TechProAviation Merlin 100

{{Short description|Czech homebuilt aircraft}}

{{Use dmy dates|date=December 2022}}

{{Use British English|date=December 2022}}

{{Infobox aircraft begin

| name=Merlin 100

| image=G-CIWL (34453095955).jpg

| caption=Merlin HV-100

}}{{Infobox aircraft type

| type=Amateur-built aircraft

| national origin=Czech Republic

| manufacturer=TechProAviation

| designer=

| first flight=

| introduced=2011

| retired=

| status=In production (2015)

| primary user=

| more users=

| produced=

| number built=10 by 2013

| developed from=

| variants with their own articles=

}}

The TechProAviation Merlin HV 100 is a Czech amateur-built aircraft, designed and produced by TechProAviation of Olomouc. The aircraft is supplied as a kit for amateur construction.Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 123. WDLA UK, Lancaster UK, 2011. {{ISSN|1368-485X}}Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 82. Flying Pages Europe SARL, 2015. {{ISSN|1368-485X}}

Design and development

The Merlin 100 features a cantilever high-wing, a single-seat enclosed cockpit accessed via a single door on the fuselage righthand side, fixed tricycle landing gear with wheel pants and a single engine in tractor configuration.

The aircraft is made from matched-hole drilled sheet aluminum. Its {{convert|7.8|m|ft|1|abbr=on}} span wing has an area of {{convert|7.05|m2|sqft|abbr=on}} and mounts flaps. The standard engine used is the {{convert|35|hp|kW|0|abbr=on}} Verner JCV 360 twin cylinder four-stroke powerplant. Alternative engines include the {{convert|60|hp|kW|0|abbr=on}} HKS 700E four-stroke, {{convert|50|hp|kW|0|abbr=on}} Hirth F-23 and {{convert|64|hp|kW|0|abbr=on}} Rotax 582 two-stroke powerplants. The aircraft will be marketed as a kit only.{{cite web|url = http://techproaviation.cz/katalog-detail/letadla/merlin-100-ul?lang=en|title = Merlin 100 UL|access-date = 24 October 2012|last = TechProAviation|year = 2011|url-status = dead|archive-url = https://archive.today/20130210075934/http://techproaviation.cz/katalog-detail/letadla/merlin-100-ul?lang=en|archive-date = 10 February 2013}}

By mid-2011 only the prototype had flown, logging 100 hours of testing, These tests led to modifications; by November 2012 the prototype had gained a fin fillet and the mainwheel legs were slightly forward raked.{{cite book |title= Jane's All the World's Aircraft : development & production : 2016-17|last=Gunston |first=Bill |year=2016|publisher=IHS Global|isbn= 978-0-7106-3177-0 |pages=208–9}}

Operational history

By 2013 ten Merlins had been built. Flyaway prices, without tax, are engine dependent; the cheapest is the Verner-engined variant at €15,500 in 2015.

Variants

These are in production in late 2015:

;Merlin 100 UL

:Version for the Fédération Aéronautique Internationale microlight class, specification below. A tailwheel version was flown in April 2012 and is available.

;Merlin 100 ML

:Lightened version for the German {{convert|120|kg|lb|0|abbr=on}} class{{cite web|url = http://techproaviation.cz/katalog-detail/letadla/merlin-100-ml?lang=en|title = Merlin 100 ML|last = TechProAviation|date = n.d.|url-status = dead|archive-url = https://archive.today/20130210074744/http://techproaviation.cz/katalog-detail/letadla/merlin-100-ml?lang=en|archive-date = 10 February 2013}} It has reduced dimensions, with a span of {{convert|6.40|m|ftin|abbr=on}} and length of {{convert|5.12|m|ftin|abbr=on}}, a tailwhell undercarriage and is powered by a Polini motorcycle engine. It first flew in late March 2014.

;Merlin Mikro

:Version with conventional landing gear for the European 120 kg class. Equipped with a Thor 200 powerplant.

;Rotax

:As 100UL but with a Rotax 582 engine which gives it a speed of {{convert|240|km/h|mph kn|abbr=on}}. An amphibious floatplane version is planned.{{Citation needed|date=November 2016}}

Specifications (Merlin 100 UL)

{{Aircraft specs

|ref=Bayerl and TechProAviation

|prime units?=met

|genhide=

|crew=one

|capacity=

|length m=5.3

|length ft=

|length in=

|length note=

|span m=7.8

|span ft=

|span in=

|span note=

|height m=2.12

|height ft=

|height in=

|height note=

|wing area sqm=7.05

|wing area sqft=

|wing area note=

|aspect ratio=

|airfoil=

|empty weight kg=150

|empty weight lb=

|empty weight note=

|gross weight kg=300

|gross weight lb=

|gross weight note=

|fuel capacity={{convert|50|L}}

|more general=

|eng1 number=1

|eng1 name=Verner JCV 360

|eng1 type=twin cylinder, air-cooled, four stroke aircraft engine

|eng1 kw=

|eng1 hp=35

|prop blade number=2

|prop name=composite

|prop dia m=

|prop dia ft=

|prop dia in=

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|max speed kmh=

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|cruise speed kmh=160

|cruise speed mph=

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|stall speed kmh=62

|stall speed mph=

|stall speed kts=

|stall speed note=flaps down

|never exceed speed kmh=185

|never exceed speed mph=

|never exceed speed kts=

|never exceed speed note=

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|ceiling m=

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|climb rate ftmin=

|climb rate note=

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|lift to drag=

|wing loading kg/m2=42.5

|wing loading lb/sqft=

|wing loading note=

|power/mass=

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}}

References

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