RcNorth

I'm currently flying with an OS32, can I replace it with an OS 46 without any other upgrades?

I would guess that the mount and probably the fan would need to be replaced, but what about the blades, boom, gear ratio etc?

Thanks

Dean

TVAILLANCOURT

Hey Dean.AFter you left A guy showed up with a Raptor 30 with a OS 50 in it.He did nothing else.I asked him about changing the gears, boom,belt, and blades but he said all he did was adjust the throttle curves and pitch curves to tame it.When did you get a Raptor?

pietermx

However, you'll need a new engine mount. It's also a good idea to upgrade the blades & tailboom/taillinkage/drive belt (600mm blades). There is no need to upgrade the gears, but it is an option....

TVAILLANCOURT

AH ya I forgot he did change the mount and fan .I don't think you are the same Dean that I know from Calagary.Are you the Vario rep I meet in Strathmore?

RcNorth

Hi TVAILLANCOURT, we may have met in Strathmore, but I'm not the Vario rep.

I was set-up about 3 tables down from the kiddie pool (hovering area). If you were there on Sunday, I'm the guy who had an engine failure and did my first very poor auto onto the road.

RcNorth

I know that if you go to a 50 you will need to upgrade the boom, belt etc. but I was hoping to simply upgrade the engine, mount and fan and keep the rest stock.

Dean

pietermx

You can keep the rest stock, but it is not suggested... You'll not be able to use the power you get from your engine.

Another suggestion, take the OS .50 SX-H, NOT the .46 FX-H (.46 FX-H stock carb is not well designed)

Hitch-Hiker

The OS 46, while there have been many that like them. They are not the greatest engine in the world. Also, as mentioned, if you just drop in the bigger engine with no other changes, you will be overpowered and would almost have to run a governor. If you do this, I would highly recomment the 8.5-1 gear change.

Might I suggest a 39 sized engine. There are a couple available and it is a direct bolt in replacement.

evan-RCU

You will need to change the gear ratio, the .46 runs at a lower RPM.......

RcNorth

I was hoping to keep the costs of the upgrade down, but it looks like that is not a great option.

I fly at 3500 ft and would like something with a bit more power. I guess I'll look at the 39's or maybe upgrade to a Raptor 60.

Of the 39's that are out there, what is recommended?

Thanks

Dean

flmgrip

My Feedback: (2)

go R60, it's a completely different pair of shoes... much more steady, and quite a decent value for that money...