Brock Avion

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title: "Brock Avion" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["1980s-united-states-ultralight-aircraft", "homebuilt-aircraft", "ken-brock-aircraft", "single-engined-pusher-aircraft"] description: "American homebuilt aircraft" topic_path: "geography/united-states" source: "https://en.wikipedia.org/wiki/Brock_Avion" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary American homebuilt aircraft ::

::data[format=table title="Infobox aircraft"]

Field	Value
name	Avion
aircraft_type	Ultralight aircraft
national_origin	United States
manufacturer	Ken Brock Manufacturing
status	Production completed
::

| name = Avion | logo = | logo_size = | image = | alt = | caption = | long_caption = | other_names = | aircraft_type = Ultralight aircraft | aim = | outcome = | related = | national_origin = United States | manufacturer = Ken Brock Manufacturing | design_group = | designer = | builder = | issuer = | status = Production completed | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = | introduction = | retired = | first_flight = | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = The Brock Avion () is an American ultralight aircraft that was designed and produced by Ken Brock Manufacturing, a company usually noted for its gyroplanes. The Avion was supplied as a kit for amateur construction.

Design and development

The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 254 lb. The Avion has a standard empty weight of 240 lb. The Avion features a strut-braced high-wing, single-seat, open cockpit, single pusher engine configuration, and is equipped with tricycle landing gear.

The aircraft is made from bolted together aluminum tubing, with the wing ribs constructed from stamped aluminum. The wing and tail covering is Dacron sailcloth. Its 34 ft span wing is supported by "V" lift struts. The tail is mounted to a straight aluminum tube that passes above the pusher propeller. Both the elevator and rudder are all-flying surfaces; the ailerons are full-span. The standard engine fitted was the Rotax 277 of 28 hp. The fuel tank was integral with the pilot's seat and common with Brock's gyroplane designs. The pilot sits on the seat in the open air, with no windshield. The landing gear is of tricycle configuration and features a steerable nosewheel and hydraulic brakes. The Avion can be assembled for flight in 30 minutes.

The Avion underwent a complete engineering stress analysis by Bob Hovey, the designer of the Hovey Delta Bird and Hovey Whing Ding II. The Avion was designed to +6/-4g.

Specifications (Avion)

|ref=Cliche |prime units?=imp General characteristics

|genhide=

|crew=one |capacity= |length m= |length ft= |length in= |length note= |span m= |span ft=34 |span in=0 |span note= |height m= |height ft= |height in= |height note= |wing area sqm= |wing area sqft=145 |wing area note= |aspect ratio= |airfoil= |empty weight kg= |empty weight lb=240 |empty weight note= |gross weight kg= |gross weight lb=455 |gross weight note= |fuel capacity=5 u.s.gal |more general= Powerplant

|eng1 number=1 |eng1 name=Rotax 277 |eng1 type= |eng1 kw= |eng1 hp=28

|prop blade number= |prop name= |prop dia m= |prop dia ft= |prop dia in= |prop note=

Performance

|perfhide=

|max speed kmh= |max speed mph=52 |max speed kts= |max speed note= |cruise speed kmh= |cruise speed mph=48 |cruise speed kts= |cruise speed note= |stall speed kmh= |stall speed mph=27 |stall speed kts= |stall speed note= |never exceed speed kmh= |never exceed speed mph= |never exceed speed kts= |never exceed speed note= |range km= |range miles= |range nmi= |range note= |endurance= |ceiling m= |ceiling ft= |ceiling note= |g limits=+6/-4 |roll rate= |glide ratio= |climb rate ms= |climb rate ftmin=700 |climb rate note= |time to altitude= |lift to drag= |wing loading kg/m2= |wing loading lb/sqft= |wing loading note= |power/mass= |thrust/weight= |more performance= |avionics=

|see also= |related= |similar aircraft= |lists=

References

References

1. Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page E-3. Cybair Limited Publishing, 2001. {{ISBN. 0-9680628-1-4
2. Berger, Alain-Yves and Norman Burr: ''Berger-Burr's Ultralight and Microlight Aircraft of the World'', Volume 16, page 173. Haynes Publishing Group, 1983. {{ISBN. 0-85429-390-6

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