A-10 Glow to electric?

[Vagabond324]

Hi, just want to hear if anyone has done a conversion of Rich Uravich's A-10 that use's 2 - 25's for glow power to electric power. What was done to lighten up the kit, what power systems will work best in this airframe. Also would like to hear about using retract system and best batteries, esc, etc. Thanks for any idea's and of course for your time. :)

[P. Czelusniak]

[I] Hey if you get the information you are asking for please forward to me

[Vagabond324]

Still waiting to hear if anyone did this conversion? :eek:

[drksyd]

Do you know what size fan it calls for? What's the auw?
It will probably take midi fans so you're looking at a couple of good 600 size motors.

[R. C. Day]

Hi, just want to hear if anyone has done a conversion of Rich Uravich's A-10 that use's 2 - 25's for glow power to electric power. :)

Don't you mean OV10 Bronco?

[drksyd]

I think you're right. One of the the guys just maidened one of the arf kits today. He had 2826/10's but you should be fine with 2820's or Mega 22/20/4's.

[FCBrosius]

Hey, I had the same question….. The answer I got was the MIDI fan (90 mm fan) and a Ball Bearing Motor to turn it like a speed “RACE” 600 with the ball bearings are an improvement over stock motors. Also LI-PO packs to power it… That is what was passed to me. I guess it will depend on how much you want to spend or have already around on what you do…. Frank

[drksyd]

Where do you get these from?

[FCBrosius]

This is some of the info I found…. I might suggest www.google.com and type in the model number and see whom might have them. This is not a brushless motor rather they are brushed….. Frank


6311
SPEED 600 BB SP 7.2V
ELECTRIC MOTORS
Product information
High-quality ballraced motor for use with 6 or 7 NC cells. Propeller size 18 x 10 cm.
Specification
Nominal voltage 7,2 V
Operating voltage range 6 ... 9,6 V
No-load rpm 21200 min 1
No-load current drain 1,8 A
Current drain at max. efficiency 12,7 A
Current drain when stalled 90 A
Max. efficiency without gearbox 76 %
Length of case, excl. shaft 57 mm
Diameter 35,7 mm
Free shaft length 11,9 mm
Shaft diameter 3,17 mm
Weight 194 g




6309
SPEED 600 BB SP 8.4V
ELECTRIC MOTORS
Product information
Ballraced SPEED 600 motor for direct drive (propeller size approx. 20 x 11 cm) on 7 cells. Also suitable for use in the POWER GEAR 2.5:1 toothed belt reducer.
Specification
Nominal voltage 8,4 V
Operating voltage range 6 ... 9,6 V
No-load speed 17000 min -1
No-load current drain 1,2 A
Current drain at max. efficiency 9,5 A
Stall current 87,5 A
Max. efficiency excl. gearbox 76 %
Permissible rot. direction R and L
Case lenght, excl. shaft 57 mm
Diameter 36 mm
Free shaft length 11,8 mm
Shaft diameter 3,17 mm
Weight 205 g



6312
SPEED 600 RACE 8.4V
ELECTRIC MOTORS
Product information
High-revving SPEED motor for models such as F5D MUNGA with 8 x 1 Ah NC cells and propellers of around 14 x 14 cm.
Specification
Nominal voltage 8,4 V
Operating voltage range 4,8 ... 9,6 V
No-load rpm 21000 min 1
No-load current drain 2,2 A
Current drain at max. efficiency 12 A
Current drain when stalled 90 A
Max. efficiency without gearbox 76 %
Length of case, excl. shaft 57 mm
Diameter 36 mm
Free shaft length 8,5 mm
Shaft diameter 3,17 mm
Weight 195g

[drksyd]

Sorry, I meant the A-10's.

[FCBrosius]

OH...... http://www.richuravitch.com/index.htm Try this..... Frank

[drksyd]

I checked his site and haven't seen anything about an A-10. I did see his S-3 that's coming out and would like to get one of those though.

[FCBrosius]

You could try contacting him on his site and just ask him. I would guess he will help you..

[ken.robinson]

Hi, just want to hear if anyone has done a conversion of Rich Uravich's A-10 that use's 2 - 25's for glow power to electric power. What was done to lighten up the kit, what power systems will work best in this airframe. Also would like to hear about using retract system and best batteries, esc, etc. Thanks for any idea's and of course for your time. :)

I just completed a Rich Uravich OV-10 Bronco as an electric. I had my maiden flight last night. I added an additional bay to each of the wings to give me a span of 57". First flight was straight forward with no trim adjustments required at 1/2 throttle. My landing was hard (need more up elevator throw) and I bend a main gear. Total weight (fully loaded) is 5.75 lb (I used built up formers instead of solid and substituted balsa for ply when I could).

I used 2 Turnigy 3536c 1100kv outrunners driven by 2 Turnigy 40A Plush ESCs. Batteries are FlightMax 2200 3s wired in parallel. Receiver and 7 servos are power by an 800mah 3s lipo through a Turnigy 8-15A UBEC. Props are HobbyCity 11x5.5.

Full throttle draw is 30A on each motor and rpm is 9600.

Ken