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700 Class Nitro Helicopters 700 Class Nitro Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 06-26-2009, 08:48 PM   #1
ping
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Default average flight time and tanks per gallon?

Just wondering what your guys experience has been with flight times and how many tanks of fuel you can get out of a gallon.

I haven't run a nitro anything in 12 some years, I'm thinking of giving a nitro Trex 700 a shot.
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Old 06-26-2009, 10:12 PM   #2
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About 8 minutes with around 0.5 inch left in the bottom after each flight. You can fill about 6 empty tanks with a gallon. With the fuel left in the tank, I get around 7 flights per gallon.
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Old 06-26-2009, 10:26 PM   #3
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Total time per gallon = 52 minutes
At $26 per gallon = .50 cents per minute!

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Old 06-27-2009, 01:10 AM   #4
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Where do you get fuel at 26 dollars a gallon?
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Old 06-27-2009, 08:35 AM   #5
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Quote:
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Where do you get fuel at 26 dollars a gallon?
I just picked up a case of coolpower 30 at a funfly from hobbyhut for $90.

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Old 06-27-2009, 09:01 AM   #6
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Quote:
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Where do you get fuel at 26 dollars a gallon?
At the LHS. He gives me a special price!!!

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Old 06-27-2009, 05:26 PM   #7
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Next stupid noobie question, 15 or 30 percent fuel? I'm intrigued by this orange "slime" and may soon own a nitro.
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Old 06-27-2009, 06:44 PM   #8
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30% here around 8 minute dont wanna know how many tanks per gallon lol
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Old 06-28-2009, 04:04 AM   #9
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Next stupid noobie question, 15 or 30 percent fuel? I'm intrigued by this orange "slime" and may soon own a nitro.
I have just been running 15% on mine due to the LHS were out of 30%. After some minor re-tuning, i am positively surprised how little difference there is, but the 15% is more prone to cause bogging. You need to watch you`re stick movements
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Old 06-30-2009, 01:28 AM   #10
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Last time on the field I finally used a timer to check flight times. For normal forward flight (loops, stall turns, push overs, cuban eights etc) 1850 on the head gives plenty of lift and ample power as the YS engine seems to have a lot of torque. I got 10 minutes per tank. Engine MAX temperatures were 48 from the bottom and 80 from the head (27 degrees out).

I used to have a 600N but that heli had to have well over 2000 rpm on the head to feel powerful enough. With that one I got a bit over 8 minutes per tank because the engine was running high rpm. Difference in total flight time is only 4-8 minutes per gallon in my current flight.

But if you want to fly harder with a .90...
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Old 06-30-2009, 10:10 PM   #11
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i get 7 minutes to a tank. I like to leave a little extra reserve incase i have a really good flight or i pull a no brainer and do a dozen tic tocs on the last minute of fuel.
I don't care what anybody says even a fuel magnet will go dry if you do that,
about 7 to 8 refills per gallon, It's well worth the 20 to 30 percent in added fuel cost over a 600 nitro.since i got my pair of t700n's my 2 600n's hardley get any flying.
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Old 07-01-2009, 02:18 PM   #12
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hehe buy bulk! 20 bucks a gallon for CY 30.

last huge buy we did earlier this year 15% was 17 dollars a gallon and 30% was 20.

this was over a 40 case order though..
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Old 07-01-2009, 02:59 PM   #13
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So can you run 15 then switch to 30?
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Old 07-01-2009, 03:07 PM   #14
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sure.. you just got to retune the engine.
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Old 07-01-2009, 09:37 PM   #15
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i got in on the cy 30 % at taledo $18.00 a gallon,makes flying a 90 very reasonable.
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Old 07-02-2009, 09:04 AM   #16
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I had only 6 minutes at 1900rpm (YS91SR) without header tank landed with 1/8 of fuel left in tank.
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Old 07-02-2009, 09:01 PM   #17
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Quote:
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I had only 6 minutes at 1900rpm (YS91SR) without header tank landed with 1/8 of fuel left in tank.
must be a heck of a flyer or running it really rich.I runa ys90sr at 1960 7 minutes and a 1/4 tank left lots of full(14degrees)pitch flying.and i thought i was running mine rich.Also no header tank.
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700 Class Nitro Helicopters 700 Class Nitro Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.

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