New Pylon Racer- VOODOO - Page 4

Mavrik · Jun 26, 2005, 01:30 AM

Cool,

I will post my maiden by next week.

Looking forward to test flight.

Chris

robert4u · Jun 27, 2005, 05:52 PM

Hi everybody,

I finally received my VooDoo last saterday and testflown it yesterday.
I was amazed by the quality of the kit and was happy I could fit in my 3s TP2100, which would give me some nice flighttime.

I was really surprised how easy she starts and flies like she is on rails. Landings are easy too, you just need a long way to bleed of the speed.
The speed is very high offcourse, as expected. I only think the advised rates on the ailerons are way to small.

Full throttle gives 22000 rpm at 22 Amp. Since the max Amp of this motor is 18 Amp, I reduced the throttle in my transmitter so the motor draws 19 Amp static at 21000 rpm.
I was first using a Hacker Master 18-3P (with this setup I have flown quite some time in my micro-jet, without any problems, flight time 8-10 min full throttle) but it stopped the motor after about a 4 min flight because the controller got too hot. I already drillled some holes in the fuselage but I doubt that this helps. So I changed it with the 30-3P and now I can fly it without shutting down the motor. BUT the controller is getting very (too) hot and I have to think off something to improve the cooling.

My setup: Mega 16/7/6
Battery 3s ThunderPower 2100 Gen II
Hacker Master 30-3P
Cam speed prop 4,7x4,7
Schulze 835
Graupner C1081
Take off weight 409 gramm
C/G at 41 mm

Robert

rcelectfly · Jun 27, 2005, 06:11 PM

Quote:

Originally Posted by robert4u

.......Full throttle gives 22000 rpm at 22 Amp. Since the max Amp of this motor is 18 Amp, I reduced the throttle in my transmitter so the motor draws 19 Amp static at 21000 rpm.
I was first using a Hacker Master 18-3P (with this setup I have flown quite some time in my micro-jet, without any problems, flight time 8-10 min full throttle) but it stopped the motor after about a 4 min flight because the controller got too hot........

Robert

Using the throttle to reduce the current draw is a formula to get a hot controller. It is very hard on the controller.

You should use a smaller prop to reduce the current. I would suggest trying a 4.7 x 4.1.

Chuck

Mavrik · Jun 28, 2005, 02:18 AM

Quote:

Originally Posted by robert4u

Hi everybody,

I finally received my VooDoo last saterday and testflown it yesterday.
I was amazed by the quality of the kit and was happy I could fit in my 3s
Full throttle gives 22000 rpm at 22 Amp. Since the max Amp of this motor is 18 Amp, I reduced the throttle in my transmitter so the motor draws 19 Amp static at 21000 rpm.
I was first using a Hacker Master 18-3P (with this setup I have flown quite some time in my micro-jet, without any problems, flight time 8-10 min full throttle) but it stopped the motor after about a 4 min flight because the controller got too hot. I already drillled some holes in the fuselage but I doubt that this helps. So I changed it with the 30-3P and now I can fly it without shutting down the motor. BUT the controller is getting very (too) hot and I have to think off something to improve the cooling.

My setup: Mega 16/7/6
Battery 3s ThunderPower 2100 Gen II
Hacker Master 30-3P
Cam speed prop 4,7x4,7TP2100, which would give me some nice flighttime.

I was really surprised how easy she starts and flies like she is on rails. Landings are easy too, you just need a long way to bleed of the speed.
The speed is very high offcourse, as expected. I only think the advised rates on the ailerons are way to small.

Schulze 835
Graupner C1081
Take off weight 409 gramm
C/G at 41 mm

Robert

Hi Robert,

Congrats on your maiden.

I will be in the air this weekend with voodoo. Has rained here for 1 week solid

Good to hear that TP gen 2 3s 2100 fits in. Was it tight squeeze ??

I am running

mega 16/15/3
Schulze alpha 835
cam 4.7x4.7
1500 3s PQ 20 c
cc 25 amp esc

Bench test draws 23.5 amps static.

2 questions

# Where did you place cooling holes ??

# What connectors did you use for wing servos ??

Chris

robert4u · Jun 28, 2005, 06:29 AM

Hi

@Chuck: thanks for the advice. I heard about it before, but since I flew this set-up in my micro-jet for numerous times, I thought it would be oke. It is when enough cool air passes the controller. I definitly will try a smaller prop to get the cuurent down

@Chris: At first I was thinking about the same motor you are using, but I wanted to go as light as possible to get easy starts. Also I'm surprised that it only draws 23,5 Amp. Is it possible for you to take some rpm-readings??
Might be an option in case I get used to the speed, and looking for more

I haven't seen those PQ 1500 20C. Where did you get those??

Getting the TP-pack in and out is just a matter off seconds. Fitts in perfectly. Almost looks like the VooDoo was designed around the TP, and there is still room left to change the C/G. About 0.5 inch forward and 2,5 inch back.

The cooling holes you can see in the picture. I don't believe they are very effective, maybe I will build a small airscoop to force the air into the fuselage.

The connectors I used on the wingservo's were the smallest( and idiot-proof

) I could find in my LHS. They are from SIMPROP

Good luck with your maidenflight next weekend!! ( although you won't need any luck because it just flies so easy),

Robert

GregG · Jun 28, 2005, 06:45 AM

The question I stil have is will the other TP2100 pack fit on top of the pack you already have in the fuse?

3S2p = Double the Wattage

Mavrik · Jun 28, 2005, 07:01 AM

Quote:

Originally Posted by GregG

The question I stil have is will the other TP2100 pack fit on top of the pack you already have in the fuse?

3S2p = Double the Wattage

Yes that would be mad set up. Unfortunately no. The wing servos would get in the way when wing bolted to fuse !!! I think this ship will go fast enough as is

Chris

Mavrik · Jun 28, 2005, 07:09 AM

Quote:

Originally Posted by robert4u

Hi

@Chuck: thanks for the advice. I heard about it before, but since I flew this set-up in my micro-jet for numerous times, I thought it would be oke. It is when enough cool air passes the controller. I definitly will try a smaller prop to get the cuurent down

@Chris: At first I was thinking about the same motor you are using, but I wanted to go as light as possible to get easy starts. Also I'm surprised that it only draws 23,5 Amp. Is it possible for you to take some rpm-readings??
Might be an option in case I get used to the speed, and looking for more

I haven't seen those PQ 1500 20C. Where did you get those??

Getting the TP-pack in and out is just a matter off seconds. Fitts in perfectly. Almost looks like the VooDoo was designed around the TP, and there is still room left to change the C/G. About 0.5 inch forward and 2,5 inch back.

The cooling holes you can see in the picture. I don't believe they are very effective, maybe I will build a small airscoop to force the air into the fuselage.

The connectors I used on the wingservo's were the smallest( and idiot-proof

) I could find in my LHS. They are from SIMPROP

Good luck with your maidenflight next weekend!! ( although you won't need any luck because it just flies so easy),

Robert

Thanks for the pics Robert. I will try and souce those servo connectors also. The pack I use is Poly Quest new 20 C version. I have seen them on the maxamps web site http://www.maxamps.com/index.html?la...arget=d14.html.

Where did you get TP packs from ?

I will try and borrow a rpm meter and post.

Chris

robert4u · Jun 28, 2005, 07:21 AM

Hi GregG,

2 packs will definitly not fit in the VooDoo. I was already to happy to get 1 pack in since it has to slide below the speedcontroller. And also the extra weight of a second pack would mean difficults starts and landings I think.

Chris I got my TP at www.allerc.com. Got them delivered to europe within 1,5 weeks!!

I'm looking forward to the rpm-readings.
What's you're all-up weight??

Robert

Mavrik · Jun 28, 2005, 07:46 AM

Quote:

Originally Posted by robert4u

Hi GregG,

2 packs will definitly not fit in the VooDoo. I was already to happy to get 1 pack in since it has to slide below the speedcontroller. And also the extra weight of a second pack would mean difficults starts and landings I think.

Chris I got my TP at www.allerc.com. Got them delivered to europe within 1,5 weeks!!

I'm looking forward to the rpm-readings.
What's you're all-up weight??

Robert

Hi Robert,

Will check all up weight tomorrow on dig scales and post.

Will have access hopefully to RPM meter on weekend at flying club !!

Are TP 20 C packs ?

Chris

robert4u · Jun 28, 2005, 08:54 AM

Hi Chris,

the Tp 2100 genII are 10-12C cont. and 16C burst (21-25A/33A), so this will be more than enough for these little engines , and there weight is only 148 gramm with connectors

Robert

GregG · Jun 28, 2005, 01:35 PM

Quote:

Originally Posted by robert4u

.....2 packs will definitly not fit in the VooDoo. I was already to happy to get 1 pack in since it has to slide below the speedcontroller.....

Hi Robert,

Thanks for the quick answer. Since another 3 cell pack won't fit on top of the existing one would at least one more cell fit without interfering with anything? Perhaps a 4S or a 2S2P?

Kimble_Schmitz · Jun 28, 2005, 06:50 PM

Those Thunder Power Gen 2 packs cheap and quick from Dave at www.lightflightrc.com

I am thinking of moving the front servo down to the rear behind the rear servo. Or on top of the rear servo or rather below it when the wing is bolted on. All of this to make room for the 2 packs of 3S TP 2100. Then a 16/15/x and CC-45 to go warp speed.

Also a Schulze 535w to save some room.

Jos.

Mavrik · Jun 29, 2005, 06:51 AM

Quote:

Originally Posted by robert4u

Hi Chris,

the Tp 2100 genII are 10-12C cont. and 16C burst (21-25A/33A), so this will be more than enough for these little engines , and there weight is only 148 gramm with connectors

Robert

Hi Robert,

I buggered up that amp draw on prior post you were right. Tested on flat pack. Charged pack with posted set up draws 32.5 amp static. Not good for lipo pack !!! I will need to prop down to say 4.2x4.2 apc. Hopefully this will amp down to around 24 amp static.

Now will need to source one for weekend. Bugger !!

Mavrik · Jun 29, 2005, 07:33 AM

Quote:

Originally Posted by Kimble_Schmitz

Those Thunder Power Gen 2 packs cheap and quick from Dave at www.lightflightrc.com

I am thinking of moving the front servo down to the rear behind the rear servo. Or on top of the rear servo or rather below it when the wing is bolted on. All of this to make room for the 2 packs of 3S TP 2100. Then a 16/15/x and CC-45 to go warp speed.

Also a Schulze 535w to save some room.

Jos.

That would be animal set up. What do you currently have in Voodoo ??

Chris

Jun 27, 2005, 05:52 PM	#47
robert4u Registered User Join Date: Aug 2004 Location: Netherlands Posts: 25	Hi everybody, I finally received my VooDoo last saterday and testflown it yesterday. I was amazed by the quality of the kit and was happy I could fit in my 3s TP2100, which would give me some nice flighttime. I was really surprised how easy she starts and flies like she is on rails. Landings are easy too, you just need a long way to bleed of the speed. The speed is very high offcourse, as expected. I only think the advised rates on the ailerons are way to small. Full throttle gives 22000 rpm at 22 Amp. Since the max Amp of this motor is 18 Amp, I reduced the throttle in my transmitter so the motor draws 19 Amp static at 21000 rpm. I was first using a Hacker Master 18-3P (with this setup I have flown quite some time in my micro-jet, without any problems, flight time 8-10 min full throttle) but it stopped the motor after about a 4 min flight because the controller got too hot. I already drillled some holes in the fuselage but I doubt that this helps. So I changed it with the 30-3P and now I can fly it without shutting down the motor. BUT the controller is getting very (too) hot and I have to think off something to improve the cooling. My setup: Mega 16/7/6 Battery 3s ThunderPower 2100 Gen II Hacker Master 30-3P Cam speed prop 4,7x4,7 Schulze 835 Graupner C1081 Take off weight 409 gramm C/G at 41 mm Robert Attached Thumbnails 153.7 KB · Views: 1075 110.5 KB · Views: 1485 113.9 KB · Views: 1803

Jun 28, 2005, 06:29 AM	#50
robert4u Registered User Join Date: Aug 2004 Location: Netherlands Posts: 25	Hi @Chuck: thanks for the advice. I heard about it before, but since I flew this set-up in my micro-jet for numerous times, I thought it would be oke. It is when enough cool air passes the controller. I definitly will try a smaller prop to get the cuurent down @Chris: At first I was thinking about the same motor you are using, but I wanted to go as light as possible to get easy starts. Also I'm surprised that it only draws 23,5 Amp. Is it possible for you to take some rpm-readings?? Might be an option in case I get used to the speed, and looking for more I haven't seen those PQ 1500 20C. Where did you get those?? Getting the TP-pack in and out is just a matter off seconds. Fitts in perfectly. Almost looks like the VooDoo was designed around the TP, and there is still room left to change the C/G. About 0.5 inch forward and 2,5 inch back. The cooling holes you can see in the picture. I don't believe they are very effective, maybe I will build a small airscoop to force the air into the fuselage. The connectors I used on the wingservo's were the smallest( and idiot-proof ) I could find in my LHS. They are from SIMPROP Good luck with your maidenflight next weekend!! ( although you won't need any luck because it just flies so easy), Robert Attached Thumbnails 118.9 KB · Views: 1531 98.6 KB · Views: 1294 94.8 KB · Views: 1139

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Discussion New Pylon Racer	dalbert02	Electric Plane Talk	2	Sep 22, 2006 10:19 PM
Discussion New pylon racer.. whatcha think?	threcixty	High Performance	7	Jul 31, 2006 12:10 AM
Spirit 400, my new pylon racer!	Thomas Manson	Parkflyers	2	Aug 31, 2003 09:07 PM
New pylon racer launch system	sneu	High Performance	5	Feb 13, 2003 05:22 AM
T-Strike, a new pylon racer!	Harm Botman	High Performance	15	Jan 25, 2002 07:26 PM

Jun 26, 2005, 01:30 AM	#46
Mavrik Registered User Join Date: May 2005 Location: Sydney Australia Posts: 818	Cool, I will post my maiden by next week. Looking forward to test flight. Chris

Jun 28, 2005, 06:45 AM	#51
GregG Speed Demon Join Date: Dec 1999 Location: Antioch,CA,USA Posts: 11,390	The question I stil have is will the other TP2100 pack fit on top of the pack you already have in the fuse? 3S2p = Double the Wattage

Jun 28, 2005, 07:21 AM	#54
robert4u Registered User Join Date: Aug 2004 Location: Netherlands Posts: 25	Hi GregG, 2 packs will definitly not fit in the VooDoo. I was already to happy to get 1 pack in since it has to slide below the speedcontroller. And also the extra weight of a second pack would mean difficults starts and landings I think. Chris I got my TP at www.allerc.com. Got them delivered to europe within 1,5 weeks!! I'm looking forward to the rpm-readings. What's you're all-up weight?? Robert

Jun 28, 2005, 08:54 AM	#56
robert4u Registered User Join Date: Aug 2004 Location: Netherlands Posts: 25	Hi Chris, the Tp 2100 genII are 10-12C cont. and 16C burst (21-25A/33A), so this will be more than enough for these little engines , and there weight is only 148 gramm with connectors Robert

Jun 28, 2005, 06:50 PM	#58
Kimble_Schmitz Ain't Dutch? Ain't Mutch! Join Date: Oct 2001 Location: Southampton, UK Posts: 3,377	Those Thunder Power Gen 2 packs cheap and quick from Dave at www.lightflightrc.com I am thinking of moving the front servo down to the rear behind the rear servo. Or on top of the rear servo or rather below it when the wing is bolted on. All of this to make room for the 2 packs of 3S TP 2100. Then a 16/15/x and CC-45 to go warp speed. Also a Schulze 535w to save some room. Jos.