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214
US0093001 Carthmore
Swarthmore College
Prototype
P
Hydrogen Fuel Cell
H2
Technical Inspections
Before they get on track, Prototype vehicles need to pass a series of 9 technical inspections. For some, the only goal is getting through this test. Many never even make it that far.
9/9
Complete
Complete
Passed
1. Inspection Queue Entry
4 / 4
SHELL logo front, Race number, Partner sticker / both sides
(4 a-c)
Lift here arrow stickers
(26 f)
Opening mechanism stickers
(30 c)
Other stickers < 400 cm²
(4 d)
Passed (one driver)
2. Driver's Control
16 / 26
Appropriate motorsports helmet - Primary Driver
(21 a-g)
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)
Single piece fire retardant racing suit (s) - Primary Driver
(22 a)
Fire retardant gloves - Primary Driver
(22 c)
Flat, closed toe shoes - Primary Driver
(22 b)
Cotton socks, no bare skin visible - Primary Driver
(22 b, e)
FCR balaclava if used - Primary Driver
(22 d)
Driver weight (> 50kg) - Primary Driver
(20 a)
Appropriate motorsports helmet - Reserve Driver
(21 a-g)
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)
Single piece fire retardant racing suit (s) - Reserve Driver
(22 a)
Fire retardant gloves - Reserve Driver
(22 c)
Flat, closed toe shoes - Reserve Driver
(22 b)
Cotton socks, no bare skin visible - Reserve Driver
(22 b, e)
FCR balaclava if used - Reserve Driver
(22 d)
Driver weight (> 50kg) - Reserve Driver
(20 a)
Ballast required?
(20 b)
Ballast based on lightest driver
(20 b)
Ballast of suitable type, proper location, sealed
(20 b)
Number of ballast locations
(20 b)
Passed
3. Vehicle Dimensions
6 / 6
Height < 1000 mm
(39 a)
Width < 1300 mm
(39 e)
Length < 3500 mm
(39 f)
Track width > 500 mm
(39 b)
Wheelbase > 1000 mm
(39 d)
Maxi height 1.25 X track width
(39 c)
Passed
4. Brakes
8 / 8
Brake documentation
(67 c ii)
2 independently operated Hydraulic brake system 1 front & 1 rear
(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 (one driver)
5. Driver Safety
21 / 26
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)
Must have 5 independent belts attached to structure - chassis fixing
(29 a)
Crotch strap under body
(29 b)
Safety belt must be in straight line between mounting point and shoulder
(29 f)
Safety belt has a tight fit (no slack), length adjustor high enough for adjustment
(29 c)
No modifications of safety belt
(29 h)
Safety belt strength verified
(29 d)
Internal/ext'l opening mech effective/intuitive
(30 c)
Method of opening accurately marked with sticker
(30 c)
No adhesive tape to close driver compartment from outside
(30 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)
Driver exit < 10 seconds - Primary Driver
(30 a)
Driver exit < 10 seconds - Reserve Driver
(30 a)
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)
Quality of body driver collision protection
(26 a-d)
Front Crumple Zone ≥ 100 mm
(25 a ii)
Crumple space-protect from front/side impact
(25 a) ii, 26 a)
Passed
6. Mechanical Vehicle Design
20 / 20
Vehicle weight < 140 kg
(39 g)
Windows material (polycarbonate/Lexan)
(25 f)
Electrical automotive horn, sound level > 85 dBa @ 4 m
(31 a-c)
Fully closed body
(25 h, k)
Solid floor & frame
(25 j)
No external appendages or sharp edges
(25 c)
Body panels do not change shape in wind
(25 b, d)
Chain/belt guard (all rotating equipment)
(34 g)
Running wheels (Pr:3/4)
(25 a) i )
Rims compatible with the dimensions of the tyre
(41 a-b)
Wheel compliance
(41 a, 48 c)
Tyres are in good condition
(49 d)
Tyre valves are accessible
(49 f)
Bulkhead rigid & fire resistant
(27 b, d)
Bulkhead isolates energy/driver compartment
(27 a)
Wheels isolated from driver, chassis, or body
(41 c)
Nothing touching wheels (e.g. batt, wires, etc...)
(41 d)
Steering is efficient and has no play
(32 b)
If electric steering, demonstrate default safe state
(32 d)
Intuitive steering control
(32 b)
Passed
7. Electrical Vehicle Design
19 / 19
Correct vehicle electrical schematic
(67 c)
Max 60 V Peak
(57 a)
Only one Battery, 2 terminals, single physical package
(57 b) ii)
Batt mount firm, behind b/head, not under seat
(57 c)
Main fuse < 300 mm from +ve terminal ADD fuse size
(57 e)
Main fuse is sized correctly for the system
(57 e)
Accessory circuit isolated from propulsion
(65 k, m)
Drivers Display
(57 i)
Elec system has proper fuse protection
(57 g)
Electrical enclosures - transparent
(57 j)
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 g) i)
External Estop mounting location
(37 g) ii)
Latching External Estop push button (no push/pull levers)
(37 k)
Blue triangle sticker
(37 g) iii)
Passed
8. Energy Verification
18 / 18
Documentation (schematic, H2 flow, fuel cell, regulator)
(65 a) i, 67 c)
No external starter battery
(65 k) i)
Hydrogen cylinder firmly installed
(65 b) iv)
Regulator installed correctly
(65 a) iv 1)
Pipe H2 suitable, S.Steel (1.0 bar), PTFE (<1.0 bar)
(65 e)
Connectors H2 OK (comp type, no Teflon)
(65 e) iv)
Normally closed solenoid valve
(37 f) i)
Pressure relief valve installed and set correctly
(65 a) iv 4)
Pressure relief valve vents outside vehicle
(65 a) iv 4)
Purge pipe vents outside or not used
(65 f)
Correct system design
(65 a) iv)
2 ventilation holes 5 cm²
(65 c)
Hydrogen sensor at highest point
(65 d)
Leak Check OK
(65 d)
Flowmeter installed and functioning
(65 a) v, g) iii)
JM Counting Correctly
(56 c)
Emergency shutdown function (H2 Valve & Propulsion)
(37 f) ii)
Efficiency of Estop (3 methods, valve/MC)
(37 f) ii)
Passed
9. Final Check
4 / 4
Technical Sticker received
Safety Sticker received
Pit Crew vests received
Transponder received
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