Engines

 

We have two versions of HPH 304S with engine. One with turbojet engine, which can be used to return back home in case of bad meteo conditions. This variant is called 304SJ.

Second variant - 304SM - uses piston engine, and is able to also peform take off.

304SJ

Turbojet engine has many advantages comparing to piston engines with propellers:

1. Weight and simple construction.

2. Constant power at all speeds.

3. Low drag - in fact similar to open undercarriage.

We are using turbojet engine TBSJ40 for HPH 304SJ glider.

 

Max. Thrust
 420 N
Rated Max. Thrust
 400 N
Thrust to Weight Ratio
 10,5                                                                     
Max. Diameter 156 mm
Length                                               
320 mm                                   
Weight                                          
4 Kg
Max. Temperature red line     
720 °C
Pressure Ratio
 3.8
Turbine Single Stage Axial
Control Full Authority Digital

 

 

304 MS

Self start variant of 304S with system from Binder flugmotorenbau GMBH.

Technical data (Solo 2625-01)

 

Power ca 38 KW / 52 hp
max. Continuous  rpm 6250 l/min
Carburator 1 Mikuni
Compression 9,5 : 1
Ignition Ducati, Bosch W5 AC
Reduction gear Toothed belt
Fuel consumption 21,5 l/h
Weight 23 kg
Alternator 12 V  150 W
Lubricant 1:50 Autosuper-2-stroke eng. oil
Propeller pillar Carbon fibre

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