13 Nov 2025, 14:42 [ UTC - 5; DST ]
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 21 Dec 2017, 22:51 |
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Joined: 12/03/14 Posts: 20743 Post Likes: +26209 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
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Username Protected wrote: VMCA is 93 kts based on the FAA certification requirement conditions, aft cg, gross weight etc. I rotate at 95kts so during an engine failure at nose wheel liftoff you are already above VMCA. It will be real interesting if you have only 2 knots margin to Vmc and an engine quits. Going to require immediate, correct, and essentially full rudder. A little crosswind and you might not have enough rudder even being just above Vmc. Amusingly, my Vmc is also 93 knots, I rotate 103 knots. Seems strange the Commander with that long and huge tail can't do a lower Vmc. Mike C.
_________________ Email mikec (at) ciholas.com
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 22 Dec 2017, 01:15 |
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Joined: 12/03/14 Posts: 20743 Post Likes: +26209 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
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Username Protected wrote: It’s actually 83 knots That seems more like I would expect given the geometry of the airframe. Mike C.
_________________ Email mikec (at) ciholas.com
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 22 Dec 2017, 03:07 |
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Joined: 11/09/13 Posts: 1910 Post Likes: +927 Location: KCMA
Aircraft: Aero Commander 980
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Username Protected wrote: VMCA is 93 kts based on the FAA certification requirement conditions, aft cg, gross weight etc. I rotate at 95kts so during an engine failure at nose wheel liftoff you are already above VMCA. It will be real interesting if you have only 2 knots margin to Vmc and an engine quits. Going to require immediate, correct, and essentially full rudder. A little crosswind and you might not have enough rudder even being just above Vmc. Amusingly, my Vmc is also 93 knots, I rotate 103 knots. Seems strange the Commander with that long and huge tail can't do a lower Vmc. Mike C.
The Commander does it with a clean wing.
What’s amusing is how many different VMC speeds the MU-2 has?
Is that 93knot VMC for a clean wing no way can’t be, maybe with 5 degrees of flap, no it’s must be at 20degrees of flap?
There are too many speeds to remember! It’s only a TP why the complexity? TP are supposed to be simple.
It’s a unnecessary burden on the MU-2 pilot to remember all those different speeds and flap configuration. The same performance is available in a Commander and other TP with none of that BS.
That is one of the many reasons why the MU-2 requires continuous specialized training.
Just for fun here are some amusing numbers,
VYSE clean for the MU-2 150kts
For the Commander only 113 kts
Or
SE rate of climb MU-2 450fpm
Commander 1000fpm
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 22 Dec 2017, 10:27 |
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Joined: 12/03/14 Posts: 20743 Post Likes: +26209 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
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Username Protected wrote: It’s a unnecessary burden on the MU-2 pilot to remember all those different speeds and flap configuration. Ah, Commanders are for people who can't handle using flaps, for simple folk. It probably upsets Commander pilots that stall speeds change with flaps. How annoying! Clearly, no Commander pilot should ever transition to a jet. Way too many numbers to know... Mike C.
_________________ Email mikec (at) ciholas.com
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 22 Dec 2017, 11:36 |
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Joined: 07/04/11 Posts: 1709 Post Likes: +244 Company: W. John Gadd, Esq. Location: Florida
Aircraft: C55 Baron
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Username Protected wrote: Narcos' favorite soft field, high payload, aircraft  Something has to off set the op X.
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 22 Dec 2017, 12:51 |
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Joined: 11/09/13 Posts: 1910 Post Likes: +927 Location: KCMA
Aircraft: Aero Commander 980
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Username Protected wrote: It’s a unnecessary burden on the MU-2 pilot to remember all those different speeds and flap configuration. Ah, Commanders are for people who can't handle using flaps, for simple folk. It probably upsets Commander pilots that stall speeds change with flaps. How annoying! Clearly, no Commander pilot should ever transition to a jet. Way too many numbers to know... Mike C.
No Commander pilot should transition to a MU-2. FIFY
If you transition to a jet you go faster and higher. There is a payoff for the added complexities.
There is no payoff in the MU-2 you get TP speeds and jet complexity.
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 22 Dec 2017, 22:03 |
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Joined: 11/09/09 Posts: 3242 Post Likes: +4435 Location: KHII & KREI
Aircraft: RV6A, C182M
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Username Protected wrote: That's my style out of Catalina. The runway could use some care. Understatement of the year! Dave
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 23 Dec 2017, 03:18 |
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Joined: 11/09/13 Posts: 1910 Post Likes: +927 Location: KCMA
Aircraft: Aero Commander 980
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Username Protected wrote:
The Commander does it with a clean wing.
What’s amusing is how many different VMC speeds the MU-2 has?
Is that 93knot VMC for a clean wing no way can’t be, maybe with 5 degrees of flap, no it’s must be at 20degrees of flap?
There are too many speeds to remember! It’s only a TP why the complexity? TP are supposed to be simple.
It’s a unnecessary burden on the MU-2 pilot to remember all those different speeds and flap configuration. The same performance is available in a Commander and other TP with none of that BS.
That is one of the many reasons why the MU-2 requires continuous specialized training.
Just for fun here are some amusing numbers,
VYSE clean for the MU-2 150kts
For the Commander only 113 kts
Or
SE rate of climb MU-2 450fpm
Commander 1000fpm
I'm just a simple twin piston driver, but I have 3 different Vmc's for 3 different flap settings. I never knew it was such a big deal. Guess I'm ready for a jet! 
Alaways a good time tp upgrade
You might have three VMC but you only have one on Take off and the spread in knots between yours is small.
Not so on a MU-2, same with the stall speeds.
Last edited on 23 Dec 2017, 12:35, edited 1 time in total.
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 23 Dec 2017, 11:48 |
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Joined: 11/27/16 Posts: 2374 Post Likes: +4023
Aircraft: B17,18,24,25,29,58,
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It is intuitively obvious, even to the laypilot, that this dyslexic aviator was doing a reduced power takeoff using a temp of 578 instead of 875 and rotated at 59 instead of 95. That reminds me of the story of the confused Aggie student pilot that bent the airplane on his first solo. The instructor, upon getting out of the airplane, reminded the student to turn into the wind as soon as he broke ground. On takeoff the confused student broke wind first and then turned into the ground.
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 26 Dec 2017, 01:05 |
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Joined: 04/30/14 Posts: 81 Post Likes: +34
Aircraft: Cessna 195
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Username Protected wrote: Maybe ease up on the back pressure until she's ready to fly?
[youtube]http://youtu.be/rZ4QfAluHBU[/youtube] Why? What's wrong here?
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 26 Dec 2017, 02:22 |
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Joined: 12/17/13 Posts: 6652 Post Likes: +5963 Location: Hollywood, Los Angeles, CA
Aircraft: Aerostar Superstar 2
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Username Protected wrote: Maybe ease up on the back pressure until she's ready to fly?
[youtube]http://youtu.be/rZ4QfAluHBU[/youtube] Why? What's wrong here?
All the nose wear savings he's able to buy Bitcoins for!
_________________ Without love, where would you be now?
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Post subject: Re: How not to takeoff in a Turbo Commander Posted: 26 Dec 2017, 16:24 |
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Joined: 03/28/17 Posts: 8941 Post Likes: +11347 Location: N. California
Aircraft: C-182
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Username Protected wrote: It was amateur hour for sure.
This was before UPS pilots were UPS pilots.
UPS subcontracted their flying and the pay for pilots was pathetic no matter what you were flying.
They got what they paid for that day! "Before UPS pilots were UPS pilots" Many of the initial hire at UPS were the contract pilots that had been flying their planes for them, and became the senior UPS pilots, except for the Ipex ( International Parcel Express) pilots, UPS's initial airline operating certificate. The erratic DC-8 takeoff could have been a 3-engine ferry, and if so, they never should have let themselves be rushed. 3-engine takeoff on a DC-8 is not a piece of cake, and has to be done very carefully. There have been fatal crashes of DC-8's improperly attempting it, but it can be done safely.
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