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HomeAircraftHelicopterMiniature Aircraft Whiplash & Fury 55 › Breaking-in my Whiplash
03-09-2013 03:12 PM  5 years agoPost 1
rcnut

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Rockford, Illinois

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Sunday was a great day to go flying...considering it was 31 degrees with snow on the ground! The sun was out in full force...meaning not much cloud action. As long as Bob and I were standing in the sun light, and not the shade, it was rather nice...bearable.

First flight I decided to try out my Compass 3D+. It took a couple of minutes to get the motor to run in the cold, it is extremely cold blooded. However, I managed to get it warmed up enough to obtain rpm on the rotor head. My 3D+ lifted off the ground as if it was summer time. Went into idle up 1 and let it rip up the sky, boy was that ever fun!

It’s been a long time getting out to fly, my skills were a bit rusty, but after a few minutes, everything started coming back. Bob and I decided to take a break and warm up a bit before trying out the Whiplash. I filled the tank before Bob arrived, so everything was ready. I turned on the radio, and then the heli, primed the bulb on the carb, and proceeded to start the motor with my electric starter I use for my nitro helis.

However, my starter wouldn't even turn the motor over...Hhmm. Ok, I'll use the pull start. I could feel the motor was somewhat hard to turn over due to no fuel in the motor...yet. As the fuel entered, I could feel the pull starter getting easier to pull. So I decided to use the electric starter, but it still wouldn't turn it over. Ok...no problem; I'll just start my heli with the pull start!

1...2...3...4 pulls, then it started! The motor idled nicely and was ready to go, unlike most nitro motors. Throttled up slowly and as the head speed started spooling up, the tail servo was reversed...oh! I thought I checked everything, missed that! No problem throttled down and reversed the rudder servo in the radio. This time my Whiplash was ready for its maiden flight. I advanced the throttle and it lifted off the ground! Nice and smooth, no trim was needed.

The tail seemed to be a bit twitchy, so I lowered the gyro gain, but only to realize it was from the motor. During the break-in process, the instructions call for the motor to be rich. So that is causing the tail twitching /waging. It will go away as it is breaking in.

I turned the heli to the right and pushed the cyclic stick forward and away it went. Nice and smooth, nothing too fast or too much collective. I flew my Whiplash several times around the field, and then brought it in for a landing. Two minutes out flying around, and then one minute sitting on the ground idling. Did this routine a couple of times, then checked my fuel tank, just enough for a couple of minutes more.

Well I should have stayed on the ground, right at the 2 minute mark and right in the middle of a turn, the motor decided it was out of gas! The motor stop very suddenly, so I finished the turn quickly and started an auto. I was out a ways over the snow, and didn't want to land in it! So I "milked" the auto for about 70 feet at half the needed head speed...I would have to guess I'm around 1500 rpm's! Not quite enough, and I was right. I came in for a medium bounce and a roll over with a small slide to a stop!

Broke two servo horns, slightly bent one of the blade linkages, scratched my new muffler and canopy, and scratched some of the landing gear. All and all, it was a good flight. I can't wait to get back out and try it again!Thursday the forecast was 32 degrees and calm winds! Friday’s forecast 37 degrees and calm. Dang, looks like I will be flying both days!

Thursday I headed out to our flying field and I was the only one there…perfect! Filled the tank and started the motor by the pull start. Up in a hover, I checked the tracking, trims, head speed, tail response, and the cyclic. Everything seem to be ok, so nosed my heli forward and away it went! Put in 3 more flights before the sun went down too far.

During the second flight the motor started to run better…in flight! I didn’t want the RPM to get too high, so I dropped the throttle curve a bit, and it was back to normal. On the last flight, however, the motor started to come alive again (higher head speed), but I was close to the end of the flight, so I left it alone.

Friday I richened both needles a 1/16 turn and increased the throttle curve a bit. Following Raja's break-in procedure (somewhat)...I fly for ~2 minutes, land and idle for 1 minute, then back onto the air for 2 minutes. The first 2 flights were only 7-8 minutes long, burned through that much fuel. Flight #3 the motor changed in mid flight to a higher RPM (due to the motor breaking in), and the tail wags stopped along with some head wobble...due to a low head speed. I lowered the throttle curve and all was well until the end of the fourth flight, it sped back up, but not much. Flights are now lasting 10+ minutes!

I liked the higher RPM, but after that flight, #4, I changed the needle settings to a bit richer. Flights 5-7 was a lot better. The motor was back to its rich settings and wasn't breaking into a higher speed. I had to increase the throttle curve to obtain a decent head speed to fly. By the 7th flight, my Whiplash was trucken across the sky like my other helis. I had to resist the urge to flip, loop, roll my heli! And each flight, now, I'm flying longer in-between the 1 minute cool down.

I'm thinking that after the next 3 flights, a total of 10 flights...I might try switching into idle 1 and try some inverted flying! I won’t be able to get out this weekend due to rain both days, so I’ll perform a maintenance check. Go through the linkages, screws & bolts, servos, wiring, motor, etc. Monday through Wednesday is forecasted to be warmer, but a bit windy…looks as if I’ll be getting more flights in! And with daylight savings this weekend, I get an extra hour to fly!

I also ordered some fuel fragrance, bubble gum, watermelon, and grape. I did this many years ago with my gas plankers, it smells great!

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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03-12-2013 01:49 AM  5 years agoPost 2
fla heli boy

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cape coral, florida

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ah just the guy....does that fragrance make a difference when it's sitting in your shop or only when it's running????
I'm finishing up a gas plank and about to build a Radikal and they have to both stay in my office/workshop and I really don't wanna stink up the house.
Where did you get that stuff from???

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03-12-2013 07:26 PM  5 years agoPost 3
rcnut

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Rockford, Illinois

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Fuel fragrance
You can buy this stuff from several places...do a google search for more places that carries it.

I bought mine from Motor Sport Racing fuels http://www.motorsportsracingfuels.n...p?categoryID=64
(wanted to try someone different) and
Aero Graphix...http://www.aerographix.biz/fuel_fragrances.htm

Motor Sport is $10.99 per 4oz.
Aero Graphix is $13.00 per 4oz.
does that fragrance make a difference when it's sitting in your shop or only when it's running????
Yes... More so when the motor is running. Its really strong when the motor is running. The "fun" problem we have, if the wind is blowing right and you perform a fly-by...you will make the crowd hungry for let's say watermellon, or bubble gum!

When you mix the fuel fragrance in your gas can/jug...you can smell the gas only somewhat. I use a stronger mix, which is ok, like 2-3 oz per gallon, then you lose almost all of the gas smell. HOWEVER!!!! You with have a stronger effect on the crowd! They will want to eat your air plane! LoL... Just kidding...but it does make you want to eat what ever the flavor is! It smells that good when flying.

I mixed what I had left (about 3-4 years old now) in my 2 gallon jug, so I can't wait to try it out in my heli...never done that, just in my planes. It will get rid of the heavy gas smell so I can have my heli in the house!

To mix a fresh batch...put your oil and the fuel fragrance flavor in the gas can first, then add your gas. This will throughly mix with the gas versus shaking your gas can by hand.

It is something you will need to play with! If you buy some...don't tell anyone. Fly around and see if anyone notices!

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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03-12-2013 08:23 PM  5 years agoPost 4
fastflyer20

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N. Tonawanda, NY

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Who is responsible for the damage if someone tries to eat your heli?

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03-12-2013 08:46 PM  5 years agoPost 5
rcnut

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Rockford, Illinois

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LoL Ah...the pilot?

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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03-12-2013 10:21 PM  5 years agoPost 6
fla heli boy

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cape coral, florida

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cool!!! That's just what I was hoping....
I love the smell of fuel, but my workshop is in the same 12x15 room as my office space and I sit in here 12-18 hours a day and I think it would get old smelling gas all the time.

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03-12-2013 10:22 PM  5 years agoPost 7
JKos

rrProfessor

Redondo Beach, CA

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Something to think about though... Just because the fuel fragrance covers the smell of the gas doesn't mean you aren't still breathing the fumes from the gas.

- John

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03-12-2013 11:05 PM  5 years agoPost 8
fla heli boy

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cape coral, florida

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true. But I would be sure to fully drain the entire system and let it "rest" outside before I breathe it in. The fragrance is just to handle that last little whiff.....hopefully.
If it doesn't work, I'll have to resort to Coleman.

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03-14-2013 04:38 PM  5 years agoPost 9
rcnut

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Rockford, Illinois

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true. But I would be sure to fully drain the entire system and let it "rest" outside before I breathe it in. The fragrance is just to handle that last little whiff.....hopefully...
That's the goal! And it does just that!
Something to think about though... Just because the fuel fragrance covers the smell of the gas doesn't mean you aren't still breathing the fumes from the gas...
Very true!

Yesterday it was 32 degrees out with winds at 10-20 mph, sunny with a few clouds.

Another 3 flights for a total of 10 flights. I added the last of bubble gum fragrance I had to the gas I just mixed for my heli. The first flight I just flew around like normal with a quarter tank of normal gas and filled the rest of the tank with bubble gum flavored gas. I didn't notice any smell difference. But on the second flight of the day, as I carried my heli to the heli pad...I could smell the buble gum! The last flight (#10) It was very noticeable! As I carried my heli to the landing pad, I could really smell the bubble gum!

The wind was behind me, so I couldn't benefit from the fly-by's...it will have to wait for another day.

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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03-23-2013 07:00 PM  5 years agoPost 10
rcnut

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Rockford, Illinois

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Friday…35 degrees, winds South-southwest at 4 mph…Sunny!

The weather is slowly getting better! And I'm having a hard time deciding to stay home and get work done or fly my Whiplash...and freeze. Fly and Freeze it is! I decided to flip out the last 2-3 tanks worth of ashless fuel mix I had left...well transfered it to my other gas can for my weed wacker.

I found Coleman fuel at Farm & Fleet and Walmart. Walmart is a $1.01 cheape! Go figure. I bought a gallon and mixed some Honda HP2 synthetic pre-mix oil. I kept the oil ratio at 32:1, per a phone conversation with Toxic Al. I turned the high needle in a bit after the first flights on the new fuel / oil mix…now I have a whole new heli! The motor is running faster, I'm guessing it is in the 1900 rpm range. It is very responsive now. Progressive climb-outs are smoother; however the motor still loads up some…still need to finish tuning the high needle. Big air loops (same as the climb outs) will load the motor some, but not bad to where I have to back off.

Transitions (throttle) are very smooth, no hesitation, coughs, spit/sputters. During throttle up, I see a lot of torque coming on as the rotor head plays catch-up…this only lasts for a few seconds. Reminds me of my Compass 6HV electric during spool up, only the spool up is softer electronically.

I tried a couple of collective pitch pumps…the motor didn’t even notice it! This is just too cool. I might get out today after work. I’ll put up several more flights with 1 or 2 high needle adjustments (small). Flight times are getting longer, slowly. I started at 7 minutes, and now 10 minutes and 40 seconds.

The weatherman is teasing us with 50'ish degrees for next weekend...time to burn some fuel!

Overall I'm enjoying my Whiplash Gasser. I have some Beast X tuning to do along with lots of flights...LoL. I might try a tuned pipe...the Quick Draw pipe. I can get an extra 2 HP with just the pipe. That would give me 4-1/2 HP total! Not to shabby for a gas powered heli.

Whiplash = 4
Total = 22

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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03-24-2013 05:25 PM  5 years agoPost 11
rcnut

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Rockford, Illinois

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Saturday...went out again. Temps 41 (the first offical 40+ degree day) degrees, winds light and variable.

Did my normal routine...warmed up on the first flight, second flight I let it rip! Third flight I started in on my practice routine.

On the third flight, I turned the high needle in a blades width and that motor is just "smoke'n". It is making even more power! I went into my throttle curves and brought the normal down, it was too high...maybe 1900+ I'm guessing...(normal curve 0,23,38,50,100).

Idle 1 was set for 1650 RPM in GOV mode, it is now at 100,47,38,47,100.

I had inititially set idle 2 for 1950 RPM in GOV mode... now it is 100,45,35,45,100...I like that setting better. A slower head speed with enough power. I really need to tack my head to see where I'm at. Bob was with me and I had forgotten my tach...I put it in my radio case so I don't forget!

My flight times have improved. I was getting 10 minutes on a full tank...now I'm getting 12 minutes!

It will be awhile before I can get out again (Thursday'ish), weather here is crappy (snow, rain, snow & rain mixed, high winds & cold...) the next few days, plus I have some house and cooking chores to do. Also, I will pull my spark plug and look at its condition.

I am falling in love with this heli, besides the normal tweaks needed to get a heli just right, I may not bother with any of my other heli's the summer!

Whiplash = 3
Total = 25
Plugs = 1
__________________
"I love the smell of Nitro in the morning!"

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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03-24-2013 05:44 PM  5 years agoPost 12
fla heli boy

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cape coral, florida

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haha - change out NITRO to GAS in your tagline now...

BTW - why the change to Coleman???

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03-24-2013 07:57 PM  5 years agoPost 13
rcnut

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Rockford, Illinois

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"I love the smell of Nitro in the morning!"
LoL!! Ha, Ha, Ha! Didn't see that one!

I wanted to see what the difference was...smell.
"I love the smell of Nitro in the morning!"
My gas smells like bubble gum!

Just thought of something else...electrics, I have them too!

"I love the smell of Nitro in the morning!"
"I love the smell of Gas/Bubble Gum in the morning!"
"I love the smell of Electrons in the morning!"

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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03-24-2013 09:13 PM  5 years agoPost 14
fla heli boy

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cape coral, florida

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roasting engine bearings or smoking lipos???

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03-29-2013 04:01 PM  5 years agoPost 15
rcnut

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Rockford, Illinois

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roasting engine bearings or smoking lipos???
ROFLMBO!!

Yea...there's nothing like seeing you favorite heli flying in the air, then turning into an instant fireball!

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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03-29-2013 04:03 PM  5 years agoPost 16
rcnut

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Rockford, Illinois

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Heli-Log 3:29:2013
Thursday, 48 degrees, winds light and variable, sunny…not a cloud in the sky!

Yesterday after work, I put in another 4 flights on my Whiplash. I leaned the high needle just a little and increased the throttle curve some. Now my Whiplash is rock’n! Most of the maneuvers I did didn’t bother the motor much except for full throttle climbs and side tic toc’s. I have a slight problem with collective management on side tic toc’s, and I need to look into an over-rev issue. Possibly the Stator Gator is plugged in backwards. When performing rainbows, the motor over-revs.

At the end of the second flight, I noticed one of the 4mm screws from the boom support at the horizontal clamp was missing! Had a spare and fixed that; also checked the other screw…it was loose as well? One the third flight, I noticed I have a fuel leak somewhere around the fuel tank. I have fresh fuel splashed all over the inside of my canopy and parts of the frame. Also, while I was practicing my inverted segment, the motor died, or appeared to have died. I quickly flipped to right side up and proceeded with an emergency auto. Well I made it through the flip and dropped about 5-10 feet, and then the motor came back to life!!! I landed and checked the fuel tank and there was still better than a half a tank of fuel…Ok, so I finished the rest of the flight mainly right side up. During the tank assembly, I did the 3 loops with the fuel tubing on the vent line…maybe it is over flowing from there. I’ll try changing it to a longer line and plumb it towards the bottom of my heli with 3-4 bigger loops. The loops I have could be too tight/small in diameter. As an afterthought…maybe the motor ran out of fuel due to a vacuum build up in the tank???

I had enough fuel in my gas container for one more flight…so up I went! This last gallon of fuel was mixed 32:1 with synthetic oil, a request from Toxic Al. The next mix of fuel will be at 40:1. Not sure if I want to switch back to regular gas or stay with the Coleman fuel. It is a bit pricy! At $10.00 per gallon versus $3.65 for gas plus the heavy smell! I like the low odor from Coleman’…and I added some fuel fragrance to the mix. Using Coleman fuel, you don’t need much fragrance compared to gasoline, and with the fuel fragrance added to the fuel, you can tell when you have it on you!

I am truly loving this heli! Now I’m looking at my Trex 700N, the one with a blown nitro motor…possibly converting it to gas with the Heli Bug conversion and another TRM 270TT motor, and installing a Best X controller. Currently I have the Total-G controller in it; it would be nice to be able to adjust how it feels like the Beast X.

I also tested out my new GoPro3 Black I bought from Heliproz!. I mounted it to a baseball hat (I hope Mikado doesn't get upset!). I picked a hat I didn't mind ruining...LoL. The videos turned out ok, wide view and too high resolution. I will try recording in 720p @24fps (and 480p @24-48fps) narrow view. Maybe this will keep the file size down some and still keep the video integrity. I had the GoPro set to 1080p @48fps medium view. A 7 minute video was 1.xx gigs!

Saturday’s forecast, here in Illinois, “A mix of could and sun in the morning followed by cloudy skies during the afternoon (71% clouds). High 57 degrees, winds South at 20-30 mph, with possible gusting...so I might stay home and cook Mr. Turkey, look into my fuel leak, then work on uploading some videos on YouTube. Also want to transfer my maiden flight from my camcorder…and upload a few pic’s of my Whiplash.

Whiplash = 4
Total = 29
Plugs = 1

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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04-01-2013 03:21 PM  5 years agoPost 17
rcnut

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Rockford, Illinois

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My Whiplash disaster...
Saturday morning...57 degrees, sunny, light and variable.

Flight #29, Friday, I finished the gallon of synthetic mix at 32:1...per Toxic Al. Started a new gallon mixed at 40:1 with some bubble gum fragrance. I was somewhat surprised the motor ran rather well with a thinner oil mix. The flight went really well and relaxed some and just had fun.

Second flight of the morning, ~4 minutes into the flight, my Whiplash acted a bit funny! It displayed a total body wobble? I've seen this once before with my Rave 90 ENV. The battery decided to die in flight! I had to watch my Rave fly into the ground I made a turn to return my Whippy back to me, it made part of the turn then started to wobble again and remain wobbling. I hit throttle hold...nothing. It didn't matter what I did, it continued its course into the ground.

The throttle was set at 65% when it hit the ground. I was somewhat surpassed, the motor didn't stop running. The main blades locked into the soft ground and stopped turning as the motor kept trying to rotate the main blades. As I ran up to the crash site, the motor started to increase in rpm. The only 2 things I could do was 1.) let it run until the motor fail, or 2.) reach in with my hand and shut the throttle off. So I picked option 2...I placed my foot on one of the broken blades and turned the throttle servo towards the off position. By this time the gas motor was really screaming in rpm's.

The initial damage assessment...one control arm, both control links, main shaft & all 3 bearings, main gear, boom, torque tube, boom supports, landing gear, canopy...and the clutch bell. Once home and started disassembling the carnage, the clutch bell is warped, no longer perfectly round. The spray is destroyed, practically melted, bearing are close to being welded, severely tempered.

I haven't looked at the motor yet. Not sure if I want to at this point. The clutch shoe has a burned area at the center of the shoe, so not sure if I can fix it...sanding the surface down some...break off the burnt glaze.

So I continued flying with my Compass 3D+, Bill's Raptor 50, and his Blade 450 3D. I took my Compass 3D+ out Sunday after church for a couple of flights. Temp for Sunday...52, wind 20 mph with gust up to 30 mph, partly cloudy.

Whiplash crash diagnostics
________________________________________

The battery switch I was using failed. It was a heavy duty single pole single throw switch rated at 20 amps. I wasn't able to find the body of the switch, just the mechanical remains. The only thing(s) I can figure, it failed due to a fuel leak, in which I discovered 2 flights earlier, fuel seeped into the switch and failed the contacts...or the switch started falling apart due to the motor vibrations and the canopy pushing against it. I didn't think the canopy could have hurt the switch if it was pressed against it, but that may have lead to the failure. The motor was running rough during the break-in process. I believe the switch fell apart which would explain why I didn't find any of the main body...case and contacts. I will never know for sure.

This time I will not use a switch, either Dean connector or EC3's...like I do with my Protos 500, Compass 3D+, 6HV, and Trex 700.

The crash wasn't hard; it did a bank turn into the ground. I was about 10-15 feet off the ground. It hit on the front right side (muffler side) starting with the landing gear and the rotor disk, it flopped around and bent the tail section including small damage to the nose of the canopy. It was enough to rip apart the bottom of the canopy. The rotor head took most of the impact. It bent the mainshaft really well, about 20 degrees worth.

I haven't fully checked the motor; I will tonight or tomorrow night. The one-way bearing bolted to the motor for the start shaft...the bearing inside is rough, works, but don't trust it so I'm replacing it. As for the shoes, I will try sanding [lightly] the surface with some 180 grit, maybe scuff up finish the surface with some used 80 grit sandpaper. I'll ask Al where I can buy another clutch shoe.

When I reached in to shut the motor off...it didn't die all at once. The motor came to an idle for several seconds, and it was "purring" like it did before the crash, with no vibrations. The whole time the motor was screaming, it was very smooth, no excessive vibrations. I'll ask Al what I can do to determine whether or not to send it in.

I ordered the replacement parts, with a couple of extra goodies, from Heliproz last night. I should have them by Thursday after work. In the meantime, I'll start cleaning the dirt and oil off of everything. The main body of this heli is very strong! I was expecting to replace a frame side or both.

Whiplash = 2 (total = 31)
Compass 3D+ = 4
Raptor Titan 50 = 1
Blade 450 3D = 2
Total = 38
Plugs = 1
Crashes = 1 Whiplash

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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04-01-2013 03:51 PM  5 years agoPost 18
fla heli boy

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cape coral, florida

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hmmm...maybe add some kind of kill switch?? My new DA35 RA came with an Opti-Kill.

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04-01-2013 04:34 PM  5 years agoPost 19
JKos

rrProfessor

Redondo Beach, CA

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Sorry to hear it crashed. Are you using a throttle return spring and a throttle servo that the spring can move when the servo isn't powered?

- John

RR rules!

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04-01-2013 07:18 PM  5 years agoPost 20
rcnut

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Rockford, Illinois

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Are you using a throttle return spring and a throttle servo that the spring can move when the servo isn't powered?
There's one on the carb, but it's not strong enough to take over in the event of loss of power. Not sure how to add one.
hmmm...maybe add some kind of kill switch?? My new DA35 RA came with an Opti-Kill.
Providing I didn't loose power, I could have used the throttle kill switch. There is a kill button switch on the motor, but you need to reach in and press the button. Unless...need a crash sensor that would kill the motor for you! Hmmm...

It's kind of like having a LiPo fire in flight. How do you kill the power (remove the short) once you land?

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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