current Rank

Technical Inspections

1. Inspection Queue Entry

2. Vehicle Weight

3. Driver & Safety Gear

4. Brakes

5. Driver Safety

6. Vehicle Dimensions

7. Mechanical Vehicle Design

8. Electrical Vehicle Design

9. Energy Verification

10. Final Check

Previous participation