Flying Machines FM301 Stream

{{Short description|Czech ultralight trike}} {{Use dmy dates|date=December 2022}} {{Use British English|date=December 2022}}  {{Infobox aircraft | name = FM301 Stream | logo = | logo_size = | image = | alt = | caption = | long_caption = | other_names = | aircraft_type = [[Ultralight trike]] | aim = | outcome = | related = | national_origin = [[Czech Republic]] | manufacturer = [[Flying Machines s.r.o.]] | design_group = | designer = | builder = | issuer = | status = In production (2013) | 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 '''Flying Machines FM301 Stream''', is a [[Czech Republic|Czech]] [[ultralight trike]], designed by and produced by [[Flying Machines s.r.o.]] of [[Rasošky]]. The aircraft is supplied as a complete ready-to-fly-aircraft.<ref name="WDLA11">Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 212. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X</ref>

==Design and development== The FM301 was designed to comply with the [[Fédération Aéronautique Internationale]] [[microlight]] category, including the category's maximum gross weight of {{convert|450|kg|lb|0|abbr=on}}. It features a [[Flying wires|cable-braced]] [[hang glider]]-style [[high-wing]], weight-shift controls, a two-seats-in-[[tandem]] open cockpit with a [[cockpit fairing]], [[tricycle landing gear]] and a single engine in [[pusher configuration]].<ref name="WDLA11" />

The aircraft is made with a [[monocoque]] [[fibreglass]] carriage, with its double surface wing covered in [[Dacron]] sailcloth. Its {{convert|9.5|m|ft|1|abbr=on}} span Quasar wing is supported by a single tube-type [[kingpost]] and uses an "A" frame weight-shift control bar. The powerplant is a twin cylinder, air-cooled, [[four-stroke]], [[dual-ignition]] {{convert|60|hp|kW|0|abbr=on}} [[HKS 700E]] engine, with the [[two-stroke]] {{convert|64|hp|kW|0|abbr=on}} [[Rotax 582]] and the four cylinder, air and liquid-cooled, [[four-stroke]], [[dual-ignition]] {{convert|80|hp|kW|0|abbr=on}} [[Rotax 912UL]] or {{convert|100|hp|kW|0|abbr=on}} [[Rotax 912ULS]] engines optional. With the HKS powerplant the aircraft has an empty weight of {{convert|175|kg|lb|0|abbr=on}} and a gross weight of {{convert|450|kg|lb|0|abbr=on}}, giving a useful load of {{convert|275|kg|lb|0|abbr=on}}. With full fuel of {{convert|42|L}} the payload is {{convert|245|kg|lb|0|abbr=on}}.<ref name="WDLA11" />

The unusual fibreglass structural construction allows internal fuel tanks and also permits a large unobstructed baggage area. The FM301 also has a unique wing mast system that allows the wing to be assembled and mounted on the carriage single-handedly.<ref name="WDLA11" />

==Specifications (FM301) == {{Aircraft specs |ref=Bayerl and Flying Machines<ref name="WDLA11" /><ref>{{cite web|url=http://www.flyingmachines.cz/_english/fm301/ |title=FM301 |publisher=FlyingMachines.cz |date= |accessdate=2013-07-12}}</ref> |prime units?=met  |genhide=

|crew=one |capacity=one passenger |length m= |length ft= |length in= |length note= |span m=9.5 |span ft= |span in= |span note= |height m= |height ft= |height in= |height note= |wing area sqm=15.4 |wing area sqft= |wing area note= |aspect ratio= |airfoil= |empty weight kg=175 |empty weight lb= |empty weight note= |gross weight kg=450 |gross weight lb= |gross weight note= |fuel capacity={{convert|42|L}} |more general=  |eng1 number=1 |eng1 name=[[HKS 700E]] |eng1 type=twin cylinder, air-cooled, [[four stroke]] [[aircraft engine]] |eng1 kw= |eng1 hp=60

|perfhide=

|max speed kmh=135 |max speed mph= |max speed kts= |max speed note= |cruise speed kmh=100 |cruise speed mph= |cruise speed kts= |cruise speed note= |stall speed kmh=52 |stall speed mph= |stall speed kts= |stall speed note= |never exceed speed kmh=140 |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= |roll rate= |glide ratio=9:1 |climb rate ms=6 |climb rate ftmin= |climb rate note= |time to altitude= |sink rate ms= |sink rate ftmin= |sink rate note= |lift to drag= |wing loading kg/m2=29.2 |wing loading lb/sqft= |wing loading note= |power/mass= |thrust/weight= |more performance= |avionics= }}

==References== {{reflist}}

==External links== *{{Official website|http://www.flyingmachines.cz/_english/fm301/}} {{Flying Machines aircraft}}

[[Category:2000s Czech sport aircraft]] [[Category:2000s Czech ultralight aircraft]] [[Category:Single-engined pusher aircraft]] [[Category:Ultralight trikes]]