5" Toothpick Performance | Did they improve? 

Watching this really helped me understand better the relationship between voltage, current, motor sizes, and KV! Very cool to see the back to back flights with different batteries.

Very interesting build, Dave! Keep them coming :)

I built one of the 5” gate hunters when you came out with the STL. I enjoy flying it, rips hard and can fly easy for 17+ minutes if I use a 1100 4s

Love your frame designs Dave !

Nice video and interesting tests with the batteries 👍

Absolutely powerful motors on the quad and the 4s battery gives it a lot of pep as well. Awesome stick control!🖐️😎👍🆙

Very good comparison, thanks

The gnb 1100 mah 120C 3s pack is almost exactly the same weight as that 4s 850. Pair that with 2800-3000 kv and Gemfan 5125 props for a surprisingly good setup. I've been running 2203 3450 kv motors with a 4s 850 and 4" Gemfan 4023 triblades with great results at an auw of 257g.

Love this build... 5" for EU city rippin 😁... SO cool ! Also very interesting Batt-test, I'm gonna try this myself on my new mid-range setup.

Fantastic, comprehensive video 👊🏼 Would love to know your thoughts on the hglrc 1800kv in comparison to the brother hobby or others you.have tried

wow the acceleration is huggggge man!, should throw the brother hobby motors on if you want it even lighter.

Just curious what you think about the samsung 30q and why you chose the Sony vtc6 for the mini long range? It's obvious your extremely intelligent man.

Nice test 💪😁👍

I think a motor like the T-Motor F2203.5 that Scott Tomlinson tested in his newest video would be a good option.

As for sub 250g builds on Betafpv 4&5 inch frames I have built a lot of different configurations on that frame. I can easily build a sub 250g build with analog configuration. But it's been even a bigger challenge with a Caddx Vista involved. I have been experimenting for well over a year before these was even popular. The Betafpv frame is decent if you dont mess with the screws alot.. they strip really easy. Definitely got to use Lock tight on the screws and leave it alone.Or the screws come loose and tune is impossible..And even then it's still hard to tune noise out without some rpm filtering involved. I found that the BH Hyperbola V2 frame is much stiffer Frame like the RacerX frames ..and much easier to tune without rpm filtering involved. I have a Beast I flight F7 Aio FC Caddx Vista ,crossfire, Betafpv canopy & motors 2004 /3000KV build running 850mah 4s RDQ pack and it is sub 250g. Throttle curve helps a little but still floaty.I have been testing for a very long time .And if you are not tunning Betaflight savvy. Run Emuflight! Keep this content coming! Love it😀

Thanks! Would love to see if you could get one under 250g with the DJI system - that would be my holy grail with these 5 inch toothpicks. I think 6s might have made sense before these crazy rated toothpick boards, but not a concern with 35-40A boards. And it seems to have benefits to stay at the lower cell counts. In regards to motors, you considered ummagawd Aerolites?

Inspiring experiments. Thanks for sharing. Do you think it's possible to build a LR fpv quad using this 5" toothpick frame? I really like this shape. It looks very elegant.

have you tried the fpvcycle 2203/2204 motors?

How´d you compare the iflight props with the gf 5125?

Hey Dave, ich hätte da mal ne Frage an den Experten ;D. Mein Explorer ist jetzt auch angekommen und ich wollte mal wissen ob ich auf 3 oder 4s mehr Flugzeit bekomme. Und du empfiehlst doch die Sony VTC6 soweit ich mich recht erinnere oder?

Still A GREAT looking quad, even with all those Frankenstein parts!!

I wonder how it would respond to slightly smaller props at ˜ same low pitch Perhaps just under 5 inch and how this would reduce floatiness ?

I heard that about those motors. one prop choice. Mentioned in the survey on RDQ,s site. Brothers would be a better choice. Also playing with the ESC software and reduced mass in props and motor bells not to mention idle speed.

rc in power 2105 has 5mm nut so no problem with props or ripping the bell off the stem

lowering the dynamic idle to about 17 -19 will give better throttle res and get rid of the float. but watch out for de-syncs if you go too low

What’s your PID profile ? Have you change some think? Or is it stock PID profile? Thank’s Tom from France

If you built it with the VY 2004's, you could've saved 20 grams and gone under the limit. 20 grams for those 2005's is way too heavy imo. Awesome stuff though! I'm building my first ultralite 5in on 1805's, which are small, but I'm hoping it's enough since the quad will be so light.

When wilk the 1s 3inch video go out?

Hey Dave! Hab deinen Kanal grad über das Spinfast Interview gefunden. Bist n nicer dude! Weiter so :) Sub is raus ✌

Have you tried 2104 kv1800

By my estimates, I can only use the Brotherhobby 2004 instead of the iFlight 2005 for a Digital build to stay below 250g (JUST!). Any idea of the performance difference between those 2? The Brotherhobby does have a rather convenient 2100KV version.

4s or even 3s 5” ultralight sounds awesome

If you raise the camera angle it won't be so floaty. With this power to weight ratio you need more tilt, easier to control altitude.

i think bob roogi settled on 4s 2800kv 2204, which obviously is above 250g mark

I think u can find filler connectors for Gemfans to use on 1.5mm shaft

Interesting, how do you like that F745 goku? That might make it into my next build.

Thought my Rekon 4 FR was floaty lol... Was thinking about copying your toothpick 5" and just slap on 2000kv motors and 4s lipo's with xt60 (tattu 1050) but you just did that in the vid lol. It's build season again so maaaaaaaaybe copy the build in this video, but on 4s.

I think the floatyness does not only come from it being super light or not filtered enough, it could be due to the nature of low pitch props. They tend to be more agressive on low throttle cause they have that lift ability, but on the other hand they sacrifice on overall throttle resolution + in the corners they tend to lack in bite. I guess until someone comes up with a clever low weight, higher pitch prop (and I mean like 48 to 51), those ultralight 5" toothpicks will not fly as confident as high pitched, regular 5inchers on lets say 2306 or 2207 motors. Nevertheless it's an interesting problem to watch being fought against. I have personally jumped over to 3" 3S toothpicks cause they make more sense in just every aspect and don't cause headaches :p I do experience the same drifting, it's obvoiusly less occurent because of less overall weight of the quad, but it pushed me to jump from two blade to three bladed props on the 3 incher. That gave it a significant increase in bite but it's not completely solving the issue - it increased the disc/lift of the quad and therefore I can stop/change direction quicker but I need to turn more to apply thrust in the opposite direction I was flying to, to give it an opposite thrust pop. This however did not give the latteral airbrake effect which give high pitched props. I am now waiting for someone to make higher pitched 3" props than the usual 18 or 20 gemfans. The good thing about 3 inchers is that you have much bigger headroom in weight to accomodate for the higher pitch with a bigger battery, cause I have only 88g used from 250g to spare. The higher weight due to bigger battery shouldn't have a vast impact in handling/performance cause 3 inchers have great disc to quad size/weight ratio. I see a bright future for those 3 inchers in our hobby. I was really shocked by how awesome, cheap, resistant and unobtrusive those tiny little rockets are! :D

Can totally motor output limit a 1900KV to like 1500kv on 6s and you'll have the perfect benefit of high voltage :)

Very cool :) Been reading up on the new EU regulations and being able to stay

hmm, there are some 2100kv 2004s sounds like they would be a solid pick.

newbeedrone has a 2004 2450kv and umagwad has a2004 2400kv, I have the umagwad motors but there mounting pattern is weird only 2 bolt and the wire exit the motor in a way that that they do not follow the arm

Do you preheat your batterys? Mine don‘t like these temperatures🤪

Maybe those 5inch T mount props in the last FPV crate were made for something like this

Thought iflight 2005 took only their props.. 6mmx1.5mmx6mm.. ok u said it.. I wonder if it is testing for 7" t-mount

Toothpick’s rule! Any size

I am just getting into FPV but I was under the impression you were supposed to land at 3.6V per cell but I see in most of your videos you land much lower. Am I missing simething?

Haha that’s sweet, I’ve been waiting for someone else to do a ultralight 5 since I have been flying mine for a while. I have found mine to be a challenge to tune for sure but it reminds me of my 2.5 little premo I used fly a ton on 2s but this powerpick 5” 2203 3450kv on 3s is absolutely nuts, really floaty and doesn’t smash the battery but does pull enough amps to need a 40a at least for the hose hard moves. 3s 130c 1100mah is 👍👍👍 And getting 7 1/2 min flights hard flying. We definitely need more 2203 motors!! A rcinpower 2203 2900kv would be the absolute best!!!!!!!!!!!! When you did the 4s on that it looked exactly like my primo 2.5

Perhaps 5s with 1900kv :)

das ist nicht zufällig in der Nähe von Feldkirchen oder??

Do you have gps that it's showing alt?

Wenn du T-Motor 2004 nimmst, dann kannst beide Proparten montieren, der hat T-Mount und das andere Maß. Der BH 2004 und der T-motor sind im Test recht gut, der Xing liegt etwas dahinter, sieht dafür sehr hübsch aus. ;-) T-Motor hat im interessanten Bereich den besseren Wirkungsgrad, BH top end gut. Den ganz neuen hab ich noch nicht im Test gesehen. Vll. macht Gal noch einen. Werde evtl. meinen FW Explor V2 mit 2004 upgraden, ich will unbedingt auf 40min kommen. die 1404 NIN sind ~ hmmmm, nur leicht. Die g/W Angaben von flywoo sind grober Unfug.

Lithium ion batteries fine down to 3v easy often down to 2.5v

Set motor_output_limit = 83 Save Fixed for 6s.

the america drone

They need to make more 6s lihv to be under 250g..

Now we just need a build, that isn't able to fly faster than 19m/s ;)

the 5” toothpick is being replaced by just “5 inch sub 250g quads”

Too agressive on 6s 550mAh Too tame on 4s 850mAh -> Should be perfect on 5s 650mAh Sadly those are not very common. Mylipo sells some in Germany. 5s 750mAh might be even better for these agressive motors, considering the AUW is above 250g anyways.

In Deutschland macht es leider keinen Sinn mit nem FPV Quad unter 250g zu gehen weil man so oder so in der A3 Klasse landet sobald der quad schneller als 64,4 km/h fliegt... :/

Dann is da halt die Sache mit der Eu Drohnenverordnung. Ein sub250 5 Zöller würde gar keinen Sinn machen, denn langsamer als 68,5 km/h wird dieser nicht sein.

Why you need 5"? Why you need "under 250" if you try to fly "over 250"?

BRO , if that aint anything crazy flying... i wanna see wat you call crazy flying...

That sucks for real......

xing are battery killer..

13:43 I love that. Do you love me? 😍💋 💝💖❤️

I need boyfriend 💋💋💋💋💋💞💞💞💞

I dig what you do, and thanks for your efforts to date, however, let's get real about your position on "new random standards." If what you claimed, that new random standards are a "big no no," with you, then you wouldn't have made your build with those motors, and featured them throughout this video. While you say you are against such proprietary BS, you literally just did a 30 minute commecial for motors that are proprietary for the sake of extracting more money from the target audience of pilots. So you are making a significant, untrue claim to your viewers, most of whom you know take what you *say* as gospel. That's a violation on your part, of the trust element that is essential for your channel, and the directly related efforts, to succeed. Now for the part that pains me, as an avid viewer of your content, the most. You are extremely bright, so much so, that I have much trouble believing this is any kind of honest mistake, so for me, you've severely damaged your credibility from here forward. And any time you've been given the benefit of the doubt on these matters (what your motives are,) in the past, they now fall back squarely under suspicion. Please, point out my grave error here, or flaw in my logic, because Id prefer to admit my error, and continue on as I/we were. Ive looked to you as a source of independant/nonaffiliated, non sponsored information, with goals that match those of the average pilot, a rare resource, and losing that leaves very little else in the category (at least for me.) Sadly, I have little hope of an adquate explanation here. But by all means, someone tell me how Dave_C's actions here, do not undermine, and contradict his verbal claims about his position on the matter of new, customer-hostile, unecessary, "random," hardware standards cropping up. In summary, if you dont support something, that means you dont feature that something, and give that something 10+ uninterrupted minutes of screen time, in all its shiney new glory, in your video. It's no fun having to point this out, but I think inviting discussion is important to the value of any final conclusion that may be drawn here. Thanks for taking the time to read this, and for any consideration you might give to my concerns.