Aerospool WT9 Dynamic

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WT9 Dynamic
Role Ultralight aircraft and Light-sport aircraft
National origin Slovakia
Manufacturer Aerospool
Status In production
Number built 950 (2001-2024)[1]
Variants Aerospool WT10 Advantic

The Aerospool WT9 Dynamic is a Slovak ultralight and light-sport aircraft, designed and produced by Aerospool of Prievidza. The aircraft is supplied as a complete ready-to-fly-aircraft.[2][3]

Design and development[edit]

The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight rules, US light-sport aircraft rules and UK BCAR Section "S". It features a cantilever low-wing, a two-seats-in-side-by-side configuration enclosed cockpit, fixed or retractable tricycle landing gear and a single engine in tractor configuration.[2][3][4]

The aircraft is made with carbon fibre sandwich construction. The cockpit width is 1.15 m (45 in). Standard engines available are the 100 hp (75 kW) Rotax 912ULS, the Rotax 912iS[5] and the 115 hp (86 kW) Rotax 914 four-stroke powerplants. A glider towhook is optional equipment.[2][3][6]

The design has been developed into a three to four seat aircraft, the Aerospool WT10 Advantic.[2]


Aerospool WT9 Dynamic with retractable gear
Microlight version
Base model with gross weight of 450 kg (992 lb) and 75 litres (16 imp gal; 20 US gal) fuel capacity for the European microlight category[2][3]
LSA version
Model with gross weight of 600 kg (1,323 lb) and 126 litres (28 imp gal; 33 US gal) fuel capacity for the US light-sport aircraft category. Standard empty weight is 300 kg (661 lb), useful load 300.5 kg (662 lb), range 1,397 km (868 mi).[7]
Dynamic Club
EASA Type Certified Model in Restricted airworthiness category to meet Certification Specification CS-LSA, two-seats with fixed landing gear and powered by a Rotax 912 ULS2.[8]
Dynamic GTi

LTF-UL German certified. Cruise at 167KTAS with retractable gear or 156KTAS with fixed gear. Powered by the 141hp Roxtax 915iS. The Rotax 916 160hp version is currently under testing.

Specifications (WT9 Dynamic European microlight version)[edit]

Aerospool WT9 Dynamic in flight
Aerospool WT9 Dynamic with fixed landing gear

Data from Bayerl, Tacke and Aerospool[2][3][6]

General characteristics

  • Crew: two
  • Capacity: one passenger and one pilot
  • Length: 6.40 m (21 ft 0 in)
  • Wingspan: 9.00 m (29 ft 6 in)
  • Height: 2 m (6 ft 7 in)
  • Wing area: 10.35 m2 (111.4 sq ft)
  • Empty weight: 350 kg (772 lb)
  • Gross weight: 600 kg (1,323 lb) MTOW depends on certification
  • Fuel capacity: 75 litres (16 imp gal; 20 US gal) standard, 125 litres (27 imp gal; 33 US gal) optional
  • Powerplant: 1 × Rotax 915iS four cylinder, liquid and air-cooled, four stroke, 105 kW (141 hp)


  • Cruise speed: 309 km/h (192 mph, 167 kn)
  • Stall speed: 65 km/h (40 mph, 35 kn)
  • Never exceed speed: 330 km/h (210 mph, 180 kn)
  • Range: 1,600 km (990 mi, 860 nmi)
  • Rate of climb: 10 m/s (2,000 ft/min)


  1. ^ Reinhold, Lars (May 25, 2020). "Aerospool: 700. WT-9 ausgeliefert".
  2. ^ a b c d e f Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, pages 22 and 94. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  3. ^ a b c d e Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 22. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  4. ^ Experimental Aircraft Association (2012). "EAA's Listing of Special Light-Sport Aircraft". Archived from the original on 28 February 2014. Retrieved 23 April 2012.
  5. ^ Aerospool (23 March 2012). "WT9 Dynamic Maiden Flight With Rotax 912 iS". Archived from the original on 28 December 2013. Retrieved 13 May 2012.
  6. ^ a b Aerospool (2009). "Dimensions and weights". Archived from the original on 11 August 2014. Retrieved 25 December 2013.
  7. ^ Aerospool, WT9 Dynamic Owner's Manual
  8. ^ "EASA Type Certificate A.644 for WT Dynamic LSA" (PDF). European Aviation Safety Agency. 31 August 2017.

External links[edit]