Guns'n'Props
Airman
- 52
- Sep 18, 2009
I've finally done a bit of reading on the 262. I admit the 262 is not one of my favourite WW2 aircraft hence I know next to nothing other than the obvious. Rummaging thru' my book shelves I came across
"WW2 Fighting Jets" - Jeff Ethell and Alfred Price, Airlife 1994. It seems the 262 even had an Automatic Throttle Control as stated in pg54:
"On the Me 262s in service the throttles had to be advanced slowly up to 6,000 rpm to avoid burning out the jet units. Above 6,000 rpm the throttles could be pushed all the way forward at once, because an automatic fuel flow and pressure regulator prevented a too sudden increase in the amount of fuel entering the jets and a resultant overheating. By the end of the war a new regulator had been developed to control the fuel flow so that the throttles could be set at any point and the new regulator would ensure a safe and gradual acceleration of the engine to the rpm selected. Just before the war ended the new regulator had been tested and found satisfactory".
If the 6,000 rpm = 80% thrust this fits with what FLYBOYJ said earlier but it also highlights the possibility of damaging the engine if power was increase too suddenly below 6,000rpm. The fact that the Germans took precious time and resources to develop a new regulator may also imply that this was a common problem.
What are your thoughts / explanations ?
"WW2 Fighting Jets" - Jeff Ethell and Alfred Price, Airlife 1994. It seems the 262 even had an Automatic Throttle Control as stated in pg54:
"On the Me 262s in service the throttles had to be advanced slowly up to 6,000 rpm to avoid burning out the jet units. Above 6,000 rpm the throttles could be pushed all the way forward at once, because an automatic fuel flow and pressure regulator prevented a too sudden increase in the amount of fuel entering the jets and a resultant overheating. By the end of the war a new regulator had been developed to control the fuel flow so that the throttles could be set at any point and the new regulator would ensure a safe and gradual acceleration of the engine to the rpm selected. Just before the war ended the new regulator had been tested and found satisfactory".
If the 6,000 rpm = 80% thrust this fits with what FLYBOYJ said earlier but it also highlights the possibility of damaging the engine if power was increase too suddenly below 6,000rpm. The fact that the Germans took precious time and resources to develop a new regulator may also imply that this was a common problem.
What are your thoughts / explanations ?