08 Jun 2025, 15:13 [ UTC - 5; DST ]
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Username Protected
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Post subject: Re: Cessna 421 Ownership and Purchase  Posted: 26 Jan 2015, 17:13 |
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Joined: 12/03/14
Posts: 20293
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Company: Ciholas, Inc
Location: KEHR
Aircraft: C560V
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Username Protected wrote: 386', nothing but a fence and flat ground. Sounds like O32, Reedley. http://www.airnav.com/airport/O32There are some overruns at each end, plus farm fields all around, save the road north of the field. This seems doable in a 421 unless very heavy and/or hot. Mike C.
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Email mikec (at) ciholas.com
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Post subject: Re: Cessna 421 Ownership and Purchase Posted: 26 Jan 2015, 17:39 |
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Joined: 08/12/10
Posts: 1693
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Location: South Texas
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Username Protected wrote: Very doable. If the aircraft isnt VG equipped, who makes the best kit, what's it cost? Are there any pdf's showing performance with and w/out vg's?
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Post subject: Re: Cessna 421 Ownership and Purchase Posted: 26 Jan 2015, 18:31 |
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Joined: 08/08/12
Posts: 1445
Post Likes: +938
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The VG's don't really improve performance. They lower Vmc which adds a safety margin.
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Post subject: Re: Cessna 421 Ownership and Purchase Posted: 26 Jan 2015, 19:07 |
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Joined: 11/08/12
Posts: 12805
Post Likes: +5255
Location: Jackson, MS (KHKS)
Aircraft: 1961 Cessna 172
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Username Protected wrote: The VG's don't really improve performance. They lower Vmc which adds a safety margin. Well, to the extent that you are willing to rotate at a speed based on VMC (rather than VYSE) then the VG's might help short field takeoffs. 5 kts lower Vr would make a big difference.
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Post subject: Re: Cessna 421 Ownership and Purchase Posted: 26 Jan 2015, 21:25 |
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Joined: 01/09/13
Posts: 1249
Post Likes: +246
Location: Frederick , MD (KHGR)
Aircraft: C421 B36TC 58P
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I had the Vg on the P and I believe they served a purpose. I've heard in my discussions that the STOl kit is nice too BUT maintenance is required to maintain.. so just another variable..
Personally it's not a need.
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Good Luck,
Tim
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Post subject: Re: Cessna 421 Ownership and Purchase Posted: 26 Jan 2015, 21:34 |
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Joined: 06/09/09
Posts: 4438
Post Likes: +3304
Aircraft: C182P, Merlin IIIC
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None.
I have the RSTOL in my 182 and it has not been touched in 40 years. Handy for bush work.
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Post subject: Re: Cessna 421 Ownership and Purchase Posted: 26 Jan 2015, 22:37 |
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Joined: 12/03/14
Posts: 20293
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Company: Ciholas, Inc
Location: KEHR
Aircraft: C560V
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Username Protected wrote: I'm not sure what maintenance would be involved with a stol kit. As I understand it modifies the flap/aileron/etc. I can't imagine what would be consumable or maintainable. I don't know the design, but bearings, tracks, screws, travel nuts, rollers could all need replacement in due course. Mike C.
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Post subject: Re: Cessna 421 Ownership and Purchase Posted: 26 Jan 2015, 22:58 |
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Joined: 11/08/12
Posts: 12805
Post Likes: +5255
Location: Jackson, MS (KHKS)
Aircraft: 1961 Cessna 172
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Username Protected wrote: I'm not sure what maintenance would be involved with a stol kit. As I understand it modifies the flap/aileron/etc. I can't imagine what would be consumable or maintainable. I don't know the design, but bearings, tracks, screws, travel nuts, rollers could all need replacement in due course. Mike C.
Is this likely to be different from a normal set of wings? What's different?
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Post subject: Re: Cessna 421 Ownership and Purchase Posted: 26 Jan 2015, 23:05 |
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Joined: 12/03/14
Posts: 20293
Post Likes: +25434
Company: Ciholas, Inc
Location: KEHR
Aircraft: C560V
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Username Protected wrote: Is this likely to be different from a normal set of wings? What's different? Yes, entirely different. The STOL flap system is an entirely different mechanical design. A "normal" 421 flap doesn't go down and back:  Mike C.
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Post subject: Re: Cessna 421 Ownership and Purchase Posted: 26 Jan 2015, 23:08 |
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Joined: 11/08/12
Posts: 12805
Post Likes: +5255
Location: Jackson, MS (KHKS)
Aircraft: 1961 Cessna 172
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Username Protected wrote: Is this likely to be different from a normal set of wings? What's different? Yes, entirely different. The STOL flap system is an entirely different mechanical design. A "normal" 421 flap doesn't go down and back: Mike C.
Yes I understand the wing is physically different but why would it be maintenance intensive? normal flaps etc rarely need work.
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Post subject: Re: Cessna 421 Ownership and Purchase Posted: 26 Jan 2015, 23:10 |
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Joined: 12/03/14
Posts: 20293
Post Likes: +25434
Company: Ciholas, Inc
Location: KEHR
Aircraft: C560V
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Username Protected wrote: Yes I understand the wing is physically different but why would it be maintenance intensive? normal flaps etc rarely need work. Flaps that hinge down are simple. Flaps that run on tracks that run back and down are not and have more moving parts and more wear points. Eventually those parts need to be replaced. See figure 1 here: http://www.sijet.com/download/SB_SI09-8 ... v.A6-12-12).pdf Lots of moving parts! Mike C.
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Last edited on 26 Jan 2015, 23:13, edited 1 time in total.
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