Thanks everyone for their feedback. I assume some of you have noticed something weird with the blade section drawings on a couple charts. I guess I could have drawn them more realistically. Task for my viewers: draw the blade angle correctly. Hint: rotate them CCW.
maam thank you for your video, i have a fantacy to design and build a light aircraft for myself with a turbine engine which i really love to i design and build myself, the problem is i couldnt find a proper information resource so i can read and learn, in a neaningful time without studing at univercity for 20 years, can you please name some refrence books for designing planes and turbine engines and what softwares are better for me to use please?
13:19, your suggestions for static WOT rpm: There is a video by Jonas Marcinko (th-cam.com/video/HIT3e1QgphA/w-d-xo.html) where the WOT static rpm is a bit higher than level-flight WOT rpm for some pitch settings of the newly installed ground-adjustable Eprop propeller. I presume the narrow-bladed propeller blades go into a relatively low drag stall state when revved up on the ground.
On my electric-powered radio-controlled models, I try to use a prop that has a diameter-to-pitch ratio (D:P) of at least 1.5:1 and no more than 2:1. This provides good acceleration on takeoff, good cruise speed, and longer flight times.
Do it with real examples and with you on the screen. and some friends around or plane interested people around. then the passion will shine through and the video ill be more educational.
That video is improving the quality of TH-cam videos, thank you very much!
Sonja, really enjoy your videos. I wish you a Merry Christmas and a berry good new year!!
Thanks everyone for their feedback.
I assume some of you have noticed something weird with the blade section drawings on a couple charts. I guess I could have drawn them more realistically. Task for my viewers: draw the blade angle correctly. Hint: rotate them CCW.
I have not flown a prop driven aircraft in forever, but I stayed for the whole propeller TED talk. :)
The best video about propellers I've seen. I'm starting to follow you because I'm sure you'll have very interesting material. Thank you very much.
Very informative.
#1 You go, Sonja!
Excellent, Sonya. Thanks.
Great, concise video.
Excellent !
I've not seen a propeller design like 0:47 before, how does the very tapered tip work?
It is a design by the late Paul Lipps (Elippse Propellers). There is an article by Paul on EAA Experimenter 2009-02
@@JuanLuisBarrrionuevo Thanks!
maam thank you for your video, i have a fantacy to design and build a light aircraft for myself with a turbine engine which i really love to i design and build myself, the problem is i couldnt find a proper information resource so i can read and learn, in a neaningful time without studing at univercity for 20 years, can you please name some refrence books for designing planes and turbine engines and what softwares are better for me to use please?
Please sign up to www.homebuiltairplanes.com/forums/ and ask your questions there.
13:19, your suggestions for static WOT rpm: There is a video by Jonas Marcinko (th-cam.com/video/HIT3e1QgphA/w-d-xo.html) where the WOT static rpm is a bit higher than level-flight WOT rpm for some pitch settings of the newly installed ground-adjustable Eprop propeller. I presume the narrow-bladed propeller blades go into a relatively low drag stall state when revved up on the ground.
On my electric-powered radio-controlled models, I try to use a prop that has a diameter-to-pitch ratio (D:P) of at least 1.5:1 and no more than 2:1. This provides good acceleration on takeoff, good cruise speed, and longer flight times.
👍
Do it with real examples and with you on the screen. and some friends around or plane interested people around. then the passion will shine through and the video ill be more educational.