Sonex Highwing’s 2nd Flight Brings Encouraging Performance | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-07.07.25

Airborne-NextGen-07.08.25

AirborneUnlimited-07.09.25

Airborne-FlightTraining-07.10.25

AirborneUnlimited-07.11.25

Fri, Jul 11, 2025

Sonex Highwing’s 2nd Flight Brings Encouraging Performance

80% Throttle Gives Good Climb And Impressive Level Flight Speeds

Sonex Aircraft’s first venture into high-wing design aircraft performed its second test flight just after the 4th of July weekend and flying at various throttle settings – but limited to 80% per UL engine break-in instructions – yielded some solid performance during its 20-minute flight over Wittman Regional Airport (KOSH).

Sonex Advisory Board member and test pilot Joe Norris put the aircraft through its paces as it orbited the airport at 2500 feet and logged a very successful flight. The aircraft climbed very well at an average 1200 fpm at 80% throttle, and showed good level flight speeds with 61% throttle giving 150 kts. Engine temps were again within limits.

After the maiden flight on June 30, Sonex fixed the nagging door latch, adjusted the control rigging, and installed the wheel pants and gear leg fairings. Most of those contributed more or less to improved aerodynamics as flight testing will continue to gather data for performance specs that will be summarized in the next few weeks before AirVenture.

The aircraft is powered by a Belgian 130 hp UL Power UL350iS engine. It is a four-cylinder horizontally opposed, 4-stroke UL350I engine modified to a higher compression ratio and runs on Avgas or Mogas 97/98. Sonex also has options for the AeroVee, Jabiru 330, and Rotax 9-series engines available.

The new high-wing model will be available in either a tailwheel or tricycle gear configuration, and also has new utility category specs as well as aerobatic and limited aerobatic specs. Interchangeable wing tips are available for different span configurations. The Sonex Highwing aircraft is designed to take advantage of the new FAA MOSAIC rules for light sport aircraft.

FMI:  www.sonexaircraft.com/

Advertisement

More News

Airborne 07.11.25: New FAA Boss, New NASA Boss (Kinda), WB57s Over TX

Also: ANOTHER Illegal Drone, KidVenture Educational Activities, Record Launches, TSA v Shoes The Senate confirmed Bryan Bedford to become the next Administrator of the FAA, in a ne>[...]

Airborne-Flight Training 07.10.25: ATC School, Air Race Classic, Samson School

Also: Sully v Bedford, Embraer Scholarships, NORAD Intercepts 11, GAMA Thankful Middle Georgia State University will be joining the Federal Aviation Administration’s fight ag>[...]

Airborne Affordable Flyers 07.03.25: Sonex HW, BlackShape Gabriel, PRA Fly-In 25

Also: DarkAero Update, Electric Aircraft Symposium, Updated Instructor Guide, OSH Homebuilts Celebrate The long-awaited Sonex High Wing prototype has flown... the Sonex gang tells >[...]

Airborne-Flight Training 07.10.25: ATC School, Air Race Classic, Samson School

Also: Sully v Bedford, Embraer Scholarships, NORAD Intercepts 11, GAMA Thankful Middle Georgia State University will be joining the Federal Aviation Administration’s fight ag>[...]

Rick Kenin New Board Chair of VAI

30-Year USCG Veteran Aviator Focusing On Member Benefits The Vertical Aviation International Board of Directors announced its new leadership officers in April, and all began their >[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2025 Web Development & Design by Pauli Systems, LC