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ALLEMAGNE

BMW 8025

BMW Triebwerkbau GmbH, Munchen-Allach

BMW 8025 small turbojet engine developped by BMW Triebwerkbau GmbH., Munich Allach, is based on the company's BMW 6002 portable gas turbine powerplant introduced in 1959.

The 8025 has a dry weight of 77 lb. Takeoff thrust is approximately 79 lb. which, without any change in basic engine weight and dimensions, will be increased to about 93 lb. 

The engine is fitted with an electric starter and operates on any standard fuel, but for economy and safety the use of light fuel or diesel oil is recommended. Fuel also is used for lubrification. 

Prototype of the BMW 8025 was shown for the first time at the 1960 Hanover Air Show. 8025 had proved most successful installed in the Allgaier H.30TS.

Caractéristiques BMW 8025

ManufacturerBMW Triebwerkau Gmbh
Initial testing1959
Certification 
TypeCentrifugal-flow turbojet
Nb. built 
CompressorSingle stage centrifugal 
TurbineSingle stage
Combustion chamberSingle annular 

Dimensions

Width450 mm17.72 in
Height450 mm17.72 in
Lenth692.5 mm27.24 in

Weight

Dry40 kg88.2 lb
Equipped kglb

Performances

Max rotor r.p.m45 000  
Max Idle r.p.m  
Thrust at max36 kgp79.4 lbs
Continuous thrust33 kgp72.8 lbs
Thrust at idlekglb
Pressure ratio at maxkg/slb/sec
Max flowkg/slb/sec
Max continue EGTdeg.Cdef.F

Consumption

Fuel Consumption (t.o)kg/hrlb/hr
Specific fuel consumption  
ALLEMAGNE

BMW 8026

BMW Triebwerkbau GmbH, Munchen-Allach

BMW 8026 Envisaged chiefly as a means of making gliders and  sailplanes independent of winches or tugs, the 8026 turbojet weighs 84 lb. and consumes 4.4 gal of diesel oil in 25 min. 

BMW suggested 15 min for take-off and climb to 6,600 ft, there after soaring with 10 min power always available should lift be absent.

Electric starting is provided for operation from the cockpit, lubrication is effected by adding oil to the fuel, and BMW claimed that "in service no maintenance is necessary except refuelling."

BMW 8026 Technical data

ManufacturerBMW Triebwerkau Gmbh
Initial testing1960
Certification 
TypeCentrifugal-flow turbojet
Nb. built 
CompressorSingle stage, centrifugal 
TurbineSingle stage, radial
Combustion chamberSingle annular 

Dimensions

Width380 mm14.96 in
Height420 mm16.54 in
Lenth600 mm23.62 in

Weight

Dry38 kg84 lb
Equipped kglb

Performances

Max rotor r.p.m45 000  
Max Idle r.p.m  
Thrust at max50 kg110 lb
Thrust at idlekglb
Pressure ratio at maxkg/slb/sec
Max flowkg/slb/sec
Max continue EGTdeg.Cdef.F

Consumption

Fuel Consumption (t.o)52 kg/hr115 lb/hr
Specific fuel consumption