If I was to go electric .....

[trillian]

The only significant difference between the Raptor 30 and 50 is the length of the boom, main blades and the gear ratio. And we're only talking about the difference between 550mm and 600mm blades but you do not have to use 600mm blades to run a 50 engine.

To put a 50 engine in would just require the engine mount and fan/hub. (I looked into fitting a TT46 on my Raptor when I rebuilt it after a bad crash because I have this 46 that was on another heli but the Raptor 30 fan would not fit over the bottom part of the shaft on the TT46 and actually it could be drilled out to fit if I had the facility to do that. Then the engine mount would most likely need changing as well to fit the longer engine.)

It would then work, however, if the 50 engine revs a bit lower then a change in gearing may help get the headspeed back where it should be, but it could certainly be tried first because if most of your flying is below the peak revs of the 30 engine then the 50 may run happily at a similar speed, just that you'd need to set the pitch curve appropriately to keep the engine under the right amount of load.

That's all cheap stuff (engine mount, fan, drive gear).

To then get it to a Raptor 50 specs would require a longer boom / belt and 600mm blades.

Regarding the OS37, I have one in my Raptor and it runs very well and has been trouble-free.

If it was me, since I really like flying the Raptor, I'd either find an OS37 and then sell the TT39 or put an OS50 SX in there. And I would start out changing as little as possible.
Yeah, you could find a 2nd hand Raptor 50 airframe but then you'd have to put all the electrics and set everything up again.

Do you mean convert it to a Raptor 50 or run the .50 engine in the 30 sized machine ?

I do have the OS37 engine that was replaced by the TT39 in my heli by the previous owner but is has no piston ring and I presume it was fubar'd since he replaced it with the TT39.

I could rebuild the OS37 with new bearings, rings etc but it could be no good anyway...

my only 'issue' with going electric is having enough lipos to make a trip to the field worth while but then that's part of the electric thing.

[mark_w]

I converted my Raptor 30 to a 50 after my TT39 died. It was very easy to do and I used the oppertunity of having the heli in bits to give it a good check over.

The reason I went for the upgrade is so I could keep costs down, but still have an engine that i could then put in a Trex 600 once i get some more funds

[GravityKills]

BTW my main issue with large electrics is that you really don't want to crash them. Even if it doesn't burst into flames, quality LiPos get expensive. Oh yeah.
It feels so miserable to dump a €100+ pack only because once cell got a scratch that punctured the foil.
But, you need nitro for a proper chicken-dance

[trillian]

'Just to add regarding the OS37.

I have a Zimmerman pipe and my OS37 has been very reliable, starts easy, runs smooth etc. But IMHO it really needs a bit more power. Even if you match the throttle and pitch curves as closely as possible the problem arises in the difference bwteeen the load at rest or descending / FF vs pulling some G's.

Sooooo, I am hoping the revlock 30 will solve this problem by being able to adjust the collective to prevent bogging the engine. I am hoping also that it will reduce the need to ride the throttle so much.

[p4ddy]

Get a Logo 500 sorry i just had to say it. If you have 3-4 6s packs & 5-8 for a 450 then whilst your waiting for a 6s to charge you can fly the 450. If you have 2 or 3 chargers you can fly for ages. Plus you never have to bother driving miles to a club field (without noise restrictions) just to fly a nitro.

Apart from that what the nitro guys says sounds a good choice with the .50 engine.

[Farmer Giles]

Well I've decided to strip the spare OS37 I got with my Raptor and to my untrained eye it looks OK. I will replace the bearings and it needs a piston ring but still should be fairly cheap to get it going and it will answer all the questions / issues I have around the TT39...

thanks everyone.

[Birdie4x4]

Stick with the Raptor, my 30 settings havent been touched for 12 months and still running well, ( after the normal regular rebuilds)

[Farmer Giles]

Stick with the Raptor, my 30 settings havent been touched for 12 months and still running well, ( after the normal regular rebuilds)

If I can get it flying nicely I will...

but it's rapidly approaching the last chance saloon....

[3dbasher]

if the machine needs anything bigger than 4s forget it it isn't practical on flight time, charging time and cost vs a nitro

[moonmanflyer]

Sorry for the late reply on this, only just realised what it was about.
Yes mine is now stripped, in fact all i have left is the kit with both canopies, 3 cyclic servos and the scorpion motor, i can cut a deal if you are interested, pm me if you are.
As for performance is in a different league than a raptor 30, is a real 3d machine not a sports flyer, and was one hell of a more capable machine.
The only prob i had with it was a few stripped main gears, i have since found out why i was having probs and it was my own fault, i was not setting the high point for the mesh.
And on the last gear i had it was fine as i did it properly.
Batteries are expensive yes and you do have to allow foir the fact that they can take over a hour to charge at the field.
The reason i got rid , or am getting rid of mine is it is just to big to fly down the park so have a 450 pro on the way.
The good thing about outrage is the parts, they are as cheep as align and they do fly very acurately.
Logos are also very good i hear but i don't like the look of them and the parts are expensive so thats the reason i got the 550.

[GravityKills]

BTW my Outrage 550 packs, Hyperion G3, usually charge in 15 to 20 minutes.
In a typical afternoon at the field, I don't even use all the flight time I could get, with three flight packs and 2x2 chargers (I need two for one 8s pack).

[Farmer Giles]

Sorry for the late reply on this, only just realised what it was about.
Yes mine is now stripped, in fact all i have left is the kit with both canopies, 3 cyclic servos and the scorpion motor, i can cut a deal if you are interested, pm me if you are.
As for performance is in a different league than a raptor 30, is a real 3d machine not a sports flyer, and was one hell of a more capable machine.
The only prob i had with it was a few stripped main gears, i have since found out why i was having probs and it was my own fault, i was not setting the high point for the mesh.
And on the last gear i had it was fine as i did it properly.
Batteries are expensive yes and you do have to allow foir the fact that they can take over a hour to charge at the field.
The reason i got rid , or am getting rid of mine is it is just to big to fly down the park so have a 450 pro on the way.
The good thing about outrage is the parts, they are as cheep as align and they do fly very acurately.
Logos are also very good i hear but i don't like the look of them and the parts are expensive so thats the reason i got the 550.

thanks for the reply. I am sure the Outrage is way more capable than I am, that applies for most helis TBH LOL... I do like how the rappy flies so I will give it the last chance with the rebuilt OS37 and see what happens.

All being well I should know in a week or two, postal stikes depending and if I want to persue the leccy route then I may be in touch about your 550 if you still have it.

[SRH990]

I own a 550 and a Logo 500 and I'd certainly rather repair the Outrage after a crash, the Logo 500 is a very sweet flying heli and trades on it's low parts count, unfortunately most of those parts are bl**dy expensive! To be honest, I bought the Outrage to replace the Logo which is pretty broken at the moment, although there are alternative sources of regularly needed parts coming available that will help a lot. The two are very close performance wise as both are pretty light.

I bought four 5000mah 6S packs from Hobby City for £200 delivered to my front door in 4 days - neither heli need to be that expensive on battery packs if you know where to look and accept you won't get the latest 40C packs (which probably won't last long anyway )

[Farmer Giles]

I own a 550 and a Logo 500 and I'd certainly rather repair the Outrage after a crash, the Logo 500 is a very sweet flying heli and trades on it's low parts count, unfortunately most of those parts are bl**dy expensive! To be honest, I bought the Outrage to replace the Logo which is pretty broken at the moment, although there are alternative sources of regularly needed parts coming available that will help a lot. The two are very close performance wise as both are pretty light.

I bought four 5000mah 6S packs from Hobby City for £200 delivered to my front door in 4 days - neither heli need to be that expensive on battery packs if you know where to look and accept you won't get the latest 40C packs (which probably won't last long anyway )

Thanks for that..

I already have the hobby city web site in my favourites list

I fly 3700mah, 20C packs in my 500 any that are more than adequate for my level.. giving me a good 10 mins stooging around..

[easyRobin]

I own a Gaui Hurricane 550 CF.

Really like the heli, I put the long boom on it with 55cm blades.
In that size it is almost as big as a T-Rex 600 (which I sold for that reason...).

It is a very stable heli, INCREDIBLE power more than my T-Rex 700 LE!
Fully crazy 3D capable, can run cheap 3s lipos in series or what I use a 6s 3600 Kokam.
Flight times; sport flying with loops/flips about 7 to 8 mins easily.

Parts easily attainable, I use: RC Helicopters from BuzzFlyer - Remote Control Helicopter UK.
Excellent service, quick delivery, good prices! Talk to John.

So all in all, I highly recommended the Gaui Hurricane 550 CF Pro.

Hope this helps...