A-10's
 

Attached is a pic of our A-10 to be kitted next yr.
All wood construction, laser cut parts.

50" wingspan
MIDI fans
Hacker B50-18S motors
60 Amp Castles Creations controlers
10 ea. 3300 ma/hr. NmHi cells, per motor.
EJF retracts
7 Lbs RTF

30" wingspan
Micro fans
Hacker B20-22S motors
25 Amp Castle Creations controlers
12 950 ma/hr. NmHi cells
20 oz. RTF

SouthEast Model Products
Orlando, Fl.

Question
 

I live in Orlando too. Are you a business or a club? I am looking to learn more about EDF and the possible power of these EDF setups. speed, running times etc. Just curious as to what Southeast model products is all about.
Thanks
B

A-10's
 

I live in Tampa and will be interested in this aircraft. When you put it on the markrt, please let me know.

RE: A-10's
 

There is a 62" span model being sold by Wowplanes based near you in Merritt Island FL that you may be interested in checking out. We are shipping now.

Website http://www.wowplanes.com

RE: A-10's
 

Why dig up a thread that's 5 years old??

RE: A-10's
 

wowplanes are foam.
I'd like to see balsa kit for A10 and LearJet.
Thank you,
Kostya

RE: A-10's
 

Sorry Skyhawknut, I forgot to look at the date. Thanks for pointing that out.

RE: A-10's
 

For many years, I have experimented with balsa kits and with foam ARFs, and here are my two cents worth.

Balsa kits take a lot of time and effort to build and can be made to look very nice. However, they are not very strong and in case of a hard crash, not very easy to repair.

Bare foam ARFs do not look nice because of the rough surface, and they are not resistant to dings. Also bare foam is not sturdy enough for large size planes, anything above 25 to 30 ". However they are very easy to repair if crashed.

I wanted something that did not take too much time and effort to build, looked as good as a balsa kit, but was strong enough for 60" span planes and easy to repair.

To achieve the best of both worlds, I played around with combining the best qualities of foam and balsa. If foam is sheeted with 1/32" balsa if looks and behaves nothing like foam. Since sheeting can be very time and labor intensive if done with epoxy, I used contact adhesive Monsanto M77. This cuts down the time tremendously because there is no glue drying time involved. Once sheeted the model looks just as nice as a balsa kit but needs a lot less time and effort to build. It is more durable than a balsa kit because of the solid construction. It is very ding resistant compared to bare foam. Also it is very easy to repair.

RE: A-10's
 

Hello Wowplanes!
Yes, I need to agree with you. I just seen your build thread and how it all made up. Beatiful. First time I checked your website I did not pay attention to the words about balsa sheeting and threated it like GWS. You definitely should put some pictures of builing process on site. It is very inspirational. I like you model very much (although it seems bit bigger that I'd prefer. Do you consider release of reduced scale variant?
Thank you,
Kostya

RE: A-10's
 

Hello Salat,

Thank you very much for your suggestions. I will put a short version of the build process on the website immediately. The full version manual is provided with the kit.

My experience is that models below 60" span are hard to fly especially if there is any wind. That's why I designed this for above 60". But there is no reason why we cannot scale the model down to a smaller size. What size would you prefer?

RE: A-10's
 

Hello!
I'd prefer it with span of 40-48. What will be you estimation of weight with this span?
Thank you,
Kostya

RE: A-10's
 

Our current A10 is 62" Span and weighs about 96 ozs flying weight with fixed U/C. The frame is about 32 oz and the hardware and batteries are the remaining 64 oz. The wing area is 550 sq ins. which means a wing loading of 25 oz/sq ft. This is ideal for a model which can fly fast or slow, take off with short run on grass, and land slow.

Now lets see what happens when it is scaled down to 40" which is a factor of about 30%. The frame will defintely go down by 30% to 22.4 oz. The problem is the hardware. Yes you can use smaller fans, smaller motors, smaller batteries, etc. but no matter what you do, you cannot save 30%, maybe 10% if you are lucky. So that would be 57.6 oz.

Add these two, and we get a flying weight of 80 oz, which is a 17% savings for a plane which is 30% smaller in wing area i.e. 385 sq in. That means a wing loading of almost 30 oz/sq ft.

At 30 oz/sq ft you have to run very fast to take off, fly the model really fast to stay up, and land fast to prevent stall. Flying fast means shorter flight times, which means more battery, which means more weight, which means higher wing loading, which means you have to fly it even faster......and on and on. We are in a vicious cycle by now.

I hope you see why smaller planes are harder to fly, especially if the hardware weighs what it weighs.

RE: A-10's
 

I guess two 64mm EDFs + 2 batteries should not weigh more than 20oz. where you got so bad estimation on power system?
Thank you,
Kostya

RE: A-10's
 

I have some questions, then I can do a more accurate calculation for you.

What is the number of cells, the mah rating, and the C rating, of the batteries?
What is the current draw of each fan/motor?
How much flight time do you want?
What is the thrust per fan that is possible using the above?

RE: A-10's
 

Just bought a JHH f86 from him, be here soon.
Larry the A10's looks sweet,What are they going for$$$
I may have to get one after the F86 build

RE: A-10's
 

If you're going for realism and any semblance of accuracy, there has never been an A-10 painted with that "camo" color scheme or on plane lettering.

Keith B
Ret. Capt., Air National Guard.