Search found 5795 matches

by ahramin
Thu Mar 11, 2021 6:06 pm
Forum: General Comments
Topic: Emergency Radio
Replies: 15
Views: 990

Re: Emergency Radio

You might not have a certified VHF radio on board, but a portable or non aviation one. In that case you can not fill out the VHF in the radio equipment, If you have a portable aviation VHF radio on board, you file V in the aircraft equipment codes. There is no need for it to be certified. And if yo...
by ahramin
Thu Mar 11, 2021 5:17 pm
Forum: General Comments
Topic: Shock Cooling a myth?
Replies: 94
Views: 7993

Re: Shock Cooling a myth?

But why would you need that cooling for the final 3 minutes of the flight? You wouldn't go full rich when you start descending, right? So what's so special about the last few minutes? I assume you're not generating that much power that you would need to go above 32 map (unless that was your whole p...
by ahramin
Thu Mar 11, 2021 5:08 pm
Forum: General Comments
Topic: Emergency Radio
Replies: 15
Views: 990

Re: Emergency Radio

I think it's obvious that if you have a VHF radio in your aircraft equipment, SAR knows that you have a radio that can transmit on 121.5. I'm inclined to think that an emergency radio is not the same as the aircraft radio. Yes, the ICAO documentation only specifies that it's 243 or 121.5 but what is...
by ahramin
Thu Mar 11, 2021 3:34 pm
Forum: General Comments
Topic: Emergency Radio
Replies: 15
Views: 990

Re: Emergency Radio

So we're definitely talking about a voice radio, not an ELT.
by ahramin
Thu Mar 11, 2021 3:01 pm
Forum: General Comments
Topic: Emergency Radio
Replies: 15
Views: 990

Emergency Radio

ICAO Flight Plan Form, Item 19 (Supplementary Information), Emergency Radio. R/ U V E.

E means ELT, and then you specify what kind, almost always AF.

What are U and V Emergency Radios? Are these ELTs or something else?
by ahramin
Thu Mar 11, 2021 11:01 am
Forum: General Comments
Topic: Shock Cooling a myth?
Replies: 94
Views: 7993

Re: Shock Cooling a myth?

Anove 75% it's so risky to lean that they don't want you doing it unless it's for a high density altitude takeoff. Please don't make it sound llike you're taking your life in your hands by touching the red knob. It's not life on the edge. Lean when it's safe to do so. Don't lean, when you shouldn't...
by ahramin
Thu Mar 11, 2021 5:41 am
Forum: General Comments
Topic: Shock Cooling a myth?
Replies: 94
Views: 7993

Re: Shock Cooling a myth?

The risk of a full power lean go-around is that it reduces your detonation margin to the point where you might actually get detonation. It's hard to do with an aircraft engine but it can be done. Detonation does a massive amount of wear and tear in a very short period of time, and can easily lead t...
by ahramin
Tue Mar 09, 2021 11:04 pm
Forum: Maintenance
Topic: Old fuel in airplane tanks
Replies: 8
Views: 1671

Re: Old fuel in airplane tanks

I'm currently running a related but non-aviation experiment but with different grades of mogas to see how the octane rating and Reid vapour pressure decay over time. Far from scientific, I'm doing it with COTS gas cans and old motorcycle tanks. Testing will happen next year, I'll see if I remember ...
by ahramin
Tue Mar 09, 2021 6:44 pm
Forum: Maintenance
Topic: Old fuel in airplane tanks
Replies: 8
Views: 1671

Re: Old fuel in airplane tanks

Homeopathic flying, very interesting. Avogadro would be proud. For your theoretical example, my guess it that an engine burning a 10% expired fuel mix would run poorly, but still run. In actual practice, there are thousands of planes that sit around for years and then go flying without doing anythin...
by ahramin
Mon Mar 08, 2021 6:55 pm
Forum: General Comments
Topic: What do you use for gust correction
Replies: 20
Views: 1922

Re: What do you use for gust correction

Maybe I misunderstand, but why would you add half the speed of a steady wind to the approach speed? Easy answer is because that's what the FCTM says. More complicated answer is wind shear. You add the extra speed to deal with any potential wind shear, then bleed it off to reach the threshold withou...
by ahramin
Sat Mar 06, 2021 3:52 pm
Forum: NavCanada Hiring
Topic: Nav Canada Training After Covid
Replies: 14
Views: 9495

Re: Nav Canada Training After Covid

They have a panel of experts who will calculate exactly when they have to start training in order to just barely keep up with demand. About 6 months after that point they'll start thinking about getting the training department fired up.
by ahramin
Fri Mar 05, 2021 8:23 pm
Forum: General Comments
Topic: Getting an OC without an aircraft
Replies: 14
Views: 1572

Re: Getting an OC without an aircraft

Egg. You need an OC before applying to the CTA.
by ahramin
Fri Mar 05, 2021 5:50 pm
Forum: General Comments
Topic: Getting an OC without an aircraft
Replies: 14
Views: 1572

Re: Getting an OC without an aircraft

Oh, well that's good news then. I was told differently.

Thank you BPF.
by ahramin
Fri Mar 05, 2021 4:47 pm
Forum: General Comments
Topic: Getting an OC without an aircraft
Replies: 14
Views: 1572

Getting an OC without an aircraft

Has anyone ever heard of a way to submit an application for a 703 OC without having the aircraft registered to the company yet? Lease agreement signed for a future date? New purchase with a delivery date guarantee? Anything?
by ahramin
Fri Mar 05, 2021 10:40 am
Forum: General Comments
Topic: Shock Cooling a myth?
Replies: 94
Views: 7993

Re: Shock Cooling a myth?

photofly wrote: Fri Mar 05, 2021 5:18 amI have two planes. Neither POH says mixture rich before landing. One doesn’t mention mixture at all in either pre-landing or balked landing, and the other specifically says mixture rich on balked approach, *after* full throttle.
Interesting. Could you share the types please?
by ahramin
Fri Mar 05, 2021 10:36 am
Forum: General Comments
Topic: Shock Cooling a myth?
Replies: 94
Views: 7993

Re: Shock Cooling a myth?

photofly wrote: Thu Mar 04, 2021 9:55 pmI think you train to put the mixture rich as a prelude to applying full power, at any time you apply full power.
Agreed.
by ahramin
Fri Mar 05, 2021 10:20 am
Forum: General Comments
Topic: Shock Cooling a myth?
Replies: 94
Views: 7993

Re: Shock Cooling a myth?

In that unlikely scenario yes you could put the throttle in and the engine could die. You are positing that the real and immediate risk of a full power lean go-around arises only after an expedited descent? No. I never mentioned an expedited descent, I'm just trying to think of an example situation...
by ahramin
Thu Mar 04, 2021 11:06 pm
Forum: Flight Training
Topic: Flying instructor needed for our PPL Coaching.
Replies: 2
Views: 793

Re: Flying instructor needed for our PPL Coaching.

YDT is the IATA code for CZBB, which no one in the world uses since there's no IATA airline flying to CZBB. Strange.
by ahramin
Thu Mar 04, 2021 11:04 pm
Forum: General Comments
Topic: Is this a joke?
Replies: 21
Views: 2679

Re: Is this a joke?

A friend of mine just told me today that the travel budget for his company next year is 150% of what it was in 2019. They need to get their business relationships back on track and those relationships are made on the golf course and at the restaurant, not on the other side of a screen. Interesting p...
by ahramin
Thu Mar 04, 2021 10:57 pm
Forum: General Comments
Topic: Shock Cooling a myth?
Replies: 94
Views: 7993

Re: Shock Cooling a myth?

Another note on "full rich". At full rich our aircraft is flowing about 115% of full rated fuel flow which is fine in the winter at sea level but too much fuel in the summer. The EFIS gives us real time density altitude and we use that information to set the mixture out as much as an inch and a half...

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