As I watched loaded Caravans takeoff in Alaska back in the 90's, they could definitely use more horsepower, the problem is that the 331 uses too much battery power during starts, for Arctic temperatures
@@dxhunter5277 Yeah in Fairbanks AK we had a Dornier 228 with 331's for a few years, with a good preheat it was alright, but stuck in a village when the overnight temps would drop to 20 below zero and you were guaranteed a hung start, the aircrafts battery just didn't have the amperage to push the engine into a normal start. And the aircraft uses a 24 volt system, so you cant use standard vehicles to help start them. The free turbine PT-6 would always start in the same scenario, with no problems.
Hi Juan Pablo, if there is enough power available, adding more blades is the best way to transform that engine power into thrust. Example of the engine power on the number of propeller blades can be seen in the case of Lockheed Martin C130 Hercules. The Hercules C-130A used a three bladed propeller for absorbing the 4000 shaft horsepower of the T56-9 tp engine. Now the new Super Hercules C130J use a six bladed propeller to absorb the 4600 Shaft horsepower of the RR AE 2100D3 tp-engine.
Excelente 👌👌
As I watched loaded Caravans takeoff in Alaska back in the 90's, they could definitely use more horsepower, the problem is that the 331 uses too much battery power during starts, for Arctic temperatures
Hello Soul Flyer thanks for your comment. always interesting to read something new.
@@dxhunter5277 Yeah in Fairbanks AK we had a Dornier 228 with 331's for a few years, with a good preheat it was alright, but stuck in a village when the overnight temps would drop to 20 below zero and you were guaranteed a hung start, the aircrafts battery just didn't have the amperage to push the engine into a normal start. And the aircraft uses a 24 volt system, so you cant use standard vehicles to help start them. The free turbine PT-6 would always start in the same scenario, with no problems.
@@Agislife1960 thanks for your comment, i think you work in aviation?
@@dxhunter5277 I did for 20 years as an A&P, 13 of those years were in Alaska
@@Agislife1960 do you know this guy? ua-cam.com/video/laaTeOpimGQ/v-deo.html
Hallo, weisst du wie lange die C208 noch in Bad Ragaz bleiben wird und wie durftest du reinschauen? Schönes Video LG Nico
Ok so how is the door closed after the last guy jumps out? Is it a mechanical motor?
It is called a second person. Kind of expensive but it works.
He has the flood lights on in broad daylight. It's killing me.
What pt6 does that have? The newer ones have a pt6-140 that produces 850 hp,so is that a 60a?
Hi mtashland1 it is a Honeywell (Garrett)TPE 331-12JR . Not a Pratt & Whitney PT6.
Whats the name of the airport you are flying out of?
Hi John, the Airfield is Bad Ragaz ( ICAO code is LSZE) eastern part of Switzerland. Best regards Silvio.
Is it better with 5 blade props than the EX 4 blade? Nice flying guys
Hi Juan Pablo, if there is enough power available, adding more blades is the best way to transform that engine power into thrust. Example of the engine power on the number of propeller blades can be seen in the case of Lockheed Martin C130 Hercules. The Hercules C-130A used a three bladed propeller for absorbing the 4000 shaft horsepower of the T56-9 tp engine. Now the new Super Hercules C130J use a six bladed propeller to absorb the 4600 Shaft horsepower of the RR AE 2100D3 tp-engine.
Wel the ex(208B) is a bit longer than this 208 and there is a stc for these from texas turbine for a honeywell engine @900shp 4 bladed prop.
why didn't they build these with RG???
Because it is too slow to benefit much. It would lower the useful load since RG would be heavier.