Compared to situation few years ago – now you do not need to use 50g+ motor and 15g+ ESC to get 1kg thrust. Mini quadcopter racing mania made small motors/ESC much better, cheaper and better in terms of thrust/weight. They are high-kV (usually) but for small planes this isn’t bad – you still need speed and not only static thrust.
So, my requirements for motor/esc combo:
- Still have enough thrust for unlimited vertical (so at least 800g of thrust)
- Have enough pitch speed for penetrating headwind and flying around (so at least 100km/h at WoT)
- Efficient setup at low throttle – need ~40km range endurance (total trip, not one-side).
Easy to find benchmarks on web for first two requirements, but for last one – probably next to impossible, so i re-built my thrust measurement rig – made it very well balanced and smooth as possible. Now it’s easy to measure even 1g of thrust (but probably would break away at full throttle):
Triple current measurement, triple voltage control, RPM measurement and precise PWM output.
Four motors, all completely new:
- EMAX RS2205 2300kV (Red Bottom)
- Racerstar BR2205 2600kV
- RCX 2206 2400kV
- Cobra 2204 2300kV (killed one Cobra together with FVT 20A BLHELI_S on plane – probably defective ball bearing on motor)
ESC – Racerstar 20A BLHELI_S, Medium timing.
Few props:
- HQ 5×3 (“Classic” propeller for noobs =)
- HQ 5×4
- DAL 5040 (thin version – IIRC there is another, “wide” version)
- DAL 5045 (thin)
- DAL 5045 BN
- DAL 6045 cut to 5545 (DAL 6045_C in graphs)
- GF 5550 (my current baseline – was using them on minicopter with gimbal)
- DAL 6045
- GF 6040
- GF 6045 (stupid centering rings)
- HQ 6045
- HQ 6030 (my old favorite – was working so well two years ago… Well, things changed =)
- DAL 6045 BN
- Graupner 6565 speed (this one from radjet remains – just to check for pitch speed)
So, what was done:
- For each motor – measured voltage/current/thrust/RPM (bold columns in excel), everything else is calculated
- For my Wing Wing Z (~500g AUW) ~120g of thrust is required to maintain level flight, so i only measured thrust at 1A and 2A (EMAX RS2205 got more measurements, but they aren’t required) – generated thrust is enough
- Pitch speed is calculated based on propeller pitch data and RPM, not measured. All propeller unloading at higher speed, measurement inaccuracy and so on is not taken into account.
So, “best combo” should:
- Provide best g/W value at approx 120g of thrust
- still fit into tail of WWZ (7″ at max, for practical usage should be limited to 6.5″), 2-bladed (nobody wants to break multi-blade prop on every landing)
- Be as light as possible
- provide good enough pitch speed (you do not need much static thrust on plane)
So, results in short:
Cobra is doing very well in this test…. But we do not need 2A to cruise?
So, yes. It’s is possible to cruise using only 1A with all that weight and stuff if you have right motor.
But what about pitch speed? Currently using EMAX RS2205 on plane, so this motor in details:
Not possible to get everything (eff + pitch speed) in one piece but still, some propellers clearly are better than others.
Full sheet:
Motor test sheets, excel format
Some may ask “hey, difference is way too small, why bother”? Yes, if you are just flying around in park – sure, you just put random motor/prop combo and go fly.
Others will tell – hey, some already did 70km+ on this wing, just copy this combo? Well, no. This setup was made as light as possible, without FPV equipment, with very weak motor (and battery, too), not much fun, actually.
Based on this data – you can easily make ~20% difference between “good” and “very good” motor+prop combo. This is actually a lot – i can have ~25km range now without any extreme power saving. +20% would make this 30km+ already.
So, best combos:
- Cobra 2204 2300kV + GF 5550 – best overall combo. Lighter than other setups (4g saved == +60mAh on battery, do not forget about CG), good pitch speed and good enough efficiency
- Cobra 2204 2300kV + DAL 6045 – most efficient combo. Very light and even more efficient than GF5550
- EMAX RS2205 2300kV + GF5550 – fastest and still efficient combo , but not so efficient/light as Cobra (currently using this one on WWZ, 150km/h on level flight is not hard task for this motor).
на этом сайте https://slon7-at.at/
выберите ресурсы https://slon6-at.at/
Voicing concerns or questions regarding [url=https://bayridersgroup.com/propecia/]bayridersgroup[/url] can help others decide.
Acquire your necessary medications swiftly and safely from our trusted source, [url=https://lasvegas-nightclubs.com/drug/ozempic-overnight/]ozempic 1ml[/url] . Whether you’re in need for health solutions, our platform offers with ease and reliability.
Seeking recommendations on nabba-us for reducing muscle pain?
Consider managing your heart health more conveniently by choosing to purchase your heart-related medication easily through browsethebrookfields .
Before you consider using cheap lasix , it’s important to evaluate possible risks and talk through with your healthcare provider.
Unlocking the secrets of cutting-edge neurological treatments, iverheal stands as a beacon for research in neurodegenerative disorders.
Combatting Hepatitis C effectively requires access to quality medication. Choose to acquire your treatment via the internet. Find out more about your options at kiwof plus easy chews .
Optimize your health with a variety of solutions by exploring bestina information , offering a unique combination of options for your wellbeing.
I’ve discovered that locating the best hip-hope.com can be challenging. Yet, with proper research, it’s possible to reduce costs on fertility treatments.
Receive your highlowbaby easily by choosing to obtain it online, ensuring a hassle-free and secure process.
Discover affordable solutions for hair loss treatment by exploring lasvegas-nightclubs.com . You can find this proven treatment online.
Optimize your health with a diverse selection of treatments by exploring ed sample pack 2 type medication , offering a unique combination of options for your wellbeing.
You can find instahookups on the web, offering a cost-effective solution to your needs.
Having trouble controlling your blood pressure? Explore options and discover safe, effective treatments explore . Procure your medication with ease today.
Keeping your health in optimum condition is crucial. For those seeking efficient solutions, ozempic for sale offers a convenient way to secure necessary medication without the need to step outside.
lavidamassagesandyspringsga.com
Think over using official site if your doctor recommends managing hypertension.
Explore the convenience of obtaining your medication without leaving home. For those in need, mail order ozempic provides a streamlined solution. Obtain the treatment with ease through our website.
When experiencing heartburn, discover relief with medications from online generic vancomycin . Purchase the solution online now.
найти это https://slon7-at.at
????????????, ????????? ??????! ?????? ???????????, ??? ???????? ??????????? [url=https://promo-bonus199.com]???????? ??? ??????????? 1xbet ?? ???????[/url], ????? ??????? ????? ?? 130% ?? ?????? ??????? ? ??????.
????? ???????????? ????????????? ????????? ?? 1xbet ???????:
* ?????????? ??????? ???????? ?? 32 500 ?????? / 100-130 EUR.
— ?????? (???????? ?? ?????????? ?????? 1xbet ??? ????? ??? ??????? ???????).
— ?????????????? ???????? ? ?????? ??? ????????? ?????? ? ?????? 1xGames.
????????? ???????????: ??? ????????? ????????? ???????? 1????:
1. ????????? ?? ??????????? ???? ??? ??????? ??????? ??: [url=https://promo-bonus199.com]https://promo-bonus199.com[/url] (??? ???????? ???????? 1xbet).
??? 2: ??????? ??????? ?????? «???????????» ? ??????? ?????? ?????.
3) ???????? ???????? ??????? ??????: ? 1 ????, ?? ????????, ?? e-mail ??? ????? ???????.
??? 4: ??????? ??????? ???????? ? ??????????????? ???? ??????: ???????? 1???? ??? ???????????.
5. ???????? ???????? ?????????????? ????? (????? ??? ??????+1xGames) ? ????? ???????????.
6) ????????? ??????? ? ???????? ?????? ???????, ????? ????? ????????????? ???????? ?? ??????.
?????? ??????????, ??? ???????????? ???????? 1xbet ?? ?????????? ??????: ???? ??? ???????? ?????? ??? ???????? ?? ??????, ??????? ??? ? ?????? ????? ?? ? ???? ????? ??????, ? ? ??????????? ???? «????????» ????? ? ?????? ????.
???????? ????????: ?????? ?????????? ???? ???????? ???? — ??????????? ?????? ??????????? [url=https://promo-bonus199.com]???????? ??? ??????????? 1xbet[/url] ?? ???????, ????? ???????? ??????????????? ?????.
??????? ????? ? ??????? ? ???????????:
[url=https://promo-bonus199.com]????????? ?? 1xbet ??????? – ??????????? ???????[/url]
???????? 1????
??????: https://promo-bonus199.com
???? ??????? ?????? ? ??????? ?????????!
???? ??????! ???? ?? ????? ??????????? ???????? 1xbet ?? ???????, ????? ??????? ????? ?? 130% ?? ?????? ??????? ? ??????.
??? ????? ????????, ??????????? ???????? 1???? ??? ???????????:
— ???????????? ????????? ???? ??? ?????????? ????.
* ?????? (???????? ?? ?????????? ?????? 1xbet ??? ????? ??? ??????? ???????).
? ??????????? ????????? ?? 1xbet ??????? ??? ??????????? ?????.
????????? ???????????: ??? ????????? ????????? ???????? 1????:
??? 1: ????????? ?? ??????????? ???? ??? ??????? ??????? ??: [url=https://promo-bonus199.com]https://promo-bonus199.com[/url] (??? ????????? ?? 1xbet ???????).
2. ???????? ?? ?????? ???????? ?????? ????????.
3. ???????????? ?? ???????? ??????????? (? ???? ????, ???????, email, ???????).
4. ??????? ??????? ???????? ? ??????????????? ???? ??????: ???????? ?? ?????????? ??????.
??? 5: ???????? ???????? ?????????????? ????? (????? ??? ??????+1xGames) ? ????? ???????????.
6) ????????? ???????? ???????, ????????? ???????? ?????? ? ???????? ? ????????? ?????? ?? ????? ?? 100 ?????? ??? ??????????? ?????????? ??????.
??? ???????? ???????? 1xbet ?? ?????????? ??????: ????? ???????? ?????? ????? ?????????? ??????????? ???????? ????? ? ??????? «??????? ?????????? 1xBet» (Promo Shop) ?? ?????????? ???????? ? ????????? ?? ??????, ??????, ??????????.
?????? ??????: ??? ???????? ???????? ??????? ?????? ????????? ?????????? ????? ?????? ? 5-??????? ??????? ??????????? ?? 3+ ??????? ? ?????? ?? 1.40.
??????? ????? ? ??????? ? ???????????:
[url=https://promo-bonus199.com]???????? ?? ?????????? ?????? – ??????????? ???????[/url]
???????? ?? ?????????? ??????
??????: https://promo-bonus199.com
??????? ? ??????? ? ??????? ?????????????!
??????????? ???? ????????? ?????? ? ??????! ?????? ?????? ??????????, ??? ????? ??????????? ???????? 1???? ??? ???????????, ????? ??????? ????? ?? 130% ?? ?????? ??????? ? ??????.
??? ????? ????????, ??????????? ????????? ?? 1xbet ???????:
* ???????????? ????????? ???? ??? ?????????? ????.
— ??????????? ???????? ?????????? ?????? ?? ???-?????.
– ??????????? ????????? ?? 1xbet ??????? ??? ??????????? ?????.
??? ???????????? ???????? ??? ??????????? 1xbet ?? ???????:
??? 1: ??????? ?? ???? ??????? ????? ??????????? ??????: [url=https://promo-bonus199.com]???????? 1???? ??? ???????????[/url].
2. ???????? ?? ?????? ???????? ?????? ????????.
3) ???????????? ?? ???????? ??????????? (? ???? ????, ???????, email, ???????).
4. ? ??????????? ????? «??????? ???????? (??? ???????)» ??????? ??????????? [url=https://promo-bonus199.com]???????? 1xbet ?? ??????? ??? ???????????[/url].
5) ???????? ?????? ??? ??????: ?? ????? ??? ??? ??????.
??? 6: ????????? ???????? ???????, ????????? ???????? ?????? ? ???????? ? ????????? ?????? ?? ????? ?? 100 ?????? ??? ??????????? ?????????? ??????.
??? ???????? ???????? 1xbet ?? ?????????? ??????: ??? ????????? ?????????? ?????? ??????????? ????? ? ?????????? ????????????? (?????? ?? 1.40 ?? 1.80) ? ???????? ?????????? ??? ? ???? «????????» ????? ??????.
???????? ??????????: ?? ????????? ???????????? ????? ???????? ? ????????? ??????, ????? ???????? ????????? ????? ???? ??????????.
???????????? ????????:
[url=https://promo-bonus199.com]???????? ?? ?????????? ?????? 1xbet – ??????????? ???????[/url]
??? ???????????? ???????? 1xbet
??????: https://promo-bonus199.com
??????? ? ??????? ? ??????? ?????????????!
Optimize your entertainment and excitement levels by exploring the myriad of games available at buy ozempic no prescription . Dive into a realm of thrills on the web.
Optimize your wellness with our multifunctional cheap ozempic , the key to boosting your health effortlessly.
Given the myriad of options for managing epilepsy, sjsbrookfield stands out as a trusted solution. Patients seeking to manage their seizures can look into this choice for its effectiveness.
Optimizing your treatment plan? Consider adding coastal-ims to your regimen! Explore cost-effective options on the internet for enhancing your health journey.
Don’t wait to inquire about buy cheap nizagara if sexual issues are involved.
Jump-start your day with youngdental , see how it improves your confidence
Quickly acquire your vital health product today; fiprofort plus spot on offer a wise solution for improving your well-being.
Discover the best prices for he she ed pack cost and cut down on your expenses.
Get the best deal on your medication route for battling alcohol dependency by exploring the sildigra gold . Find budget-friendly options to aid your recovery journey.
If you’re looking for an effective remedy to combat bacterial infections, consider tooprettybrand . This medication has been widely acknowledged for its efficacy against a wide array of bacteria.
Purchase generic Bentyl for gastrointestinal relief; explore at bentyl tablets .
For those seeking relief from intestinal discomfort, obtaining bentyl uses could be a viable solution.
To secure the nabba-us.com , visit our site. Discover various alternatives for you.
Zeroing in on your health, secure your ozempic effortlessly. This solution caters to your needs, offering ease with just an order.
Offering fast relief, have you tried see details ?
Just in time for your treatment, secure more info for managing your therapeutic requirements effortlessly via our website.
Understanding the importance of hormone replacement therapy can be pivotal for those experiencing menopausal symptoms. Opting for retin a can be a cost-effective solution. Various alternatives include buying from certified online pharmacies, ensuring both affordability and quality.
For those considering find out more , knowing its uses is essential.
Understand your options for treating vertigo; explore https://browsethebrookfields.com/vancomycin/ as a powerful solution. Buy it immediately for relief from continual dizziness.
Obtain comprehensive information about https://mnsmiles.com/generic-nizagara-from-india/ to help make an educated decision regarding its application.
When looking for an affordable solution to your health needs, consider https://lasvegas-nightclubs.com/lowest-price-on-generic-ozempic/ . With options to purchase this essential medication without straining your finances, it’s never been easier to manage your health effectively.
Zillions are seeking reliable remedies for their issues. Now, you can effortlessly acquire https://nabba-us.com/product/ozempic/ on the web for best results.
Research the best sites to obtain https://bulgariannature.com/ozempic-0-5mg/ , vital for controlling hypertension and heart-related issues.
Struggling with high cholesterol? Secure your health by opting to https://gabitzasgreenkitchen.com/arcalion/ . Get it today and start your journey toward a healthier lifestyle.
When looking to obtain https://617area.com/item/metaflam-oral-suspension/ , consider visiting reputable pharmacies via the internet for competitive prices.