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Qbang
23rd December 2014, 12:05 PM
First off I want to send a big thank you to David at FlyingCinema. I contacted him about the possibility of running props bigger then 12 inch on the Tank, he said hang with him and that something is in the works. Before getting the Tank I was about to pull trigger on the Ariel Mod kit for the Disco, but after hearing about all the issues people are having I'm glad I held off.

The Mk.2 XL consists of a new dirty section with slightly diffrent geometry and 282mm 16mmX2mm CF arms. The arms look bomb proof.

I got the parts in last night and was able to get a little building done. I will update pics as I go along.

A big thanks also goes out to Benny_H88 for his step by step, it helps a lot.

bllama
26th December 2014, 12:42 AM
Thanks to you and look forward to see this bird in the air!!. I got to say I love those booms, they are super tough. 2mm thick CF is just cool (a little heavy but it will help eliminate a lot of the issues we might have with regular 1mm thick wall tubes).

Qbang
26th December 2014, 10:11 PM
Quick update, I got the top and bottom plates mounted. The wire trick for mounting the bobbins was a life saver. I hope to get started on the wiring this weekend.

Qbang
31st December 2014, 02:41 AM
Just a quick shot, I should be able to Maiden it New Year's Day! My plan it to get it up in the air and run 5 batts, then install my FPV/LRS gear.

Qbang
6th January 2015, 12:46 AM
Slow progress, but I hope to get it in the air this weekend. This pic is with 14 inch props.

bllama
6th January 2015, 02:04 AM
coming along nice!

bllama
9th January 2015, 01:48 AM
I just tested the XL tank. (FINALLY) 640mm size with 15 x 5.5 carbon props balanced. pros 1750gr aug no fpv gear yet. and 2700mha 6S 35c. (i have an qx gimbal with no camera and no electronics mounted at the front). it hovers for 20min with 10% battery left.
What I want to do is release the XL plates with the longer tubes 1.5mm to 2mm wall not 100% sure what is best yet. (the XL plates will replace the dirty plates of the MK2. The layout of the motors is a different and it will allow you to spin very large props if you want with 16mm tubes).

Benny_H88
10th January 2015, 07:10 AM
WOW it's enormous!! Glad you've found my build log helpful, I'm waiting for some weather improvements to give mine a proper test.

I superglued the side plates on the dirty section the other day, what a difference it made to stiffness. I'd suggest you do the same before the maiden :)

Qbang
12th January 2015, 01:30 AM
Well it's all ready to fly, now if the weather would just cooperate. I busted out the scale, 1348g as it sits. I have a few different 6s batts to try, 2600mah @ 421g and a 6000mah @ 900g. With one 2600mah batt that will put me at 1770g AUW without FPV gear. About 150g for FPV gear. If the efficiency table holds true I should be able to hover at about 1.5-1.6a per motor. So 6-6.5 amp pull would give me about a 20min hover keeping to my 80% safe rule.

bllama
12th January 2015, 02:04 AM
awesome!!

bllama
12th January 2015, 02:05 AM
Well it's all ready to fly, now if the weather would just cooperate. I busted out the scale, 1348g as it sits. I have a few different 6s batts to try, 2600mah @ 421g and a 6000mah @ 900g. With one 2600mah batt that will put me at 1770g AUW without FPV gear. About 150g for FPV gear. If the efficiency table holds true I should be able to hover at about 1.5-1.6a per motor. So 6-6.5 amp pull would give me about a 20min hover keeping to my 80% safe rule.

Here's the other XL tank:

http://instagram.com/p/xrGgk8oo9S

Qbang
19th January 2015, 12:57 AM
The default idle speed on the on the Vector proved to be a little too much for the bare bones MK2XL on 14 inch props. As soon as I armed it, it shot up on its own! I hit my kill switch as fast as I could. The quad autorotated down from about 50 feet and landed without issue, it was a site to see.

Now to crank the idle speed way down and try again.

Qbang
24th January 2015, 04:09 PM
I pulled my vector logs. The only thing that looked odd was the "Multicoptor Stability Issue" errors and me hitting the kill switch. Any other vector guys out here, have you seen this error?

The crash ended up breaking a set of mounts on the frame side and bent up all 4 of the screws. I'm just happy my motors and propa came out of it 100%.

bllama
24th January 2015, 11:33 PM
Wow, I'm so glad nothing else broke. Sorry about what happened. You should have replacements for most of them?

hskb
3rd February 2015, 02:13 AM
Look very good Qbang, any update on your XL tank?
The local fpver crashes his mkii tank multiple times, and he only broke the little dot on the mold of the motor mounts :)