HIWAS being phased out

HIWAS – the hazardous in-flight WX service recordings available on VORs marked with a little inverted H on the sectional – is being phased out by the end of September 2019.

In light of the much richer and more effective WX updates availble with ADS-B In it makes a lot of sense to reallocate the resources necessary to maintain a legacy system fewer and pilots used (if they ever did).

Make use of the ADS-B In WX info streamed via Bluetooth to your EFB in both 3WF and 9ES (WX info is also available in 3WF directly on the GTNs, but not not 9ES’s G1000).

C172S Tachometer: Normal operating limit

This is a reminder that the normal engine speed operating limit (top of green arc, representing ~75% BHP) changes with altitude.

See also POH:

  • Section 4: ENROUTE CLIMB and CRUISE
  • Section 5: CRUISE PERFORMANCE / RANGE / ENDURANCE
For standard-day conditions, the top of the normal operating range is
2,500 RPM between sea level and 5,000′
2,600 RPM from 5,000′ – 10,000′
2,700 RPM above 10,000′

Soft-field operations

You may have seen AOPA’s Passport Challenge, handing out prizes for landing at grass strips – this is a gentle reminder of GFT’s Renter/Student Ops Manual regulation 5.6E, which states “Operations into any field other than paved surfaces (soft, gravel, sand, grass, etc) are prohibited unless prior approval is obtained from the Director of Operations, Chief or Assistant Chief Flight Instructor.

Thank you for helping keep our planes in the condition you wish to find them yourself!

Keyless starter in 3WF

Our Cessna now sports a keyless magneto / starter panel:

This ignition switch replaces the outdated rotary key-switch.
By making this change, a couple of things get accomplished:

  • The problem of faulty contacts inside of the key-switch which can cause a hot mag situation is eliminated
  • Operation of the magnetos is returned back to the traditional way aircraft engines are supposed to be operated – starting will be as simple as pushing a button; no more fumbling for the keys
    • Just make sure you have the keys with you in the cockpit after pre-flight so that they’re not inside any of the door locks as you taxi out for a flight.

To start the engine, instead of turning the key you

  1. Turn on both magneto switches
    Please note that the starter will actually work even if the mag switches are off, but the engine won’t fire so that’s just a waste of battery life.
  2. Push the red START button to engage the starter and hold it as long as you would hold the key in the Start position.

During runup, you simply turn off the left mag and run the engine only on the right mag for a few seconds to check on the RPM drop, turn left back on and do the same with the right mag.

When you shut down the engine, instead of turning the key to the left and removing it you need to turn off the two mag switches (don’t press the red START button).

The mag switches should never be left ON before or after flight because in that state moving the prop by hand could actually start the engine, even if the master is off. The MAGS OFF sign provided by Galvin should be displayed in the window when the aircraft is parked and the mags are indeed verified off.

An AFM supplement has been placed in the plane (see plastic box in baggage compartment) and can also be consulted online if there are any questions.

Down the road the magneto-only ignition system may be upgraded to an electronic one (EIS) with basically the same switch panel, but that’s not decided yet.