Cat Driver wrote:And I am damned if I'll accept evasive half answers such as the following regardless of who the author is.
Okay, fair enough.
Cat Driver wrote:Is this guy trying to suggest that because there is no direct instructions to raise the gear on these light twin engine airplanes after take off that it can be taken to mean gear retraction is optional?
I certainly believe that any multi-engine aeroplane will have vastly improved single-engine performance with the gear retracted. I don't see anywhere that I could have given you the impression that raising it was optional? Maybe I missed something.
Cat Driver wrote:I have flown a lot of light twin engine airplane and can't recall ever having flown one that will fly with the gear down on one engine.
I have flown many a multi-engine aeroplane that is capable of maintaining altitude with the gear extended (given a low density altitude and less than gross weight). I would agree that a vast majority of them have terrible single-engine performance near gross weight and at any higher density altitude -- leaving the gear down certainly makes the situation much worse.
Cat Driver wrote:TC Guy wrote:
I would suggest that if any flight school has a policy for gear extensions/retractions in the circuit, it may be for reasons other than Transport Canada.
So once the FTU OC is issued flight schools can just put in place training policies that put the students and instructors at risk?
I do have to say that in this specifc case, all I know about it is what was said here.
If I had anything to do with it (I do not) and I had concerns, I would sit down with the CFI of the flight school and discuss them. There may be factors or considerations that I have no knowledge of. It is also possible that there are factors that they have not considered.
Cat Driver wrote:What about all the human factors training, what about all the PDM training or is all that just pablum to make it look good?
I sure hope not. I believe that PDM programs are effective in reducing accidents.
Cat Driver wrote:TC Guy wrote:
Maybe to minimize risk,
By increasing the risk factor?
Well, there are several risk factors at work here, and all have to be considered.
Possible Risk factors cause by leaving gear extended in the circuit:
1) One risk is that the student (and Instructor) may forget to put down the gear in a busy environment (the circuit). By leaving the gear down in the circuit, this risk is mitigated.
2) There is the risk of additional cycles on the gear could shorten the life of the gear motor, as many of the light multi-engine aircraft that some schools are using for training were not designed for high cycles. This could result in a gaer failure, and emergency extension, and additional risk. By leaving the gear down in the circuit, this risk is mitigated.
3) Another sorce of risk has to do with an engine failure on climb-out at low altitude with the gear extended. This could lead to performance and controllability issues if the drill is not followed properly and proper airspeed control is not maintained. By retracting the gear once sufficient runway to land is no longer available, risk is mitigated.
I am sure you could come up with several other factors. Some for leaving the gear extended in the circuit, some against it.
People will have differing opinions on these factors -- some will dismiss them as poor arguments altogether. Fair enough. The point is that someone (usually the CFI) will make that determination, weighing all available factors, including the type of aircraft that they are operating, the experience of the Instructors, etc.
Just because you see the world in black and white doesn't mean that it is. If I see something that doesn't make sense to me, I go and talk to the CFI. Most of the time, it gets sorted out easily.
Cat Driver wrote:TC Guy wrote:
reduce maintenance costs, etc.
That is not a justifiable reason to increase the risk factor and I am finding it difficult to believe that someone who claims to be a TC flight training inspector would put forward such a lame excuse for an unorthodox training policy in a FTU.
I was simply listing this as one of the possible reasons. I was not supporting it.
You certainly are on the attack today, Cat. Glad I could assist.
Cat Driver wrote:TC Guy wrote:
Is it unsafe? No.
As long as both engines are running normally and the airplane is flown properly it can be argued that it is safe......but what if an engine quits?
An engine failure is an unusual situation. Happens quite rarely -- but happening close to the ground with the gear extended is certainly not a great place for it to happen. We do actually test this drill on the flight test (engine failure duirng the overshoot).
Cat Driver wrote:TC Guy wrote:
Is it a wise training strategy? Debatable.
Well for my part of this debate my opinion is the strategy of not retracting the gear on these light twins is not acceptable safety wise.
I am glad to see that you can provide some excellent opinions that are not all laced with some anti-TC sentiments. Makes for a much more interesting conversation.
-Guy