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HomeAircraftHelicopterHelicopter Main Discussion › Is Nitro Dying
09-02-2013 08:29 PM  5 years agoPost 381
McKrackin

rrProfessor

Lucasville,Ohio

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Wow...He was asking if there were no threads to show off your electric toys.

Like the one you started to showcase your wife's recent spending spree?

lol...I'm out on that one.Impossible to stay on topic with some folks.

I literally never use the word literally right.

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09-02-2013 08:48 PM  5 years agoPost 382
TMoore

rrMaster

Cookeville, TN

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In fairness to electrics, I know lots of pilots that can extract 8 minutes out of a 12S setup and the machines fly fine, in addition the 6S low rpm machines are a neat to fly and will fly for a long time. If you gear the electrics for a little more power than a nitro you can get the flight times.

TM

Delayed Response Operator Not Engaged
AMA SECTION 336 = Good
Drones = EVIL

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09-02-2013 09:07 PM  5 years agoPost 383
unclejane

rrElite Veteran

santa fe, NM, USA

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+1 to moore's comment. In fact, these power systems in 700's have gotten so out of control suped up, a lot of guys don't realize you can pull a flight pack and they'll still fly quite fine on just 1 6S batt. Minus the 1 to 1.5lbs of weight and the much more efficient low head speed, and you can fly for 10 minutes in a lot of cases.

I haven't flown my Whippy E on 12s more than probably 3 or 4 times, it's too much fun on just one 6S batt...

LS

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09-03-2013 05:15 AM  5 years agoPost 384
keiser BLADE

rrApprentice

WV USA

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yes nitro is dying its going right out my exhaust lol

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09-03-2013 05:30 AM  5 years agoPost 385
ICUR1-2

rrElite Veteran

Ottawa, Ontario

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I wouldn't mind getting 10 mins on my 500 dfc is there a way?
maybe using a 4S 3000

when I spill fuel on the ground I get a lil sad
when I spill lipo on the ground I get fire

spending time, paying attention

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09-03-2013 10:33 AM  5 years agoPost 386
Richardmid1

rrProfessor

Leeds, England

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I wouldn't mind getting 10 mins on my 500 dfc is there a way?
Hover it in normal mode! lol.

Or get a Gaui NX4 like I did and get 7 mins stick banging!

I did once get 7 mins hard 3D out of my Trex 500, I stuck a 6s 5000 on the front and added a bit more pitch to overcome the extra weight!

60% of the time, it works every time!

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09-03-2013 09:15 PM  5 years agoPost 387
Einzelganger

rrKey Veteran

Campbell, Texas

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A steak is a steak. Right?

Some want smoke and flames. = Charcoal
Some want just the flames.. = Propane
Some only want the heat.... = Electric

I like the smoke thank you.
Charcoal may be dying, but there is no substitute.
I hope nobody runs out of what they like.

Wayne

I love the smell of nitro in the morning.
RIP Roman

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09-04-2013 03:11 AM  5 years agoPost 388
eobie

rrNovice

Mount Holly, NJ

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I will say this.... I started flying 9 months ago and my first real heli was an Align 600e. I went on to buy a crap ton of top of the helis. Whiplash E, Synergy E7, Goblin 770, Goblin 500.... They are all fun. I love the electrics. After a while a realized that although electrics are cool, the low flight times were hindering my progression. I then went out and got a Fury 55 and an Avant nitro. Nowadays, the Fury 55 gets the most flight times.

I went from doing the same circuits on the electrics flight after flight. As soon as I started flying the nitros I started learning super fast. I went from flying figure 8's on electrics do doing elevator and aileron tic tocs, piro flips, funnels, etc within 3 months. The extra flight time really helps to progress.

Now I have a Whiplash gasser to build.

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09-04-2013 04:19 AM  5 years agoPost 389
McKrackin

rrProfessor

Lucasville,Ohio

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eobie...AWESOME fleet.

Not having to land right at the moment you start getting comfortable is always nice.

My 90 only flies 7:30 per tank....which is still longer than the average E heli making the same power or more.

My 50s on the other hand...they flew 10 minutes plus....
Flew two flights per tank a lot of times.

I am wanting a Mostro bad but I think I will wait for the 600N to release and then maybe the 500E.

My Aurora 90 is perfect for my 700 wants.

I literally never use the word literally right.

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09-04-2013 04:58 AM  5 years agoPost 390
shinysideUP

rrApprentice

USA NJ, NY

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8 Mins of awesome hard 3D for me on 91HZR with Hitori, all on 15%. Its just a lot more fun when you have more flight time when your turn comes up and also able to get in more tricks in the same flight.
You guys Think I will shorten the life of my engine significantly by running VP 30% or other 30% fuels?

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09-04-2013 05:09 AM  5 years agoPost 391
McKrackin

rrProfessor

Lucasville,Ohio

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You guys Think I will shorten the life of my engine significantly by running VP 30% or other 30% fuels?
It would be measured in minutes if any at all.

I literally never use the word literally right.

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09-04-2013 05:34 AM  5 years agoPost 392
Flys4Fun

rrApprentice

new mexico

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yea, but it seems the lower the voltage especially with big blades, you can very easily stress the heck out of the sytsem, even just flying around it takes a lot of power to just swing those big blades. it is much better imo to use a 12s setup with a motor that doesnt have big watts output and gear it accordingly to run the motor at max efficiency and get headspeed lower and consume less amps all while keeping temps for the batts and esc much lower and gaining more life out of everything.

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09-04-2013 08:19 PM  5 years agoPost 393
BobOD

rrElite Veteran

New York- USA

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Then you have to get reduced capacity packs. As unclejane was pointing out, the reduced weight in the battery is part of it. Also, it is interesting to be able to just install one pack or 2 on the same setup and explore the differences. It's kind of neat actually, like two different helis.

Team POP Secret

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09-04-2013 10:54 PM  5 years agoPost 394
unclejane

rrElite Veteran

santa fe, NM, USA

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yea, but it seems the lower the voltage especially with big blades, you can very easily stress the heck out of the sytsem, even just flying around it takes a lot of power to just swing those big blades. it is much better imo to use a 12s setup with a motor that doesnt have big watts output and gear it accordingly to run the motor at max efficiency and get headspeed lower and consume less amps all while keeping temps for the batts and esc much lower and gaining more life out of everything.
Believe it or not, the low headspeed of approx 1100 to 1200 rpm on a typical 700 is actually a lot more efficient. Running 80,000 rpm like most guys do on 12s actually wastes a lot of power; it allows really fast/hard maneuvering, but in normal FF or hovering, you throw away a lot of energy in parasitic drag on the main and tail blades thrashing those blades through the air at 4 times the speed of sound..... Not to mention heat in the motor, etc.

But at lower headspeeds the rotor blades fly at a higher angle of attack which is actually much better in terms of lift/drag. Same with the TR blades. Also, on 6S, the ESC runs completely wide open, which all but eliminates switching losses and other inefficiencies inside the ESC. It will hardly even get warm as will the motor.

Most amazing is my Whiplash E with just one flight pack in it and the Curtis V2 710's. You can see the blades flying at the higher AOA if you look at the disk head on and it sounds almost full-scale -ish. I can actually do about 11 minutes safely with one 5200mah 6S batt...

LS

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09-05-2013 01:57 AM  5 years agoPost 395
dodgeboy

rrApprentice

slidell, LA

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You guys Think I will shorten the life of my engine significantly by running VP 30% or other 30% fuels?
It would be measured in minutes if any at all.
why does a higher % shorten the life ?

Empire hobby, Gaui USA, OMG servos, Cyclone Blades

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09-05-2013 05:14 AM  5 years agoPost 396
BobOD

rrElite Veteran

New York- USA

My Posts: All  Forum  Topic

Only if he uses the extra power, then it could shorten the life some. If flown at the same power levels, it'll actually run cooler.
More Nitro = more available oxygen in the fuel. More liquid, less air so it'll run cooler. Tuning will be more forgiving too.

Team POP Secret

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09-05-2013 05:53 AM  5 years agoPost 397
ICUR1-2

rrElite Veteran

Ottawa, Ontario

My Posts: All  Forum  Topic

more liquid more oil it's all I run is 30% then I don't have to tune it as much to get power.
only 8$ dif for 15% for me

spending time, paying attention

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09-05-2013 06:02 AM  5 years agoPost 398
sharam

rrElite Veteran

Northern California - Fly at Morgan Hill Field

My Posts: All  Forum  Topic

I have used 30% on all my YS 91, OS 91, OS 105, Webra 90, Align 91 engines. I run them slightly on the rich side and fly the heck out of them. They have all lasted me through years and hundreds, if not thousands of flights. I rarely change glowplugs.

Run it a bit rich and you can literally run it as hard as you want. My classic test is to check the backplate immediately after a hard circuit. If still cool and you can keep you finger on it forever, then lean it a bit more. The test is the five second rule. If I can keep my finger on the backplate for 3-5 seconds before it hurts and I have to pull my finger off, then I am where I want to be in terms of needle settings.

I also follow the manufacturer's instructions re head shims!

Verba volant, scripta manet

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09-05-2013 12:34 PM  5 years agoPost 399
unclejane

rrElite Veteran

santa fe, NM, USA

My Posts: All  Forum  Topic

I posted it in another thread but the general rule of thumb is, the harder it has to work the shorter it's lifetime. Course, it's only a rule of thumb, since engine longevity has a number of different variables. Lower nitro content can tempt guys to become "tuners" and try to run the engine too lean to get as much power as possible out of it. In that case higher nitro can actually increase the lifetime because they finally start setting the mixture properly.

The other option is more displacement, tho that takes a while to pay for itself....

LS

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09-05-2013 01:57 PM  5 years agoPost 400
wrongler

rrProfessor

Brewerton, New York

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I am beginning to like nitro as much as electric, I was weaned on electric, now I have a few nitros that seem to be running fine and I'm getting a little more comfortable with them. They are not as powerful as electric, But they will teach me better collective management, you can't power thru mistakes with nitro like you can with electric.
I think I will probably always have both.

Bill Whittaker

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HomeAircraftHelicopterHelicopter Main Discussion › Is Nitro Dying
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