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-   -   OT, Sort Of: Thielert and Van Bortel (https://vansairforce.net/community/showthread.php?t=12704)

Dave_Boxall 11-23-2006 12:02 AM

Quote:

Originally Posted by airguy
I can't even get Wilksch to answer my emails, over a couple of months of trying. Between that and seeing no updates to their website for 17 months now, that's a pretty big negative indicator.

I've been talking with Kerry - Kerry.Ashcroft"at"wilksch.com - about my installation issues & alway get a reasonable response.

Dave

Pilottonny 11-23-2006 01:46 AM

George,

The fuel prices I quoted, is approx. what we pay at the moment IN EUROPE. As you know, a lot of it has to do with different taxes on different fuels. Over here some people think that, in a couple of years, when there is more GA-aircraft flying with diesel engines, the JetA1 will be taxed higher for GA-aircraft also, so that the gouvernement still gets her share of our money.

But for the time being, the fuel cost flying an RV9 with a diesel engine will be 1/3 to 1/4 the cost of flying it with an Avgas engine (in most parts of Europe!)

A modern diesel engine like the Centurion or the Wilksch is not "much heavier" than an Avgas engine, the extra couple of kg's way-up against the less fuelburn, so the mission weight on longer flights may even stay the same. Anyway, the RV9 is not aerobatic! In the worst case the useful load may go down a little bit, but with one of the highest useful loads on the market that is not a problem at all, I believe, especially not for Europe, because pilots and passengers tend to be lighter over here than in the USA (statistics).

The somewhat higher purchase price of the engine (maybe $ 5.000,- to $ 10.000,- against a basic Avgas engine) will be saved in a very short time on fuel cost, after that it is going to be a lot cheaper to fly as you can calculate yourselves. Also there will be less maintenance costs, because there is no need to change the sparkplugs. By the way, I do not understand what Cessna has got to do with this ?? We are talking about the RV9 here!

And of course there are a lot more benefits like: no carb icing, single leaver control, no shock cooling due to liquid cooling, high power output at altitude due to the turbo, etc.

But most important of all, if we want our children still to have a decent life on this planet, is that we have to try to use our resources as good as possible and to pollute the environment as little as possible. I am not saying that we have to quit flying, but that we have to try to reduce unnecessary fuel consumption and reduce unnecessary pollution wherever we can. With these modern engines we are at least doing that.

Regards, PilotTonny.


rv8pilot 11-23-2006 06:35 AM

Gentlemen

Forget about the thielert diesel!!!!!
I was pursuing it when I built my RV8,2001-2003 and they told me that they didnt care fore Experimentals I will line the facts up

1 price 35000$ without the special propeller which will cost you another 12000$=47000$

2 Here in Denmark there are 4 thielerts 3 off them down with Gearbox repair

3 Performance or should I say the lack off it,it will produce the same trust as the 320/360 ABOVE 12000 ft. how often do you fly above 12000 ft. At my airfield
we have a German Diamond coming for fuel,and my old Cessna 150 with a 100 hp continetal with outperform it any time(dont build a fun aeroplane and destroy it with a dull engine)

4 The cowling conversion will make an RV so ugly that you dont want to bother

5 My RV8 used 4400 ltr. of avgas on the first 200 hours which give a burn rate off 22 ltr an hour( 5gallon an hour)

My five cents??

jorn Moller
OY-RVS RV8
300 hours

Pilottonny 11-23-2006 02:30 PM

Think before you forget !
 
Jorn, you are correct, as I stated before on these forums, Thielert are not interested in the single experimental builder, they want to sell to Vans (in large numbers)!

Please do not compare the 135 bhp Centurion with the 160 bhp O-320 or even more powerfull O-360! If you compare apples to apples you will find that the Centurion is quite a performer, especially at altitude (you are saying it outperformes an O-360 at 12.000 ft, yourselves). I think that is not bad for a 135 bhp engine!?

Anyway, I have not heard of the issues with the gearbox before, if that is correct, they have a problem to solve!

If you are talking about looks, OK, there is no RV flying with a Centurion so we can only gues it is going to be more ugly than a standard RV, but... you could be right there.

4.400 lt. of Avgas will have cost you approx. EUR 8.800,- (in Belgium) against approx 3.750 lt. of Jet A1 (15% less fuel burn?) at approx. EUR 0,60/lt would have saved you approx. EUR 6.556,- (again, in Belgium) over these 200 hrs!. To me that is a lot of money and I gues it would not take much more hours, to save the extra money that you would have layed out for the more expensive Centurion. And from there on...... yes, you would save more than EUR 30,-/hr, every hour!!!
But, as we both know, Thielert will not sell to us, what a shame.
Regards, PilotTonny



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