View Full Version : "House of Balsa" P-51 Conversion?

12-30-2005, 07:23 PM
Hey all, just a quick (okay, probably not, but...) question to all of you out there. Has anyone built/converted a House of Balsa P-51 (43" WS) to electric? If so, what motor/battery/prop combination did you use and you would make any changes?



Jeff Boyd 2
12-31-2005, 11:23 AM
Hi Dave, I am not familiar with this model . . but if you haven't got it yet . . check this P51 ARF electric . . . IT'S AWESOME ! ! !

I'm very tempted . . .

Cheers, Jeff

12-31-2005, 04:43 PM
Looks nice! Glad someone is building larger electric-oriented planes from the start. The HOB P-51 is actually on a friend's building board at the moment and he wants to go electric with it. Since he doesn't have internet access, I volunteered to seek out anyone that may have built the plane and converted it to electric. He likes to build, so for him, the ARF wouldn't interest him, but I will bookmark it on my system;- )



12-31-2005, 11:03 PM
Hi Dave
This is another that was done a lot a few years ago, but interest faded with the introduction of check book electrics. I have vague recollection of one here around the DC area that flew good, but can't recall much else.

If the info on conversions is still around, it'll likely be on the E Zone (sorry ... :( ) or maybe try Ken Myers' site - do a google on "Ampeer" - it's a great non-commercial site that's well worth the visit anyway.


12-31-2005, 11:59 PM
Gas to electric conversions - http://www.hobby-lobby.com/glow2econ.htm Compare similar weight and wing area/types fpr power recommendations.

House of Balsa sells an electric version of the P-51- http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGAL0&P=0
You can compare them to see if there are any differences or if it is the same plane.

Call H of B, they are very helpful and have done many electric conversions.

Darrell B.
01-18-2006, 10:29 PM
Sorry it took me so long to see this thread. Here is a picture of mine. I used an AXI 2808-24, with a Jeti 18 amp esc, 3s2100mAh lipo, and no landing gear. AUW is 30oz, and it flies awesom. If you want insane power use the 2814. Im turning a 10x7 Aero folding prop for those fast belly landigs and touch and goes.

01-31-2006, 01:55 AM
I have a HOB P51, also. It's 90 percent finished and just waiting for a power plant. I'd be interested in some suggestions.

Darrell, you have a different airplane:o . It looks great, though! The House Of Balsa P51 is for a "20" sized glo engine. It weighs in at 48 ounces.

I have an OS "20" waiting, but have had lots of fun with my Fundango (with rudder mod) and an MPJet 25/35 with gear drive. I've been considering using the MPJet 26/45-20D w/ gear drive, is everyone using outrunners these days?

03-28-2006, 05:44 AM
I converted the .20 size P 51 to electric, I covered it in yellow and installed retracts, I had originally gone with an Axi 2808/16 but I am now in the process of swapping it out to an AXI 2814/12. It flew ok with the 2808 but I wanted more power. In the meantime it sits on the table awaiting a little attention. It is a great plane for a conversion. Good Luck

03-28-2006, 06:02 AM
I forgot the pictures so here they go.

03-28-2006, 03:23 PM
Thanks for the info on your conversion. What were/are you using for batteries? Did you use the Robart retracts in your P-51? If not, what did you use?

Thanks again for the info. Kind of funny, my friend stuck a .25 OS in his, but after looking at it and the information that you guys have provided, I'm thinking of doing this as a kit for conversion myself.

By the way, the Electric conversion is not the same, the WS is 46.5" on the electric version. It's also kind of funny that Tower doesn't list a recommended power combination for this plane. May have to do a little more reading on this one.



03-28-2006, 03:24 PM
Okay, one more quick note. I'm apparently blind. The tower site does recommend the following:
Astroflight 803G geared, 020 brushless, or long can Speed 400

I personally like the AXIs for DD drive.


03-28-2006, 10:28 PM
HOB actually has 2 kits, 1 for the electric conversion and the other one with the 43 inch WS was intended for .20 glow, that kit has been in the market since I remember. I converted that kit to electric because there was a shortage of balsa P 51 in that size range up to about a year ago. It flies great but a little on the fast side. I am using Himodel 3600 mah 3S lipo's. Now there is a whole bunch of ARF's in the 1/10 and 1/12 scale. The one thing I like best is that most guys at the field have no idea where I got it and it looks totally different than anything mass produced. I don't have a video camera at this time but if someone at the field takes a video I will ask them to post it. I really like seeing the robart retracts after take off.

04-07-2006, 02:24 AM
I have an old 43" P-51. It was a glow using an OS 25 plain bearing engine.
It's now converted using a Himaxx 2825/2700kv - cobri gearbox, 4.22/1 - 4 cell lipo 3000mah 15C @ 28a - 8000+RPM on an APC 10X10.
I've been very please with this setup. It is faster than a friends with the listed OS .25 setup. It has made more than a few glow flyers believers in Electric flight.

I have a Tower pro(?) 2915 outrunner in another plane. You can come very close to the same power, with out the gearbox.

If you try the 2915, let us know.


04-07-2006, 02:55 AM
I sitched to flying mostly electrics a few years ago and have made many a believer. By the way the TP 2915 is a bargain for the power it puts out. I am almost finished with my second GP Corsair 750 class converted to electric, I am using an old AXI 2814/12 and also the new one from HP sportsman aviation the extra 20/480 and I am using the TP 2915 in that one. Both of them should be a blast. I haven't decided which motor to put back on my P51 but I have a couple of candidates. My wife thinks that it is to beautiful to fly. She asked me to retire an old HOB .10 Spacewalker that I converted to electric. Tim Nelson from Las Vegas built it for me and it really is a beautifull airplane. It now hangs in my studio.

12-22-2006, 09:13 PM
Hey all, just a quick (okay, probably not, but...) question to all of you out there. Has anyone built/converted a House of Balsa P-51 (43" WS) to electric? If so, what motor/battery/prop combination did you use and you would make any changes?




I have built both electric versions of the House of Balsa kits. One is powered by an Astroflight 020 w/gearbox and the other os powered with the new Astroflight 19. You could go with a motor that could provide 190-250watts of power from a 3S2100- 3S2400 pack. That sould give you a starting point, lots to choose from.