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- USA
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Sunnysky M4520 840KV Heli BLS MotorSunnysky M4520 840KV Heli BLS Motor Model: M4520 KV840 Y S rpm V: 840KV Stator Poles: 12N 10P Stator Diameter Thickness: 45,5mm 20mm Motor Wind: 3+4 Delta thick wire Motor Resistance: 5,9m Max Current: 95A Max Peak Current: 115A Max Continuous Power: 3200W Max Peak Power: 3600W Motor Diameter: 56. 3mm x 47mm Shaft Diameter: 6 x 36mm Mounting Hole and Screws: 4 x 30mm M4 Max Lipo Cell: 8S Motor Weight: 393g
- Sunnysky M4520 840KV Heli BLS Motor
Model:
M4520 KV840 Y-S
rpm/V:
840KV
Stator / Poles:
12N / 10P
Stator Diameter / Thickness:
Ø45,5mm / 20mm
Motor Wind:
3+4 Delta thick wire
Motor Resistance:
5,9mΩ
Max Current:
95A
Max Peak Current:
115A
Max Continuous Power:
3200W
Max Peak Power:
3600W
Motor Diameter:
Ø56.3mm x 47mm
Shaft Diameter:
Ø6 x 36mm
Mounting Hole and Screws:
4 x Ø30mm M4
Max Lipo Cell:
8S
Motor Weight:
393g
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.1 ★★★★★
Based on 1834 reviews
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Product Reviews
★★★★★ 5
All around helpful---worth the money!
Format: Paperback
This guide has been most helpful for all the folks I help prepare for the iTEP test! It gives insight into what each section of the test is looking for along with examples and great tips about actually TAKING the test. In the Writing and Speaking sections, it also gives sample scores and comments from the Master Grader which is very helpful too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 9, 2019
★★★★★ 5
Comprehensive, clear and coherent!
Format: Paperback
The iTEP Practice Guide combines a no-nonsense approach to the specific iTEP tests and at the same time offers exercises that task the student with what they need to know. Exercises not only serve the purpose of scoring well, but the overall approach is communicative competence. We use the text in our group and one-to-one classes with very positive--and lasting--results.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 23, 2019
★★★★★ 1
No recomiendo
Format: Paperback
Muy malo, no vine completo, además se demoró mucho más de lo que decía al momento de comprarlo. Solo aplazaban la fecha de entrega sin consultar cómo afectaba al cliente. Yo tuve que presentar el examen sin el libro, porque no llegó en la fecha que decía al comprarlo y después se cambió 3 veces la fecha, casi cumpliendo el mes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2025
★★★★★ 5
VERY EFFICIENT MATERIAL
Format: Paperback
It's the most efficient material to prepare the test.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2020
★★★★★ 5
All around helpful---worth the money!
Format: Paperback
This guide has been most helpful for all the folks I help prepare for the iTEP test! It gives insight into what each section of the test is looking for along with examples and great tips about actually TAKING the test. In the Writing and Speaking sections, it also gives sample scores and comments from the Master Grader which is very helpful too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 9, 2019