ORIGINAL: pe reivers
[link=http://home.wanadoo.nl/pereivers/regulated_fuelsupply/a_regulated_fuel_supply.html]This [/link]setup does about the same, at a fraction of the trouble you have to go to with the Webra system. Webra tries to, in a simplified way, reach the results of fully computer controlled lean burn modern automotive engines. I would call that a pipe dream. Nice to fill an idle evening with. It is not economical feasible to incorporate such a system in our model engines, unless a two servo system can be programmed into a pic-processor BY THE MANUFACTURER, and not by the end user. The engine then comes with a carb and two servos as one unit, not to be tampered with. (or equivalent system)
I am a bit sad, but also a bit amused about the reactions concerning my last post. I think, No, I am convinced, that theory (if proven it becomes law!) is the only one way to approach things. If something happens, there is a cause for it to happen. Knowing as much causes as possible opens up a spectrum of solving possibilities. Knowing less causes makes it easier to define one's point of view, but that need not be the right one. Now. 40-some years after that first knowledge clash, I have come to the understanding how little we are allowed to learn. Theory can be learnt in a very short time. Without it there would be no progress, because the little we are allowed to learn in a lifetime would not be sufficient to increase the level of thinking as laid down by our predecessors.
Hi Pe,
As you see everybody has his own view on the Theory/vs/Practice. I think both, your Dad and you were right, each on his own way.
He was using life experience, kind of Intuition, or call it an Intelligent Look-up-Table built in his brain and based on Products he has
seen. In fact he used the Calculations which some other engineers have made and produced those boilers. You proved that he did
the right thing to support your studies in a way or another, although the funny thing is that he took decision prior cashing on his own
investments for your education. I think it is the same for many of us. Also, we as parents do not quite allways behave in the way
we are expected by our children. And there is an EQUILIBRIUM point, when the Kid is turned into Midle Age person when there is
huge "Look-up-Table" in his brain and also that is based on advanced Education OR huge Experiemental practice. I will never
ever say that Engineer is more Valuable than Technician and the OTHER WAY ARROUND = BOTH of them ARE needed, one
with Mostly-Calculations the other One with Mostly-Look-up-Table. Then we come to the Nomination of a Person with Highly
Successful Educated Guesses which might be a nice mix of both. All is up to the age, interest as well the speed and the Way
of accumulating skils to solve something.
For example, loot at you nice Calculator for Propellers. I do not think that you will see many of us taking Laptop to the Airfield.
I am printing kind-of-Look-Table for my particular Engine and there the Calculations stop. Then for some friend arround with
different engine I will give some "smart" hint based on my "intuition" which is in fact Your Calculations Impact on my thinking.
So, there we are, I behave like your Dad did, although some smart kid on the Aifield will have Excel Data sheet running on his
Palm-top computer, I might be faster with my "look-up-table". In fact as we all know the Look-Up-Tables are the FASTEST
ways in many Computers to do some of theis functions, Who is Calculating for example math-functions on pocket calculator,
it will take forever and will "eat" the battery and the result is known already for some N x 100 years, for example no anyone
of us (maybe) would start to calculate how much is SIN(0.5) isn't it or better to ask how much is SIN(30deg).
Cheers,
Nick