BN-7914 



Figure 8. --Rear view of test shipment loaded cross- 

 wise offset by-s tacks -and-layers in which air cir- 

 culation along the sidewalls is blocked. Note that 

 open spaces at sides of the layers of rear stack 

 are blocked by closed spaces (boxes) in identical 

 layers of the preceding stack. 



This allowed more circulation of air around the commodity with a marked ad- 

 vantage in temperature over Tests 30, 31, 32, and 34. This advantage is 

 apparent in table 3, which shows the fruit temperatures for Tests 30 through 



35 at destination and for Tests 36 and 37 at both origin and destination. 

 Even with the better temperature results in Test 33 there was still room for 

 other improvements in the loading methods. 



On the basis of the findings in Tests 30 to 34, it was decided to revise 

 the crosswise offset loading on succeeding tests of apples from contuolled- 

 atmosphere storage in an attempt to improve air circulation in the loads. 

 Therefore, three experimental tests, 35, 36, and 37, were loaded by the cross- 

 wise offset method, except that the boxes in all the crosswise stacks sub- 

 sequent to the first crosswise stack were located in the same position in each 

 stack as the boxes in the first stack. Thus continuous air channels were 

 provided along the entire length of both sidewalls of the trailer (fig. 10). 

 In addition, there were 2 inches of space between the end of the load and the 

 rear doors of the trailer in Test 35, and 12 inches of space in both Tests 



36 and 37. The trailer body used in Test 35 was also equipped with vertical 

 wall strips on the sidewalls which extended from the floor to halfway to the 



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