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Alchemy · June 11th, 2004, 21:54

Congrats.

Regardint the ILS, I've seen it taught both ways.

I've always done ILS approaches as fast as possible in the skyhawk, usually around 115 KIAS (just about cruise power). This is done to accomodate faster jet traffic at the airports we typically shoot ILS's into. Ideally, you do want to configure the airplane with 10 degrees of flaps and slow to 90 KIAS in the C172 within half a dot of glideslope intercept, but with a 10 knot headwind, this will give you a groundspeed of 80 knots. You will not be on the controller's good side.

It's pretty rare for me to be cleared for an ILS in a C172 without being told "keep your speed up". Most airports with an ILS have 5000ft+ runways, and it's not a problem stopping the skyhawk within 75% of that distance, even going 115 over the middle marker at DH. However, if you were in a situation where you had a short runway with an ILS (do they make those?), you would definitely want to configure the airplane before glideslope intercept and ride 'er down at 90.

June 11th, 2004, 21:54	#5
Alchemy Old Skool Join Date: Aug 2001 Location: Austin, TX, USA Posts: 1,849	Re: Instrument ride passed Congrats. Regardint the ILS, I've seen it taught both ways. I've always done ILS approaches as fast as possible in the skyhawk, usually around 115 KIAS (just about cruise power). This is done to accomodate faster jet traffic at the airports we typically shoot ILS's into. Ideally, you do want to configure the airplane with 10 degrees of flaps and slow to 90 KIAS in the C172 within half a dot of glideslope intercept, but with a 10 knot headwind, this will give you a groundspeed of 80 knots. You will not be on the controller's good side. It's pretty rare for me to be cleared for an ILS in a C172 without being told "keep your speed up". Most airports with an ILS have 5000ft+ runways, and it's not a problem stopping the skyhawk within 75% of that distance, even going 115 over the middle marker at DH. However, if you were in a situation where you had a short runway with an ILS (do they make those?), you would definitely want to configure the airplane before glideslope intercept and ride 'er down at 90.