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CZECH REPUBLIC

Blanik L-13 TJ

LET (Aircraft Industrie a.s.)

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The L-13 (TJ) is an experimental motor glider fitted with a jet engine TJ100 with take-off thrust 1,0 kN from PBS (První brněnská strojírna Velká Bíteš). It was used as a single-seat motor glider.

At least 2 L-13 has been converted to TJ version, the first one OK-1840 (cn 172016) fitted with a TJ100C and the second OK-3801 (cn 172602)with a TJ100A. Both were used by PBS for TJ100 experimetal tests.

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Let L-13 Blanik OK-3801 (cn 172602) Glider with turbojet engine TJ100C, in Jihlava (LKJI), Czech Republic, September 16, 2007. With courtesy of the photograph Daniel Rybka.
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Let L-13 Blanik OK-3801 (cn 172602) Glider with turbojet engine TJ100C, in Jihlava (LKJI), Czech Republic, September 16, 2007. With courtesy of the photograph Jiri Mikulas.
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TJ 100 on Blanik, With courtesy of PBS.
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Blanik L-13 TJ technical data

ManufacturerLET
Modified byPBS
TypeJet glider
First flight2006
Nb. built2 with TJ-100
Crew2

Power plant

EnginePBSTJ-100
Count1
TypeTurbojet
Max ratings  100 kg225 lbs

Dimensions

Span16,20 m53.15 ft
Length8,40 m27.56 ft
Height2,08 m6.82 ft
Areas19,20 m²204.7 ft²

Weights 

Empty292 kg644 lb
Crewkglb
Fuelkglb
Enginekglb
Waterballast Kglb
Max. permissible 500 kg1102 lb

Performances 

Vne - Max. speed253 km/mph
Vno - Max. speed in operationkm/hmph
Vs - Stall speedkm/hmph
Max. rate of climb0,82 m/s161 ft/min
Service ceilingmft
Rangekmmiles
Best gliding ratio28:1
Landing distance from 50 ftmyds
Take off distance to 50 ftmyds
G limits+-
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Let L-13 Blanik OK-1840 (cn 172016) Glider with turbojet engine TJ100A, in Jihlava (LKJI), Czech Republic, September 11, 2010. With courtesy of the photograph Daniel Rybka.
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On the first L13 TJ, OK-1840, the nozzle is divided in 2 exhaust. The vertical stabilizer is protected from dangerous jet hot stream.
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TJ 100 on Blanik, With courtesy of PBS.
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