Fun weekend buying an Arrow (long)

Mike Spera wrote:
One well known aviation university teaches you to "fly out on the tank
you flew in on".

I take off on "both." If either one works, I have gas.

George Patterson
There's plenty of room for all of God's creatures. Right next to the
mashed potatoes.

"George Patterson" wrote in message
news:beF7e.5519$4v3.1682@trndny03...
Mike Spera wrote:
One well known aviation university teaches you to "fly out on the tank
you flew in on".

I take off on "both." If either one works, I have gas.

George Patterson
There's plenty of room for all of God's creatures. Right next to the
mashed potatoes.

Some of us don't have that option.

George Patterson wrote:
Mike Spera wrote:
One well known aviation university teaches you to "fly out on the tank
you flew in on".

I take off on "both." If either one works, I have gas.


PA-32s and C-402s lack that ability, among many others. In fact, on the C-402
if you chose to take off on the aux tanks first, you just blew fuel overboard.
You had to create room in the mains for the fuel. The mains fed the engines.
The aux fed the mains. Therefore you take off on the mains and fly for an hour.
THEN you switch to the aux and fly for another 35 minutes or so, then switch
back to the mains for the rest of the flight.

Both? Must be talking about Cessna.



--
Mortimer Schnerd, RN

VE

Mortimer Schnerd, RN wrote:

Both? Must be talking about Cessna.

Maule.

George Patterson
There's plenty of room for all of God's creatures. Right next to the
mashed potatoes.

Mortimer Schnerd, RN wrote:

Both? Must be talking about Cessna.


Navions only has a "ON (both) - OFF" selector (unless they have optional
tanks).

Well, their point is that, by changing from the setting you flew in on,
you may introduce the possibility of failure. Namely, if you fly in on
the left tank and take off on both, the water in the right tank may ruin
your day. Also, if the fuel selector malfunctions, you may be between
settings and have "neither". I am not familiar with the specific designs
of these valves, so this may not be an issue. Anyway, many of us dont't
have a "both" setting. So, that introduces other possible failures like
the tank you switched to is empty.

Thanks for pointing out the "both" setting. As I said, some of us don't
have one.

As I said, opinions on this one vary greatly.

Good luck
Mike

Mike Spera wrote:

One well known aviation university teaches you to "fly out on the tank
you flew in on".


I take off on "both." If either one works, I have gas.



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"Mike Spera" wrote in message
...
Well, their point is that, by changing from the setting you flew in on,
you may introduce the possibility of failure. Namely, if you fly in on the
left tank and take off on both, the water in the right tank may ruin your
day.

True. But how often does an engine fail due to fuel exhaustion, versus fuel
contamination? Seems like procedure should take into account the most
common failure mode.

Also, consider that on most flights, you would have had a chance to use both
tanks. By the time of your second departure, you should know whether either
tank is contaminated.

A corallary to all of the above is that if the flight was too short to check
both tanks, it was probably also too short for a fuel shortage to be a
problem. So, one could rationally worry more about contamination after a
second departure following a very short flight.

Also, if the fuel selector malfunctions, you may be between settings and
have "neither".

Better for that to happen on the ground than in the air, right?

Pete

George Patterson wrote:
Mike Spera wrote:

One well known aviation university teaches you to "fly out on the tank
you flew in on".


I take off on "both." If either one works, I have gas.

Doesn't that also mean that if one of the tanks is contaminated, you're going to
draw the contamination into the engine, with no option of switching to a good
tank (or, at least, you don't know which tank to switch to).

Easy for you, George. The Archer doesn't have that position on the valve
:-(

--
Bob (Chief Pilot, White Knuckle Airways)


"George Patterson" wrote in message
news:beF7e.5519$4v3.1682@trndny03...
Mike Spera wrote:
One well known aviation university teaches you to "fly out on the tank
you flew in on".

I take off on "both." If either one works, I have gas.

George Patterson
There's plenty of room for all of God's creatures. Right next to the
mashed potatoes.