banner
banner

27 Apr 2024, 14:21 [ UTC - 5; DST ]


Greenwich AeroGroup (banner)



Reply to topic  [ 223 posts ]  Go to page Previous  1 ... 10, 11, 12, 13, 14, 15  Next
Username Protected Message
 Post subject: Re: L-39 Operators?
PostPosted: 04 Aug 2023, 16:52 
Online


 Profile




Joined: 07/13/19
Posts: 381
Post Likes: +501
Location: FL
Aircraft: F-35A, L-39, '74 B55
It certainly happens and can happen to anyone. For what it's worth, I thought whoever that was did a pretty good job of pressing with the rotation and flying back to the land. I didn't hear the comm or see the pattern, but it seemed to be a good recovery.

It's an incredibly simple, yet reliable jet. I've never been crazy about the canopy locking mechanism. Depending on the exact jet, sometimes the light will go out when you lock it forward, but then when you pressurize the seals it can pop the light. Obviously you're always looking for the light, but I also bring it into my cross check during the full power run up. When part of the general departures, Osh is a difficult place to do the run up with the L-39 as you can blast just about everyone.

It's a fun jet to fly, but definitely not a fighter. It's tremendously underpowered, nothing happens exceptionally fast and tight formation with it is challenging, but it's absolutely fun to fly. You don't really appreciate acts the like Patriots etc until you fly really tight with it. The power availability and energy loss is quite poor. You can leave the power up and fan the boards, but the switch is not really designed for that, so the springs can wear and break fairly quickly. 103-106% is a decent spot for power availability, but much below that there is significant lag. However, I don't really worry about landing roll as much as with modern fighters and cross countries are cake but range limited.

Everyone says a nosewheel steering mod would be too cost prohibitive, but man, that would be Gucci.


Top

 Post subject: Re: L-39 Operators?
PostPosted: 14 Aug 2023, 18:44 
Offline


User avatar
 Profile




Joined: 09/05/09
Posts: 4114
Post Likes: +2760
Location: Small Town, NC
Anyone here with an L-39 use a Mid Continent TI250 series inverter to replace the GIANT 115V inverters in the jet?

I found a good deal on one (TI-256-3), and I'm trying to get a little guidance on how to wire in the fault indicator system; pin 13 of the L39 cannon plug feeds the fault annunciator light.

Looking at the L39 wiring diagram, it looks like 13 is coming from a transistor, so I though it would provide power when a fault is detected. But when I connected a separate 28VDC power supply to that pin (#13) I get no warning light.

_________________
"Find worthy causes in your life."


Top

 Post subject: Re: L-39 Operators?
PostPosted: 25 Aug 2023, 05:53 
Offline


 Profile




Joined: 01/21/14
Posts: 5162
Post Likes: +3704
Company: FAA Flight Check
Location: Oklahoma City, OK (KOKC)
Aircraft: King Air 300F/C90GTx
Saw one at KSAT painted up like Blue Angel #4.


Top

 Post subject: Re: L-39 Operators?
PostPosted: 29 Aug 2023, 23:47 
Offline


 Profile




Joined: 01/03/15
Posts: 108
Post Likes: +113
Aircraft: King Air
Attachment:
IMG_8167.jpeg


Please login or Register for a free account via the link in the red bar above to download files.


Top

 Post subject: Re: L-39 Operators?
PostPosted: 31 Aug 2023, 17:30 
Offline


User avatar
 WWW  Profile




Joined: 05/02/15
Posts: 846
Post Likes: +593
Location: Austin, Texas and Argentina
Aircraft: L-39 Albatros
Flying an L-39 down the Star Wars Canyon:

[youtube]https://youtu.be/usYI1IgqWi8[/youtube]


Top

 Post subject: Re: L-39 Operators?
PostPosted: 31 Aug 2023, 20:15 
Online


 Profile




Joined: 07/13/19
Posts: 381
Post Likes: +501
Location: FL
Aircraft: F-35A, L-39, '74 B55
Username Protected wrote:
Attachment:
IMG_8167.jpeg



They make it look easy. L-39 close formation maneuvers are definitely much harder than they look with that low-spool time!


Top

 Post subject: Re: L-39 Operators?
PostPosted: 31 Aug 2023, 20:45 
Offline


User avatar
 Profile




Joined: 09/05/09
Posts: 4114
Post Likes: +2760
Location: Small Town, NC
I've had Warman in my backseat- and it was memorable. that guys is a badass.

I'd be honored to get a canyon run with him.

_________________
"Find worthy causes in your life."


Top

 Post subject: Re: L-39 Operators?
PostPosted: 01 Sep 2023, 10:27 
Offline


 Profile




Joined: 01/21/14
Posts: 5162
Post Likes: +3704
Company: FAA Flight Check
Location: Oklahoma City, OK (KOKC)
Aircraft: King Air 300F/C90GTx
Username Protected wrote:
Flying an L-39 down the Star Wars Canyon:

[youtube]https://youtu.be/usYI1IgqWi8[/youtube]

I guess I missed that part - the Jedi transition.
Can you explain more Chris?


Top

 Post subject: Re: L-39 Operators?
PostPosted: 01 Sep 2023, 14:16 
Offline


User avatar
 WWW  Profile




Joined: 05/02/15
Posts: 846
Post Likes: +593
Location: Austin, Texas and Argentina
Aircraft: L-39 Albatros
Username Protected wrote:
I guess I missed that part - the Jedi transition.
Can you explain more Chris?

Sure - first stop is the R-2508 airspace webpage:
https://www.edwards.af.mil/About/R-2508/

The top right link is the R-2508 user's handbook that talks about the airspace and route. You can see the Jedi transition on the map below. The Jedi transition is just a part of a larger training route, and it happens to be the part that goes through the Star Wars Canyon aka Rainbow Canyon. There are certain procedures to follow, like always fly it West to East. This is for military users, but it's all important stuff to know if you're flying in the area, and luckily it's public information (although some of the areas are restricted).

Attachment:
Sidewinder_route.jpg


Please login or Register for a free account via the link in the red bar above to download files.


Top

 Post subject: Re: L-39 Operators?
PostPosted: 01 Sep 2023, 14:42 
Offline


 Profile




Joined: 01/21/14
Posts: 5162
Post Likes: +3704
Company: FAA Flight Check
Location: Oklahoma City, OK (KOKC)
Aircraft: King Air 300F/C90GTx
That is good stuff Chris.
I imagine that our higher HQ conformed our local squadron procedures with the User's Range Manual.
Maybe some other USN guy has more details about the Lemoore's squadron using the ranges.

Through my time there - I never saw the User Manual. Never flew this 'Sidewinder Low Level Route' of which the canyon is a small part of.

We would fly into Owen's Valley - head down to 500' feet and do a 'warm-up' flight following the road to the south along the east side of the valley and then follow it back to the east and eventually a little north (some sharps turns in there), before dipping into the valley, coming out the east end of the canyon and then either working in the Saline Valley or turning north and going into the Panamint Valley for the rest of our Low Altitude Tactical Training (LATT). One of my absolute favorite training evolutions.
Low flying is where is it at :thumbup: :pilot: :dance:


Top

 Post subject: Re: L-39 Operators?
PostPosted: 01 Sep 2023, 15:36 
Offline


User avatar
 WWW  Profile




Joined: 05/02/15
Posts: 846
Post Likes: +593
Location: Austin, Texas and Argentina
Aircraft: L-39 Albatros
Username Protected wrote:
We would fly into Owen's Valley - head down to 500' feet and do a 'warm-up' flight following the road to the south along the east side of the valley and then follow it back to the east and eventually a little north (some sharps turns in there), before dipping into the valley, coming out the east end of the canyon and then either working in the Saline Valley or turning north and going into the Panamint Valley for the rest of our Low Altitude Tactical Training (LATT). One of my absolute favorite training evolutions.
Low flying is where is it at :thumbup: :pilot: :dance:



That sounds awesome.... as far as canyons go, Star Wars Canyon isn't the coolest, but it may be the most well-known (by the public). I wish I lived in a place that had more canyons I could explore... it's fun when done safely.


Top

 Post subject: Re: L-39 Operators?
PostPosted: 05 Sep 2023, 23:16 
Offline


 Profile




Joined: 04/09/16
Posts: 541
Post Likes: +157
Location: Utah
Aircraft: MU-2B
Username Protected wrote:
I've had Warman in my backseat- and it was memorable. that guys is a badass.

I'd be honored to get a canyon run with him.

I’m hoping to have warman back in my airplane next month. He’s a total badass.


Top

 Post subject: Re: L-39 Operators?
PostPosted: 06 Sep 2023, 00:34 
Offline


 WWW  Profile




Joined: 12/03/14
Posts: 19252
Post Likes: +23623
Company: Ciholas, Inc
Location: KEHR
Aircraft: C560V
Saw this impressive photo of L-39 formation flying at SnF this year:
Attachment:
l-39-formation.png

Now that's some formation flying and awesome photography. Not photoshopped!

The picture is framed and for sale at L'Image in Wichita, KS (part of a showing presently there through the end of the month).

Photo by Bonnie Johnson, Images by Bonnie.

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

 Post subject: Re: L-39 Operators?
PostPosted: 07 Sep 2023, 08:48 
Offline


User avatar
 Profile




Joined: 09/05/09
Posts: 4114
Post Likes: +2760
Location: Small Town, NC
I lost another 62lbs...

Got rid of the Russian 115V AC inverters (there are 2 in the L39). they power some weaps, 1 of the engine gauges, and the ECS system. the pull 55A and can deliver 400VA at 115VAC and also deliver 80VAC. they are for sale if anyone wants them.

I replaced with a mid-continent 115V inverter that weighs 2.5lbs. it took me a minute to figure out the wiring, and I made a useful mod (thanks to Mike C. for the EE advice):

1) in the normal design, the 115V INV FAIL light comes on if the inverter is overloaded.
2) I also wanted the warning if the inverter went offline (like the Citation does). so I added the appropriate rectifiers and relay to do such. that's the black box underneath the inverter.

a good project.


Please login or Register for a free account via the link in the red bar above to download files.

_________________
"Find worthy causes in your life."


Top

 Post subject: Re: L-39 Operators?
PostPosted: 07 Sep 2023, 23:16 
Offline


 Profile




Joined: 04/09/16
Posts: 541
Post Likes: +157
Location: Utah
Aircraft: MU-2B
Did your old one fail or is it still good?

Making a pile of spares (I run fairly stock jets, with little intention of modifying)


Top

Display posts from previous:  Sort by  
Reply to topic  [ 223 posts ]  Go to page Previous  1 ... 10, 11, 12, 13, 14, 15  Next




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

Jump to:  

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

.kingairnation-85x50.png.
.one-mile-up-85x100.png.
.kadex-85x50.jpg.
.wilco-85x100.png.
.shortnnumbers-85x100.png.
.tempest.jpg.
.traceaviation-85x150.png.
.blackhawk-85x100-2019-09-25.jpg.
.pdi-85x50.jpg.
.ssv-85x50-2023-12-17.jpg.
.centex-85x50.jpg.
.lucysaviation-85x50.png.
.saint-85x50.jpg.
.chairmanaviation-85x50.jpg.
.tat-85x100.png.
.jandsaviation-85x50.jpg.
.dbm.jpg.
.blackwell-85x50.png.
.AAI.jpg.
.ABS-85x100.jpg.
.geebee-85x50.jpg.
.concorde.jpg.
.temple-85x100-2015-02-23.jpg.
.cav-85x50.jpg.
.Wingman 85x50.png.
.aviationdesigndouble.jpg.
.daytona.jpg.
.gallagher_85x50.jpg.
.planelogix-85x100-2015-04-15.jpg.
.Foreflight_85x50_color.png.
.avfab-85x50-2018-12-04.png.
.headsetsetc_Small_85x50.jpg.
.Wentworth_85x100.JPG.
.aircraftassociates-85x50.png.
.airmart-85x150.png.
.Latitude.jpg.
.boomerang-85x50-2023-12-17.png.
.kingairacademy-85x100.png.
.Marsh.jpg.
.puremedical-85x200.jpg.
.bpt-85x50-2019-07-27.jpg.
.SCA.jpg.
.stanmusikame-85x50.jpg.
.camguard.jpg.
.jetacq-85x50.jpg.
.aeroled-85x50-2022-12-06.jpg.
.bullardaviation-85x50-2.jpg.
.wat-85x50.jpg.
.aircraftferry-85x50.jpg.
.CiESVer2.jpg.
.Rocky-Mountain-Turbine-85x100.jpg.
.ei-85x150.jpg.
.midwest2.jpg.
.MountainAirframe.jpg.
.sierratrax-85x50.png.
.avionwealth-85x50.png.