Horizon Hobby - Viper 70mm Jet - Post Maiden Thoughts & Adjustments

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#rc #airplane #viper

[@zeroxzero8348]

Brian, I just got mine a few days ago as well. I moved the aileron's to the furthest outside hole and solved the aileron issue. I liked it on the outside hole because i was then able to reduce my rates a bit in the TX for better control of things. I noticed the flare issue as well you could slow it down great but nose seemed to not want to come up for a nice flare. Also I had a servo strip out on me for my second flight the exterior gear is metal but the inner gear's are all plastic. I rebuilt the servo with an old one I had laying around to fix the aileron servo. Plane flies amazing but servo's are pretty crap. Also the recommended throws in the manual to me are a little to conservative and need to be extended out. Going to be replacing the flap servo's next as they buzz really badly. The only other thing I hated was getting the wing on and everything through that small hole was difficult for me. I had to put extension's on each wire push it through then remove extension.

[@BrianPhillipsRC]

I agree with the issue about all that wire through a hole the size of 2-3 servo ends...why is wring always a complete after though??? Did they think we were just gonna hang it on the wall for looks??!?! LOL I really want to flare more on landings, so I can STOL the plane :)

[@michaelmcmenzie6928]

Hold up Brian don't bend that while it's on the retract. To such Cruz holds the strut in loosen them open the retrack pulled strut out then bend it

[@BrianPhillipsRC]

Thanks for the pointer!

[@keithshillbillyrcn849]

Hello, it's E&G,lol nice simple adjustments, access relief, ball links, and lots of cool plane. Ready for the remadien and flight that is gonna be awesome. I've got lots of wind and rain for couple days???so we be grounded in JC,TN. That just makes for shop time if I can get honey do' s worked out. LOL! THANKS. Have a blessed day.

[@BrianPhillipsRC]

Thanks guys! We're staying in today watching football while it's CRAZY windy here. Maybe I should be at the slope again?!!?

[@pedrofdmp]

Fiber tape inside the walls works great for reinforcement. Do it on both sides of the foam and it becomes nearly indestructible.

[@BrianPhillipsRC]

true, and more slick as you force lipos in and out too!

[@azpholt]

some 5 min epoxy on areas boom wont break at all

[@scottp3287]

Tool box drawer liner works great for that. Thinner and grips excellent. Cheap. Been using it for years.

[@BrianPhillipsRC]

Great idea! Very light also!

[@davemarshallmusic]

Seems like I’m always late to comment, but it may help someone. If you need to change the position of the control rod on the servo horn, it’s easier and faster (in my opinion) to pop the ball link off and reposition the rod than it is to remove the servo horn from the servo. Just my opinion. Then you can also adjust the linkage if you need to for mechanically neutral control surfaces all without removing any screws.

[@BrianPhillipsRC]

yes, thanks Dave

[@slugosrc1256]

I just bought a eflite f16 falcon can't wait to fly it still setting it up!

[@BrianPhillipsRC]

I'm in the process of picking between the 70mm F16, and the Carbon Z Cub SS 2.1m, for my next plane...not sure what I'm gonna do, as I want both, but think the Carbon Z Cub SS 2.1m would be more fun in more conditions???

[@ManAndMachine23]

60C Heavy duty battery is Overkill in this plane boss,The ESC is a 60 Amp unit, a 25C lightweight Roaring Top 4000 Fits perfect and runs for over 5mins. Most guys think the higher the C rating the faster the plane,Neagtive,your just carrying around dead weight, in this case...

[@BrianPhillipsRC]

It's a hobbyking lipo...so, 60C is just a "guess" - LOL

[@flightlieutenant6902]

Thanks Brian . Great show mate and very informative . Cheers from Australia 😁🇦🇺

[@BrianPhillipsRC]

Thanks!!!

[@boneswamped]

Perhaps the aileron control link hit the edge of the basketball court after the main gear dropped off the edge. There’s no way you damaged that in flight.

[@BrianPhillipsRC]

I wonder if it's just discolored??? But that could have happened too. She seems to be holding up perfectly so far :)

[@dougrymer4490]

My viper has poor front steering. How can I improve that?

[@BrianPhillipsRC]

Get a better set of retracts ;( - I know...that's a sucky answer, but it's true. The FMS Futura has AWESOME retracts and similar size. Might take a look at that (it's in my videos too...then you can follow the link to see the parts available)

[@elijah7924]

Just got my Viper.......the back landing gears froze up......how do I unfreeze them.

[@BrianPhillipsRC]

Sometimes you can press them as though you're trying to push them in past fully retracted. Then get them to come out, and then you can straighten them. What USUALLY happens, is the gear get bent on landing, and they fail to hit "CLOSED" end stop sensor, therefore they "time out". If you can just mechanically get them to push all the way in, they'll many times just spring to life.

[@elijah7924]

Thanks brian... I had not even flown it yet and they got stuck...I ll try your advice...thanks

[@DonDegidio]

Hi Brian, If the flap linkage is the same length as the aileron, swap them on the right side. The aileron is more important than the flaps..

[@BrianPhillipsRC]

I'll have to disagree with you on this one :) If you've ever had a flap on ONE side fail, you'll know what I'm talking about.... The aileron is a redundant control surface, so if you lose one side, you may not even know it happened, unless you notice a sluggishly roll rate, ironically, I've also had this happen to me, ON THE SAME PLANE, now that I think of it!!! When you have one flap fail UP or DOWN, you will create a nasty YAW and ROLL from the "other one" that's not behaving. It's kinda dicey to land with a half operating flap system. I believe this is why the ailerons, flaps, and spoilers on large aircraft are split up between two or more hydraulic systems in sections that alternate on BOTH sides. This helps to prevent a complete failure. Hope this makes sense!

[@DonDegidio]

Hi Brian, As someone who lost control of an aileron, it was not pleasant and resulted in a crash. It was the slowing speed coming in for a landing is what did it in for the plane. Better waiting for a new link, or salvage one from another plane for now.

[@BrianPhillipsRC]

Oh no!!! I'm sorry to hear that happened! The plane that it happened to be on was my P-51D Blondie 1.2m...both aileron and flap, not at the same flight.

[@DonDegidio]

Hi Brian, That was 30 or more years ago. What happened, as the plane slowed for landing into a 10 or so mph wind the aileron started flapping causing right and left rolling and I couldn't compensate fast enough. Now if a control linkage is suspect, I replace it before next flight.

[@BrianPhillipsRC]

That's a lesson learned a long time ago!

[@toddedson5782]

Nice video Brian thank you

[@BrianPhillipsRC]

Thanks Todd!

[@ChipMitchell]

Just purchased my new Viper.....I am soooooo fired up

[@BrianPhillipsRC]

Chip - GOOD LUCK!!!

[@jensappel2302]

Brian, if one would be looking to get a first jet, and one thinks the habu is super ugly, would the viper be the way to go? Or is the f-16 just as good, since it also has safe?

[@BrianPhillipsRC]

The Viper is a better choice with the SAFE And FLAPS, but the F-16 has FAR SUPERIOR retracts... and I totally get your issue with the Habu... ;) Viper 1.1m bit.ly/2Osevfw F-16 70mm bit.ly/3fxi1Bi Habu 70mm bit.ly/3fRaLj7 ...at the end of the day, all three good choices ;)

[@jensappel2302]

@@BrianPhillipsRC Thanks man. :) Yea, I need the scale looks or I dont find the plane appealing at all. I ended up getting both the Viper and the F-16. Everyone wins. ;)

[@jensappel2302]

@@BrianPhillipsRC I just had my first flight with the Viper today, it went really well. First landing with full flaps and cut power was a bit jumpy, 2nd landing with full flaps and like 5-10% power was smooth as butter. This thing is perfect as a beginner edf! This was my 10th flight with an rc plane in real life and I have about 24 hours in RF 9.5. Just shows that the sim really makes a big difference. Thanks for your videos, I learn a lot.

[@Sayder.k62]

Put a mixer on the ailerone

[@BrianPhillipsRC]

What do you want?

[@Sayder.k62]

@@BrianPhillipsRC flaps+ailerone for more flaps/ailarone sorry for my Bad englisch i am a german...

[@crofty_flyer]

Hi Brian, You mentioned that you changed your flap settings from initial set up, what did you change them to? Did you also adjust anything else?

[@BrianPhillipsRC]

MORE deflection, if I recall.

[@toby1444]

Hi Brian, I have been watching your Viper build and adjustments. I had concerns in regard to how close the receiver antenna is to the battery. In this model Viper do you relocate the main antenna towards the tail? Or have you left the receiver antenna as per the original build? I was worried about signal loss being so close to the battery. What are your thoughts?

[@BrianPhillipsRC]

I haven't had any issues, but having a lipo on TOP of the antenna is generally preferable to having the antenna on the TOP of the battery....since we fly from the ground ;) This plane has one issue...battery bay is too small for a big pack. It's a LOT of work to get it all the way back, and ironically enough, the F-16 is similar - go figure ;) LOL

[@toby1444]

@@BrianPhillipsRC Thanks Brian I have installed the antenna on my BNF under the timber tray and will range test. Thank you for the advice, it makes perfect sense.

[@seanmolloy9422]

looking forward to the re-flight video

[@BrianPhillipsRC]

Me too!!! Need some calm weather for 10 minutes, then I can see if the trim is in the ballpark!

[@seanmolloy9422]

i shouldnt comment about weather, i live in san diego ;) got up early today to fly my "new" yard sale junk plane but the wind was ripping at 700am. 20+knts gusty and clocking about.

[@BrianPhillipsRC]

crazy!

[@seanmolloy9422]

bring a few friends, do a flightline FOD walk, find screw, buy lotto ticket. you sir have too much fun

[@BrianPhillipsRC]

LOL - FOD walk, sounds good! Reminds me of the lights we just replaced, flanking our garage doors. My wife and I got them and wanted them installed, IN THE DARK, so my son held the light and I took responsibility for dropping the "oil rubbed bronze" 7mm acorn nut!!! we found it...

[@seanmolloy9422]

...but did you find the special nut?

[@BrianPhillipsRC]

yes

[@davidjones-gd7gq]

I just got mine too and I have been flying it but it takes a ton of room for takeoff and Landing and I ended up sliding into a cornfield. the other thing I didn't like about it was so many weeks spots in the winning it absolutely just exploded when it hit the corn. I like the way it flies but it will take time to put it back together buyer beware or should I say flyer beware

[@BrianPhillipsRC]

There is a weak spot on the inboard side of the wing root, where the gear close into...mine cracked already after my ACE landing on maiden flight 1 of 2 (LOL)

[@adventures3699]

What settings did you use for flaps/Elevator mixing??

[@BrianPhillipsRC]

I don't use flap/elevator mix. Did you watch the Radio Setup video? Flap to elevator correction I've got set... Takeoff at 2% Landing at 4%

[@jetrg12]

Add an afterburner for the cool factor and to help with the CG :-)

[@BrianPhillipsRC]

That would be pretty cool!

[@hurschulumleloo2162]

Hey Brian I have a question: How long could a Cirrus BNF from E-Flite fly full speed with a 2200mah battery? I bought it yesterday and I’m a bit scared that the plane can Crash when im too long in the air... Thanks for your answer and many regards :) Nice vid. by the way

[@DivisionRc]

Hürschülüm Lelöö hey im not brian but your not going to want to fly full speed 100% of the time with that. 50-70% throttle is good and for first flight do a 4 min timer. Check battery and increase flight time by whats left in the battery ( never go below 20% ) and the style of flying you do. Good luck!

[@BrianPhillipsRC]

you can fly about 5 minutes or a little more. You need to use a timer and a voltage alarm, then you can have peace of mine.. Voltage Alarm 1-8S Lipo - amzn.to/2G6jqxy

[@hurschulumleloo2162]

+DivisionRc thanks :)

[@hurschulumleloo2162]

+Brian Phillips Thanks Brian, i bought this one :)

[@azpholt]

I use 3300 mah in mine get around 8 to 10 min

[@andreas3905]

Hi Brian, I like you videos... really awesome! : - ) Is a xt60 plug enough? Or would be a xt90 better? What about with t-plug? T-/xt60 disharge plugs are for 60amps!? Please tell me where I can get your great pillow to transport the viper! : -) Thanks a lot!!!

[@BrianPhillipsRC]

Thanks Andreas! I think you might be pushing it a little bit with an XT60...and XT90 would be better. I can't speak to "T" Plugs in great detail, as I haven't spent a lot of time with them. Here's what you might use as a rule of thumb...look at the ESC to help you decide what type of connector to consider. This is a 70 amp ESC, so you might exceed this mythical 60 amp rating on the XT60...I say mythical, as I know that these XT60's will generally handle a LOT more than 60 amps, but for how long, and under what conditions would the plastic start to melt is something I can't honestly say, so like you, I'll err on the safe side.

[@joshm4999]

ahhhhh I missed a lot! Sorry, it turns out when you’re having fun with your own RC planes, you forget to watch one of your favorite RC KZbinrs! Are you planning on making a gear door mod just because?

[@BrianPhillipsRC]

Possibly, but not sure yet. Since I don't see this as a super scale plane, I probably won't but the mains are screaming for something nice :)

[@joshm4999]

Brian Phillips exactly what I was thinking!

[@boofnoof1602]

You should experiment (to a point) with the COG, a little tail heavy will have a better elevator control and in some cases will fly a lot nicer, with my flying style i like a tail heavy plane and I like nice a responsive elevator. But its looking good so far. Is there no model fields where you live? Would make it a lot easier to polish them landing ;)

[@BrianPhillipsRC]

I have moved the CG back (here in this video), and the controls on the elevator and ailerons, so I hope that'll allow me to flare it like the apprentice (kinda a joke, but I do want to flare this beauty!!!)

[@boofnoof1602]

Awesome should go good then

[@BrianPhillipsRC]

Well, if I were a more patient person, that MIGHT be true...but I took her back out today in 30 mph gusty wind - well, you'll see... ...I might need some more "polishing"...extreme "Polishing"!!! - LOL!

[@boofnoof1602]

Oh no, that sucks

[@BrianPhillipsRC]

maybe....;)

[@jkflorida]

This plane floats in like nothing! There's no need for brakes. I think you're landing way too hot!

[@BrianPhillipsRC]

I agree, I was landing too hot...I was out of elevator, so no flare to speak of (in fact, I was still nose down maybe 3-5 degrees - Yikes!). I think I'll have better landings now that I can pull the nose up to level, or flare as needed.

[@mikewhitaker2306]

Definitely do not need brakes will fly slow enough to stall

[@BrianPhillipsRC]

Stalling is the beginning of "not flying"...not sure what you mean