A cool new way to see your actual fuel flow has been on the
market now for at least a year and I got to try it out a few months
ago. Here are my observations.
The Tiggy Fuel Monitor gives the pilot a direct read of the fuel
actually flowing to his motor. It is, to my knowledge, the only
device that provides this capability. It gives pilots a unique tool
to assess how they're motor is performing from an efficiency
I attached it to my Black Devil powered machine to see what it
actually was. Sadly I didn't record the numbers in flight but it
will be telling to compare different motors on the same wing.
The unit arrived in a really nice box with clear, simple
instructions on how to set it up which was easy to do. The button
could be easier to push. Installation is brain dead simple although
the parts aren't particularly well suited to round-tube frames. In
my case I want to move it quickly from one machine to another so I
used gaffers tape which is strong yet doesn't usually leave a
residue. Put this inline with your fuel line but mind the mounting
orientation. Fuel line from the tank must be connected to the
appropriate nipple and the flow transducer must be level.
Make sure to strain relief the wires, they terminate with just
wires going into their plugs.
Weight is only about 9 ounces.
It runs on a 9v battery but accepts voltage all the way up to 28
so could be powered by most on-board electrical sources. Given the
small power consumption I wouldn't bother. Just don't forget to turn
it off with the switch on its 9v case.
You can also use it for telling fuel level by setting the fuel
level before takeoff and it will count down how much is left. This
should be secondary since it would be easy to enter the wrong
starting fuel amount and, if you were to have a leak BEFORE the
Tiggy, it would not register the fuel loss.
The readout was easy to see in flight and was very discriminating
-- responding to even small changes in RPM. There is a slight delay
on the flow, maybe 5 seconds, so for testing
It was quite cool being able to see the actual fuel flow and
hopefully I'll be able to incorporate this into some other motor
tests when the opportunity arises. For more information or to
www.paramotorflyer.com. Here are the
directions for the device I tested.