# Sonex-B **URL:** https://sonexpilots.org/c/aircraft/sonex-b/11.md [Latest](https://sonexpilots.org/latest.md) · [Categories](https://sonexpilots.org/categories.md) · [Tags](https://sonexpilots.org/tags.md) --- ## [Wing Attachment Hardware](https://sonexpilots.org/t/wing-attachment-hardware/1730)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 2\ **Last updated:** [November 2, 2026, 9:29pm UTC](https://sonexpilots.org/t/wing-attachment-hardware/1730 "2026-11-02T21:29:39Z")
Wing Attachment Hardware Posted: Sun Nov 10, 2019 5:24 pm by n307tw I posted this question as a poll in the Facebook group but I want a little more insight as to what the Sonex community is using to attach their wings … --- ## [N830EH - First Flight](https://sonexpilots.org/t/n830eh-first-flight/6056)
**Author:** [@Badger830](https://sonexpilots.org/u/Badger830)\ **Replies:** 20\ **Last updated:** [September 26, 2026, 11:59pm UTC](https://sonexpilots.org/t/n830eh-first-flight/6056 "2026-09-26T23:59:30Z")
After 2.5 years, 1,229 hours, and about 9,014 rivets, I am happy to announce that Sonex 0849B has joined the “Completed Sonex Club”. Her first flight was this morning and was enjoyably uneventful for a first flight. The … --- ## [Sonex B rotax/UL power performance](https://sonexpilots.org/t/sonex-b-rotax-ul-power-performance/5864)
**Author:** [@Mountainflyer](https://sonexpilots.org/u/Mountainflyer)\ **Replies:** 15\ **Last updated:** [August 12, 2026, 3:51pm UTC](https://sonexpilots.org/t/sonex-b-rotax-ul-power-performance/5864 "2026-08-12T15:51:42Z")
Hi there. New to the forum, considering a sonex build/or purchase but there seems to be a lack of performance numbers for the B model with the 912 or ul power. Can anyone post some real world numbers? Cruise true airspee… --- ## [Steps to Remove and Replace a bad Lexan Windscreen](https://sonexpilots.org/t/steps-to-remove-and-replace-a-bad-lexan-windscreen/5607)
**Author:** [@dnpayne](https://sonexpilots.org/u/dnpayne)\ **Replies:** 14\ **Last updated:** [August 6, 2026, 12:04am UTC](https://sonexpilots.org/t/steps-to-remove-and-replace-a-bad-lexan-windscreen/5607 "2026-08-06T00:04:12Z")
Hello All, Unfortunately, I may need to replace the Lexan Windscreen on my B model Sonex project (in addition to already replacing the plexi Canopy months ago). I had posted last year about getting thread cutting oil (… --- ## [SNB-F10-13R/L - bad drawing?](https://sonexpilots.org/t/snb-f10-13r-l-bad-drawing/5823)
**Author:** [@ddeford](https://sonexpilots.org/u/ddeford)\ **Replies:** 1\ **Last updated:** [July 17, 2026, 6:30pm UTC](https://sonexpilots.org/t/snb-f10-13r-l-bad-drawing/5823 "2026-07-17T18:30:24Z")
I just sent this over to Sonex Tech support, but maybe someone here knows the answer and I can keep working this weekend: Hey guys, I’m working on my Aft Lower Cabin Details and have a question for you. The drawing s… --- ## [Sonex B dual control and roll servo](https://sonexpilots.org/t/sonex-b-dual-control-and-roll-servo/5778)
**Author:** [@Francis88](https://sonexpilots.org/u/Francis88)\ **Replies:** 4\ **Last updated:** [July 7, 2026, 11:10am UTC](https://sonexpilots.org/t/sonex-b-dual-control-and-roll-servo/5778 "2026-07-07T11:10:39Z")
Hi all, Does anybody know how to install the roll servo in a Sonex B with dual control ? Thanks Francis --- ## [Centre console in a Sonex B](https://sonexpilots.org/t/centre-console-in-a-sonex-b/5780)
**Author:** [@Francis88](https://sonexpilots.org/u/Francis88)\ **Replies:** 4\ **Last updated:** [July 6, 2026, 9:54pm UTC](https://sonexpilots.org/t/centre-console-in-a-sonex-b/5780 "2026-07-06T21:54:31Z")
In my introductory post, I described the state of my project and noted that I am adding a centre console to my Sonex B. And somebody asked me for pictures of my console. Here they are. I’m going to route the cables comin… --- ## [Sonex B Dual Controls](https://sonexpilots.org/t/sonex-b-dual-controls/5672)
**Author:** [@D-Captain](https://sonexpilots.org/u/D-Captain)\ **Replies:** 20\ **Last updated:** [May 13, 2026, 10:26pm UTC](https://sonexpilots.org/t/sonex-b-dual-controls/5672 "2026-05-13T22:26:00Z")
Hey everyone, it’s been a minute since I’ve posted. A lot has happened. In 2019 I bought Legacy Sonex 1083 from someone and found some very un-airworthy stuff going on. I spent a few years fixing the previous builder’s … --- ## [SONEX IS CLOSING IT'S DOORS](https://sonexpilots.org/t/sonex-is-closing-its-doors/5519)
**Author:** [@AlFromNY](https://sonexpilots.org/u/AlFromNY)\ **Replies:** 0\ **Last updated:** [March 27, 2026, 11:41pm UTC](https://sonexpilots.org/t/sonex-is-closing-its-doors/5519 "2026-03-27T23:41:05Z")
I wonder what the future will bring. I only have the TAILKIT! Damn! --- ## [Firewall accessories](https://sonexpilots.org/t/firewall-accessories/5454)
**Author:** [@CaptT](https://sonexpilots.org/u/CaptT)\ **Replies:** 4\ **Last updated:** [February 28, 2026, 3:21am UTC](https://sonexpilots.org/t/firewall-accessories/5454 "2026-02-28T03:21:46Z")
Does anyone have a sketch or drawing of preferred locations for battery box, gascolator, ignition solenoid, fuel line pass thru etc available? Jabiru 3300 planned. Any guidance is appreciated. --- ## [Upper Firewall angle F07-09](https://sonexpilots.org/t/upper-firewall-angle-f07-09/5399)
**Author:** [@CaptT](https://sonexpilots.org/u/CaptT)\ **Replies:** 0\ **Last updated:** [February 6, 2026, 12:23am UTC](https://sonexpilots.org/t/upper-firewall-angle-f07-09/5399 "2026-02-06T00:23:11Z")
I am hoping someone will share with me how they made decent bends on the B model F07-09 upper firewall angle. Also, prior experience with match drilling holes in tabs like these leaves me quivering! How did anyone manage… --- ## [Sonex B upper fire wall flange](https://sonexpilots.org/t/sonex-b-upper-fire-wall-flange/5330)
**Author:** [@CaptT](https://sonexpilots.org/u/CaptT)\ **Replies:** 1\ **Last updated:** [January 10, 2026, 3:27am UTC](https://sonexpilots.org/t/sonex-b-upper-fire-wall-flange/5330 "2026-01-10T03:27:55Z")
Can someone please tell me if the flange on the upper firewall points toward the engine or the cockpit when attached? I see to see it drawn both ways with no definitive comments as to which is which. Many thanx . . . yo… --- ## [Rudder pedal mount](https://sonexpilots.org/t/rudder-pedal-mount/5299)
**Author:** [@CaptT](https://sonexpilots.org/u/CaptT)\ **Replies:** 6\ **Last updated:** [January 2, 2026, 5:30pm UTC](https://sonexpilots.org/t/rudder-pedal-mount/5299 "2026-01-02T17:30:00Z")
Question for knowing builders . . . I was about to get started mounting my rudder pedals on the B. Plans call for SNB-C02-08 mounting block made from Delrin or phenolic. The phenolic included is the wrong dimension, and… --- ## [Gear leg to axle](https://sonexpilots.org/t/gear-leg-to-axle/5276)
**Author:** [@CaptT](https://sonexpilots.org/u/CaptT)\ **Replies:** 4\ **Last updated:** [December 29, 2025, 12:49pm UTC](https://sonexpilots.org/t/gear-leg-to-axle/5276 "2025-12-29T12:49:12Z")
I have no doubt it is difficult to explain but . . . can anyone provide some clarity on how exactly the toe in is achieved by use of spacers and straight edge per the plans? I simply cannot get a grasp on what lines up w… --- ## [Control stick taper pins](https://sonexpilots.org/t/control-stick-taper-pins/5208)
**Author:** [@CaptT](https://sonexpilots.org/u/CaptT)\ **Replies:** 2\ **Last updated:** [November 29, 2025, 7:07pm UTC](https://sonexpilots.org/t/control-stick-taper-pins/5208 "2025-11-29T19:07:33Z")
Wondering if someone can tell me why the Sonex B uses taper pins in the control stick attachment rather than a thru bolt. TS --- ## [Cowling Side-Exit Holes](https://sonexpilots.org/t/cowling-side-exit-holes/3385)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 3\ **Last updated:** [November 18, 2025, 12:55am UTC](https://sonexpilots.org/t/cowling-side-exit-holes/3385 "2025-11-18T00:55:53Z")
Cowling Side-Exit Holes Posted: Fri Jan 27, 2017 2:16 pm by NWade Would anyone out there with a B-model Sonex/Waiex be willing to post a couple of close-up pics of your cowling exits, and maybe provide some dimensions … --- ## [Uavionix TailbeaconX install](https://sonexpilots.org/t/uavionix-tailbeaconx-install/3552)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 8\ **Last updated:** [October 25, 2025, 8:29pm UTC](https://sonexpilots.org/t/uavionix-tailbeaconx-install/3552 "2025-10-25T20:29:20Z")
Uavionix TailbeaconX install Posted: Sun Nov 13, 2022 5:05 am by SP1 Like many people, I’m building a Sonex because it strikes the right balance between affordability and performance, with great emphasis on affordabili… --- ## [Fitting the Canopy](https://sonexpilots.org/t/fitting-the-canopy/5078)
**Author:** [@Badger830](https://sonexpilots.org/u/Badger830)\ **Replies:** 16\ **Last updated:** [October 21, 2025, 12:24am UTC](https://sonexpilots.org/t/fitting-the-canopy/5078 "2025-10-21T00:24:08Z")
Good Evening Everyone, I’m working on fitting and trimming the canopy on my B model Sonex right now and wanted to reach out to everyone and see if the bulges on the sides are normal or if my fitment procedures are off. … --- ## [Fuel tank vent line material](https://sonexpilots.org/t/fuel-tank-vent-line-material/4919)
**Author:** [@SNB0047](https://sonexpilots.org/u/SNB0047)\ **Replies:** 3\ **Last updated:** [July 29, 2025, 9:04pm UTC](https://sonexpilots.org/t/fuel-tank-vent-line-material/4919 "2025-07-29T21:04:49Z")
Is it absolutely necessary to use aluminum line for the vent? I am wondering if a good alternative way might be to use some sort of semi-rigid tubing (nylon or poly) just the same. Also, the plans say to put it inside t… --- ## [B model flap stops?](https://sonexpilots.org/t/b-model-flap-stops/4915)
**Author:** [@SNB0047](https://sonexpilots.org/u/SNB0047)\ **Replies:** 2\ **Last updated:** [July 29, 2025, 2:59pm UTC](https://sonexpilots.org/t/b-model-flap-stops/4915 "2025-07-29T14:59:00Z")
Does anyone have experience on whether or not adjustable flap stops are needed/used on the B model with the electric actuator? --- ## [Do I have a big problem here?](https://sonexpilots.org/t/do-i-have-a-big-problem-here/3573)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 0\ **Last updated:** [August 14, 2024, 5:00am UTC](https://sonexpilots.org/t/do-i-have-a-big-problem-here/3573 "2024-08-14T05:00:00Z")
Do I have a big problem here? Posted: Wed Aug 14, 2024 9:52 am by DWest Working on installing the leading edge of the left wing here. The skin came out of the box with an extra bend in it on the bottom that I did I did… --- ## [B aileron tip rib](https://sonexpilots.org/t/b-aileron-tip-rib/3571)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 0\ **Last updated:** [July 11, 2024, 5:00am UTC](https://sonexpilots.org/t/b-aileron-tip-rib/3571 "2024-07-11T05:00:00Z")
B aileron tip rib Posted: Thu Jul 11, 2024 4:52 pm by Capt T Sonex engineers must have had a bad day when they designed the aileron tip ribs. That’s the one with the goofy angles on it that is suppose to finish the e… --- ## [Rotax cooling system!](https://sonexpilots.org/t/rotax-cooling-system/3567)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 0\ **Last updated:** [July 10, 2024, 5:00am UTC](https://sonexpilots.org/t/rotax-cooling-system/3567 "2024-07-10T05:00:00Z")
Rotax cooling system! Posted: Wed Jul 10, 2024 8:47 pm by dboeshaar I’m excited about the factory announcement for the new cooling system for Rotax equipped Sonex kits! I’m a builder and not a designer. I feel the Rot… --- ## [Size of canopy box / crate?](https://sonexpilots.org/t/size-of-canopy-box-crate/1422)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 0\ **Last updated:** [July 2, 2024, 5:00am UTC](https://sonexpilots.org/t/size-of-canopy-box-crate/1422 "2024-07-02T05:00:00Z")
Size of canopy box / crate? Posted: Sat Jul 20, 2024 10:51 pm by Dave Wolfe I need to get a new canopy for my legacy sonex project and will be driving right thru Osh in a couple weeks. Is the canopy something that wil… --- ## [Dynon Pitot Mount (AN5812) Reinforcement](https://sonexpilots.org/t/dynon-pitot-mount-an5812-reinforcement/3572)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 0\ **Last updated:** [June 29, 2024, 5:00am UTC](https://sonexpilots.org/t/dynon-pitot-mount-an5812-reinforcement/3572 "2024-06-29T05:00:00Z")
Dynon Pitot Mount (AN5812) Reinforcement Posted: Sat Jun 29, 2024 4:31 pm by Badger830 Good Afternoon Everyone, I’m looking for some examples of how people have gone about installing a standard AN5812 pitot mount in t… --- ## [Instrument panel access](https://sonexpilots.org/t/instrument-panel-access/3565)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 0\ **Last updated:** [June 24, 2024, 5:00am UTC](https://sonexpilots.org/t/instrument-panel-access/3565 "2024-06-24T05:00:00Z")
Instrument panel access Posted: Mon Jun 24, 2024 7:35 pm by dboeshaar Greetings! Just a note about how I’ll be getting access to the instrument panel wiring. I have added two inspection plates to the glare shield. Fo… --- ## [Installing the Windshield on Sonex Model B](https://sonexpilots.org/t/installing-the-windshield-on-sonex-model-b/3566)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 0\ **Last updated:** [June 6, 2024, 5:00am UTC](https://sonexpilots.org/t/installing-the-windshield-on-sonex-model-b/3566 "2024-06-06T05:00:00Z")
Installing the Windshield on Sonex Model B Posted: Sat Jul 06, 2024 8:29 pm by dboeshaar I have been watching the One Week Wonder videos and see that the windshield was installed before the gas tank and glare shield. Y… --- ## [Rear spar WOES](https://sonexpilots.org/t/rear-spar-woes/1420)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 0\ **Last updated:** [May 29, 2024, 5:00am UTC](https://sonexpilots.org/t/rear-spar-woes/1420 "2024-05-29T05:00:00Z")
Rear spar WOES Posted: Wed May 29, 2024 11:08 am by Area 51% Took delivery of my kits about a year ago. I assembled the rear spars and put them into storage till a couple of days ago when the wing structures required t… --- ## [On to the Turtle Deck](https://sonexpilots.org/t/on-to-the-turtle-deck/3563)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 0\ **Last updated:** [April 25, 2024, 5:00am UTC](https://sonexpilots.org/t/on-to-the-turtle-deck/3563 "2024-04-25T05:00:00Z")
On to the Turtle Deck Posted: Thu Apr 25, 2024 6:46 pm by BobDz Is anyone else besides me bothered by the turtle deck skin being inside the aft fuselage side skin and creating a joint the can allow water in. Any rain o… --- ## [Tail light for Sonex-B](https://sonexpilots.org/t/tail-light-for-sonex-b/3574)
**Author:** [@ArchiveBot](https://sonexpilots.org/u/ArchiveBot)\ **Replies:** 0\ **Last updated:** [April 17, 2024, 5:00am UTC](https://sonexpilots.org/t/tail-light-for-sonex-b/3574 "2024-04-17T05:00:00Z")
Tail light for Sonex-B Posted: Wed Apr 17, 2024 7:08 pm by dboeshaar Greetings! Two things (kinda related) Thing 1 I need to get a taillight for my project. Nothing fancy. I got fancy with wing tip lights. Put in a… [Next page](https://sonexpilots.org/c/aircraft/sonex-b/11.md?page=1)