Armattan Quads FAQ
1- Can I buy props from you?
No. I only include one set. I buy my props from here: http://www.himodel.com/sort.php?sub1=E2
And there is a poster selling them at a good price in the classifieds. His prices are good and I heard he's a nice guy.
2- What size are the props?
Most of the quads I make use 8045 props. Quads 325mm or less use 7045 props. Quads 400-450mm use 9045 props. The small M220 uses 6' props.
3- Can I buy motors/Simonk ESCs from you?
No. I do not sell components. I sell frames and RXR models. Even if you buy a RXR model from me and you want a spare motor or ESC, I will not sell. You can order that yourself through the various vendors who will be happy to take your orders. I can sell you spare frame parts, though.
4- Where can I buy these motors/ESCs?
I buy RCX motors and ESCs from www.myrcmart.com
and I also buy Turnigy motors and Hobby King ESCs from Hobby King. RCTimer motors with the same specs can me mismatched as are the Turnigy motors. You could have one of each brand of motors on the same quad and it will fly the same. I would not mismatch ESCs, though. You need 4 of the same.
5- What's your turn around time?
It usually varies between 1 and 3 weeks depending on the model you order, parts I have in stock and how many orders I have. I can give you a more specific time estimate when you order.
6- How long does shipping take?
Between 7 and 14 days. Most orders take 10 days.
7- Do you ship to Europe?
Yes. I ship worldwide. Shipping cost is included in the price. There is a 15$ shipping charge ONLY for quads larger than 400mm. If 400mm quads are sold as DIY kits, there is no additional shipping cost.
8- What batteries do I need?
You need 3s batteries, around 2200mAh with NO LESS than 40c discharge rate. For quads running 2826 motors, I recommend using closer to 3000mAh The battery connectors I use on Armattan quads are T-Deans connectors. NOTE: Most motors I ship are not compatible for use with 4s batteries. It might work but it's not recommended.
9- Can this quad lift a GoPro?
Yes. Easily. Most people mount the GoPro on top of the top plate. And I will soon be selling a GoPro mount that will fit all Armattan models.
10- Why do you use motors with such high KV?
It's for better performance and more thrust. A 2822 motors with 1100KV will produce about 500 grams of thrust. The same motor with 2600KV produces 850 grams of thrust. My quads are built for acrobatics. I believe that in the past, high KV motors were avoided because they would often make a quad unstable and cause oscillation. I'm using SimonK ESCs and the KK2 board on my builds and this combination can handle high KV rock solid even on hard acrobatic recoveries.
11- What are the leads I need to connect my receiver to the kk2?
It depends on what kind of receiver you are using, but generlly, you need 3 wire jumper cables with female connectors on both ends. I use 1x 3 wire connectors and 4x single pin jumper cables on mine. Here's a link to where they sell the 3 pins jumper cables and single pins jumper cables as well. http://blueskyrc.com/index.php?main_...6a74386668d281
12- Will the KK2 board be flashed with the latest firmware?
As of now, I flash V1.4 on the KK2. V1.5 has been released but it is for camera stabilization gimbals management and not needed on sports quad. So yes, I flash the latest firmware that is applicable to my models.
13- Does auto level on the KK2 help beginners?
Yes and no. If you manage to tune it right it may help a bit but it doesn't work all that well and it makes the controls sluggish. So you may need to raise stick scaling a bit to get the same response on the sticks. I flash firmware V1.4 on the KK2s and this firmware improves the auto level function quite a bit but it's still not a "real" auto level like you will find on Multiwii, Open Pilot or Naza flight controllers. I do not program auto level on my models because I think it siply doesn't work well enough to bother. The KK2 is a great acrobatic platform, but for auto level it's greatly deficient, in my opinion.
14- Can I program the KK2 to make flying easier for a beginner?
Yes, you can. Essentially, you need to reduce the stick scaling numbers on Pitch and Roll until the flight characteristics are tamer. Other settings in the KK2 board have no bearings on how easy the model is to fly.
15- Can you tell me what PI settings you program in the KK2?
These are the PI settings I fly myself and ship on all quads bigger than 335mm.
Pitch and Roll:
*For smaller quads like the CNC 258 or the M230
Pitch and Roll: