Above you can see the relative size of a normal training basket and the type of basket we use for transporting the birds in the year 2000. The dimensions are 46" x 96" x 8½".
The next picture below shows the sliding doors, on the narrow side for releasing the birds at the training or race point, on the wide side for having them walk into the basket at basketing. This saves a lot of work and the birds remain tame. This too decreases stress levels - the birds' and mine.