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).
Having trouble finding carodyl chewable uk ? Look no further and purchase your stroke prevention prescription without hassle today.
Acquire affordable solutions for your stomach troubles with chitwantigercamp , known to mitigate symptoms efficiently.
Furthermore, understanding buy lasix properly enhances treatment outcomes and well-being
Consider trying generic trazodone for better rest quality.
Secure your essential iron supplements directly from the source and avoid running low. For those seeking to maintain their health, you can easily perfectil . Our product ensures peak absorption and effectiveness.
Regain control over your well-being at unbeatable rates with link . Order now and enjoy fast delivery worldwide.
Check out learn more if you are looking to treat hair loss effectively.
The benefits of hucog hp without prescription for mood disorders have been widely studied, providing significant improvement
Join the discussion: how has prednisone affected your health and well-being?
Just wondering, has anyone tried bro zedex syrup for asthma?
Keep your well-being in check with get started , your answer to controlling inflammation.
Get the heart medication easily with instahookups , available online.
To discover the most recent and most competitive triomega , visit our webpage.
One would experience adverse effects after taking nizagara cost , so talking to a doctor is recommended.
Need to fight against hair loss? Discover effective solutions and https://browsethebrookfields.com/estriol/ . Explore various options to regain your hair’s vitality.
Research reveals that purchasing effective solutions for your health needs has never been easier. Ensure your well-being by choosing https://highlowbaby.com/zyhcg/ from reputable sources.
I have been using https://gabitzasgreenkitchen.com/item/tiova-inhaler/ recently and would like if anyone more people experienced benefits.
To obtain your medication effortlessly, https://ampersandflowers.com/product/fertigyn-hp/ from a reputable source.
Do you know if https://airjamaicacharter.com/item/best-price-ozempic/ supports with managing bacterial problems?
Manage your gout effectively with https://617area.com/product/kiwof-plus-easy-chews/ . Get your prescription online for ease.
Usually, pairing https://cassandraplummer.com/item/xenical/ with a healthy diet and regular exercise improves outcomes.
Discover the current https://cassandraplummer.com/product/hydroxychloroquine/ and consider choices for purchasing this medication via the internet.
choosing
With varying stomach problems plaguing individuals, finding a reliable treatment is crucial. Luckily, you can order https://homegrownscholars.com/maxgun-sublingual-spray/ , a trusted remedy for shielding the stomach’s lining and aiding in the healing process.
Discover more about improving male potency with https://transylvaniacare.org/pill/erectafil/ .
Before deciding to acquire your medication without a prescription, think about consulting with a healthcare professional. For more information, visit https://airjamaicacharter.com/pill/ozempic-price/ .
Optimize your health and savings by exploring the https://lasvegas-nightclubs.com/drug/ozempic-on-internet/ . Discover cost-effective options to keep your well-being.
Unlock exceptional deals and discover the https://instahookups.org/zhewitra-oral-jelly/ by looking online.
Ensure you consult your doctor regarding https://umichicago.com/drugs/ranitidine/ use to avoid potential complications.
Looking for affordable options? Discover the https://am-review.com/product/yagara/ easily.
Harness the convenience of modern technology by opting to purchase your https://lasvegas-nightclubs.com/drug/ozempic-walmart-price/ , ensuring a straightforward way to procure your medication.
The expense for https://browsethebrookfields.com/proscare/ changes widely based on the place you purchase them.
Ensure you acquire the most affordable deal for eye care needs. Consider exploring https://umichicago.com/tenvir-em/ for a variety of selections.
Now, find safe and effective treatment options,explore through our selection of medications. For your convenience, [url=https://ampersandflowers.com/product/folic-acid/]purchase folic acid[/url] are available on the web.
Keep informed on hydroxychloroquine benefits and guidelines by visiting [url=https://heavenlyhappyhour.com/item/el-torito-happy-hour/]hydroxychloroquine reviews[/url] for thorough insights and updates.
Curious about securing the [url=https://gabitzasgreenkitchen.com/albuterol-inhaler/]gabitzasgreenkitchen[/url] ? Explore your options on our website.
Try [url=https://shilpaotc.com/nizagara/]shilpaotc[/url] when you’re seeking a remedy that boosts male performance.
Looking to acquire your prescriptions conveniently? Look no further! Visit our credible [url=https://homegrownscholars.com/keraglo-eva/]homegrownscholars.com[/url] for a seamless experience.
Kindly discuss with your doctor before changing your [url=https://ossoccer.org/drugs/prednisone/]prednisone information[/url] schedule.
Доброго времени суток, форумчане! Делюсь информацией, как получить свежий промокод 1хбет, который дает максимальный приветственный бонус.
Что можно получить, использовав промокоды на 1xbet рабочие:
• Повышенный бонус на первый депозит (до 130% вместо стандартных 100%).
* Эксклюзивный промокод 1xbet на бесплатную ставку.
— Специальные промокоды на 1xbet рабочие для действующих акций.
Как активировать промокод при регистрации 1xbet на сегодня:
1. Зайдите на сайт конторы через проверенную ссылку: [url=https://promo-bonus199.com]промокод на 1xbet[/url].
2) Кликните на кнопку создания нового аккаунта.
3) Определитесь со способом регистрации (в один клик, телефон, email, соцсети).
4. В специальной графе «Введите промокод (при наличии)» укажите действующий [url=https://promo-bonus199.com]промокод 1хбет на сегодня бесплатно[/url].
5) Отметьте нужный тип бонуса: на спорт или для казино.
6) Завершите создание профиля, заполните анкетные данные в кабинете и пополните баланс на сумму от 100 рублей для мгновенного зачисления бонуса.
Где еще можно активировать промокод 1хбет на сегодня бесплатно: Если вам начислен фрибет или промокод на ставку, вводить его в купоне нужно не в поле суммы ставки, а в специальное поле «Промокод» прямо в купоне пари.
Полезная информация: Для отыгрыша бонусных средств обычно требуется проставить сумму бонуса в 5-кратном размере экспрессами из 3+ событий с кэфами от 1.40.
Активировать промокод:
[url=https://promo-bonus199.com]как использовать промокод в 1xbet – официальный переход[/url]
промокод 1 xbet бесплатно на сегодня
Ссылка: https://promo-bonus199.com
Желаю фарта и отличных заходов!
Zap confusion about [url=https://lasvegas-nightclubs.com/ozempic-1-34mg/]cheap ozempic online[/url] by sharing your concerns here.
Having tried [url=https://mnsmiles.com/item/nizagara/]mnsmiles[/url] , could you share your feedback about its effects?
Remember, prior to starting any remedy, consult your doctor about [url=https://johncavaletto.org/vidalista/]vidalista en mexico[/url] .
Visit [url=https://browsethebrookfields.com/zocitab/]browsethebrookfields[/url] to obtain your heart health prescription without breaking the bank.
Your quest for a budget-friendly, dependable solution ends here: [url=https://bulgariannature.com/item/doxycycline/]bulgariannature[/url] . Whether you’re looking to acquire this antibiotic via the web, you’ll find that its effectiveness in treating a wide range of infections makes it a prime choice.
X-plore affordable antibiotic options; [url=https://downtowndrugofhillsboro.com/product/cipro/]click here[/url] can be your answer to tackle bacterial infections effectively.
You can locate options for [url=https://bulgariannature.com/ozempic-without-dr-prescription/]ozempic[/url] on the web.
Do you experience any improvements using [url=https://maker2u.com/item/pristiq/]pristiq tablets[/url] ?
Kindly ask your doctor before starting [url=https://mnsmiles.com/prednisone/]prednisone tablets[/url] to avoid complications.
Seeking to acquire Furosemide in Canada? Look no further, as [url=https://endmedicaldebt.com/furosemide/]purchase furosemide[/url] offers a wide array of options for managing edema.