The only thing that is out of sequence is the mag activation, on most large engined aircraft you spool up the powerplant first and while its spinning you then activate the magnetos. That way if there is any raw gas laying in the exhaust manifold because of the amount of prime, you lessen the chances of a large intake,backfire or engine fire. But still a neat video none the less. Most pilots will count from six to nine blades before throwing the mag switch. Sometimes on certain aircraft the mixture is left in Idle Cutoff also and as soon as the powerplant fires on the prime the pilot will place it at auto rich or full rich as this lessens the chances of flooding the powerplant. Other reasons for the delayed mag are also to ensure that even though the powerplant was rotated by hand to check for hydraulic lock, if any oil flowed back into the intake and even though the starter develops beaucoup torque there is less of a chance of pushing a cylinder off the case or destroying a piston which could happen if the operator did not count blades during startup. If it does happen though the powerplant will still need work to check for bent rods and such and the mechanic will probably heve to remove sparkplugs to free it up. Oil for the most part is a non compressible fluid. The reason the powerplant develops hydraulic lock when it sits static is for another time.
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Topic: Spad Training - HistoMod in-game footage (Read 3296 times)
