So - what is the cost per hour's run time, of bearing replacement in a Jetcat P120, and what is it in a comparably sized Artesjet ?

That's not a rhetorical question BTW - I actually don't know what Jetcat's service prices are since I have not yet had to have any done on either of my engines. Guess I should ask.

You bring up a good point though. It would be nice to have an accurate indication of the total cost of ownership of each engine brand and size. e.g. a table that shows the frequency and cost of predictable service items (such as bearings) for each engine, as well as the cost of other common work - post crash inspection & cleaning, replacing a thermocouple, ECU, starter motor etc.

Of course, for items like periodic service, the service intervals differ, so the cost should not only be worked out as cost per unit run time, but should also include average shipping charges - that way if brand A costs $100 to replace bearings after on average 10 hours, and brand B costs $200 to replace bearings after on average 20 hours, brand B is actually cheaper because there is only one set of shipping & insurance charges vs A's two.

I do know that my P120 is working out cheaper than my RAM 500 so far - the RAM cost me about $400 after only 58 flights, when the starter motor died. Before I switched brands I asked Bob Wilcox what the price for a new starter motor on a 120 was, and I believe he said it was $52 - quite a bit of difference !! Still, there are probably other items that are more expensive, so a "total cost of ownership" comparisson would be really cool to see. I'm too lazy to do the research, but maybe someone else is willing (as well as unbiased)...

Gordon