Originally posted by fieldofdreamsflyer
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Freewing 90mm F-22 Raptor - Official Thread
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Originally posted by Jayf636 View PostHi all,
I am strongly considering the ARF+ version, but have two options for power systems that I already have from other projects. The problem is I don't know how either will perform in this airframe so I am also considering just going with the pnp version. Any advice? I have a Freewing 8s edf 4075-1250kV 12 blade system I originally thought I wanted to use but the pnp version of this bird uses a 1390kv. So I'm worried I won't get the top speed out of it that I would from the pnp version. Then I also have a freewing 12 blade 6s system with 4068-1680kv inrunner. How would this compare against the pnp 9 blade setup? I really don't want to kill packs or sub 3 minute flight times just chasing top speed, but also don't want sub par performance to the stock 9 blade which looks like a great all around performance setup.
Thanks!
J
I'd normally recommend getting the 6s PNP, but since you already have two power systems, I think buying the cheaper ARF Plus makes more sense for your wallet. Your 4068-1680kv inrunner will be a good setup in this F-22. Your older 8s setup will be good, too. I've flown both. As I've mentioned before in this thread, the F-22 can be flown in such a way that the 10% difference in 8s motor kv won't be that noticeable in the air. I'd also encourage against chasing pure speed in the F-22. It's large lifting surfaces make it optimized for a wider flight envelope than simply going fast in a straight line.
I think you'll be happy with the cheaper ARF Plus because you could test both of your power systems and decide for yourself which you prefer according to your personal flying style and flight goals.Live Q&A every Tuesday and Friday at 9pm EST on my Twitch Livestream
Live chat with me and other RC Nuts on my Discord
Camp my Instagram @Alpha.Makes
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Originally posted by Tanguy51 View PostOh great.....F22. Is it grass operated like F4?
You can see a takeoff and landing on grass at the end of the flight review video that James posted earlier:
Bajora, thanks for posting those photos! Your photos show off the subtle shading gradients and different tones of the various decals. Difficult to describe in writing, but the net result to the human eye is more depth and realism.Live Q&A every Tuesday and Friday at 9pm EST on my Twitch Livestream
Live chat with me and other RC Nuts on my Discord
Camp my Instagram @Alpha.Makes
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Thank you for advancing the hobby MotionRC! I'm looking forward to flying the 8S F-22! I'll need more straps to hang this gorgeous jet. I sew d-rings onto straps and hang them on a hook. I use padding around the leading edge on my heavier aircraft. Your company sells transmitter and keychain lanyards. We need padded aircraft lanyards with a quick release to display these fine aircraft please. Yellow wheel chocks would be great also because my walls get dirty from the wheels.
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Originally posted by RuthR720 View PostThank you for advancing the hobby MotionRC! I’m looking forward to flying the 8S F-22! I’ll need more straps to hang this gorgeous jet. I sew d-rings onto straps and hang them on a hook. I use padding around the leading edge on my heavier aircraft. Your company sells transmitter and keychain lanyards. We need padded aircraft lanyards with a quick release to display these fine aircraft please. Yellow wheel chocks would be great also because my walls get dirty from the wheels.
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Originally posted by Mike_Then View PostSo what does the 'roller' do?
Its Kind off like sliding home on your buns ;)
Please see it in action at 15:15 in the provided link.
Join James for a spec overview, unboxing and assembly of the new F-22 Raptor. Video Table of contents below:1:54 - Spec Overview2:24 - Unboxing7:06 - Install...
Pete
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Originally posted by sailing1 View PostPre ordered the 8s version. What batteries are recommended?
Link to 5000 6s: https://www.motionrc.com/collections...-ec5-connector
Link to 5000 2s: https://www.motionrc.com/collections...ttery-with-ec5
The 6S and 2S 5000 have the exact same cells. They were made to work together.
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Originally posted by Bajora View Post
I’m sure others like myself would appreciate it.
thanks!
J
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Originally posted by Flanker271 View PostDoes Motion carry EC5 to Deans (T-type) adapter? I only see EC3 to Deans adapter, but not EC5 to Deans. My entire fleet use Deans Ultra plugs.
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Thanks for the info James. I've been using Deans for over a decade and it'll be a pain to swap everything to another connector type. I've actually converted many Admiral batteries to Deans, just so that I don't need to mess with adapters. Seeing the F-22, there are UBEC wires in conjunction with the ESC power wire coming out of the EC5 connector, it will be a hassle to solder them on Deans, which is why I asked if an adapter is available.
I don't really trust those online adapters from eBay or Amazon, because the Deans plug they use are not genuine W.S. Deans Ultra plugs, hence the amperage rating might not be on par with the genuine Deans. I also don't trust their soldering job.
So far I've not had any issues with using genuine Deans. One of my F5B hotliner pulls 175amp (4 second burst) and it seems to hold up fine.
If I were to do it all over again, yes I'll definitely use newer plugs. It's just a massive pain to swap everything out now.
P.S. one of the guys at my field carries a giant plastic box (the kind that you use to organize various fishing baits) full of adapters. EC3 to XT-60, EC3 to EC5 (still don't know why he even bothered with this), Tamiya to Traxxas, Anderson Power Pole to Deans, etc. Then multiply that by four to cover all the male/female combinations. What a giant mess.
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James, you are right on. An EC5 can handle a LOT more current than a T connector. I purposely avoided adding an EC5 to T connector adapter to motionrc.com because of the massive potential to bring down a plane. A T connector will melt and potentially start on fire at a current draw an EC5 is perfectly comfortable with. Using a T connector on something like this F-22 will, with near 100% certainty, cause the T connector to melt and the plane to fall to the ground powerless. I know this first hand because we had a customer try it on the Freewing ME-262 a number of years back. The customer cut off the EC5 and soldered on T connectors. The T connectors melted about 30 seconds into the flight and the plane lost power and ended up in the ground. On the other hand, we do have an EC3 to T connector adapter because they both handle similar levels of current.
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I concur with James' advice, I've been flying high volt high amp birds for a number of years(up to 100cc elec). For Deans, I draw the line at 75 amps. Many will disagree, I'm sure.
Think of your connector as the neck of a funnel. The smaller the neck, the less will go through unrestricted. If a funnel backs up you have a mess on your hands. With electricity, that restriction causes resistance, resulting in heat, reduced performance and often component failure. Flying our aircraft with those conditions rarely ends well. In the case of larger EDFs, large good quality connectors are always a better choice.
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Flanker, I HIGHLY recommend dropping the Deans for 6S applications and moving to XT90. All my 6S is on XT90 and I've had 0 issues. They're SUPER easy to solder (trying to get those EC5s in the housing has driven me nuts before) and keep neat.
One flying buddy of mine USED TO fly 6S jets on XT60 until a month or so back, when his leads came unsoldered from the connector due to high amp draw during a flight. Maybe it was a cold soldering job, but still... 60s are not designed for draw over 60 amps. Same for Deans - and I believe they're only designed for up to 50 amp draw. Another buddy of mine flies 6S warbirds on Deans... and I think it's only a matter of time until he encounters the same issue as that other friend I mentioned.
I'll keep preaching the XT90 gospel. They're super easy to deal with.
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