A-10 Fighter foamie - WattFlyer RC Electric Flight Forums - Discuss radio control eflight

Electric Ducted Fan Jets Discuss electric ducted fan jets here including setup tips, power systems, flying techniques, etc.

A-10 Fighter foamie

Old 06-18-2009, 12:05 PM
  #1  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Build Review A-10 Fighter foamie

Hi All

Just bought A-10 guanli foamy fighter, Brush less motors two 30 esc and installed my own TX/Rx gear and lipo battery.

I was wondering if any one has thought or tried to carry out a mod that i was toying with and thinking of doing.
Not sure it will work.

As i want the A-10 to fly Fast with more thrust output and pull out power.

Constructive Feedback welcome

Picture below of A-10 in original form and picture of proposed mod to A-10 (photo fixed to show what I'm thinking of doing.)

Regards

Samste
Attached Thumbnails Click image for larger version

Name:	A10 JET PLANE [Desktop Resolution].JPG
Views:	225
Size:	120.9 KB
ID:	103636   Click image for larger version

Name:	A10 JET PLANE PLANNED MOD.jpg
Views:	304
Size:	85.7 KB
ID:	103637  
samste is offline  
Old 06-18-2009, 04:48 PM
  #2  
USMC_VTOL_Mech
Member
 
Join Date: Feb 2008
Location: Glendale Ca
Posts: 187
Default

Samste
Woooo man you are gonna be taxing that battery hard....
BTW adding the extra edf isn't gonna make it faster......it's just gonna give it more punch out of the hole
Here is a 15 sec vid of my GWS A-10 (your guanli is almost a direct copy)
Mine moves out pretty good and is a great flyer
I used 2 55 MM XF fans (from the phase 3 f-16) thrust tubes in the nacelles, modded fuse to accept larger battery (3300 Mah)
Word of warning though....once the speed builds up in this plane the wing loading becomes very high. I would highly recomend glueing the wing on.
This is my fourth a-10 as the first three suffered catstrophic wing and fusalage seperation mid flight while flying inverted

[media]http://www.youtube.com/watch?v=dVnTsHpqyC4[/media]
Attached Thumbnails Click image for larger version

Name:	planes and stuff 157.jpg
Views:	182
Size:	24.9 KB
ID:	103646   Click image for larger version

Name:	planes and stuff 158.jpg
Views:	215
Size:	25.2 KB
ID:	103647   Click image for larger version

Name:	planes and stuff 159.jpg
Views:	194
Size:	25.0 KB
ID:	103648  
USMC_VTOL_Mech is offline  
Old 06-19-2009, 08:33 AM
  #3  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Post

[

Thanks for the response

That is a good looking plane you have, great pictures and video.

Originally Posted by USMC_VTOL_Mech View Post
Samste
Woooo man you are gonna be taxing that battery hard....
BTW adding the extra edf isn't gonna make it faster......it's just gonna give it more punch out of the hole
Here is a 15 sec vid of my GWS A-10 (your guanli is almost a direct copy)
Mine moves out pretty good and is a great flyer
I used 2 55 MM XF fans (from the phase 3 f-16) thrust tubes in the nacelles, modded fuse to accept larger battery (3300 Mah)
Word of warning though....once the speed builds up in this plane the wing loading becomes very high. I would highly recomend glueing the wing on.
This is my fourth a-10 as the first three suffered catstrophic wing and fusalage seperation mid flight while flying inverted
Yes you are right it would be taxing on battery !

I just took it out for a second flight as i had just bought it recently and wasn't really impressed with the power output on the first flight.
But i was only using stock lipo 12c 1500ma that came with it so i was waiting for the new battery i ordered that i just received in mail today.

On second flight i used the new 2800ma 35 c lipo that i bought and wow wow wow that thing goes like a rocket.
The Adrenalin was pumping thats for sure.
I didn't think it would make much difference, but i was wrong. Reckon stock battery was faulty or well under rated.
The A-10 flew great, what was i thinking before.

One MAJOR issue after landing safely is pictured below.
Both sides of EDF et mounting wings fractured.
Luckily didn't snap off while in flight.

What can you recommend in repair and strengthening.
Obviously this is a major problem, maybe the guanli is almost a direct copy of GWS but not strength wise ?

Picture of fracture
Attached Thumbnails Click image for larger version

Name:	Fracture.JPG
Views:	208
Size:	79.5 KB
ID:	103707  
samste is offline  
Old 06-19-2009, 12:38 PM
  #4  
USMC_VTOL_Mech
Member
 
Join Date: Feb 2008
Location: Glendale Ca
Posts: 187
Default

Samste
Wow I didn't realize you had such a tiny battery in there.
yeah no wonder it was a dog.......I am surprised that battery (1500 Mah 10C) was even able to fly it
Glad you got it flying better.
As for the cracking of the nacelle pods mounting that is a problem. With the gws one since it's a kit that problem was adressed with carbon rods when I built mine.
What I would do is take a nice sharp bamboo skewer and starting outside the nacelle insert it slowly( make sure you go straight!) all the way through into the other side nacelle. If you do one near the front of the nacelle and one near the rear that should be plenty
Hope this helps!
USMC_VTOL_Mech is offline  
Old 06-19-2009, 12:58 PM
  #5  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Default

Originally Posted by USMC_VTOL_Mech View Post
Samste
Wow I didn't realize you had such a tiny battery in there.
yeah no wonder it was a dog.......I am surprised that battery (1500 Mah 10C) was even able to fly it
Glad you got it flying better.
As for the cracking of the nacelle pods mounting that is a problem. With the gws one since it's a kit that problem was adressed with carbon rods when I built mine.
What I would do is take a nice sharp bamboo skewer and starting outside the nacelle insert it slowly( make sure you go straight!) all the way through into the other side nacelle. If you do one near the front of the nacelle and one near the rear that should be plenty
Hope this helps!
Thanks for the Tip, thats a good idea with the bamboo skewers.
I will be on to that straight away.

Yeah the stock battery definitely was the issue i guess you can't ask for much when i got it so cheap from overseas supplier.
But its definitely a fun flyer now with the new battery.

Did you reinforce the wings as well ?

Regards
Samste
samste is offline  
Old 06-19-2009, 04:00 PM
  #6  
USMC_VTOL_Mech
Member
 
Join Date: Feb 2008
Location: Glendale Ca
Posts: 187
Default

samste
Oh yes I ran a carbon rod almost wingtip to wingtip right behind the landing gear pods on the bottom
Do you belly land yours or land on the wheels?
I belly land and a carbon rod was also needed in the tail because the verticles would hit the ground first on landing
It is a really fun plane and I have actually flown it with 2 2100 mah in mine......
Flew fine and handlaunched easy to
USMC_VTOL_Mech is offline  
Old 06-20-2009, 08:54 AM
  #7  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Post

Hi USMC_VTOL_Mech

Originally Posted by USMC_VTOL_Mech View Post
samste
Do you belly land yours or land on the wheels?
Yes i did remove all wheels for belly landing but i did not get a chance to belly land today.
Unfortunately my plane decided to snap in half during a sharp upward maneuver during flight, obviously the g forces were great and main body was weak.
I should have glued the main wing on for added main body strength and carbon rods/bamboo skewers through main body on either sides and top for added strength.

I guess its a learning experience. well i have to order a new body and start again.
But in mean time will try and repair it and see how i go.

Pictures of aftermath below
Attached Thumbnails Click image for larger version

Name:	IMGP2380 Snap.JPG
Views:	185
Size:	172.7 KB
ID:	103760   Click image for larger version

Name:	IMGP2381 Snap.JPG
Views:	211
Size:	195.9 KB
ID:	103761  
samste is offline  
Old 06-20-2009, 09:37 AM
  #8  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Build Review

Repair photos of a-10 using toothpicks to hold in place while glue sets.

By the way Bamboo skewers worked a treat on edf mounts as they held together well and out stood impact of above carnage.
Attached Thumbnails Click image for larger version

Name:	A-10  Repair in progress.JPG
Views:	136
Size:	139.0 KB
ID:	103762   Click image for larger version

Name:	Repair A-10 view 2.JPG
Views:	148
Size:	161.9 KB
ID:	103763   Click image for larger version

Name:	IMGP2387 [Desktop Resolution].JPG
Views:	156
Size:	164.7 KB
ID:	103835   Click image for larger version

Name:	IMGP2388 [Desktop Resolution].JPG
Views:	145
Size:	201.9 KB
ID:	103836   Click image for larger version

Name:	IMGP2430 [Desktop Resolution].JPG
Views:	161
Size:	166.0 KB
ID:	103844  


Last edited by samste; 06-21-2009 at 10:31 AM.
samste is offline  
Old 06-26-2009, 04:13 PM
  #9  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Post

Hi guys

Have had good weather and taken out the A 10 for several flights.
No dramas so far except for some several hard landings on grass
which i have notice has put a lot of stress on body causing some cracking
mainly near the battery compartment area and tail.

Belly landing on grass, Wheels removed

Was thinking of buying a plank of balsa to glue to under carriage from Nose to Tail for strength, any thoughts on this ?

I was going to use about 5mm thick sheet custom cut to follow the under carriage widths.

Samste
samste is offline  
Old 06-26-2009, 11:34 PM
  #10  
USMC_VTOL_Mech
Member
 
Join Date: Feb 2008
Location: Glendale Ca
Posts: 187
Default

samste
I used long pieces of depron for skids
One piece on the bottom of each wheel housing and one on the bottom of where the stock battery hole is all the way to the opening in the front of the nose
I sparred the tail section so that is no issue with mine


Bamboo spars work well huh?
USMC_VTOL_Mech is offline  
Old 06-27-2009, 04:21 AM
  #11  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Default

Hi USMC_VTOL_Mech

Originally Posted by USMC_VTOL_Mech View Post
samste
I used long pieces of depron for skids
One piece on the bottom of each wheel housing and one on the bottom of where the stock battery hole is all the way to the opening in the front of the nose
I sparred the tail section so that is no issue with mine


Bamboo spars work well huh?
Thanks for the tip and advice may give that a try.

Yes the bamboo spars work well Thanks again

Samste
samste is offline  
Old 06-27-2009, 07:58 AM
  #12  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Default

Hi Guys

Picture of under carriage strengthening using carbon rod for wing and carbon plank for carriage.

Hi USMC_VTOL_Mech
Do you have a picture of the depron on your under carriage as was going to use 6mm balsa sheet instead of depron like you suggest, just wasn't sure how you did the underside.
Thanks

P.s
In picture look at wing on right, lost part of wing as tree jumped out of nowhere and clipped the tree with the edge of wing had to glue back on, as you can see the repair job. Well thats the story I'm sticking too !

Samste
Attached Thumbnails Click image for larger version

Name:	IMGP2454 [Desktop Resolution].JPG
Views:	184
Size:	211.1 KB
ID:	104209  
samste is offline  
Old 06-27-2009, 11:03 PM
  #13  
USMC_VTOL_Mech
Member
 
Join Date: Feb 2008
Location: Glendale Ca
Posts: 187
Default

samste
sorry no pics
i am away from home for work right now
I just put depron on the landing gear pods and about the first 4 inches of the nose from the airhole rearwards
I also did my wing spar behind the landing gear pods so I could use one piece of carbon rod
yours looks like it should work fine though
Great job man!
USMC_VTOL_Mech is offline  
Old 07-30-2009, 11:36 AM
  #14  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Default

2nd A-10 nearly finished as first A-10 Took a beating.

Motor has massive 800grams thrust per unit even when customed to 55mm edfs so i could fit in narcelles.
Stock thrust was only 380 grams thrust each unit

64mm diameter impeller fan - weight: 73g/2.575oz
Volts(V) Current(A) Thrust(g/oz) Power(W) MOTOR
11.1 39 850/29.983 432 VMH300XL5250KV

2 x 40 amp escs

11.1voltr 3000ma 35c lipo

Test run full throttle 68 amps draw from battery.
I will only be bursting full power on maiden as battery wont cope on full throttle for long time.

Little concerned with esc may need to get 50amps as running very warm in the 30 amp range and still havent done a long run test yet before maiden.
Attached Thumbnails Click image for larger version

Name:	IMGP2464 [Desktop Resolution].JPG
Views:	103
Size:	158.7 KB
ID:	106325   Click image for larger version

Name:	IMGP2465 [Desktop Resolution].JPG
Views:	121
Size:	181.0 KB
ID:	106326   Click image for larger version

Name:	IMGP2466 [Desktop Resolution].JPG
Views:	120
Size:	145.7 KB
ID:	106327   Click image for larger version

Name:	IMGP2467 [Desktop Resolution].JPG
Views:	123
Size:	187.8 KB
ID:	106328   Click image for larger version

Name:	IMGP2468 [Desktop Resolution].JPG
Views:	125
Size:	162.5 KB
ID:	106329  

Click image for larger version

Name:	IMGP2592 [Desktop Resolution].JPG
Views:	125
Size:	148.4 KB
ID:	106330   Click image for larger version

Name:	IMGP2597 [Desktop Resolution].JPG
Views:	123
Size:	95.1 KB
ID:	106331   Click image for larger version

Name:	f6ff_1.jpg
Views:	137
Size:	26.0 KB
ID:	106332  
samste is offline  
Old 07-30-2009, 01:15 PM
  #15  
Don Sims
Administrator
 
Don Sims's Avatar
 
Join Date: Sep 2005
Location: Middle Tennessee
Posts: 13,614
Default

Very nice A-10 samste. Good luck with that maiden!
Don Sims is offline  
Old 08-02-2009, 11:11 AM
  #16  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Build Review

Took the A-10 out for maiden, Its a super fast setup. an absolute vertical and rolls going up.
Only Pushed her at full throttle a couple of times then flew here at approx 40 % throttle

Love the A-10

Only took here up for two minutes and brought her down check the esc they were very very warm (hot ) even after two minutes of unscrewing carbon spurs for under carriage and wing support to get to esc.

Ordered 50 amp esc's to swap out as 38 amps loading on each esc is to much for the 40 amp esc's in there.

Does any one have some pics of cooling methods for esc in A-10.

I remember something about some spoons or something used for intake air for cooling the inside Esc's.
Any pictures would be great Help.

Thanks in Advance

Samste
samste is offline  
Old 08-03-2009, 05:33 AM
  #17  
USMC_VTOL_Mech
Member
 
Join Date: Feb 2008
Location: Glendale Ca
Posts: 187
Default

Samste
Yes I put half spoons under the nacelles for ESC cooling.
It will probably be alot better with larger ESC's
Good news Samste.........
I just picked up another A-10!
this one is gonna be built with alpha 5 blade fans
I wanted to do what you did and use 64 MM fans BUT I didn't want the issue you are having....huge esc's and big battery....
I want this one to fly on 4 cell 2200's
I just need to figure out what motors to use.
I was gonna use GWS 3900 KV "green" motors but they of course will not bolt into the alpha fan units
Need to use something else...maybe Dons 4000 KV
USMC_VTOL_Mech is offline  
Old 08-03-2009, 08:28 AM
  #18  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Default

Hi USMC_VTOL_Mech

Thanks for that i thought i read somewhere, some one did that and it helped.

Good news with the new A-10, Its a great eye catcher plane.
I was down the flying field and everyone commented how good she looks and the amount of thrust and go she has.

In regards with the 64mm edfs bought off ethobby, i only used the motors of the 64mm edfs.
and refitted then into the new 55mm edfs off hobby king so they would fit into the nacelles.
as the motors 5250kv is the power i wanted.
Balancing was a little tricky though and fixing.
Though i noticed now i could of bought already done and cheaper,link below
http://www.fmhobbies.com/servlet/the...ls-55mm/Detail

My Esc have arrived today, I don't think i will have an issue now,there huge and the heat sink big..

I would be looking at min 4000kv for the motors as the A-10 stock comes with 3200kv pic below of the stock motors

As for the high amp draw on the A-10, my amp tests shows
It Max's at 73 amps at full throttle and at each esc its drawing approx 36 amps at full throttle.
I would not be running at full throttle all the time as its so quick, but i could see doing 5-10 sec burst max.
From the maiden flight throttle was approx 50%
Will try and do a thrust test video clip later.
Attached Thumbnails Click image for larger version

Name:	IMGP2607 [Desktop Resolution].JPG
Views:	97
Size:	168.5 KB
ID:	106663   Click image for larger version

Name:	IMGP2608 [Desktop Resolution].JPG
Views:	106
Size:	164.5 KB
ID:	106680  

Last edited by samste; 08-03-2009 at 02:31 PM.
samste is offline  
Old 08-03-2009, 01:46 PM
  #19  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Build Review

Been busy Today as wanted to finish off A-10 ESC,cooling,bracing underside.

Pics below of how the cooling setup worked out.

Tested ESC they were great only slightly warm on full throttle burst
Attached Thumbnails Click image for larger version

Name:	IMGP2609 [Desktop Resolution].JPG
Views:	104
Size:	204.3 KB
ID:	106669   Click image for larger version

Name:	IMGP2610 [Desktop Resolution].JPG
Views:	104
Size:	137.4 KB
ID:	106670   Click image for larger version

Name:	IMGP2611 [Desktop Resolution].JPG
Views:	109
Size:	249.0 KB
ID:	106671   Click image for larger version

Name:	IMGP2612 [Desktop Resolution].JPG
Views:	98
Size:	179.9 KB
ID:	106672   Click image for larger version

Name:	IMGP2614 [Desktop Resolution].JPG
Views:	103
Size:	259.4 KB
ID:	106673  

Click image for larger version

Name:	IMGP2615 [Desktop Resolution].JPG
Views:	109
Size:	275.5 KB
ID:	106674   Click image for larger version

Name:	IMGP2617 [Desktop Resolution].JPG
Views:	103
Size:	243.4 KB
ID:	106675   Click image for larger version

Name:	IMGP2616 [Desktop Resolution].JPG
Views:	107
Size:	291.7 KB
ID:	106676   Click image for larger version

Name:	IMGP2619 [Desktop Resolution].JPG
Views:	110
Size:	152.5 KB
ID:	106677   Click image for larger version

Name:	IMGP2620 [Desktop Resolution].JPG
Views:	104
Size:	209.6 KB
ID:	106678  

samste is offline  
Old 08-03-2009, 02:58 PM
  #20  
USMC_VTOL_Mech
Member
 
Join Date: Feb 2008
Location: Glendale Ca
Posts: 187
Default

Samste
I thought you were running 64's for some reason. My bad. But you know what? GWS 64 MM fans push right into the front of the A10 naelles perfectly!
I wanna build my new one but still need ESC's. I should probably put in a hobbycity order this week and make sure I grab 2 for the A10. I just nmeed ones that are 4 cell capable. I think I am gonna fully glass this one
USMC_VTOL_Mech is offline  
Old 08-03-2009, 10:04 PM
  #21  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Default

Originally Posted by USMC_VTOL_Mech View Post
Samste
But you know what? GWS 64 MM fans push right into the front of the A10 naelles perfectly!

I think I am gonna fully glass this one
I thought of doing that with the 64mm EDF's but for some reason mine did not fit, and i didn't wont to cut away from the strength of nacelles, as it would of been too much i thought.
Unless there a different styles of EDF's and the measurements and outside diameter are different ?


Definitely great idea with the glassing, I actually was considering that also but just not sure how much extra weight it would add and how i would go about doing this without melting foam.
I did buy some shell shock made from smooth-on.com trial pack.
Tried it on some scrap foam its not bad very thick to brush on and needs several coats to be a hard cover and its not clear, beige color. It definitely added extra weight to scrap foam.
The A-10 foam isn't that tough is it.
I wonder in you can just coat it with glass (fiberglassing) without matting and that would be OK, like i said not much experience in glassing.
Attached Thumbnails Click image for larger version

Name:	IMGP2621 [Desktop Resolution].JPG
Views:	110
Size:	157.0 KB
ID:	106692  
samste is offline  
Old 08-04-2009, 01:38 AM
  #22  
USMC_VTOL_Mech
Member
 
Join Date: Feb 2008
Location: Glendale Ca
Posts: 187
Default

samste
Interesting pic. I have to admit I have not physicly tried to push one in like you did I was just going by what info i have gathered on the net. Seems it's not a direct push in unless the GWS 64 MM push in......I have some I could find out really easy.
Glassed planes are great man.....
for the slight increase in wieght you strengthen your airframe 100%
I usually use WBPU and 1/2 oz or 3/4 oz glass.
Sometimes for extremely high strength I will use z-poxy finishing resin
You can actually apply the resin without the glass but it tends to crack easy with no material
it's really easy once you get the hang of doing it.....
USMC_VTOL_Mech is offline  
Old 08-04-2009, 06:36 AM
  #23  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Default

Hi USMC_VTOL_Mech

I have have several spare nacelles as i have a arf a-10 kit spare i picked up cheap off ebay a while ago.
Its always good to have a couple of spare body kits of the same plane especially the way i fly , no guts no glory and also for modifications etc.

I just picked up today a small pot of water based polyurethane clear gloss.
Was going to do a sample test on some scrap foam and see how it goes Tonight.
I'm not sure if this is similar to what people use, but hey gotta give it a try and see.
Attached Thumbnails Click image for larger version

Name:	IMGP2622 [Desktop Resolution].JPG
Views:	100
Size:	216.7 KB
ID:	106706  
samste is offline  
Old 08-04-2009, 11:20 PM
  #24  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Default

Water based polyurethane clear gloss Works Well.
I cannot believe i haven't done this before.
The picture shows it but actually looking at it in real life with the gloss finish its good

Before and after shots below

Samste
Attached Thumbnails Click image for larger version

Name:	IMGP2626 [Desktop Resolution].JPG
Views:	117
Size:	288.7 KB
ID:	106727   Click image for larger version

Name:	IMGP2614 [Desktop Resolution].JPG
Views:	123
Size:	259.4 KB
ID:	106728  
samste is offline  
Old 08-06-2009, 09:09 PM
  #25  
samste
Member
Thread Starter
 
Join Date: Apr 2009
Location: Australia
Posts: 119
Default

A quick note

Must remember not to much Water based polyurethane clear gloss on hinges of ailerons and elevator as had little bit trouble getting them to move smoothly,

Samste
samste is offline  

Quick Reply: A-10 Fighter foamie


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.

Page generated in 0.17227 seconds with 53 queries