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Generally a 70 mm EDF needs 150% of the watts to get the same performance as a conventional 2 blade prop (just put it in the nose and stick on a spinner)
That means you have the heavier EDF installation with a bigger heavier motor and you need 150% the battery weight to get the same flight time... and then with all that added weigh, you might not get off the ground.
So we sacrifice on battery capacity. (and still end up heavier and slower than we would get with a conventional prop at the same watts)
But the appearance and sound make up for it. and the type models we put EDFs in tend to be fast by design.
There's some economy of scale letting bigger EDFs be a bit less inefficient compared to the conventional prop also.FF gliders and rubber power since 1966, CL 1970-1990, RC since 1975.
current planes from 1/2 oz to 22 lbs
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Maybe my numbers are a bit biased then. I only run 2 blades on my Cub. Everything else runs scale diameter (or close) 3-5 blade props. For those, flight time heavily depends on flying style as well. Hammering full throttle on my FMS P-47 probably would be a 3-4 minute flight. Flying it scale with mixed throttle and a few high speed passes had given me flight times up to 10 minutes.
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Originally posted by Oxotnik View PostWarbird Charlie
HSD Skyraider FlightLine OV-10 FMS 1400: P-40B, P-51, F4U, F6F, T-28, P-40E, Pitts, 1700 F4U & F7F, FOX glider Freewing A-6, T-33, P-51 Dynam ME-262, Waco TF Giant P-47; ESM F7F-3 LX PBJ-1 EFL CZ T-28, C-150, 1500 P-51 & FW-190
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Originally posted by rifleman_btxThis is why I hate edfsCheck me out on youtube at https://www.youtube.com/user/gooniac33
I am an RC addict and innovator that loves to share my knowledge with those that need help. Ask me anything via PM if you need help! Check out my Website here https://www.gooniac33.me/
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I admit I put the pedal to the metal. lolCurrently flying: Twin 80mm A-10, 80mm F5, 80mm A6, 70mm Yak-130, 70mm F-16v2,90mm Stinger 90, 70mmRC Lander F9F, Flightline F7F TigerCat, Phoenix 46 size Tucano, Flyzone L-39
Out of Service: 80mm Mig-21,64mm F-35, 64mm F/A-18
I Want: 80mm A-4, twin 80mm F4J Phantom
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Originally posted by dahawk View PostI admit I put the pedal to the metal. lolCheck me out on youtube at https://www.youtube.com/user/gooniac33
I am an RC addict and innovator that loves to share my knowledge with those that need help. Ask me anything via PM if you need help! Check out my Website here https://www.gooniac33.me/
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Originally posted by rifleman_btxThat's pretty much why that is the only one I'm considering to try since the last I've flown one was in 2009
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With twin 6S 6250mah 35 RT's I can get 5 min with the A-10 which of all of my edf's offers the longest flight times. DD is 100% correct about the A-10's wide speed range. With throttle management( hard for me to do) I get about 4 min on the BAE Hawk T1 with an Admiral 5000. The A-4 is around 3 min.maybe 3.5 min on a good day. But that's just me.Currently flying: Twin 80mm A-10, 80mm F5, 80mm A6, 70mm Yak-130, 70mm F-16v2,90mm Stinger 90, 70mmRC Lander F9F, Flightline F7F TigerCat, Phoenix 46 size Tucano, Flyzone L-39
Out of Service: 80mm Mig-21,64mm F-35, 64mm F/A-18
I Want: 80mm A-4, twin 80mm F4J Phantom
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I am seriously considering picking up one of those Flexjets...They look like a ton of fun with a crazy gigantic flight envelope.My YouTube RC videos:
https://www.youtube.com/@toddbreda
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I think the next plane is the MiG15. Here is why. It was the foil to the F-86 Sabre. It is the product of a failed empire: the USSR. They were in a natural metal finish like Aluminum foil is (in Korea). The only way I can think the Summer Breeze thing figures into it is that the First MiG flown by Western pilots had faulty climate control and the A/C did not work.
That is my best guess.
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I was leaning towards Super Sabre. A Sabre being a foil.Currently flying: Twin 80mm A-10, 80mm F5, 80mm A6, 70mm Yak-130, 70mm F-16v2,90mm Stinger 90, 70mmRC Lander F9F, Flightline F7F TigerCat, Phoenix 46 size Tucano, Flyzone L-39
Out of Service: 80mm Mig-21,64mm F-35, 64mm F/A-18
I Want: 80mm A-4, twin 80mm F4J Phantom
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