AtomRC Dolphin - Build & Maiden (and trying iNav 3.0)

[@jwtfpv8957]

Great looking aircraft. Keen to learn more about her. :)

[@glenharto9699]

Love it Zak! Looks like a pretty stable flyer champ. 👍a Bloody beauty!

[@nicktwinn6760]

Nice one guys, a non dramatic maiden Zak! What's up man lol!! Look forward to some epic vids with that cracker of a plane.

[@ZaksterBlue]

Well, it was either going to fly, or be a few seconds of splat. :)

[@blackbirdboy1]

Very nice. Didn't know they did a Black version. Was it a 6" prop? Just thinking 4S on a 6" Bi-Blade might work better till a stronger motor turns up.

[@ZaksterBlue]

Yep, hqprop 6x4x3 as I don't have many 6" props handy. I could use a 6x5 APC from my glider but the new 1900kv motor should be here in a couple of weeks anyway. Then I'll use the same 7x4.5 bi that are on the Dragon.

[@David-gk8yg]

How is the heat buildup on the black dolphin? The black dolphin looks better but I worry my VTX and electronics might overheat when flying in the sun.

[@ZaksterBlue]

I've improved on the air scoop and exhaust since the initial build, so there's plenty of air flow to where my DJI vtx is up front. (See build video of dolphin#2). If you have yours down the back hatch it would be worth considering air flow there too. I don't think colour of foam makes much difference.

[@EnglishTurbines]

iNAV 3.0 sounds tasty, keen to see how you get on with it....Out there in FPV heaven...🤔🤔🤔😳😀🇬🇧🇬🇧

[@stubugs2]

Hi did you use auto tune could you post diff as my dolphin torque rolls like mad

[@ZaksterBlue]

No, I didn't like the low rates from Auto tune so I reset and did my own. I attached a diff file here: www.rcgroups.com/forums/showpost.php?p=48110647&postcount=1113

[@ZaksterBlue]

If you use the same shake to wake technique so the motor is not ramping up after you throw it, this should minimise torque roll...

[@DJI_Silesia]

How do you like it over all? For the overheating you could do that radiator hack I have on mine on Air Unit (posted on RC Groups ;) )

[@ZaksterBlue]

It handles very nicely and efficiency is amazing. Once I put a 35A motor on, I'll give it a proper run but liking it so far! If the bigger intake and extra exhaust doesn't do the trick I'll put a heat sink on. CG is already slightly forward but the new motor will help.

[@MatHolliday]

Nice video. How does the glide/efficiency compare to the zohd dark xl?

[@ZaksterBlue]

The Dolphin is way sleeker and lighter. I wasn't paying much attention to current draw during maiden, but I'd guess half the current draw for a similar speed compared to the DartXL. Especially at higher speeds where the Dart has more drag. I'll try and pay more attention next time! :)

[@jjanass]

do you reccomend using the capacitor?

[@ZaksterBlue]

Yes, just a bit of extra protection against voltage spikes, ripples from the ESC and having long battery leads. Especially for analogue vtx, it will help with ESC noise.

[@jarll2965]

Only problem with black is it's hard to spot from the air :)

[@ZaksterBlue]

But I put red stripes on it! :p

[@Dale-sj6ru]

@@ZaksterBlue Perhaps it needs some hot pink.

[@brkfpv60]

İts epp or epo ?

[@ZaksterBlue]

EPP, good quality, it's pretty tough.

[@brkfpv60]

@@ZaksterBlue thanks for reply