18 Apr 2024, 01:47 [ UTC - 5; DST ]
|
Username Protected |
Message |
Username Protected
|
Post subject: Re: Citation 501sp Posted: 10 Feb 2018, 20:24 |
|
|
|
|
Joined: 05/05/09 Posts: 4958 Post Likes: +4796
Aircraft: G44, C501, C55, R66
|
|
Username Protected wrote: Be sure to bleed the hydraulic lines as well. You don’t want nitrogen in your fluid. Is Skydrol and Nitrogen miscible? Brakes are solid now; manual didn't say anything about bleeding them but that's no big deal if you think it's a good idea?
|
|
Top |
|
Username Protected
|
Post subject: Re: Citation 501sp Posted: 10 Feb 2018, 22:45 |
|
|
|
|
Joined: 01/31/09 Posts: 5233 Post Likes: +3026 Location: Northern NJ
Aircraft: SR22;CJ2+;C510
|
|
Username Protected wrote: Be sure to bleed the hydraulic lines as well. You don’t want nitrogen in your fluid. Is Skydrol and Nitrogen miscible? Brakes are solid now; manual didn't say anything about bleeding them but that's no big deal if you think it's a good idea?
Nitrogen would only go through that line if someone pulled the emergency brake handle. If the nitrogen brakes are used and the shuttle valve works properly then the shuttle valve prevents nitrogen from contaminating the hydraulic fluid.
If you have your feet on the brake pedals when you pull the nitrogen handle you can backfeed nitrogen into the hydraulic fluid.
_________________ Allen
|
|
Top |
|
Username Protected
|
Post subject: Re: Citation 501sp Posted: 11 Feb 2018, 10:39 |
|
|
|
|
|
Joined: 12/09/10 Posts: 3632 Post Likes: +860 Location: KPAN
Aircraft: PA12
|
|
Username Protected wrote: If you have your feet on the brake pedals when you pull the nitrogen handle you can backfeed nitrogen into the hydraulic fluid. And risk rupturing the hydrolic fluid reservoir. At least that’s what they told us in initial.
_________________ 520 M35, 7ECA, CL65, CE550, E170/190, B737 5/19 737 5/18 E170/190 8/17 CL65 3/17 CE500
|
|
Top |
|
Username Protected
|
Post subject: Re: Citation 501sp Posted: 11 Feb 2018, 12:01 |
|
|
|
|
Joined: 12/03/14 Posts: 19252 Post Likes: +23622 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
|
|
Skydrol is nasty stuff to both humans and machine. Be careful with it. There are modern hydraulic fluids which are not nearly as nasty, but have higher flash points than 5606. For example MIL-PRF-83282 or MIL-PRF-87257. Any reasons one couldn't STC their use instead of Skydrol? Or is there an SB that allows that already? History of 5606, 83282, 87257: http://www.radcoind.com/media/brief-his ... ic-fluids/MIL-PRF-87257 flash point is is greater than 160C, Skydrol is 160C, so it seems like a better fluid all around. Mike C.
_________________ Email mikec (at) ciholas.com
|
|
Top |
|
Username Protected
|
Post subject: Re: Citation 501sp Posted: 11 Feb 2018, 18:10 |
|
|
|
|
|
Joined: 01/01/10 Posts: 3448 Post Likes: +2395 Location: Roseburg, Oregon
Aircraft: Citation Mustang
|
|
Username Protected wrote: Be sure to bleed the hydraulic lines as well. You don’t want nitrogen in your fluid. Is Skydrol and Nitrogen miscible? Brakes are solid now; manual didn't say anything about bleeding them but that's no big deal if you think it's a good idea? When you mentioned the shuttle valves were malfunctioning, it seemed that there could have been a risk of nitrogen entering the fluid system. If you’re confident nitrogen wasn’t introduced, you should be fine.
_________________ Previous A36TN owner
|
|
Top |
|
Username Protected
|
Post subject: Re: Citation 501sp Posted: 12 Feb 2018, 08:35 |
|
|
|
|
|
Joined: 02/22/09 Posts: 2563 Post Likes: +1958 Location: KLOM
Aircraft: J35, L-19, PT17
|
|
Username Protected wrote: (low probability, ever lost brakes in your bonanza?) I have. Left pedal went to the floor when I landed. It was fine 15 minutes before when I taxied out for take off.
|
|
Top |
|
Username Protected
|
Post subject: Re: Citation 501sp Posted: 12 Feb 2018, 22:28 |
|
|
|
|
Joined: 06/17/14 Posts: 5003 Post Likes: +1949 Location: KJYO
Aircraft: C-182, GA-7
|
|
Username Protected wrote:
Really happy this problem is fixed; atomized skydrol is some of the nastiest stuff I've encountered in aviation. I hated the days that they did the blowdowns in the factory or the service center at Gulfstream. That stuff was nasty and permeated even our uniform shirts a half hour later. Those things absorbed very little and came back clean. With skydrol in them the had to run them through the same stuff safetykleen used. Yuck!
|
|
Top |
|
Username Protected
|
Post subject: Re: Citation 501sp Posted: 21 Feb 2018, 22:31 |
|
|
|
|
|
Joined: 11/08/12 Posts: 6308 Post Likes: +3800 Location: San Carlos, CA - KHWD
Aircraft: Piaggio Avanti
|
|
Username Protected wrote: The manual has charts for sod strips; I just wanted to confirm that the Citation 501 is certified for grass strips. Any thoughts? Is there a difference?
_________________ -Jon C.
|
|
Top |
|
Username Protected
|
Post subject: Re: Citation 501sp Posted: 21 Feb 2018, 23:15 |
|
|
|
|
|
Joined: 01/29/09 Posts: 4697 Post Likes: +2404 Company: retired corporate mostly Location: Chico,California KCIC/CL56
Aircraft: 1956 Champion 7EC
|
|
Quote: I just wanted to confirm that the Citation 501 is certified for grass strips. Probably... It would be in limitations. ( Limitaion for the CJ4 was a paved runway though) There was a gravel runway kit ( reading about it in the Flight Safety 550 training manual) that had a nosewheel spin up using bleed air, to reduce the gravel spray on unimproved runways. I seem to recall it also had a guard behind the nosewheel and rock screens on the landing lights.
_________________ Jeff
soloed in a land of Superhomers/1959 Cessna 150, retired with Proline 21/ CJ4.
|
|
Top |
|
Username Protected
|
Post subject: Re: Citation 501sp Posted: 22 Feb 2018, 11:16 |
|
|
|
|
|
Joined: 02/27/08 Posts: 3173 Post Likes: +1260 Location: Galveston, TX
Aircraft: Malibu PA46-310P
|
|
Username Protected wrote: How much extra fuel does the Branson tank give? This is from the Sierra 2012 catalog. 120 gallons @$210k. Gary
And then you have to pay Signature to fill them...
|
|
Top |
|
Username Protected
|
Post subject: Re: Citation 501sp Posted: 23 Feb 2018, 01:26 |
|
|
|
|
|
Joined: 08/03/08 Posts: 16187 Post Likes: +8797 Location: 2W5
Aircraft: A36
|
|
Username Protected wrote: The manual has charts for sod strips; I just wanted to confirm that the Citation 501 is certified for grass strips. Any thoughts? My thought is that it's gonna piss off your landlord.
|
|
Top |
|
Username Protected
|
Post subject: Re: Citation 501sp Posted: 28 Feb 2018, 01:16 |
|
|
|
|
Joined: 12/03/14 Posts: 19252 Post Likes: +23622 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
|
|
Username Protected wrote: There was a gravel runway kit ( reading about it in the Flight Safety 550 training manual) that had a nosewheel spin up using bleed air, to reduce the gravel spray on unimproved runways. I seem to recall it also had a guard behind the nosewheel and rock screens on the landing lights. Gravel kit consisted of nose wheel spin up device, flap reinforcement, and minor other changes. Very rarely seen in the wild, here is a 550 with one, look at the nose wheel: Attachment: 550-gravel-kit-1.png Mike C.
Please login or Register for a free account via the link in the red bar above to download files.
_________________ Email mikec (at) ciholas.com
|
|
Top |
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum
|
Terms of Service | Forum FAQ | Contact Us
BeechTalk, LLC is the quintessential Beechcraft Owners & Pilots Group providing a
forum for the discussion of technical, practical, and entertaining issues relating to all Beech aircraft. These include
the Bonanza (both V-tail and straight-tail models), Baron, Debonair, Duke, Twin Bonanza, King Air, Sierra, Skipper, Sport, Sundowner,
Musketeer, Travel Air, Starship, Queen Air, BeechJet, and Premier lines of airplanes, turboprops, and turbojets.
BeechTalk, LLC is not affiliated or endorsed by the Beechcraft Corporation, its subsidiaries, or affiliates.
Beechcraft™, King Air™, and Travel Air™ are the registered trademarks of the Beechcraft Corporation.
Copyright© BeechTalk, LLC 2007-2024
|
|
|
|