Procedure for calculating weight and balance

Mxsmanic wrote:
TxSrv writes:

In all horizontal tailplane designs?

No, not in all designs.

Then you definitive statement about "how far you are from
each stop" was flat wrong. Good we cleared that up.

F--

"TxSrv" wrote in message
...
Mxsmanic wrote:
TxSrv writes:

In all horizontal tailplane designs?

No, not in all designs.

Then you definitive statement about "how far you are from each stop" was
flat wrong. Good we cleared that up.

F--

TxSrv.... now you see why no one pays attention to Mx

"Mxsmanic" wrote in message
...
BT writes:

Changing the trim setting does not change the set screws (Stop bolts)
that
limit the amount of Rudder, Aileron or Elevator travel.

But it does control how far you are from each stop.

only in your own mind

how far from each stop when?

In article ,
"Morgans" wrote:

"Orval Fairbairn" wrote

The POH will list the arms for each seat, fuel, oil, baggage, etc.

Are you sure you want to be answering this putz? I beg of you; reconsider.

He sounds like a precocious 12-year-old, so I can cut him some slack. He
DOES ask some pertinent questions, like this one.

An ATP friend of mine almost had W&B taught him the HARD way a couple of
years ago. We calculated his CG to be about 6 inches aft of allowable,
after he had a near incident.

I showed him how to set up a general program and opened his eyes. He
became a very strong advocate after that.

"Orval Fairbairn" wrote

He sounds like a precocious 12-year-old, so I can cut him some slack.

Sorry to hear that. You have been drawn in by the fact that some of his
questions are reasonable, while his reactions are entirely unreasonable.

Let someone else ask reasonable questions. His presence here is only
detrimental.
--
Jim in NC

TxSrv wrote:

Then you may have read my plane's POH, but certainly have
never flown one. Else you'd know how trim works and why
there's no "default position."

Okay, now that I've made the mistake of reading this discussion, you've got
me curious: How does your plane's trim work? It's obviously not a trim tab.
And how can there be no neutral/default position of the elevator or the
trim device?

Anno v. Heimburg writes:

Okay, now that I've made the mistake of reading this discussion, you've got
me curious: How does your plane's trim work? It's obviously not a trim tab.
And how can there be no neutral/default position of the elevator or the
trim device?

The neutral position of a trim tab is the position in which it does
not intefere with the flow of air over the control surface, and thus
does not deflect the control surface in either direction.

There is no default position of a trim tab, as it is set as
appropriate for circumstances, which vary widely. In my use of the
term, I was thinking of trim positions that compensate for specific
power and pitch configurations and the like, excluding those that
compensate solely for a poorly balanced payload or fuel load.

In other words, I make a distinction between trim used to maintain the
aircraft in a specific, normal flight configuration, and trim used to
keep the nose from pitching violently upward because there's so much
junk loaded in the back of the aircraft (or violently forward because
the pilot and copilot are heavy and there's no ballast behind them).

As I understand it, the manufacturer's CG envelope is designed to
ensure adequate remaining control authority for any CG within the
envelope. I'm not sure how they determine what is adequate, however,
so I still worry. Which is why I'd like the most neutral CG possible,
that is, the one that has the least tendency to induce pitch or roll
movements.

--
Transpose mxsmanic and gmail to reach me by e-mail.

Mxsmanic,

Relative to its default position.


There is one?

--
Thomas Borchert (EDDH)

Anno,

And how can there be no neutral/default position of the elevator or the
trim device?


Ok, you got me curious. No default position in all Cessnas I have flown.
Not in the Bo. Nor in the Tobago. Not in the Cirrus nor the DA-40 or the
-20. Nor any other plane I can remember INCLUDING the big airliners in
MSFS. WTF are you talking about?

There's a marking for take-off, alright. But that'S not what we're
talking about.

--
Thomas Borchert (EDDH)

Mxsmanic,

I did, but neither is clearly superior to the other, so why not just
stay neutral?


Ok, make up your mind. DId you ask the question about W&B to learn or
to be obnoxious again? If the former, accept the fact that your idea of
"neutral trim" is bogus and stupid, STFU and take notes from the people
here that know. If the latter, well, take a hike.

--
Thomas Borchert (EDDH)