what every boy needs - yeah seriously

veedubber and others
the venerable old VW engine conversion is quite usable.

if you were to take all the lessons learnt from all the engine
building done so far and apply them to a new engine design, what would
the new engine design look like?

I think the flat 4 makes a very serviceable aircraft engine.
underslung pushrods like the O-200 and VW would remain.
I'd use hydraulic lifters.
the castings for the crankcase would be simpler, more like the O-200
than the complexities of the VW casing.
the crankshaft would be a little more robust at the front end
I'd fin the pushrod tubes and use the oil returning to the crankcase
as a radiator.
the engine would be mounted on dynafocal lord mounts.
I'd use electron for the crankcasings.
spin on oil filter. (z79)
magnet in the sumpplug.

what else???

Stealth Pilot

"Stealth Pilot" schrieb im Newsbeitrag
...
veedubber and others
the venerable old VW engine conversion is quite usable.

if you were to take all the lessons learnt from all the engine
building done so far and apply them to a new engine design, what would
the new engine design look like?

would look like this one: http://www.ulpower.com/

All of that is out there, already available. But the truth is, it's
not needed; not in the immediate sense.

What IS needed are aluminum head-castings having twice as much fin-
area as what's presently available. This won't fit on a bug or bus so
there is no start-up money. Coming up with the cores should have been
done by the EAA -- about fifty years ago. The fact it wasn't is good
evidence that it won't.

The need for juice lifters is appreciated -- and they are already
available, if you start with a late-model Mexican crankcase (it uses
the Type IV hydraulic lifters). But you can reduce your valve
adjustments to once every fifty hours or so by tossing the stock
adjuster screw and replacing them with the swivel-foot type. Flat-to-
flat, the valve adjustment wears at a glacial rate, assuming the valve-
train geometry has been set up properly, which it isn't in nine
engines out of ten.

But the VW simply lacks the Good Stuff that is found in a REAL
aircraft engine, such as 8x the bearing area, and a flanged crankshaft
carried in a massive Final Bearing similar in size to that on the
A65.

Modern ignition systems are actually superior to the typical backwards
Slick, and there is no evidence supporting a need for dual ignition,
other than the Feel Good legislation passed in 1937 imposed upon us
after some Legislator's son augered in the E2 of the college flying
club. College. Rich kid(s). Our tax money to teach them to fly.
Until a Representative from Illinois wanted to know what the hell was
going on? Why only those particular colleges? And nothing for female
college students nor, heaven forbid, BLACK college students.(*) So
everyone jumped in and hung their favorite line-item onto the
legislation and THAT's how we ended up with a mandate to provide TWO
ignition systems rather than one. But most folks aren't bright enough
to figure it out. These are the same technical idiots who think
adulterating gasoline with subsidized alcohol fer crysakes is a GOOD
idea when it's roughly akin to shooting yourself in the foot while
practicing your Fast Draw in front of the mirror.

So we end up with the only organization that claims to speak for the
grass-roots aviators doesn't, and the only government agency that
claims to speak for aviation in general, won't. Because it is so
highly politicized that we're as likely to be ordered to put a
flashing red light on the nose of our airplanes during the Christmas
season, as to have them do anything that truly fosters 'General'
aviation... so long as the General happens to be driving a jet or
turbo-prop.

The point of all that is that it really doesn't have a lot to do with
powerplants. Nor even with airplanes. What it has to do with is
Money and Politics and the desperate urge to fix things that aren't
broke.

Want some examples of this & that? Tear down an aircraft engine,
compare it's rod bearing area to that of the Volkswagen. Indeed, tear
down a MODEL T and do the same! To sling a prop, hour after hour and
year after year, we need something we ain't got. But leave it up to
the 'experts' and we'll be forced to fly behind a 1300cc power-head
running six grand into a PSRU that costs about that and has a TBO that
doesn't match the power head.

In fact, if our lives are going to depend upon a gear-box from Lapland
we might as well push for a ceramic turbine as the hot-section... and
use the same basic engine for everything from 50hp to 200hp.

But we won't.

We'll be stuck with whatever us we'ens can throw together because when
push comes to shove, there aren't enough of us to even influence the
plowing under of some of our most cherished air fields. And while a
certain well-funded few will assemble their RV's and do everything By
the Book, a significantly larger number of dyed in the wool American's
will notice that there aren't any traffic cops in the sky and that, as
much as various agencies wish otherwise, there's nothing than your
personal integrity to prevent you from building yourself a flying
machine and using it as such, tens of hours each month and hundreds of
hours each year, without any numbers of any kind -- without those
LUXURY taxes the bean-counters insist on charging you. But of course,
that will divorce you from the SOCIAL aspects of General Aviation and
that right there will be enough to protect all those Americans who
fear having something fall upon their heads unless it is first blessed
by some bureaucracy. THEN it's okay for it to fall down upon their
heads.

---------------------------------------------------------

It's not just the engine, although if we're talking about powered
flight it doesn't take a Rocket Scientist to see that the engine(s)
has a lot to do with it. Nor is it about the Politicians, although
anyone bright enough to pour **** out of a boot realizes we have the
best government money can buy. And it's not about the bureaucrats
either, since they are largely concerned with events AFTER they
happen. Which leaves the only group that has anything to do with the
issue, which is guys like you & me. In my case the fact I live well
below the 'official' poverty line renders me invisible. Which means I
can build and fly as much as I want to, without having any effect at
all upon the Important Decisions which shape the future of American
aviation (and Australian too, when you get down to it).

-R.S.Hoover

On Thu, 8 Jan 2009 11:34:36 -0800 (PST), "
wrote:


issue, which is guys like you & me. In my case the fact I live well
below the 'official' poverty line renders me invisible. Which means I
can build and fly as much as I want to, without having any effect at
all upon the Important Decisions which shape the future of American
aviation (and Australian too, when you get down to it).

-R.S.Hoover

this will be no consolation but I've just thrown in a job that
returned me somewhere between $80,000 and $100,000 per year to move
below the poverty line.
I've become my wife's carer as her psyche problems worsen.

so I will be *making* my next aircraft. the turbulent will have all
manner of bits cast and machined by me.

as a model engineer I'd like to make an accurate altimeter, an
accurate air speed indicator....

y'know this *is* fun.

Stealth Pilot

"Stealth Pilot" wrote in message
...

| this will be no consolation but I've just thrown in a job that
| returned me somewhere between $80,000 and $100,000 per year to move
| below the poverty line.
| I've become my wife's carer as her psyche problems worsen.
|
| so I will be *making* my next aircraft. the turbulent will have all
| manner of bits cast and machined by me.
|

Do you have any photos of some of your projects?

On Sat, 10 Jan 2009 11:29:25 -0600, "Maxwell" #$$9#@%%%.^^^ wrote:


"Stealth Pilot" wrote in message
.. .

| this will be no consolation but I've just thrown in a job that
| returned me somewhere between $80,000 and $100,000 per year to move
| below the poverty line.
| I've become my wife's carer as her psyche problems worsen.
|
| so I will be *making* my next aircraft. the turbulent will have all
| manner of bits cast and machined by me.
|

Do you have any photos of some of your projects?


considering the reaction I got from the last photo I sent you
.....bugger off.

"Stealth Pilot" wrote in message
news
On Sat, 10 Jan 2009 11:29:25 -0600, "Maxwell" #$$9#@%%%.^^^ wrote:


"Stealth Pilot" wrote in message
. ..

| this will be no consolation but I've just thrown in a job that
| returned me somewhere between $80,000 and $100,000 per year to move
| below the poverty line.
| I've become my wife's carer as her psyche problems worsen.
|
| so I will be *making* my next aircraft. the turbulent will have all
| manner of bits cast and machined by me.
|

Do you have any photos of some of your projects?


considering the reaction I got from the last photo I sent you
....bugger off.

I didn't think you would.

On Jan 8, 2:34*pm, " wrote:
All of that is out there, already available. *But the truth is, it's
not needed; not in the immediate sense.

What IS needed are aluminum head-castings having twice as much fin-
area as what's presently available. *This won't fit on a bug or bus so
there is no start-up money. *Coming up with the cores should have been
done by the EAA -- about fifty years ago. *The fact it wasn't *is good
evidence that it won't.

Bob...don't Jabiru use heads machined from billet stock?

"cavedweller" wrote in message
...
On Jan 8, 2:34 pm, " wrote:
All of that is out there, already available. But the truth is, it's
not needed; not in the immediate sense.

What IS needed are aluminum head-castings having twice as much fin-
area as what's presently available. This won't fit on a bug or bus so
there is no start-up money. Coming up with the cores should have been
done by the EAA -- about fifty years ago. The fact it wasn't is good
evidence that it won't.

Bob...don't Jabiru use heads machined from billet stock?

That was my recollection as well, although I can no longer find it on the
web.

Peter

Bob...don't Jabiru use heads machined from billet stock?
-------------------------------------------------------------------------------------------

I don't know. But judging from their appearance that seems to be the
case.

-Bob