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Old May 01, 2013, 02:33 AM
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United States, FL, Marco Island
Joined Jan 2007
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RV Jet videos, Comments,Tips, Flight data,FPV gear build, RV NIGHTJET updates often!

The build went smooth the only deviation from design was to run the battery wires up and around rather then in the tunnel. I preferred to avoid the CF tube and stay further from the OSD location. But thats personal pref. and I was suggested to hot glue wires down in channel and still be able to pull them out if necessary.I changed and ran through channel provided.

Nice digital metal gear servos included! I assume they have been tested for RF noise.

Warning..Do not drive PnT servos past movement range of PnT or they will strip. Watch end range especially with a HT

Check prop eachflight.

I put 8oz of weight in the nose to balance at fin/wing point using 1 4400Mah 3s.
Hot glued nuts and bolts. first weight test was a roll of quarters.

Balances fine with 2-4400 and tracker but......
I realized that my 5000 Mah batts are 2.5oz heavier, total 5oz and won't balance at current placement. I think the only answer is to put OSD in front compartment and batts over CG. Ideally that should be the design, If batts are on cg then their wieght doesn't matter.

Glued extensions, Taping wing together for now.

East to launch tried both Power off throw and pull.Edit: staying with the pull!

Fun to fly! Loops tight but rolls very slow. I'll try more Aileron throw. Right now it's light 4lb. Climbs vertical easily.
Haven't tested stalls yet. Tracks well. As any wing and glider a small cg change can make a huge difference recommended CG seems right on!
As a fpv platform I'm a little concerned as I have to stay on the sticks more than my SW but that might just be me. Got to get more flight time before I judge that.

RVOSD and FPV gear added.

It would be nice if ESC had a arming switch but one can be made for about $2
see photos below.

Power consumption results.Conservative throttle mgmt. Usually glide from altitude to home. 2 Zippy 4400Mah
26 minute flight 2600Mah consumed 9 mi traveled 11.5V
17 minutes 1900Mah 6 11.86
38 4300Mah 15 11.24V
36 3600Mah 16 11.24V
62 5734Mah 23 11.00V Grabbed a few thermals!

Need to make a prop stop to keep blades from over folding, Right now it doesn't fold in air because brake isn't enabled but if it over folded it could destroy the plane if you tried to throttle up without knowing.
ESC Instructions= http://www.rangevideo.com/downloads/...ing_manual.pdf
Prop stop- http://www.fpvmanuals.com/prop-stop/
First flights
RV Jet maiden (5 min 31 sec)


Harrier landing
Harrier Landing BAT.avi (0 min 43 sec)


Front cam and rear cam
RV Jet FPV cam and rear cam overlay (12 min 15 sec)
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Old May 01, 2013, 07:16 AM
Any excuse to fly
Sunny/Windy FL
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In for the maiden . Good luck !
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Old May 01, 2013, 08:27 AM
Gravity is patient............
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Old May 01, 2013, 10:34 PM
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United States, FL, Marco Island
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They look fine to me. Anyone else have viewing issue?

Editing my Maiden video and comments, post in a few.
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Old May 01, 2013, 11:13 PM
Gravity is patient............
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Quote:
Originally Posted by picard10th View Post
They look fine to me. Anyone else have viewing issue?

Editing my Maiden video and comments, post in a few.
It was happening on my work computer but it's fine at home. Weird.
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Old May 02, 2013, 09:24 AM
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Picard10th

Cool Launches.....
Also, what happened on 3:35? Did it stall?

Can you take a picture of where the Actual COG is located?

Thanks....
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Old May 02, 2013, 10:10 AM
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Thanks for posting your pics and maiden video. Glad to see it launches so well with the "pull" method.
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Old May 02, 2013, 11:22 AM
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United States, FL, Marco Island
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Quote:
Originally Posted by rclab1 View Post
Picard10th

Cool Launches.....
Also, what happened on 3:35? Did it stall?

Can you take a picture of where the Actual COG is located?

Thanks....
No Stall, I lost orientation, The black is hard to see

Balanced on fingernail where the bottom fin meets fuse.
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Old May 02, 2013, 11:48 AM
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United States, FL, Marco Island
Joined Jan 2007
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RVjet ESC

Tip: the RVESC didn't work till I trimmed throttle down or raised throttle low end point.
I thought Motor or esc was bad at first cause other ESC/Motor worked.

Need ESC programing instructions to enable brake
See post #1

Be sure to calibrate throttle range or you might think it's defective.
Manual http://www.rangevideo.com/downloads/...ing_manual.pdf
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Old May 02, 2013, 05:58 PM
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United States, FL, Marco Island
Joined Jan 2007
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Much more impressed today! Big diff with brake on. Soft is enough for fold.
Stall is awesome! Just drops nose slightly and starts zooming along. Getting much more confidence to fly FPV with it. Hard to keep it down on landing, I know someone will want flaps for brakes but It just takes some practice to bleed off speed.
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Old May 02, 2013, 06:09 PM
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With ESC programming, just set two things?

1. Brake enabled ON- Soft
2. Throttle Limit, Throttle Range?

Also, with the Prop Stop, do we select the 6mm or 8mm?
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Old May 02, 2013, 07:20 PM
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United States, FL, Marco Island
Joined Jan 2007
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Yes that's all I did.

If you have a pair of scissors and a drill you can make one. I used a piece of Kytex I had around but almost any plastic will do, I think Vova used a credit card. Probably took it back from one of his harem

center is 8mm
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Old May 02, 2013, 07:47 PM
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United States, FL, Marco Island
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RV JET Take off and Landing

Hold leading edge of wing, fingers on top, I have extensions so I grab at the outward curve. With arm straight out to side, nose pointed vertical throttle up with other hand till jet has a slight positive push, around 3/4 throttle. Pull forward and let go! Point about a 35deg. angle don't try to whip or pull to hard or to steep. It will fly out and dip a little so be ready to pull up a bit. The hardest part is getting you hand back on th Tx properly to grab the elev. Practice the motion a few times to get use to getting your hand correct. and Don't over compensate!
You can put a little turn when you pull it but don't spin or run, not necessary.

For landings I think I like full elevator nose up so far
RV Jet take offs and landings (1 min 4 sec)
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Old May 03, 2013, 11:11 AM
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United States, AZ, Peoria
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Looking good!

I'd definitely add some colored bands to keep the orientation. Bright Yellow Monokote trim works wonders with a black background.

-bob
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Old May 03, 2013, 11:25 AM
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United States, FL, Palm Beach
Joined Jan 2011
841 Posts
Quote:
Originally Posted by picard10th View Post
Hold leading edge of wing, fingers on top, I have extensions so I grab at the outward curve. With arm straight out to side, nose pointed vertical throttle up with other hand till jet has a slight positive push, around 3/4 throttle. Pull forward and let go! Point about a 35deg. angle don't try to whip or pull to hard or to steep. It will fly out and dip a little so be ready to pull up a bit. The hardest part is getting you hand back on th Tx properly to grab the elev. Practice the motion a few times to get use to getting your hand correct. and Don't over compensate!
You can put a little turn when you pull it but don't spin or run, not necessary.

For landings I think I like full elevator nose up so far
http://youtu.be/RAXS3IbeZ2w
I do the same but I use my left hand to launch and my mouth to set the throttle, always keeping my right hand on the right stick. Works every time.
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