300 flights on Wren engine

heliman53 · 10-10-2007, 08:19 PM

Flew flight number 300 on my Wren Turbine today, let's see that's how much Jet A? Craig B

Sara · 10-11-2007, 03:18 AM

Oh ... quite a few gallons! Well done, it's always good to hear of people getting a lot of use from their engines, that's what we make them for.

How many hours runtime is that?

Sara Parish
Wren Turbines

heliman53 · 10-11-2007, 10:04 AM

Sara, I beleave it is at 52.6 at the moment, I had thought I was over that allready but I misscalculated when converting it before. Fat fingers on keyboard I suspect! Anyway the engine itself has been absolutely trouble free. I had some flameouts at around twenty hours which turned out to be a break in the ground wire going to the fuel pump. I expect I will get to around 65 to 70 hours before sending the gas generator in for bearings as I am running a max rpm of 137,000. Craig B

Sara · 10-12-2007, 03:46 AM

Just keep running it - at 137,000 you should get a lot more use out of it yet. Just listen to it when it spools down, if the bearings are starting to wear you'll hear it grumbling.

Sara Parish
Wren Turbines

heliman53 · 10-12-2007, 07:18 AM

Sara, still sounds sweet, only grumbling so far is me. Craig B

10-10-2007, 08:19 PM	#1
heliman53 Registered Users My HF Map location Join Date: Jun 2006 Location: Goose Creek,SC	300 flights on Wren engine Flew flight number 300 on my Wren Turbine today, let's see that's how much Jet A? Craig B

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10-11-2007, 03:18 AM	#2
Sara Registered Users Join Date: Mar 2005 Location: Yorkshire, England	Oh ... quite a few gallons! Well done, it's always good to hear of people getting a lot of use from their engines, that's what we make them for. How many hours runtime is that? Sara Parish Wren Turbines

10-11-2007, 10:04 AM	#3
heliman53 Registered Users Thread Starter My HF Map location Join Date: Jun 2006 Location: Goose Creek,SC	Sara, I beleave it is at 52.6 at the moment, I had thought I was over that allready but I misscalculated when converting it before. Fat fingers on keyboard I suspect! Anyway the engine itself has been absolutely trouble free. I had some flameouts at around twenty hours which turned out to be a break in the ground wire going to the fuel pump. I expect I will get to around 65 to 70 hours before sending the gas generator in for bearings as I am running a max rpm of 137,000. Craig B

10-12-2007, 03:46 AM	#4
Sara Registered Users Join Date: Mar 2005 Location: Yorkshire, England	Just keep running it - at 137,000 you should get a lot more use out of it yet. Just listen to it when it spools down, if the bearings are starting to wear you'll hear it grumbling. Sara Parish Wren Turbines

10-12-2007, 07:18 AM	#5
heliman53 Registered Users Thread Starter My HF Map location Join Date: Jun 2006 Location: Goose Creek,SC	Sara, still sounds sweet, only grumbling so far is me. Craig B