When do you use boost pumps?

[Mxsmanic]

When do you use boost pumps on small GA aircraft?

[Bob F.[_2_]]

When the POH tells you.

--
Regards, BobF.
"Mxsmanic" > wrote in message
...
> When do you use boost pumps on small GA aircraft?

[Robert M. Gary]

On May 9, 3:41*pm, Mxsmanic > wrote:
> When do you use boost pumps on small GA aircraft?

After a long flight when you're just getting really tired.

-Robert

[Robert M. Gary]

On May 9, 3:41*pm, Mxsmanic > wrote:
> When do you use boost pumps on small GA aircraft?

BTW: You know how to fly a 747 but you don't know how to use the boost
pump?

-Robert

[Ron Natalie]

Mxsmanic wrote:
> When do you use boost pumps on small GA aircraft?

I know you wear your 6" pumps when you're out trolling
for tricks on the champs elysee.

[Bertie the Bunyip[_24_]]

"Robert M. Gary" > wrote in news:8212d5a7-22b3-4ead-96aa-
:

> On May 9, 3:41*pm, Mxsmanic > wrote:
>> When do you use boost pumps on small GA aircraft?
>
> BTW: You know how to fly a 747 but you don't know how to use the boost
> pump?
>

Different than on a light plane anyway.


Bertie

[Mxsmanic]

Robert M. Gary writes:

> BTW: You know how to fly a 747 but you don't know how to use the boost
> pump?

I don't have a complete POH for some of my GA add-ons.

[Benjamin Dover]

Mxsmanic > wrote in
:

> When do you use boost pumps on small GA aircraft?

Whenever you need to get up from your seat.

[Dave Doe]

In article >,
says...
> When do you use boost pumps on small GA aircraft?

Need to specify the aircraft.

--
Duncan

[Dave Doe]

In article >,
says...
> When do you use boost pumps on small GA aircraft?

for eg. a Traumahawk (IIRC) is during landing and takeoff, and
emergency, ie FLWOP procedure).

--
Duncan

[Capt. Geoffrey Thorpe]

"Dave Doe" > wrote in message
z...
> In article >,
> says...
>> When do you use boost pumps on small GA aircraft?
>
> Need to specify the aircraft.
>

It's an Intel Celeron...

--
Geoff
The Sea Hawk at Wow Way d0t Com
remove spaces and make the obvious substitutions to reply by mail
When immigration is outlawed, only outlaws will immigrate.

[Aluckyguess]

When Viagra quits working

[BT]

when the POH or Check list says too
BT

"Mxsmanic" > wrote in message
...
> When do you use boost pumps on small GA aircraft?

[Maxwell[_2_]]

"Bertie the Bunyip" > wrote in message
...
> "Robert M. Gary" > wrote in news:8212d5a7-22b3-4ead-96aa-
> :
>
>> On May 9, 3:41 pm, Mxsmanic > wrote:
>>> When do you use boost pumps on small GA aircraft?
>>
>> BTW: You know how to fly a 747 but you don't know how to use the boost
>> pump?
>>
>
> Different than on a light plane anyway.
>
>
> Bertie

Yeah, dumb ass, that's real relevant.

[Bertie the Bunyip[_25_]]

"Maxwell" <luv2^fly99@cox.^net> wrote in
:

>
> "Bertie the Bunyip" > wrote in message
> ...
>> "Robert M. Gary" > wrote in
>> news:8212d5a7-22b3-4ead-96aa-
>> :
>>
>>> On May 9, 3:41 pm, Mxsmanic > wrote:
>>>> When do you use boost pumps on small GA aircraft?
>>>
>>> BTW: You know how to fly a 747 but you don't know how to use the
>>> boost pump?
>>>
>>
>> Different than on a light plane anyway.
>>
>>
>> Bertie
>
> Yeah, dumb ass, that's real relevant.
>
>
>
>

You're back! I was worried.


Bertie

[Darkwing]

"Mxsmanic" > wrote in message
...
> When do you use boost pumps on small GA aircraft?

I'll tell you for only $19.95, if you act now!

[Bertie the Bunyip[_24_]]

"Darkwing" <theducksmail"AT"yahoo.com> wrote in
:

>
> "Mxsmanic" > wrote in message
> ...
>> When do you use boost pumps on small GA aircraft?
>
> I'll tell you for only $19.95, if you act now!
>
>
>

I'll tell him for only 14.95, and I'll throw a set of steak knives at him!
er, in!


Bertie

[Maxwell[_2_]]

"Bertie the Bunyip" > wrote in message
.. .

You couldn't stop if your life depended on it, could you Squirty ****drip?


Squirt, squirt.

[Bertie the Bunyip[_25_]]

"Maxwell" <luv2^fly99@cox.^net> wrote in
:

>
> "Bertie the Bunyip" > wrote in message
> .. .
>
> You couldn't stop if your life depended on it, could you Squirty
> ****drip?
>
>
> Squirt, squirt.
>
>
>

You betcha..


Bertie

[Robert M. Gary]

On May 9, 4:21*pm, Bertie the Bunyip > wrote:
> "Robert M. Gary" > wrote in news:8212d5a7-22b3-4ead-96aa-
> :

> Different than on a light plane anyway.
>
> Bertie

Ah, so he probably can fly a 747?

[Bertie the Bunyip[_24_]]

"Robert M. Gary" > wrote in
:

> On May 9, 4:21*pm, Bertie the Bunyip > wrote:
>> "Robert M. Gary" > wrote in
>> news:8212d5a7-22b3-4ead-96aa-
>
>> :
>
>> Different than on a light plane anyway.
>>
>> Bertie
>
> Ah, so he probably can fly a 747?
>

If by that you mean he can put it on his back and flap his arms to get
it airborne, he'd have as good a chance as anyone.


Bertie

[Angelo Campanella]

Mxsmanic wrote:
> When do you use boost pumps on small GA aircraft?

The purpose of a fuel boost pump is to assure adequate fuel flow in all
flight conditions, especially in a nose high attitude when the tanks are
nearly empty; where the height difference between the fuel level and the
engine pump is considerable. Another vulnerability is on hot days when
vapor lock in hot spots nearer the engine is possible. It probably is
discovered by the test pilot in the ceritifcation process that fuel
starvation occurred in some situations. Thereafter, the manufacturer of
that aircraft is obliged to install one in the aircraft, likely in a low
and cold spot such as under the cabin, then certify that it solves these
problems, then tell in the flight manual how and when to apply it.

The pilot is obliged to comply. The most applicable condition is that
it should be used on every takeoff until flight climb is stabilized....

Angelo campanella

[[email protected]]

On May 12, 7:28 am, Angelo Campanella > wrote:
> Mxsmanic wrote:
> > When do you use boost pumps on small GA aircraft?
>
> The purpose of a fuel boost pump is to assure adequate fuel flow in all
> flight conditions, especially in a nose high attitude when the tanks are
> nearly empty; where the height difference between the fuel level and the
> engine pump is considerable. Another vulnerability is on hot days when
> vapor lock in hot spots nearer the engine is possible. It probably is
> discovered by the test pilot in the ceritifcation process that fuel
> starvation occurred in some situations. Thereafter, the manufacturer of
> that aircraft is obliged to install one in the aircraft, likely in a low
> and cold spot such as under the cabin, then certify that it solves these
> problems, then tell in the flight manual how and when to apply it.
>
> The pilot is obliged to comply. The most applicable condition is that
> it should be used on every takeoff until flight climb is stabilized....
>
> Angelo campanella

Boost pumps are often used even on high-wing airplanes if the
engine also has a mechanical fuel pump. Some systems don't have enough
flow capacity via gravity alone and need the pump, and any pump needs
a backup. Low-wing airplanes having fuel in the wings need a pump, of
course, to lift the fuel, and that's where vapor-lock becomes a
hazard, when the fuel is being pulled from the engine end of the
system. A good boost pump system there has the boost in the tank
itself, so the fuel is pushed all the way. Pressure on the fuel raises
its boiling point and vapor lock disappears.

Dan

[Mxsmanic]

Angelo Campanella writes:

> The purpose of a fuel boost pump is to assure adequate fuel flow in all
> flight conditions, especially in a nose high attitude when the tanks are
> nearly empty; where the height difference between the fuel level and the
> engine pump is considerable. Another vulnerability is on hot days when
> vapor lock in hot spots nearer the engine is possible. It probably is
> discovered by the test pilot in the ceritifcation process that fuel
> starvation occurred in some situations. Thereafter, the manufacturer of
> that aircraft is obliged to install one in the aircraft, likely in a low
> and cold spot such as under the cabin, then certify that it solves these
> problems, then tell in the flight manual how and when to apply it.
>
> The pilot is obliged to comply. The most applicable condition is that
> it should be used on every takeoff until flight climb is stabilized....

OK, thanks. Given the advantages that you cite, why wouldn't one leave the
boost pump on all the time?

[[email protected]]

On May 12, 9:12 am, Mxsmanic > wrote:

> OK, thanks. Given the advantages that you cite, why wouldn't one leave the
> boost pump on all the time?

Because it will wear out for no good reason and maybe not work
when you need it. If you have altitude and the engine-driven pump
fails, you cant turn on the boost without losing much altitude. Most
boost pumps are electric, either motor driven or some sort of solenoid-
piston arrangement. The motor has brushes and bearings that wear out
much faster than a mechanical engine-driven pump, and the solenoid
affair has a switch that burns out. There are some electronically-
driven pulsation pumps, but they, too, suffer from heat and wear.
The boost need only be on if the main pump fails, or if you are
taking off or landing where a loss of power, even for a few seconds,
would be disastrous.

Dan

[Mxsmanic]

writes:

> Because it will wear out for no good reason and maybe not work
> when you need it. If you have altitude and the engine-driven pump
> fails, you cant turn on the boost without losing much altitude. Most
> boost pumps are electric, either motor driven or some sort of solenoid-
> piston arrangement. The motor has brushes and bearings that wear out
> much faster than a mechanical engine-driven pump, and the solenoid
> affair has a switch that burns out. There are some electronically-
> driven pulsation pumps, but they, too, suffer from heat and wear.
> The boost need only be on if the main pump fails, or if you are
> taking off or landing where a loss of power, even for a few seconds,
> would be disastrous.

OK, so as a general rule, I could say, use it if the engine pump fails or
whenever an even momentary loss of fuel flow would be dangerous (takeoff,
landing, any type of flight in which a loss of power would be an immediate
problem).

[BT]

don't use the boost pump.. except for when the POH states..
some aircraft, the electric boost pump is not really to "boost" pressure,
but to provide service if the mechanical pump fails
some designs are such that the combination of electric pump and mechanical
pump is too much and the engine runs in an over rich condition and can
stumble when you need power the most
B

"Mxsmanic" > wrote in message
...
> writes:
>
>> Because it will wear out for no good reason and maybe not work
>> when you need it. If you have altitude and the engine-driven pump
>> fails, you cant turn on the boost without losing much altitude. Most
>> boost pumps are electric, either motor driven or some sort of solenoid-
>> piston arrangement. The motor has brushes and bearings that wear out
>> much faster than a mechanical engine-driven pump, and the solenoid
>> affair has a switch that burns out. There are some electronically-
>> driven pulsation pumps, but they, too, suffer from heat and wear.
>> The boost need only be on if the main pump fails, or if you are
>> taking off or landing where a loss of power, even for a few seconds,
>> would be disastrous.
>
> OK, so as a general rule, I could say, use it if the engine pump fails or
> whenever an even momentary loss of fuel flow would be dangerous (takeoff,
> landing, any type of flight in which a loss of power would be an immediate
> problem).

[Maxwell[_2_]]

> wrote in message
...
> On May 12, 9:12 am, Mxsmanic > wrote:
>
>> OK, thanks. Given the advantages that you cite, why wouldn't one leave
>> the
>> boost pump on all the time?
>
> Because it will wear out for no good reason and maybe not work
> when you need it. If you have altitude and the engine-driven pump
> fails, you cant turn on the boost without losing much altitude. Most
> boost pumps are electric, either motor driven or some sort of solenoid-
> piston arrangement. The motor has brushes and bearings that wear out
> much faster than a mechanical engine-driven pump, and the solenoid
> affair has a switch that burns out. There are some electronically-
> driven pulsation pumps, but they, too, suffer from heat and wear.
> The boost need only be on if the main pump fails, or if you are
> taking off or landing where a loss of power, even for a few seconds,
> would be disastrous.
>
> Dan

You're feeding a troll.

[Bertie the Bunyip[_25_]]

"Maxwell" <luv2^fly99@cox.^net> wrote in
:

>
> > wrote in message
> news:213d884c-ad6d-4e57-bc15-46e4c76b8ae8
@w5g2000prd.googlegroups.com..
> .
>> On May 12, 9:12 am, Mxsmanic > wrote:
>>
>>> OK, thanks. Given the advantages that you cite, why wouldn't one
>>> leave the
>>> boost pump on all the time?
>>
>> Because it will wear out for no good reason and maybe not work
>> when you need it. If you have altitude and the engine-driven pump
>> fails, you cant turn on the boost without losing much altitude. Most
>> boost pumps are electric, either motor driven or some sort of
>> solenoid- piston arrangement. The motor has brushes and bearings that
>> wear out much faster than a mechanical engine-driven pump, and the
>> solenoid affair has a switch that burns out. There are some
>> electronically- driven pulsation pumps, but they, too, suffer from
>> heat and wear. The boost need only be on if the main pump fails, or
>> if you are taking off or landing where a loss of power, even for a
>> few seconds, would be disastrous.
>>
>> Dan
>
> You're feeding a troll.
>
>
>
>

No, actually, you are, fjukktard.


But since you're a k00k, you'll neve see it!

God I love k00ks.