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BalsaUSA Fokker DVIII conversion? - 4/21/2005 6:46 PM   
rfdias


 

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From: , VA, USA
Status: offline 		Folks,
I have been working on a BalsaUSA Fokker DVIII all winter...framing is almost complete. I had intended it to run on gas (gas, not nitro). However, after looking at the prices of reasonable gasoline powerplants and all that accompanies them, I am seriously considering going electric. I was looking through the posts about the SIG rascal 1000 (?) and related sites within the post. The combo of an AXI4130/20, a 16-10 prop, Jeti77 esc, running on 24-2400 nicads (I'm not ready to make the lipo jump just quite yet) seems like an interesting possibility. I like the AXI motors and have experience with a smaller one flying a 48" trainer. I would like the Fokker to fly with scale-like qualities...some loops, a few rolls. The plane specs are as follows: 12-14# allup weight (gas power), 1100 sqin wing area, 25-30 oz/sqft loading. should be flying on a 1.2 nitro 4-stroke or G23 gas. I would greatly appreciate any help/ideas you all have to offer.
thanks, Bob

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RE: BalsaUSA Fokker DVIII conversion? - 4/22/2005 2:13 AM   
GWR



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From: Edison, NJ, USA
Status: offline 		Balsa USA is pushing electric power for one of the bipes they make. They also say it can use a G26. Try a similar setup to what they recommend for that plane.

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RE: BalsaUSA Fokker DVIII conversion? - 4/22/2005 12:01 PM   
c-grain


 

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Status: offline 		Bob,I am happy to see you choosing a fighter from theWWI era!I'm just starting a BUSA Neiuport 28c-1.Power will be:AXI 4130-20 on 5s-3p LIPO/22-24"wood prop!I've been doing tests with 18x10 to 24x8 props using a Castle Phoenix 80 esc.with great results!I too plan to fly in a scale-like manner(30-35 MPH,Dive-initiated loops,stall turns,rolls etc.)The real beauty of these birds is that they were so slow compared to other fighter planes of later years that you only need about 40-50Watts per Lb. to fly scale-like!!!The 4130-20 can deliver 800+ watts with ease & still be within it's allowed current limit with the bigger props on a lower voltage.I fly at 8000' in Colorado so I could'nt afford the high wing loading of a plane like the D-8.the Neiuport has over 1600sq.in. of area.I'm scratch-building from BUSA plans and am sure it won't weigh over 11LBS>!!!Can you post pics. of the D-8?Lets try to keep this thread alive.I personally think that the WWI planes are perfect subjects for E-power!The ability to swing very large efficient scale props is definitly an advantage.

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RE: BalsaUSA Fokker DVIII conversion? - 4/22/2005 7:46 PM   
luc-RCU



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From: Courbevoie, FRANCE
Status: offline 		woww 5S on 11 lbs... In have the GP DR1 on 5S2P, but it only weighs 8lbs...

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< Message edited by luc-RCU -- 4/22/2005 7:47 PM >

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RE: BalsaUSA Fokker DVIII conversion? - 4/24/2005 3:40 PM   
c-grain


 

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From: blanca, CO, USA
Status: offline 		Iuc,niceDR-1!!!What's the span?The Neiuport is 80" and BUSA says 12-14LBS.What dia.& pitch are you using?How many amps& what motor-etc?

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RE: BalsaUSA Fokker DVIII conversion? - 4/24/2005 5:45 PM   
luc-RCU



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From: Courbevoie, FRANCE
Status: offline 		that's the Great planes DR1 ; all data are here
http://www.greatplanes.com/airplanes/gpma1380.html
I use a old geared HP brushless that I had on a sailplane with a 17*8 wood prop.
I only get 500W+ on my 5S2P irate 2200 pack. Flight is rather slow (as should be). I only can perform loops. It takes off in 10ft and has a strong tendency to nose in on landings (grass and type of plane)...but as wing loading is low, that's no problem

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RE: BalsaUSA Fokker DVIII conversion? - 5/15/2005 6:35 PM   
eflier


 

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From: chilliwack, BC, CHILE
Status: offline 		what a coincidence I happened to tune in here ! ....I too am building a 1/4 scale
D V111/EV it's to go along with my other WW1 fighters..for power in my 90" DR1,
...I used the Axi 4130/20 on a 2 to 1 belt drive, 20 nimh cells and a 28X14 prop. this gives ten minutes easily of very spritely flight. It likely would go more as when I land it there's still lotsa power left..... been flying this model for 5 years now, and it still excites me when I " fire it up " especially when a friend who built from the same plans brings his along and we fly in tandem looking for Camels.
I intend to use an Axi motor in my D V111 likely geared to swing a scale sized prop.
at the Chilliwack fly in we usually have a whole Jasta what with all the different Fokker models that show up..If Fokker built it in WW 1...there's likely a model of it here. I built a 1/5 sized D V111 a couple years back, and liked it so much I am doing a bigger one. I'm just to the point of installing L/G and hangin' the fuselage under the wing. Then it'l be time for the lozenge paint job.

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RE: BalsaUSA Fokker DVIII conversion? - 12/8/2009 6:35 PM   
jaysplains


 

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From: omemee, ON, CANADA
Status: offline 		hey all i have two balsa usa plane the d8 and d7 the d7 is 19lbs and i am using a 63 74 170kv on 10 cell with 22-10 prop and my d8 is 12lbs and it has a 50 65 270kv on 6 cell and a 19-12 prop and both have power to spair and the scale flying is way better then gas you can really feel the plane at low power

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RE: BalsaUSA Fokker DVIII conversion? - 12/9/2009 10:43 AM   
tIANci



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Status: offline 		I would die for an Albatross as a show plane to own. Sigh ... if only I had the skills to build one. Anyways, for a 12 lbs plane the 4130 would be just nice giving you maybe 75W/lb on 6S but I would rather go with a 5320 or any equivalent, that gives you some power in reserve and you want something bigger/heavier up front too.

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RE: BalsaUSA Fokker DVIII conversion? - 2/3/2010 5:57 PM   
viva_peru


 

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Status: offline 		rfdias;

I think that the 4130/20 will work, but I think that it would probably be a better bet to go to the next sized motor, such as 5320/28 or similar. Look for a motor with a Kv in the 250-300 range and I think that you will be O.K. I looked at converting Nieuport 28 a while back and when I ran the numbers it seem that the 4130/20 was being pushed too hard. The efficiency of that motor is not the best either once the current goes past 40 amps. The larger motor will also allow you to spin a larger prop, probably in the 18-19 inch range while keeping the current at reasonable levels.

Good luck,

Teo

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