Does a Raptor 60 electric conversion kit exist?! - Page 3

RC Man · Sep 11, 2006, 07:14 PM

Quote:

Originally Posted by gruntdog

nice work on that RcMan!!

keeping my eyes open for a 60 or 90 w/o motor for conversion

Sometimes you can purchase one with an engine and muffler then sell the parts you don’t need and get a cheaper helicopter that way. You have lots of parts that you can sell on ebay (engine, muffler, fuel tank, header tank, motor mount, remote glow cable, …)

RC

scary · Sep 11, 2006, 09:38 PM

wow! thanks RC Man!

i am awaiting (hopefully) some gear from the US for the conversion.... Axi 4130/16
and a Castle Creations HV 85.

looks like the ttpacks is the way to go! ill order one in then

cheers

ozace · Sep 11, 2006, 09:40 PM

not many have had luck with the Axi motors in helis, just keep it in mind.

scary · Sep 12, 2006, 02:05 AM

oh....

can you please elaborate? even for simple AP work?

ozace · Sep 12, 2006, 02:14 AM

The Axi's usuall run hot , very hot in heli apps. There were cases of magnets falling out quite a while back and ever since then most stear clear. You hardly see or hear about anyone using an Axi in helis these days.

scary · Sep 12, 2006, 02:47 AM

after doing some research, it seems that the Axi motors need to be kept cooler than 130°C to avoid damage.i may have to direct some of the propellor air over the engine. i cant see a top mounted engine being any good for the centre of gravity... ill have to see when i have the engine in my little hands... or even build a little protoyype of the motor and see where it could fit.

cheers

RC Man · Sep 13, 2006, 06:38 AM

I got it flying yesterday and it really flies beautifully. It is much smoother than my Raptor 50 – just the thing for AP or someone who wants a real easy to fly helicopter – incredibly smooth. The power system I have is only good for 1750-1800 headspeed so it is not a wild 3D helicopter but very nice for come relaxing sport flying.

I was a little concerned that this motor would run hot but it stayed about 140F with an air temperature of 72F. This is cool for Neu motors, as they are good to 200F. I was using an old TP 10s2p 4200 pack that had several hundred flights on it.

I did one flight at 1550-1600 headspeed mostly hovering and flight to simulate AP work. At a weight of 11.6 lb it draws about 18 amps. This is with Mavrikk 680mm CF blades and stock tail blades. With the 10s LiPo that comes out 62.8 watts per pound. I would say that if you use 65 watts per pound you would get a very good estimate of the flight time for an AP application. Be aware that the power requirement goes up rapidly with headspeed so if you run higher headspeed you flight time will go down a lot.

I got a PM from Steve Neu indicating that the helicopter version of the big ORK (1915 with fan and new design of rotor to shaft attachment) would ship from the factory late this week so they should be in stores in a week or two. This should be the ultimate power for those who want a large 3D helicopter.

All in all this project turned out better than I expected

RC

gruntdog · Sep 13, 2006, 06:51 AM

Real nice work in short order RCMan.

RC Man · Sep 13, 2006, 11:26 AM

Hear are some photos of the complete helicopter. I used two TP4200 5s2p packs, one in front under the radio tray and the other in the fuel tank area. This helicopter has lots of room for batteries. The Phoenix HV85 ESC is also in the tank area. I use a UBEC for radio power.

In this configuration it is slightly lighter than with the OS70 and an empty tank of fuel.

Does anyone know the conversion from fuel volume to weight?

RC

Albig · Sep 13, 2006, 11:40 AM

A gallon of alcohol weighs about 6.6 lbs and I guess the tank on that raptor is about a quart so it should hold about 1.6 lbs of fuel. Oil being about 20% by volume should weigh the same or a little less per unit but I really don't know what the weight of Klotz is

Al

RC Man · Sep 13, 2006, 01:54 PM

Quote:

Originally Posted by Albig

A gallon of alcohol weighs about 6.6 lbs and I guess the tank on that raptor is about a quart so it should hold about 1.6 lbs of fuel. Oil being about 20% by volume should weigh the same or a little less per unit but I really don't know what the weight of Klotz is

Al

Thanks,

It sounds like I am way lighter than a nitro raptor with a full tank of fuel.

With some lightweight upgrades and a little larger propulsion system the Raptor 60/90 will definitely fly better than the nitro version. I am really amazed that there aren’t more Raptor 60/90 EP’s flying. It’s really a very easy and low cost conversion.

RC

ozace · Sep 13, 2006, 07:22 PM

Job well done RC, the speed in which you moved is impressive.

scary · Sep 14, 2006, 07:05 AM

dam straight! my raptor 60 is sitting on top of my bench waiting for paypal to send me its stupid location letter and then i can finally get my parts sent over from the states.

well done RC Man, that thing is hot!

gruntdog · Sep 14, 2006, 07:16 AM

I am suprised that this has not been done before , especially since the adapters
fit so easily.

I have sold my swift to satisfy the wife so that I can add a 60 or 90 to the fleet,
too many heli's in the shop and I get the old , "you can't fly them all" routine

kudos again to RCMan and his quick build

MT

RC Man · Sep 14, 2006, 08:31 AM

For those who are interested in a wider choice of pinion gears there is an alternate conversion method that you may be interested in. Use a 5mm shaft and couple then you can use standard 5mm mod 1 pinion gears. Logo, TT, Swift and others use these pinions and there are available down to 8t.

Boca has 5x15x5mm and 5x19x6mm bearings that can be fitted to the bearing block so you can use a 5mm pinion shaft. The Raptor bearing block will have to be modified slightly for the wider 5x19x6 bearing since the bottom bearing grove is only 5mm wide. A few seconds with a dermal and it will drop right in.

SDP-SI.com has 5mm shafts and couplers. They have 5mm to 5mm and 5mm to 6mm shaft couplers so you can use outrunners with 6mm shafts. If you have problems finding these parts I will look up the link. This is the method that is used on the XeroG 600EP when mounting a motor underneath without The Box and works very well.

RC

Sep 13, 2006, 11:26 AM	#39
RC Man A man with too many helicopter Join Date: Feb 2001 Location: Illinois Posts: 10,681	Hear are some photos of the complete helicopter. I used two TP4200 5s2p packs, one in front under the radio tray and the other in the fuel tank area. This helicopter has lots of room for batteries. The Phoenix HV85 ESC is also in the tank area. I use a UBEC for radio power. In this configuration it is slightly lighter than with the OS70 and an empty tank of fuel. Does anyone know the conversion from fuel volume to weight? RC Attached Thumbnails 116.2 KB · Views: 521 92.4 KB · Views: 323 114.4 KB · Views: 416

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Sep 11, 2006, 09:38 PM	#32
scary Registered User Join Date: Sep 2005 Location: Bunbury, Australia Posts: 66	wow! thanks RC Man! i am awaiting (hopefully) some gear from the US for the conversion.... Axi 4130/16 and a Castle Creations HV 85. looks like the ttpacks is the way to go! ill order one in then cheers

Sep 11, 2006, 09:40 PM	#33
ozace Renewed interest Join Date: Jun 2002 Location: Melbourne , Australia Posts: 8,918	not many have had luck with the Axi motors in helis, just keep it in mind.

Sep 12, 2006, 02:05 AM	#34
scary Registered User Join Date: Sep 2005 Location: Bunbury, Australia Posts: 66	oh.... can you please elaborate? even for simple AP work?

Sep 12, 2006, 02:14 AM	#35
ozace Renewed interest Join Date: Jun 2002 Location: Melbourne , Australia Posts: 8,918	The Axi's usuall run hot , very hot in heli apps. There were cases of magnets falling out quite a while back and ever since then most stear clear. You hardly see or hear about anyone using an Axi in helis these days.

Sep 12, 2006, 02:47 AM	#36
scary Registered User Join Date: Sep 2005 Location: Bunbury, Australia Posts: 66	after doing some research, it seems that the Axi motors need to be kept cooler than 130°C to avoid damage.i may have to direct some of the propellor air over the engine. i cant see a top mounted engine being any good for the centre of gravity... ill have to see when i have the engine in my little hands... or even build a little protoyype of the motor and see where it could fit. cheers

Sep 13, 2006, 06:38 AM	#37
RC Man A man with too many helicopter Join Date: Feb 2001 Location: Illinois Posts: 10,681	I got it flying yesterday and it really flies beautifully. It is much smoother than my Raptor 50 – just the thing for AP or someone who wants a real easy to fly helicopter – incredibly smooth. The power system I have is only good for 1750-1800 headspeed so it is not a wild 3D helicopter but very nice for come relaxing sport flying. I was a little concerned that this motor would run hot but it stayed about 140F with an air temperature of 72F. This is cool for Neu motors, as they are good to 200F. I was using an old TP 10s2p 4200 pack that had several hundred flights on it. I did one flight at 1550-1600 headspeed mostly hovering and flight to simulate AP work. At a weight of 11.6 lb it draws about 18 amps. This is with Mavrikk 680mm CF blades and stock tail blades. With the 10s LiPo that comes out 62.8 watts per pound. I would say that if you use 65 watts per pound you would get a very good estimate of the flight time for an AP application. Be aware that the power requirement goes up rapidly with headspeed so if you run higher headspeed you flight time will go down a lot. I got a PM from Steve Neu indicating that the helicopter version of the big ORK (1915 with fan and new design of rotor to shaft attachment) would ship from the factory late this week so they should be in stores in a week or two. This should be the ultimate power for those who want a large 3D helicopter. All in all this project turned out better than I expected RC

Sep 13, 2006, 06:51 AM	#38
gruntdog Big Kid / Big Toys Join Date: Feb 2003 Location: Ontario Canada Posts: 264	Real nice work in short order RCMan.

Sep 13, 2006, 11:40 AM	#40
Albig Das Universus Elektrikus Join Date: Mar 2002 Location: NM, USA Posts: 3,309	A gallon of alcohol weighs about 6.6 lbs and I guess the tank on that raptor is about a quart so it should hold about 1.6 lbs of fuel. Oil being about 20% by volume should weigh the same or a little less per unit but I really don't know what the weight of Klotz is Al

Sep 13, 2006, 07:22 PM	#42
ozace Renewed interest Join Date: Jun 2002 Location: Melbourne , Australia Posts: 8,918	Job well done RC, the speed in which you moved is impressive.

Sep 14, 2006, 07:05 AM	#43
scary Registered User Join Date: Sep 2005 Location: Bunbury, Australia Posts: 66	dam straight! my raptor 60 is sitting on top of my bench waiting for paypal to send me its stupid location letter and then i can finally get my parts sent over from the states. well done RC Man, that thing is hot!

Sep 14, 2006, 07:16 AM	#44
gruntdog Big Kid / Big Toys Join Date: Feb 2003 Location: Ontario Canada Posts: 264	I am suprised that this has not been done before , especially since the adapters fit so easily. I have sold my swift to satisfy the wife so that I can add a 60 or 90 to the fleet, too many heli's in the shop and I get the old , "you can't fly them all" routine kudos again to RCMan and his quick build MT

Sep 14, 2006, 08:31 AM	#45
RC Man A man with too many helicopter Join Date: Feb 2001 Location: Illinois Posts: 10,681	For those who are interested in a wider choice of pinion gears there is an alternate conversion method that you may be interested in. Use a 5mm shaft and couple then you can use standard 5mm mod 1 pinion gears. Logo, TT, Swift and others use these pinions and there are available down to 8t. Boca has 5x15x5mm and 5x19x6mm bearings that can be fitted to the bearing block so you can use a 5mm pinion shaft. The Raptor bearing block will have to be modified slightly for the wider 5x19x6 bearing since the bottom bearing grove is only 5mm wide. A few seconds with a dermal and it will drop right in. SDP-SI.com has 5mm shafts and couplers. They have 5mm to 5mm and 5mm to 6mm shaft couplers so you can use outrunners with 6mm shafts. If you have problems finding these parts I will look up the link. This is the method that is used on the XeroG 600EP when mounting a motor underneath without The Box and works very well. RC