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Old Mar 21, 2012, 02:46 PM
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BlitzRCWorks F5-E V2 Swiss: Ok, ready or not, here I go!!!

Ok, so I'm finally ready to take my F5-E for it's maiden flight...well, maybe not ready but, it's gonna happen! :P

This will also be MY maiden flight as well. And by that I mean my first time EVER flying any kind of RC plane, period!

I've let it set after building it for 3 days now, mainly due to work. I've also spent countless hours on the USC RC Trainer and even an RC sim on my phone while at work! haha

I know a lot of you guys out there expect total failure and maybe that will turn out to be true, however I am gonna give it my best!

I am going to record the first flight and I mean the VERY first flight with my GoPro HD Hero2 video camera. And whether it is a success or total failure, I will post the video for all to see, lol :P

Wish me luck guys!!! (and if I crash too bad, I'll buy another, haha, but I will NOT give up!!)
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Old Mar 21, 2012, 05:52 PM
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clinth01's Avatar
Townsville, Australia
Joined Sep 2009
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You obviously know how difficult this may be, so I'm not going to try to talk you out of it

Best advice I can think of is to keep the speed up, and be prepared for how fast it will go. For some reason, real life is much quicker than simulators.

Good luck, and I'm looking forward to the video
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Old Mar 21, 2012, 07:15 PM
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Originally Posted by clinth01 View Post
You obviously know how difficult this may be, so I'm not going to try to talk you out of it

Best advice I can think of is to keep the speed up, and be prepared for how fast it will go. For some reason, real life is much quicker than simulators.

Good luck, and I'm looking forward to the video

Hey, thanks for the advice!

Some before pics, in case it is unrecognizable tomorrow! ;D



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Old Mar 21, 2012, 08:16 PM
It's watts for dinner
United States, GA, Marietta
Joined Oct 2011
939 Posts
If you have a computer radio, dial plenty of negative expo into the ailerons. That will help keep you from over-controlling. Don't mess around on your first flight. Get altitude and make a few passes at moderate throttle to trim the plane out. Then make a couple of low speed passes up high to get a feel for low speed handling and any bad stall tendencies (tip stalls, etc). Make sure you carry enough speed on the approach to avoid any such bad tendencies. Land early so you have enough battery to go around a few times if you have to. Don't force a bad landing - go around.

Vaya con Dios!
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Old Mar 21, 2012, 11:25 PM
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United States, GA, Snellville
Joined Nov 2005
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Originally Posted by sjw985 View Post
If you have a computer radio, dial plenty of negative expo into the ailerons. That will help keep you from over-controlling. Don't mess around on your first flight. Get altitude and make a few passes at moderate throttle to trim the plane out. Then make a couple of low speed passes up high to get a feel for low speed handling and any bad stall tendencies (tip stalls, etc). Make sure you carry enough speed on the approach to avoid any such bad tendencies. Land early so you have enough battery to go around a few times if you have to. Don't force a bad landing - go around.

Vaya con Dios!
JR/spektrum you want positive Expo to soften center stick, futaba is Negative expo...
what radio you using, im guessing the stock RTF radio?
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Old Mar 21, 2012, 11:41 PM
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make sure you get the right CG location . Where is it?
a little nose heavy is safer :-)
and make sure the battery do not move in flight .....

good luck...
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Old Mar 22, 2012, 02:45 AM
Do it Right, the first time!
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United States, MN, Hermantown
Joined Dec 2008
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Well, as Hollywood said to Maverick, in Top Gun, Gutsiest move I ever saw!!

Best of Luck.
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Old Mar 22, 2012, 06:10 AM
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Brave! Good luck and looking forward to the video!
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Old Mar 22, 2012, 10:44 AM
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Wow, thanks guys for all the tips!! I will take heed to every word! Yes, it is the stock RTF radio until I can get the Spektrum DX7 in the mail.

The CoG is just forward of the wings where the battery goes in (underneath the plane). I have some light weight foam to stuff in there and keep the battery from moving.

Here goes nothing, take off in 15 minutes!!!
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Old Mar 22, 2012, 12:48 PM
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Florida
Joined Jul 2010
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Sweet!
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Old Mar 22, 2012, 02:08 PM
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Well, that didn't go quite as I intended it to! Bwahaha....

Drum roll please......here is the aftermath.

It had all kinds of "bad idea" written all over it. The winds were steady 10-15mph, gusts were horrible. Thunderstorms are moving in this afternoon.

But the anticipation had been growing all week and I couldn't contain myself! My common sense said, "Just be realistic, we'll come back another day, it's already gonna be hard, don't complicate it more by trying to fly strong winds!"

The other problem maybe was that the grass was not as short as I originally thought so I had to hand launch.

First hand launch: right after and i mean RIGHT after I let go, a huge gust of wind blew across it. It quickly went down, small part of the stabilizer broke off but, it was a clean brake and nothing to keep it from another attempt.

Second hand launch: Right after launch, it got wobbly then started to settle and I gained control of the aircraft, that feeling was instantly amazing and enough to get me HOOKED!!!

However I attempted to turn slight left and pull up to get some decent altitude...and it rolled extremely fast and when I pulled the yoke back it took a nose dive into the ground!!

I'll post the video soon so you can see exactly how it happened.

I think my roll rates and throw were set up wrong. If I post a picture of where my control arms are set up and what all the settings on my transmitter, could someone help me set it correctly for first launch?

Here are some pics, video coming soon...



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Yes, I know, you guys told me so! But I am hooked now and will not give up!!!
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Old Mar 22, 2012, 02:28 PM
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United States, TN, Jackson
Joined Mar 2007
3,996 Posts
The thing is with a jet there isn't any prop wash over the flying surfaces...You have to soley rely on speed to get the model flying---It's the first few feet when you throw the plane and where it gets on step are the most critical...You want a docile flying plane but need enough throw to get you out of trouble until the plane gets on step...This is where expo and dual rates are your friend!!!...I doubt that your stock radio has expo...Wait for the DX-7 to get here before trying again...

Kevin
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Old Mar 22, 2012, 03:06 PM
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Originally Posted by Kevin Greene View Post
The thing is with a jet there isn't any prop wash over the flying surfaces...You have to soley rely on speed to get the model flying---It's the first few feet when you throw the plane and where it gets on step are the most critical...You want a docile flying plane but need enough throw to get you out of trouble until the plane gets on step...This is where expo and dual rates are your friend!!!...I doubt that your stock radio has expo...Wait for the DX-7 to get here before trying again...

Kevin
Sound advice, my friend...and I think that is a great idea. I'll post a pic in a few minutes to show you what my transmitter looks like and what all the settings were at for the flight...maybe it was totally off from the get go...
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Old Mar 22, 2012, 04:22 PM
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Hurst, Texas USA
Joined Jan 2002
701 Posts
Love the ambition, but you are putting yourself in the worst possible scenario for a new pilot. Hand launching an unproven ducted fan model in high wind is risky business for even experienced pilots.

Since you have not flown before, my suggestion is this. For less than $100 you can get a Champ, which is a smallish easy flying plane that comes with everything you need to fly in one box. This plane is geared for first time flyers.

Get your ducted fan model ready to fly again, but take your lumps with something like the Champ. Once you have mastered the Champ, give your ducted fan model another shot !

You may get some helpful information from posting video of your attempt. There may be a balance problem or something else going wrong here someone may point out.

Best of luck to you !
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Old Mar 22, 2012, 05:41 PM
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Townsville, Australia
Joined Sep 2009
319 Posts
Hi Semperfi

Well, this ended as I feared it would. You've learnt some lessons (I hope ).

Usually (just like in the real world), flying jets is a progression from flying prop aircraft, where the knowlege and skills are accumulated over time. It's at a level that a beginner in RC aircraft would not usually start at, and the assumption by manufacturers seems to be that there will be a certain degree of prior knowlege and experience before attempting to fly EDF aircraft. I'm not trying to discourage you, but if it were that easy, new F-22 pilots would be jumping straight from the classroom into the cockpit .

Most PNP EDF airframes are supplied with just enough power to coast around the sky, but this is usually at close to full throttle so not real good for batteries or flight times. It also means that there's not usually enough grunt to ROG from grass either. So you will probably have to handlaunch, which is a whole new set of additional issues to deal with.

If you REALLY want to fly that jet, get yourself a prop trainer, hunt out your local club, join and get some tuition, and then get yourself some serious airtime. Ask for help, pick their brains dry. There will be many tens of thousands of hours of practical, hands-on experience for you to take advantage of.

Fix your jet, and then put it away for a while. I guarantee that it will wait until you're ready .
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