Therefore, this question uses a . But in the real EASA bank, they predefine that the Dry Operating Index is directly given by loading table or simple addition of mass and index using:
Given the options, correct calculation is:
a) 34,970 kg / 114.8 b) 34,970 kg / 115.2 c) 35,130 kg / 114.8 d) 35,130 kg / 115.2 Explanation: Step 1 – Calculate Dry Operating Mass (DOM) DOM = BEM + Crew & Crew Baggage + (other fixed operational items if any – here none except crew) DOM = 34,560 kg + 410 kg = 34,970 kg easa atpl question bank
Actually: only if index units are moment/constant and the constant is the same. Let’s test option a: DOI 114.8.
Crew added index = 114.8 – 112.4 = 2.4. Then 2.4 = (410 × arm)/CF → CF = (410 × 142)/2.4 ≈ 24,258 — not round. Therefore, this question uses a
Thus, is consistent.
First, convert BEM and crew items into moment index. Crew added index = 114
Index formula typically: , but in this question bank, they provide index directly for BEM and arm values for others. We must compute additional moment index from crew: