Nitro Planes A-10 Warthog for 95 dollars  
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Nitro Planes A-10 Warthog for 95 dollars - 2/15/2008 3:19:45 AM   
Spawn2300


 

Posts: 9
Joined: 2/14/2008
From: Fredericksburg, VA, USA
Status: offline 		Hello fourm,

I am a total newbie to RC planes and am wondering if I made a mistake or not. I bought a A-10 , twin ducted fan( 370's) in a RTf configuration for 95 dollars. the site said it retails for 295. dollars. basically I am wondering if this will be a good/ fun plane for a beginner, Here i the link Nitro planes A-10 could anyone let me know if this we be a good trainer, fun to fly, can it be upgraded- if so what are your recommendations. etc. Thanks

Mike
       Post #: 1

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/15/2008 4:15:58 PM   
AJ1202


 

Posts: 4226
Joined: 9/1/2005
From: Savannah, GA, USA
Status: offline 		Mike I hate to break the news to you, BUT I think you will be hard pressed to get it to fly.
I know someone that just bought one and can't get it to fly at all, it is very underpowered
Also the A-10 is not exactly a good trainer, in most cases unless you upgrade it to brushless from the git go it is a plane that has to be flown, not just guided along. The A-10 when set up right is a nice flying plane but I don't feel it's a good first plane
I would say put it on the shelf, get something else to learn with then break it out when you have some sticktime and a better feel for flying.

_____________________________

AJ
Well I flew it up there... now how am I supposed to get it down

(in reply to Spawn2300)
       Post #: 2

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/17/2008 4:41:44 AM   
websterphreaky



Posts: 86
Joined: 2/17/2008
From: San Juan Capistrano, CA, USA
Status: offline
quote:

ORIGINAL: Spawn2300

Hello fourm,

I am a total newbie to RC planes and am wondering if I made a mistake or not. I bought a A-10 , twin ducted fan( 370's) in a RTf configuration for 95 dollars. the site said it retails for 295. dollars. basically I am wondering if this will be a good/ fun plane for a beginner, Here i the link Nitro planes A-10 could anyone let me know if this we be a good trainer, fun to fly, can it be upgraded- if so what are your recommendations. etc. Thanks

Mike



Hey Mike,

Don't listen to the "know it all's", there are too many of them with too few credentials to back their blustering. My son and I bought two of these Guanli made ARF A-10's at the first of the year when Nitro first got these newer versions (they sold out almost immediately). We both mostly fly 'lectric and gas Heli's with some intermediate fixed wing gas prop experience. We wanted to take a lick at ducted-fan electric flying. These Guanli's are actually better than the GWS planes that they copied from, but these have 6 blade fans and slightly more powerful brush-motors; it's the 6 blades that make the big difference over the 3 blade GWS A-10's.

While these aren't barn burners, they are a pretty decent flyer (sorry AJ1202 - try first hand experience before you bloviate). Hand launch the first few times into a slight breeze, and take off into a 10 -15 mph wind from the ground to get up fast. Yes, it isn't for a beginner, try a simple high-wing like a piper cub, 3 channel (rudder, elevators, throttle) first.


(in reply to Spawn2300)
       Post #: 3

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/17/2008 7:40:21 PM   
skyhawknut


 

Posts: 474
Joined: 6/9/2002
From: Surrey, BC, CANADA
Status: offline 		Wow - talk about people going on about things they don't know about.

I don't recommend any jet as a first rc plane. Get an E-starter or slow stick and a good name brand radio. Otherwise your just throwing away your money.

(in reply to websterphreaky)
       Post #: 4

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/18/2008 2:17:09 AM   
Spawn2300


 

Posts: 9
Joined: 2/14/2008
From: Fredericksburg, VA, USA
Status: offline 		Hello, I received my plane 2 day ago and i was impressed- for the total of 107 dollars i think i paid-- i got a complete outfit- - the plane, controller, electronics etc. - i did not think much of the first guys post once i started to assemble the A-10 and powered it up -it 's prety cool -- and has enough power to keep me going for a while--- - while maybe not great for the average beginner and not powerful enough for a expert , it was great starter plane for me -- i can see a lot of kids speak in thee forums without knowing what there talking about. thank for the honest reply

(in reply to skyhawknut)
       Post #: 5

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/18/2008 7:05:23 AM   
RysiuM



Posts: 1320
Joined: 4/22/2003
From: Elk Grove, CA, USA
Status: offline
quote:

ORIGINAL: Spawn2300

Hello, I received my plane 2 day ago and i was impressed


I received mine too just a few days ago. I'm putting it together and it is not bad, as I first read about Guanli.
- Tx/Rx - I did not try the range but it works very well and feels good on sticks. I will replace the radio with Futaba 8US as I don't want to fly on 27Mhz.
- Servos are not anything fancy, but they work well, good centering and not much of slack. The only strange thing was that the servo's case screws were not tightened. I fixed that so they will stay.
- ESC is quite bulky, but it can survive a lot. Two FETS B414 (I think they are rated 110A each) should do the job. BEC is 2940 (low drop voltage regulator) that is rated 1.25 (3.5A max) with bigger than standard voltage regulator case (this one is TO-263-3) is more than enough for the radio power. Just do not put more than 3s Lipo on it, or it may get to hot.
- EDF unit is 55 size, 6-blades black fan. At 8.4V one unit takes 8.5A - this is powered from fresh charged battery pack included in the box (8x650mAh NiMh). I'm not sure how this battery would hold powering two EDFs. 16A seems quite high for these little cells. I did not measure thrust.
- All foam parts almost fit perfect. There is just a little filing on the fuselage halves joint, in order to fit wing and horizontal stab.
- The landing gear wire is very soft. It is made of soft steel, not a piano wire. I had to redo the nose wheel wire as it was to tight between two pllywood plates. I will replace the main gear wire too with bent out of piano wire.

So far this plane is hoing together very easy. And if you want to fly 27Mhz, everything is included except 8 AA batteries for TX. For the price I am impressed.

< Message edited by RysiuM -- 2/18/2008 7:25:12 AM >

_____________________________

Mather Aerospace Modelers, Inc.
AMA Gold Leader Club, Charter #1243, Sacramento, CA

(in reply to Spawn2300)
       Post #: 6

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/18/2008 10:07:30 PM   
cyclops2


 

Posts: 1810
Joined: 12/23/2005
From: Frenchtown, NJ, USA
Status: offline
Do not be suprised if the plane is a FAST ground runner. 2... 375 motors are going to pull amps. inside of the 55's. So what should happen is, the NEW & not fully cycled battery pack will collapse to about 4 volts. !!!!!!!!!!!!!!!!!DO NOT hand launch this plane !!!!!!!!!!!!!!! ground takeoffs only for the first 10 flight attempts.
650 mahr cells are wimpy. Ducted fans EAT power compared to a propellor.

No harm if it is low on power.

I wish you good luck.

I have 2 GWS A-10's.......1 has 144 watts into the 2 Hyperion brushless motors driving 2 GWS EDF 40 fans. 12 oz of thrust on 12 volts @ 12 amps. Flys very nice scale in calm days. Weighs 15 0z.

Other one has a nice prop in the nose and goes vertical. Weighs 15 oz.

Rich

(in reply to RysiuM)
       Post #: 7

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/18/2008 10:50:31 PM   
Spawn2300


 

Posts: 9
Joined: 2/14/2008
From: Fredericksburg, VA, USA
Status: offline 		Hello RysiuM , you seem to have a pretty good understanding of the engines and battery packs etc. Could you give me some advice on what i should get as far a engines and battery's and a speed controller to modify this plane. I recently became a dad and my girlfriend is not working ( raising our child) so I'm going to have to be... well I can't buy new toys like i like right now so I'm thinking if i upgrade the A-10 it will keep me busy for a while and I love the size of the plane. any suggestions or links on what engine and EDF''s work with what batteries and speed controllers would be helpful.

Thanks in advance!

Mike

(in reply to RysiuM)
       Post #: 8

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/18/2008 11:16:51 PM   
RysiuM



Posts: 1320
Joined: 4/22/2003
From: Elk Grove, CA, USA
Status: offline
quote:

ORIGINAL: Spawn2300

Hello RysiuM , you seem to have a pretty good understanding of the engines and battery packs etc.


My understanding is related to prop-type power. With DF units I have had only bad experience. That darn thing never worked for me. The fan is spinning, making a lot of noise, motor gets hot, taks a lot of current but thrust is minimal. I don't know how that thing can even fly. So welcome to the club.

I'm hoping someone will tell me if this setup out of the box (maybe except battery) will work. I'm affraid, that 2 lipos will not have enough voltage to turn fans fast enough. Is it correct? I believe that on fully charged 2s 2100mAh thy will stay around 7.5V gibing about 7.5A to each motor. So it is 110W for the plane. Will it do the job?

I'm sure that loading 3s LiPo will kill these little motors in a matter of minutes. So how high on voltage and current can I go? Maybe 3s A123 will work?

As you see I have more questions than answeres, but there are guys on this forum who know that stuff - let's them speak.


_____________________________

Mather Aerospace Modelers, Inc.
AMA Gold Leader Club, Charter #1243, Sacramento, CA

(in reply to Spawn2300)
       Post #: 9

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/19/2008 5:34:21 AM   
AGUSTIN HERNANDEZ


 

Posts: 4
Joined: 1/22/2006
From: PHARR, TX, USA
Status: offline 		I have one and all that you said is true. AJ1202 VERY LOW ON POWER AND RADIO DON'T WORK . BUT PLANE IS VERY NICE LOOKING.

< Message edited by AGUSTIN HERNANDEZ -- 2/22/2008 3:49:05 AM >

(in reply to AJ1202)
       Post #: 10

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/19/2008 5:46:45 AM   
skyhawknut


 

Posts: 474
Joined: 6/9/2002
From: Surrey, BC, CANADA
Status: offline 		You need at least an 8 cell pack of GP 2200's Your battery needs to supply the amps required to fly the plane. I know the GWS version with the 300 brushed motors either needs an 8 cell pack like above - or a 3 cell lipoly. They will not last very long at full power(on 3S), but should last a little while with throttle management. (at least the GWS motors will). After that - upgrade to brushless. I know there are a bunch (including mine) flying on the GWS 20 mm inrunner motors and they work very well.

If your going to stick with older batteries, you need at least 8 cells perferably in the sub-A catagory. You MAY get away with 8 AA's if they are of a larger capacity (700mah or more)

(in reply to AGUSTIN HERNANDEZ)
       Post #: 11

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/19/2008 8:24:32 AM   
RysiuM



Posts: 1320
Joined: 4/22/2003
From: Elk Grove, CA, USA
Status: offline 		How much power do I need on brushless? What kind of numbers should I expect?

At BPHobbies.com I found Feigao 1308422S with Kv=4255 , that would run on 2s Lipo. The info on their site is that at 7.2V EDF 55 will take 7.8A (56W) with thrust 6.6oz each. Is it enough?

The other I found at the same place is Feigao 1308415L . This motor has lower Kv = 3867 and max current = 16A so it should run on 3s. If it takes over 10A on this EDF the power would be high.

But before I start investing in BL setup I will run it on stock brushed motors on 3s as long as they last.

The plane is going together very easy - foam parts fit much much better than any other GWS I put together. The only complain I might have is, that the foam is very soft and easy to scratch.

The only modification I did was redesigning stearing of the front wheel. The slotted servo horn came broken so I couldn't use it. And at the same time I did not like the original design, as it was limiting the servo movement to about half of the possible travel. Instead of describing what I did, I show picture - it explains everything.




_____________________________

Mather Aerospace Modelers, Inc.
AMA Gold Leader Club, Charter #1243, Sacramento, CA

(in reply to skyhawknut)
       Post #: 12

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/19/2008 9:20:31 AM   
Fresnojay76


 

Posts: 34
Joined: 2/18/2008
From: Clovis, CA, USA
Status: offline 		Ok for those interested in a brushless upgrade I can offer some ideas and directions to go.

1. 20mm diameter motor will be your best bet for power and size.

2. You will need 2 ESC's or 1 for each motor rated around 18A-25A.

3. Brands or 20mm inrunners would be GWS, E-flite Park 370 or 400 series, Hacker, Himaxx 2015 or 2025 series. The E-flite park 370 = Himaxx 2015, E-flite Park 400 = Himaxx 2025. Hacker has motors in same ranges but I dont know the numbers off hand.

4. The motor Kv rating should be in the 3600Kv to 4200Kv range.

5. Battery would be a 3s 2200mah range pack with a "C" rating of at least 20C.

Now these are just suggestions and I am NOT claiming to know it all but do have some experience in EDF. I have had in the past some EDF planes in the 55mm fan size and these were the motors I was looking at. I have however had the E-flite Park 400 4200Kv motor and has been very reliable when run with a heatsink on it. I would recommend running any brushless motor with a heatsink when you can do so. They may not need it but wouldn't hurt and if anything extend the life of the motor. Air flow is critial to the ESC's in EDF applications as the Amp draw on EDF's tend to be rather high in some cases. Again I am NOT playing a know it all just throwing out bits of info I have learned off of here and RCG to help others. I have attatched a pic of my current pride and joy just to show I do actually have some experience from which I offer.

Jason

[image][/image]

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< Message edited by Fresnojay76 -- 2/19/2008 9:33:22 AM >

(in reply to RysiuM)
       Post #: 13

RE: Nitro Planes A-10 Warthog for 95 dollars - 2/19/2008 2:25:39 PM