HP 120 Inline Twin test

Hirtenberger Patronenfabirk HP 120 Gold Cup Twin is seen very rarely. I bought used one for Bearcat and tested it. 12x8-3-balde: 7500 RPM - Dont know if it is a good value?

Category:

Autos & Vehicles

Tags:

• HP
• 120
• Twin
• RC
• engine

[TejasRCpilot]

so each cylinder fires oppositely or both fire together?

[deutec]

@TejasRCpilot

Hi, jes, each cylinder fires oppositely.

best regards

Hannes

[xKmotx]

Sounds awesome! Have never heard one run before. Are those exhaust headers leading into a muffler?

[deutec]

@xKmotx

SORRY! Today I saw your nice message. I try now to answer. - Yes the two pipes ends in the muffler. On underside are two samll pipes for the exhaustgas out. This engine has not enough power for F8F, so a OS 300 FT was mounted and flown. - HP120 was former times used in a spitfire. At this time (video) engine was without pump and did not hold power for some minutes (without cowling!). I thik with perry pump it may be usable.

Best regards

Hannes

[xKmotx]

@deutec Thank you for the reply. :)

[TejasRCpilot]

@deutec sounds beautiful

[4406chally]

I just love hp and webra engines.

I have 7 hp and 8 webras

[b1heqh54]

Oh Baby!!!