[Bill Walker]

Originally Posted by RCnoob

Finally, what does it mean that the paragraph "should be amplified in light of the foregoing remarks." Amplified = ?

Amplified means add this information to what is in the basic manual. It would be most interesting to see what was in the spin section of the RAF Training Manual of the day. The additional information appears to me to be in two parts:
- you will loose a lot of altitude in the recovery
- after the initial "per the Manual" recovery the aircraft may still be stalled, leading to a tendency to enter a secondary spin

I suspect that the standard per the book spin recovery of the time emphasized breaking the yaw, whereas today we emphasize break the yaw AND move the stick forward to break the stall. Many low wing loading aircraft of today, or aircraft with limited nose up elevator power, will break the stall (and therefore the spin) themselves if you simply relax the stick back pressure: in fact constant stick back pressure is required to maintain the spin in many aircraft. The Hurricane may have been one of the first RAF aircraft where this was not true.

My interpretation is that the test pilots had not done their job - they had not come up with useful information about how spinning and getting out of a spin in a Hurricane is different, other than to say "you will lose LOTS of altitude."

Maybe it is because I have spent many decades testing aircraft, writing test reports, and writing flight manuals, but I found the statements you quoted (plus what I assume was in the RAF Training Manual of the day) tells me EVERYTHING I need to know to recover from a spin in a Hurricane. If they don't talk further about what is different in a Hurricane (compared to the training manual information) it is very possible that nothing further is different.

My impression is that the RAF's manual writers did have elitist attitude about "cartoons," but it may not have been rational.

I agree that they didn't use cartoons, but it is a big leap to call this elitist. They did what they thought would work, for their audience at the time.