The International Cessna^® 170 Association

I am within reach of approval of 175 wings on my 170, all I need are the electric fuel gauges. Are the Cessna ones any good, or are there better approved replacement gauges sold by _____?
Thanks!

I suspect that if you receive approval for 175 wings w/175 fuel system, you are stuck with Cessna 175 gauges per that approval process, which are as good as any others I know of available for that wing. Otherwise you are likely to add even more complexity to your field approval process.

Having said that...If I were to do that modification, My preference would be to have mechanical gauges installed just like the original 170, by welding mounts to the 175 tanks.

54170b wrote:I am within reach of approval of 175 wings on my 170, all I need are the electric fuel gauges. Are the Cessna ones any good, or are there better approved replacement gauges sold by _____?
Thanks!

I would install a fuel flow computer no matter what fuel gauges are used. The fuel flow computer will give precise indications of fuel used and fuel left in the tanks. It can also be used in leaning. The addition of GPS and the fuel flow computer are the two things that reduced in-flight anxiety more than anything else for me.

hilltop170 wrote:I would install a fuel flow computer no matter what fuel gauges are used. The fuel flow computer will give precise indications of fuel used and fuel left in the tanks. It can also be used in leaning. The addition of GPS and the fuel flow computer are the two things that reduced in-flight anxiety more than anything else for me.

Richard, I absolutely agree. I installed a fuel flow meter before my last trip to Alaska. On a long trip like that, where airports with fuel might be few and far between, it gives you accurate fuel status in a way that the gauges can't. It's also extremely important to measure the fuel in the tanks before flight, either by filling up or dipping the tanks with a dip stick or Fuel Hawk gauge, to verify that the meter is accurate (it won't be if there's been any operator error, or any loss of fuel while the airplane was sitting, etc.). And we still need good fuel gauges in the tanks for cross checking with the fuel flow meter, because the meter can't see fuel leaving the tanks by other routes than through the fuel line to the carburetor or while the meter was turned off.

For anybody interested, I will be using these
http://www.aircraftspruce.com/catalog/i ... umatso.php