Calculate going: The tread width is 250 mm so this can be our Going. Calculate total going: Flight 1 â 250 mm = 9 x 250 = 2250 mm plus Flight 2 â 250 mm = 10 x 250 = 2500 mm plus the landing width 900 mm = 5650 mm. Check results with BCA requirements: Rise: 171 mm is within the range of 115 to 190 mm.
You need to know that Foundation Brakes refer to the brakes located at each individual wheel. There are many different types of foundation brakes, but the most common one is the S-Cam drum shown in figure 5-2. For the pre-trip exam, you'll need to know all the parts of an S-Cam brake system shown in that figure.
Definition of foundation for English Language Learners : a usually stone or concrete structure that supports a building from underneath : something (such as an idea, a principle, or a fact) that provides support for something