OS91 SZ-H oder OS91 SZ-H PS Hyper

[ferry]

AW: OS91 SZ-H oder OS91 SZ-H PS Hyper

hai tom
my opinion is that it has no real advantage for me.
they advertise with the claim that it runs better and more consistant , even with a allmost emppty tank.
maybe hardcore specialists can judge about that , i do not notice that . i only do mild 3d , so.
it started sweating very soon after it was new , and i read a lot of people saying they have had the same , that is not ok in my opinion !
i own a rz91 in my mpxl , and it runs beautifull , and was 40 euro cheaper :]
regards and gruss aus holland , ferry

[dl7uae]

AW: OS91 SZ-H oder OS91 SZ-H PS Hyper

Well, I think I understand, Ferry. Thanks for the explanation. All I've read about this pump version upto know didn't sound directly positive - so you're bringing out.

Tom

[ferry]

AW: OS91 SZ-H oder OS91 SZ-H PS Hyper

@tom
tom , i think the engine is ok , it runs good
it is the fuel leaking that i really hate , and i read more people saying that they have that aswell.

the 91rz that is in my other heli runs the same good, i cannot discover any difference except in price .
i cannot judge about the running in hard 3d , becouse i cannot do that , maybe hardcore 3d pilots love it and think it runs better with pump .
vieleich any 3d artists want to answer us this question ?

gruss ferry