My 5" brings a lot of joy and excitement. it generates a ton of thrust. the higher pitch helps with hitting the right spot within the thrust range. It's also more efficient and lasts longer every session.
I tested a whole bunch of 7 inch props a while back and I settled on the DAL7056. I would love to have seen them in this roundup, as they were definitely a clear standout from the rest, at least on my long range quad.
I agree. They are the best prop for mountain surfing and pushing long distances. However it produces quite a lot vibrations in my experience. They should release a new strengthend version
@@ariafpv Yes, I agree - I really wish they would release an updated version. The other downside to them is if you get a stress point in them, they break easily. I inspect my props where the blade meets the hub every flight. Any opaque area caused by stress can mean a lost blade. I've had that happen a couple of times, but thankfully only during testing.
@@MactacFPV yeah the new thicker hub is better but the blade is still way too thin to eliminate this stress point. I have talked to them a few times but it doesn't seem like they understand the demand for this
What a gem of data. I am a big fan of 7 inch quads and have just built another one. Will take your findings in consideration for my propeller of choice. Great video and thanks for all the help.
As for #HQProp propellers, after testing the 7" ones, I managed to put together one relatively decent pair out of two. However, I can't say I'm entirely satisfied with the result. I haven't encountered such issues with #Gemfan so far.
Thanks Chris for that great test! Very much appreciated! Currently I test the Foxeer Aura7 - and since the O3 is really prone to jello I will go away from the Foxeer 7" cnc hub folding props (have you tested them also?) and from your test I like the versatile and smooth HQ 7x3.5x3 V1s! thanks, br, Mario
Thank you for great content, and, PLEASE test Dalprop Fold 7 inch and 5 inch props - very interesting to know if they are ok or much worse than non-foldable props
Very interesting and informative video. I've got two 7" builds, including one AOS-7. You helped me decide what props to try. I also have a Merica 8 inch build if you decide to test larger props. Happy flying everyone. 😎
Something to consider is that these results are from a test stand, which does not allow the props to fully unload. This is going to affect the higher pitched props especially. Once they are airborne and are allowed to unload, the pitchier prop is going to see much better efficiency numbers. Not something you can really show in your test, but its something that is easily left out
I love the GF 7035 2-blade but found that I get oscillations with it at times that I don't get with the 3 bladed version. Shame because the 2 blade gives higher cruising speed and longer flight times
I've really been doing my research on 7 inch props and talked to pretty hardcore 7 inch long range pilots. Some packed with heavy load 21700 6s2p li ion packs. Dont know why, but three of them told me they are liking the HQ J75 props most. Interesting how thrust stand testing and real world experience show different results. 🤔 Just waiting for the aos 7 v2 frame haha
Yeah i like em too. Fast, grippy when needed and efficient when at cruisespeed. Better than the HQ 7x4x3 for sure. Only downside is bad balance but with a cruiser one can take the time and balance the blades as they wont break all the time like on a freestyle quad.
Hello what is the different to the HQ Durable Prop 7×3.5x3V1S and the HQ Durable Prop 7X3.5X3 Light Grey (2CW+2CCW) HQ Durable Prop 7X3.5X3. one is missing the v1s. is it the same prop?
Trying figure out best 8" prop for small motor (2806.5) I think MasterScrew 8x4.5x2 at 8g did the best but GF 8x4x3 11g hasnt done bad at all. I am planning on trying HQ Prop 8x3.7x3 12g. On drone flights so hard to tell. so many variables change flight times. Going for long flight times. Usually I cruise slow. 30mph to maybe 40mph. Sometimes slower 25mph exploring
Thanks Chris, ordering some new 7" props. Got a few that didn't make the list and wanted to know if you have a chance let us know. I have here the Hurricane 7035 Black Reinforced PC, and the Gemfan 7035 Carbon Nylon. I'll join your Discord to keep the conversation going but great work, love that you share this data.
You say 7" is the perfect size but I know from experience you can do just as much with 3" as you can with 7". It's not the size that matters it's how you use it.
When I can't get the range with my 7 inch I strap the GoPro 10 to my Acrobee BeeBrain, so stable and I regularly get 45 minutes of run time and 30 km of flight... 🙊
I watched your mythbusting video on 2207 v 2306 before this. I have a question about using the 2207 with 7". On the mythbusting video you pointed out that the 2207 and 2306 weren't hitting their limits. Meaning they comfortably had the torque to spin the 5" which is why they didn't hit their limit. So how would a 2207 perform with 7"? Let's say a 2207 1700kv on 4s for instance.
Is the AOS 7 the same AOS 70 Cine I bought from your site? If not what are the differences? EDIT: Ok.. I'll answer this.. the cine is an x8.. not 4, and the arms are standing up vertical vs flat so I assume they are more stable/sturdy/durable? Not sure if there are any other differences.
Rubber bobbins dampen the vibrations but they also slow down the vibrations to a lower frequency that is harder to filter out. Lower frequency vibrations are worse for tuning than higher. On 5" it can work alright but on 7" its a big no no. I have tried on my 7" and using the silicon dampeners in the FC kit won hands down. Much easier to filter and flies better.
Depends on the desired cruising speed. If you have a camera uptilt of 30 degrees the inflow velocity in cruise is not very different from hover. If you run 60 degrees then you may want a higher pitch prop. Not many long range pilots I know run high uptilt.
Hey Chris, for me comparing efficiency at such high value of thrust is kind of nonsense. A more "realistic" or "real world" value would be cruise/hover thrust. So lets say around 25 to 30 percent of take off weight from a typical 7 inch quad, for me that would be 350 g. Or is that meant by 1400 g? Anyway thank you for the overview of 7 inch props.
Hi Chris. after this video I have sw,ithed to Hq7035. But during my flight one of propellers failed and my quad fall over mountain. th-cam.com/video/rPq1hcn5ifo/w-d-xo.html . I am looking for more durable prop. What is your recomendation for me. Thanks.
On my 7" testing GF 7035-2 did great at faster speeds but at slow speeds I felt like GF 7035-3 or HQ 7x3.5x3 gave me the longest flight times. I kept some data. but lost my data before i could finish chart. Harddrive crash. ( docs.google.com/spreadsheets/d/1RVUWpNZGYDaEwrp2op8mLoPFeZWQw_THfT4Y9eCxDJM )
You get long flight time, but fly pretty slow. Your distance is similar to mine. Just longer and slower flight. Anyway, how do you like 7 vs 8 vs 10 inch ? I like 8 inch most at the moment
My 5" brings a lot of joy and excitement. it generates a ton of thrust. the higher pitch helps with hitting the right spot within the thrust range. It's also more efficient and lasts longer every session.
I tested a whole bunch of 7 inch props a while back and I settled on the DAL7056. I would love to have seen them in this roundup, as they were definitely a clear standout from the rest, at least on my long range quad.
I agree. They are the best prop for mountain surfing and pushing long distances. However it produces quite a lot vibrations in my experience. They should release a new strengthend version
@@ariafpv Yes, I agree - I really wish they would release an updated version. The other downside to them is if you get a stress point in them, they break easily. I inspect my props where the blade meets the hub every flight. Any opaque area caused by stress can mean a lost blade. I've had that happen a couple of times, but thankfully only during testing.
@@MactacFPV yeah the new thicker hub is better but the blade is still way too thin to eliminate this stress point. I have talked to them a few times but it doesn't seem like they understand the demand for this
Chris Rosser - the professor. Your detailed presentations are super informative and a real resource of knowledge.
This is great data! Thanks so much for doing this work. Love to see 8inch prop comparisons.
I'd love to see as well a comparison between 7" 7.5" and 8" !!!
As I'm hesitating between a 7" and a 8" build, I wonder what is optimal.
Thanks, really useful info. I personally prefer HQ DP 7x4x3, and I balance them from the start all the time. They seem the most solid for my FR7
Very informative, good video. Thanks for this and keep up the good work.
What a gem of data. I am a big fan of 7 inch quads and have just built another one. Will take your findings in consideration for my propeller of choice. Great video and thanks for all the help.
Try the DAL Cyclone 7056. REALLY smooth prop the pushes tons of thrust.
Fantastic testing, Chris! Pretty interesting results indeed!!! 😃
Stay safe there with your family! 🖖😊
Dude you are a rockstar. I asked for this in the 5" prop test vid and you came back quick! Ordering the Cine70 next month!
Excellent info - great info and well presented !
As for #HQProp propellers, after testing the 7" ones, I managed to put together one relatively decent pair out of two. However, I can't say I'm entirely satisfied with the result. I haven't encountered such issues with #Gemfan so far.
Thx, finally i can test some other 7.5 inchs. Till now i only knew the hq once.
Thanks Chris for that great test! Very much appreciated! Currently I test the Foxeer Aura7 - and since the O3 is really prone to jello I will go away from the Foxeer 7" cnc hub folding props (have you tested them also?) and from your test I like the versatile and smooth HQ 7x3.5x3 V1s!
thanks, br, Mario
Thank for Chris, for determining the two best 7" that offer maximum pleasure
Thank you for great content, and, PLEASE test Dalprop Fold 7 inch and 5 inch props - very interesting to know if they are ok or much worse than non-foldable props
Very interesting and informative video. I've got two 7" builds, including one AOS-7. You helped me decide what props to try. I also have a Merica 8 inch build if you decide to test larger props. Happy flying everyone. 😎
I would love to see a test on a test rig that can adjust the attitude of the prop relative to a external air flow
Nice work, valuable data and nice clear speech. Greetings form Russia!
Thanks for the great overview... 🙂
Something to consider is that these results are from a test stand, which does not allow the props to fully unload. This is going to affect the higher pitched props especially. Once they are airborne and are allowed to unload, the pitchier prop is going to see much better efficiency numbers. Not something you can really show in your test, but its something that is easily left out
the video I was waiting for!
I love the GF 7035 2-blade but found that I get oscillations with it at times that I don't get with the 3 bladed version. Shame because the 2 blade gives higher cruising speed and longer flight times
As size is an issue with 7 inch props, can you test some folding ones too?
I've really been doing my research on 7 inch props and talked to pretty hardcore 7 inch long range pilots. Some packed with heavy load 21700 6s2p li ion packs.
Dont know why, but three of them told me they are liking the HQ J75 props most.
Interesting how thrust stand testing and real world experience show different results. 🤔
Just waiting for the aos 7 v2 frame haha
Liking vs actually efficient is kinda hard
Yeah i like em too. Fast, grippy when needed and efficient when at cruisespeed. Better than the HQ 7x4x3 for sure. Only downside is bad balance but with a cruiser one can take the time and balance the blades as they wont break all the time like on a freestyle quad.
Hello what is the different to the HQ Durable Prop 7×3.5x3V1S and the HQ Durable Prop 7X3.5X3 Light Grey (2CW+2CCW)
HQ Durable Prop 7X3.5X3. one is missing the v1s. is it the same prop?
Hi Chris.
Looking for the gemfan 7537-3. Can't find them, can't even find anyone that has sold them?
Thank you. How did you measure vibration?
Great info!
Trying figure out best 8" prop for small motor (2806.5) I think MasterScrew 8x4.5x2 at 8g did the best but GF 8x4x3 11g hasnt done bad at all. I am planning on trying HQ Prop 8x3.7x3 12g. On drone flights so hard to tell. so many variables change flight times. Going for long flight times. Usually I cruise slow. 30mph to maybe 40mph. Sometimes slower 25mph exploring
A wonderful video. Which motor you are using and what is its KV?
Time to test tiny whoop props now too
As usual, great video, Chris! What motor was used to get these results?
I’m seeing my stack of GF 7040-3 and they are just middle of the road. I might have to try something new
Same here lol
Thanks Chris, ordering some new 7" props. Got a few that didn't make the list and wanted to know if you have a chance let us know. I have here the Hurricane 7035 Black Reinforced PC, and the Gemfan 7035 Carbon Nylon. I'll join your Discord to keep the conversation going but great work, love that you share this data.
What is Gemfan 7035 carbon nylon like? I plan to buy it 😁
You say 7" is the perfect size but I know from experience you can do just as much with 3" as you can with 7". It's not the size that matters it's how you use it.
Never gets old
That's what she said I guess. 😬
The physics say that's Chris is right. Especially for speed AND range bigger is better
I often long range with a 1.6 inch. It is known
When I can't get the range with my 7 inch I strap the GoPro 10 to my Acrobee BeeBrain, so stable and I regularly get 45 minutes of run time and 30 km of flight... 🙊
I watched your mythbusting video on 2207 v 2306 before this. I have a question about using the 2207 with 7".
On the mythbusting video you pointed out that the 2207 and 2306 weren't hitting their limits. Meaning they comfortably had the torque to spin the 5" which is why they didn't hit their limit.
So how would a 2207 perform with 7"? Let's say a 2207 1700kv on 4s for instance.
Is the AOS 7 the same AOS 70 Cine I bought from your site? If not what are the differences? EDIT: Ok.. I'll answer this.. the cine is an x8.. not 4, and the arms are standing up vertical vs flat so I assume they are more stable/sturdy/durable? Not sure if there are any other differences.
Sir, that intro lmfao
Finally!! You missed the very $$ ($3 each) HQ glass infused props. :)
Would you anticipate similar results on a 1kg build?
The beginning had me weak! 😂
May I ask, which motor size is the best for lr 7inch, 28xx or 30xx?
can you do one for 6inch props ?
Hello. Please tell me how best to mount FC:
1) Rubber bobbins with nut and threaded part
2) Silicone damper balls from the FC kit
Rubber bobbins dampen the vibrations but they also slow down the vibrations to a lower frequency that is harder to filter out.
Lower frequency vibrations are worse for tuning than higher. On 5" it can work alright but on 7" its a big no no. I have tried on my 7" and using the silicon dampeners in the FC kit won hands down. Much easier to filter and flies better.
@@minaexperiment Very interesting observation, thanks.
My wife laughed at the intro
wouldn't higher pitch props be more efficient on longrange quads because of the inflow velocity?
Depends on the desired cruising speed. If you have a camera uptilt of 30 degrees the inflow velocity in cruise is not very different from hover. If you run 60 degrees then you may want a higher pitch prop. Not many long range pilots I know run high uptilt.
Wonderful video! But my dirty mind can't stand the intro 😆
For the first 33 seconds of the video I thought that I accidentally clicked into a porno..... 😅
Hey Chris, for me comparing efficiency at such high value of thrust is kind of nonsense. A more "realistic" or "real world" value would be cruise/hover thrust. So lets say around 25 to 30 percent of take off weight from a typical 7 inch quad, for me that would be 350 g. Or is that meant by 1400 g? Anyway thank you for the overview of 7 inch props.
Hi Chris. after this video I have sw,ithed to Hq7035. But during my flight one of propellers failed and my quad fall over mountain. th-cam.com/video/rPq1hcn5ifo/w-d-xo.html . I am looking for more durable prop. What is your recomendation for me. Thanks.
No GF 7056x3 pro?
Can you change your camera angle?
I mean that intro kind of made my mind go somewhere it shouldnt of…. 😅
i thought you're going faint for the first few seconds!
🤣 longer and faster 😂☠️
Lmao!!
On my 7" testing GF 7035-2 did great at faster speeds but at slow speeds I felt like GF 7035-3 or HQ 7x3.5x3 gave me the longest flight times. I kept some data. but lost my data before i could finish chart. Harddrive crash. ( docs.google.com/spreadsheets/d/1RVUWpNZGYDaEwrp2op8mLoPFeZWQw_THfT4Y9eCxDJM )
You get long flight time, but fly pretty slow. Your distance is similar to mine. Just longer and slower flight.
Anyway, how do you like 7 vs 8 vs 10 inch ?
I like 8 inch most at the moment