Electric Power Setup
#1
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Electric Power Setup
I would like to get an electric setup for our 1/2a planes. Size from 24 inch span up to several HOB warbirds up to 39 inch span. Would recommendations for a motor, an esc and a battery. The 39 inch stuff would be the biggest planes. Just want 1 set up to use for several different planes. We still fly glow 80% of the time. Thanks.
#2
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RE: Electric Power Setup
ORIGINAL: Steve Westphal
I would like to get an electric setup for our 1/2a planes. Size from 24 inch span up to several HOB warbirds up to 39 inch span. Would recommendations for a motor, an esc and a battery. The 39 inch stuff would be the biggest planes. Just want 1 set up to use for several different planes. We still fly glow 80% of the time. Thanks.
I would like to get an electric setup for our 1/2a planes. Size from 24 inch span up to several HOB warbirds up to 39 inch span. Would recommendations for a motor, an esc and a battery. The 39 inch stuff would be the biggest planes. Just want 1 set up to use for several different planes. We still fly glow 80% of the time. Thanks.
I have a great electric simulation of a Tee Dee .049. Creates similar prop noise! Use it in a number of converted .049 ARFs and models.
Balsa Products 2212-6 outrunner (or any outrunner of the same basic size and Kv)
6x4 prop or 6x3 prop
30 amp ESC
1300-1600 lipo 3S lipo.
Setup is pretty hot on a 6x4 prop and the batteries need to be up to the task. Milder amp draw on a 6x3 prop. If you want a truer to life .049-like power output, you can go down to a 2S battery.
#5
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RE: Electric Power Setup
That motor is 2200kv and 220 watts max.
(And out of stock at BalsaPR) http://www.bphobbies.com/view.asp?id...7&pid=B2632603
Similar motors abound:
http://www.hobbyking.com/hobbyking/s...ner_Motor.html
Most motors sold as "Speed 400" replacements are good .049 substitutes.
Lower Kv would be more reed valve-ish, higher Kv's are more TeeeDee-ish!
Dave
(And out of stock at BalsaPR) http://www.bphobbies.com/view.asp?id...7&pid=B2632603
Similar motors abound:
http://www.hobbyking.com/hobbyking/s...ner_Motor.html
Most motors sold as "Speed 400" replacements are good .049 substitutes.
Lower Kv would be more reed valve-ish, higher Kv's are more TeeeDee-ish!
Dave
#6
RE: Electric Power Setup
Here's another source: http://www.headsuphobby.com/370-450-Class_c252.htm
$2.00 flat rate shipping to CONUS. I've used these folks a lot and been very satisfied - but I'm not associated with them.
$2.00 flat rate shipping to CONUS. I've used these folks a lot and been very satisfied - but I'm not associated with them.
#7
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RE: Electric Power Setup
ORIGINAL: fritzke
That motor is 2200kv and 220 watts max.
(And out of stock at BalsaPR) http://www.bphobbies.com/view.asp?id...7&pid=B2632603
Similar motors abound:
http://www.hobbyking.com/hobbyking/s...ner_Motor.html
Most motors sold as ''Speed 400'' replacements are good .049 substitutes.
Lower Kv would be more reed vale-ish, higher Kv's are more TeeeDee-ish!
Dave
That motor is 2200kv and 220 watts max.
(And out of stock at BalsaPR) http://www.bphobbies.com/view.asp?id...7&pid=B2632603
Similar motors abound:
http://www.hobbyking.com/hobbyking/s...ner_Motor.html
Most motors sold as ''Speed 400'' replacements are good .049 substitutes.
Lower Kv would be more reed vale-ish, higher Kv's are more TeeeDee-ish!
Dave
The milder Speed 400 class outrunners spin larger props and do not give, in my opinion, a reasonable .049 substitution experience. They are OK if you want something mild, though.
The real 1/2A guy wants something with a 5 or 6" prop.....
And with the 2200Kv, 2 cells is more reed valve ish and 3 cells is more Tee-Dee-ish. (Actually, two cells is more than a normal Tee Dee and three cells is ballistic. That is what the throttle is for!)
I have the following Heads up 400 class outrunner (nearly identical to the BP motor listed) in a .049 size delta model and it works great:
http://www.headsuphobby.com/Power-Up...otor-E-557.htm
Also currently out of stock like a lot of the hot 2200 Kv outrunners that size. There is a reason they are popular....
#8
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RE: Electric Power Setup
I've used the E-Flite Six Series motors in 1/2A's. The 2700kV on 3S and a 5.1x4.5 APC prop is pretty sporty - 206kph on an ACE Simple 400 for example, unlimited vertical. Great fun. The 2000kV is probably more sensible coupled to a 6x3 or 6x4 prop.
I don't think these qualify as Cox substitutes, more like .10-.12 performance. But, you have the virtue of a linear throttle.
I don't think these qualify as Cox substitutes, more like .10-.12 performance. But, you have the virtue of a linear throttle.
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RE: Electric Power Setup
I have used HeadsUp as well, very fast shipping, good prices-
If you still fly FM, they have decent cheap receivers and $2.50 crystals.
Just this weekend ordered 2 Rx's, 3 crystals, a "400" sport brushless motor,
2 lipo battery packs and 4 cheepo $2 servos, all for under $80
Dave
If you still fly FM, they have decent cheap receivers and $2.50 crystals.
Just this weekend ordered 2 Rx's, 3 crystals, a "400" sport brushless motor,
2 lipo battery packs and 4 cheepo $2 servos, all for under $80
Dave
#11
RE: Electric Power Setup
ORIGINAL: skaliwag
What would you suggest using from Heads Up that would be behave like a Sure Start power-wise perhaps using a 7 inch prop instead of a 6 inch. 2 or 3 cell?
What would you suggest using from Heads Up that would be behave like a Sure Start power-wise perhaps using a 7 inch prop instead of a 6 inch. 2 or 3 cell?
• 50-70 watts per pound; Minimum level of power for decent performance, good for lightly loaded slow flyer and park flyer models
• 70-90 watts per pound; Trainer and slow flying scale models
• 90-110 watts per pound; Sport aerobatic and fast flying scale models
• 110-130 watts per pound; Advanced aerobatic and high-speed models
• 130-150 watts per pound; Lightly loaded 3D models and ducted fans
• 150-200+ watts per pound; Unlimited performance 3D and aerobatic models
It would really help if you let us know model weight, span and what sort of flight characteristics you're looking for. While I might have a Mini-Mambo and a flying wing that have about the same weight and span, the motor/ESC/battery combination would be completely different. The Mambo would be set up for slow flight with maximum duration while the wing likely will have a hotter motor, greater speed and much less flight time. The lekkies have opened up a whole new world in how we can power the planes as opposed to changing nitro content and prop size.
#13
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RE: Electric Power Setup
A few possibilities
http://www.headsuphobby.com/Emax-CF2...otor-E-605.htm
http://www.headsuphobby.com/Firepowe...otor-G-555.htm
http://www.headsuphobby.com/Firepowe...otor-E-530.htm
That plane looks like a Ted Strader Chicken Hawk.
Dave
http://www.headsuphobby.com/Emax-CF2...otor-E-605.htm
http://www.headsuphobby.com/Firepowe...otor-G-555.htm
http://www.headsuphobby.com/Firepowe...otor-E-530.htm
That plane looks like a Ted Strader Chicken Hawk.
Dave
#14
RE: Electric Power Setup
ORIGINAL: fritzke
That plane looks like a Ted Strader Chicken Hawk.
Dave
That plane looks like a Ted Strader Chicken Hawk.
Dave
It does, but I don't think the Chicken Hawk had the interplane struts and I believe the top wing was close to 34", quite a bit larger than Steve's model.
Here's my hat in the ring (all from Heads Up):
HURC 250 Plus, 1300 KV, Wt. 20g
Propeller Test Data for the HURC 250 Plus Motor:
Battery Size Propeller Size Thrust (oz.) Amps Notes
3-Cell 11.1v GWS 7035 14.0 oz. 7.0 amps Avoid constant wide open throttle
3-Cell 11.1v GWS 6030 11.0 oz. 5.5 amps
3-Cell 11.1v GWS 6030x3 12.0 oz. 6.0 amps
3-Cell 11.1v GWS 5030 8.0 oz. 3.5 amps
2-Cell 7.4v GWS 8040 10.0 oz. 6.5 amps
2-Cell 7.4v GWS 7035 8.0 oz. 4.0 amps
2-Cell 7.4v GWS 7035x3 8.5 oz. 5.0 amps
2-Cell 7.4v APC 7 x 6E 8.5 oz. 6.5 amps
2-Cell 7.4v GWS 7060 8.0 oz. 7.0 amps Avoid constant wide open throttle
2-Cell 7.4v GWS 6030 6.5 oz. 3.0 amps
2-Cell 7.4v GWS 6030x3 7.0 oz. 3.5 amps
HURC 10A ESC, 1A BEC builtin (12.7g)
Use either a 2s 800 mAh (42.5g)or 2s 1000 mAh (57g)
A Sure Start with a 6x3 prop weighs 54g, so dropping the RX battery in place of the BEC, the fuel tank and throttle servo, weight would come close to being a wash.
I would be inclined to run a 2s, either the GWS 7035 or 7035x3 and go for duration.
#16
Senior Member
Thread Starter
RE: Electric Power Setup
I would like to find plans for a 16 inch Pitts for my .010. I guess I could scale down a bigger plan but sometimes that doesn't work well, but, maybe it's the only way to do it. I think a small Pitts for .010 would be a gas!!!
#18
RE: Electric Power Setup
For light wing loading planes like a Jr Falcon, I like the BP 2208-14 with a 8X6 or 9X5 and 3S. Lots of thrust and normal reedy speed.
For TD style I have used the BP 2208-12 with a 7X5 and a 3S Again, good speed with extra thrust.
With the 22k motors I always end up with heat issues because they run so nice over propped.
Has anyone found a good cleaner to wipe off the spent electrons when you get home? Windex doesn't seem to touch em.
For TD style I have used the BP 2208-12 with a 7X5 and a 3S Again, good speed with extra thrust.
With the 22k motors I always end up with heat issues because they run so nice over propped.
Has anyone found a good cleaner to wipe off the spent electrons when you get home? Windex doesn't seem to touch em.