Kay From France, joined Mar 2002, 1884 posts, RR: 3 Posted (1 year 1 month 5 days 14 hours ago) and read 1415 times:
My club's PA 28 has a fuel pump switch that, from the off position, goes up to pump 1 or down to pump 2, instructors mention that there are two electric pumps and pilots are encouraged to use both alternatively.
I downloaded the POH and technical docs to confirm that the PA28 180 Archer II really has three pumps, but there is never a mention of the second electric pump on the diagrams.
Northwest727 From United States of America, joined Jul 2005, 491 posts, RR: 1 Reply 1, posted (1 year 1 month 5 days 14 hours ago) and read 1409 times:
The PA28-181 (and most PA28 series, as far as I know; I've flown the -140, -161, -181, -R-200, and R-201) have one engine driven pump and one electrically-driven backup pump.
I think your club's PA28-181 has an aftermarket addition of a second electric pump.
DiamondFlyer From United States of America, joined Oct 2008, 1294 posts, RR: 3 Reply 3, posted (1 year 1 month 2 days 12 hours ago) and read 1173 times:
Quoting Kay (Reply 2): wonder what would make them think three pumps (2 electric + 1 engine driven) are needed when the whole universe has two.
I seem to recall that here in the states there is an STC for the PA-28 that allows for use of automotive fuel, and I believe the STC required an additional fuel pump.
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From France, joined Mar 2002, 1884 posts, 
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