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spread sheet showing Formula Toy chassis wei
Formula Toy weight breakdown  
Tube # 1.75x.120 DOM 1.5x.120 DOM 1.25x.120 DOM
301 front hoop 124.5    
302 rear hoop 253.2    
303 roof 245.4    
304   rocker 196    
405   radiator 50    
B & C pillars 100    
square tube      
A & B pillar support 65    
back seat      
roof V   83  
windshield V     74
fire wall spreader 50.75    
rear spreader 50.75    
roof spreaders 80    
Front hoop 50    
# of bends / notches      
inches total 1265.6 83 74
divided by 12 12 12
Total per chassis in feet 105.47 6.92 6.17
Weight per foot  2.08 1.91 1.56
Total per tube  219.37 13.21 9.62
       
       
       
       
       
       
       
Formula Four weight breakdown  
Tube # length in DOM length in HREW square tube
301 front hoop 124.5    
302 rear hoop 277.2    
303 roof 269.4    
304   rocker 219    
405   radiator      
B & C pillars 100    
square tube      
A & B pillar support 65    
back seat      
roof V 104    
windshield V 74    
fire wall spreader 50.75    
rear spreader 50.75    
roof spreaders 120    
Front hoop 50    
# of bends / notches      
inches total 1504.6 0 0
divided by 12 12 12
Total per chassis in feet 125.38 0.00 0.00
Weight per inch  2.08    
  260.80    
       
       
       
105.47 ft of 1.75x1.20 tubing times 2.08 pounds per foot equals 219.3 pounds
6.92 ft of 1.5x.120 tubing at  1.91 pounds per foot equals 13.2 pounds 
6.17 ft of 1.25x.120 tubing at  1.56 pounds per foot equals 9.6 pounds
       
For a total chassis weight of 242.1 pounds, rounded op to 255 pounds to include welds.
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