The Secret Horsepower Race by Calum Douglas (and piston engine discussion)

[Pasoleati]

Hi Pasoleati,



So you have evidence of one incident and agree that it would be ridiculous to draw any conclusion from single incidents.

As stuff you claim something about usually turn out not to support what you say as soon as I can see it for myself, I'll just wait until there's more I can see for myself.

Regards,

Henning (HoHun)

No, I don't agree. Plus let me ask you again: Would a unit commander request that the training programme be shortened to 4.5 hours and 13 landings specifically to save engines without substantial evidence that the failures are caused by the training use?

Finnish National Archives are open to foreigners as well. You are free to gather all the evidence you want. Go ahead.

Meanwhile, some pertinent info. During the year 1943, when 48 G-2s in total (18 of which were replacements for losses arrived, the best engine achieved 86 hours before overhaul. No fewer than 10 engines failed. 16 engines had to be changed. 5 engines had bearing failures which were reclamated and 5 replacements were received. Disastrous performance! For comparison, the Twin Wasp engine of the Myrsky prototype ran over 230 hours before being removed for overhaul. And this at a time when DB engines received "factory tech support" while tech support for the Twin Wasp had ceased years, before.

What is more, regarding 1944, some statistics were compiled including "engine incidents "per flying hour, that is the number of aborted flights due to engine malfunction. The 109 (super-DB!) achieved 181 hours/engine incident. The Buffalo achieved 2100 hours/incident, the Curtiss Hawk did 666 hours/incident and even the crappy Morane 206 hours/incident. The relatively rare Merlin III achieved over 1000 hours/incident (during the service use in whole). The Jumo 211 achieved around 150 hours while the Bramo (Dornier Do 17) over 500 hours.

So of the 4 main fighters in 1944, the worst by far had that masterpiece DB. Again, manufacturer's tech support had ceased for all other 3 years, ago while DB had it most of the year. In fact, even the Klimov VK-105 was found to more reliable than the wonder DB; instead of blowing up, it wore loose over hours and lost some power.

 

[HoHun]

Hi Pasoleati,

Finnish National Archives are open to foreigners as well. You are free to gather all the evidence you want. Go ahead.

You want to prove a point, so the burden of proof is entirely yours.

I'll not be responding to the rest of your post because it's a classical diversion (sleight of hand #29 in Schopenhauer's "Eristic Dialectic") to distract from the fact that you can't defend the point you originally made.

Regards,

Henning (HoHun)