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Ok things are even more complicated as I just noticed that the plane power regulator has internal over voltage protection and so the over voltage protection on the a/c must now be bypassed.

I get ...

>> "why the heck didn't I overshoot if I was going to land half way
down the runway?"

Probably useful to note that in American English, overshoot means to run
off the end of the ...

>> That 'relay' was in fact a little two-transistor, plus jelly-beans
dc voltage level sensor. I rememberit well.

I think this may have predated you... I found it on my buddy's '59
V-tai ...

>> The Wye center point is just like the neutral in your house wiring... it should always be close to ground potential except when something bad happens.

...

The Lycoming IO360A parts catalog shows a vacuum pump adapter, and associated gears, that allows TWO vacuum pumps to be attached To the back of the engine, for non D mag engines.

Anyone ever seen o ...

On 6/5/2011 12:00 AM, RV-List Digest Server wrote:
We have toyed with the idea of swapping out this oversized oil cooler for a
Niagara unit

Positech used to have a great set of test data on t ...

I've got the Ford-style regulator that Cessna and others used for many
years. The four Faston-style connectors enter through a common plug
body, and are retained in that body by a small clip on t ...

I have 10:1 pistons, so I choose to run ROP and pay a little extra in
fuel for the cooling (just one technique)

Of course, that 50 ROP cylinder is running at the highest intracylinder
pressure ...

I solved this by installing a spring in the stack... so that the spring
keeps the washer tight against the sensor body, and makes up for
differences in pipe thread make-up.

Paul

On 12/9/2010 ...

>> how does one get lineboys trained that the engine exhaust pipe is a
terrible place for ground wire

Remember, it's not at all important to GROUND an aircraft for fueling.
What *is* impo ...

>> I assume that the military and airlines use the pin for the same thing.

In the 70's, Cessna used that small third pin, hotted up by the external
power source, to both close the ground po ...

>> Dead, weak or otherwise 'different' cells are just that, no matter where in the series of cells they occur, and the charging system couldn't care less.

The difference, Ron, is that we're ...

>> As a battery gets old its internal resistance increases.
The bad battery is just going to get warm when you apply the 28 volt across both batteries. It will drop the voltage as an I*R loss. ...

>> We finally found a battery equalizer from MCI and it solved the problem.

Not sure what an MCI bus is, Jim, but thanks for the data point and the point out of the equalizer site. Looks li ...

>> fraught with many potholes in the physics of implementation

Bob,
I see Jim's note about the failure of a series battery loaded at the center tap. What are the physics that allow the ser ...

Hi Bob,

I enjoyed reading your recent discussion of paralleling batteries.

Instead, I'm wondering about converting one of my two alternators to 24
volt (28 volt, whatever nominal voltage you p ...

Airmarc is Aviation Marine Radio Corporation.

Not sure what the 108 is, but you can buy a manual for it!

Paul

http://www.esscoaircraft.com/Airmarc_Models_128_Manual_p/411.htm

I can't see how a stiffer spring for the flow divider would help when
you WANT the engine to run... that should help prevent the engine from
dieseling after hot shutoff.

That said, I don't know ...

Hi Jim, thanks for your comments.

>> something similar is being done by Lancair (or the commercial variant, Columbia) with their electrically heated de-ice system. They run an alternator at v ...

Hi Bob!

Indeed, it's the same me. Smile

I wasn't aware of that functionality of the SR-1 regulator... do folks operate 14 V alternators in 28 volt systems simply because 14 V alternators are less e ...