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HomeAircraftHelicopterGasser Model RC HelicoptersOther › 200 flights within reach now
11-23-2006 12:47 AM  11 years agoPost 1
rbort

rrProfessor

Franklin, MA - USA

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Well I've had this week off so I've been logging flights with my helis. My latest and greatest "gizmo" is the little T-rex with a video downlink mounted camera between the skids. I've been hauling it back and forth to the field with a TV, power inverter, extension chord, a tripod for the video receiver, and my chair so I sit down and fly by video while watching the TV. I only have two batteries so I get two flights when I get there, recharge and then 2 flights before I leave. So far I've had about 12 flights with video on the T-rex, and just today I'm finally getting comfortable flying from the cockpit without having to look back and forth at the heli all the time. As more flights are logged, I can fly more and more without looking - cool! I made a post about this on the T-rex forum a couple of weeks ago but I thought I'd share that here with my gasser buddies.

Speaking of gassers, today I had the Spectra out with me. 2 more flights logged and we are sitting pretty at 195 flights now. I think by the end of this coming weekend I should break through the 200 flight barrier. She is flying good and responsive, and giving me that warm fuzzy feeling when I'm behind the controls! I was flying my 1005 gasser yesterday inbetween T-rex flights, and while that machine flies very good as well, its not as "locked" in as the Spectra. Probably has to do with the CCPM and less slop in the linkage than the original 1005 with rocking servos (aileron with collective servo pushing on it).

Oh and another update, the Hanson G26 Pro Plus is doing well in the Spectra, but it hasn't reached the same amount of power I was getting with the Hanson 3D Plus motor. Top headspeed I was able to record was 1750 rpms on a vertical climbout, so that is still short 85 rpms when compared to the 3D motor. On most cases it registers 1730 rather than 1750, so I'll safely say there is 100 rpms head speed difference between the two. I think the plan is going to be to pull out the G26 that is in the 1005 gasser (which is not the plus version), make that a 3D motor plus version, put that in the Spectra and move the Pro Plus back over to the 1005. A little bit of engine round robin business, but the end result will be what I'm looking for.

I want to wish you guys a Happy Thanksgiving as well, hope you all eat well and don't pig out too much. Heck, pig out, its only once a year. You can always lose it back later when you go fly all day on the field and don't eat much then!

Cheers everyone!

-=>Raja.

MA 1005 Hanson 280, 4210 flts
Spectra 27 3DMax, 3280 flts
Whiplash V1-2 Hanson 300, 1555 flts
Whiplash V2 Hanson 300, 393 flts

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11-23-2006 01:10 AM  11 years agoPost 2
broncoholic

rrApprentice

USA

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I wish I could just get my first flight under my belt. Hopefully by Monday I can have it all back together. Just waiting on my servo wheels form Ricks and then I can finish pputting the 601 on and get it fine tuned and I should be ready to ROCK!

Happy Thanksgiving to you and yours as well and to everyone else!

Get stuffed and watch football!

take it easy

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11-23-2006 01:53 AM  11 years agoPost 3
Toadster25

rrKey Veteran

Iowa

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It looks like the weather around here should be close to 60 F so I hope to get some flights on my Spectra tomarrow. I just got my new black flybar paddles that are suppost to be a little bit heavier than the white ones so I want to see how she flys with those on. I hope it makes it a little less touchy. I've got to say that I like my Spectra and I think I only flew my old fury a couple time this year. I think it's been a year now since I last crashed my Spectra so that helps me like it even more. I am definatly thankful for that.

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11-24-2006 04:24 AM  11 years agoPost 4
rbort

rrProfessor

Franklin, MA - USA

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Toadster: Did you get to try out the flybar paddles and how do you like them?
I'll be going out tomorrow to fly my G and do some muffler testing just because. I have a Century V2 and a Century V3 and I'm going to bolt them both on and try full power climbouts with my Spectra and see if there is any difference to power with them as Century claims.

I know I can measure 1.5oz lighter on the V3 versus the V2 so we know that is one good thing. Tomorrow will be the power test so stay tuned and I'll report back the findings. Not sure if I'll make it to 200 flights as its supposed to be windy (18mph) so flying may be not so enjoyable....

-=>Raja.

MA 1005 Hanson 280, 4210 flts
Spectra 27 3DMax, 3280 flts
Whiplash V1-2 Hanson 300, 1555 flts
Whiplash V2 Hanson 300, 393 flts

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11-24-2006 05:15 AM  11 years agoPost 5
asong26

rrVeteran

VA

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Raja,

I would be eager to see your results. This a hotly debated item, which no one that I know of used quantitative measures to see if the V3 actually does have more power.

Good luck.

Andrew

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11-24-2006 05:16 AM  11 years agoPost 6
asong26

rrVeteran

VA

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Raja,

In order to test out the actual power output gain, can you do another test? Can you add 1.5 oz of weigh on the V3 to level the playing field?

Andrew

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11-24-2006 10:46 PM  11 years agoPost 7
rbort

rrProfessor

Franklin, MA - USA

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Not what you expected!
Well I did the full power climbout tests today with the V2 and the V3. I did 3 tries on the V2 but on the last try I felt I turned off the gv-1 too soon before the full load was applied. Anyway, those 3 trial runs got a max rpm of 1830. I redid the test with 3 more tries and this time around that to repeat the same test over and over with no change in the sequence that I do and I got 1800rpms.

I swapped out to the V3 and noticed that the V2 had loosened up a bit and some exhaust oil came out around the mount area. I think that happened on the last climbout as it sounded "different" not faster and I aborted and came back.

Anyway with the V3 bolted on I tried two seperate tests and on one set I got 1760 rpms and on the 2nd run I got 1790 rpms. With the 1790 I tried a few more climbouts and I could not break into the 1800 range.

If we average that out, I'll say that the v2 was getting 1815 and the v3 was getting 1775. By my book the v3 is 40 rpms weaker than the v2, opposite what you would think the results would be.

Just an an FYI my climb altitude was probably about 1000 feet as I let it go for a good 10 seconds before hitting throttle hold, dropping collective to the bottom (-10) and falling like a rock back down and it took quite some time to come down too so it was pretty high and plenty of time for the motor to stabalize on the max rpms.

-=>Raja.

MA 1005 Hanson 280, 4210 flts
Spectra 27 3DMax, 3280 flts
Whiplash V1-2 Hanson 300, 1555 flts
Whiplash V2 Hanson 300, 393 flts

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11-24-2006 11:29 PM  11 years agoPost 8
asong26

rrVeteran

VA

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Great test Raja,

Obviously, you didn't have a chance to add additional weight to the V3 to equalize the weights for both V2 and V3. But I guess you didn't need to.

It seems that V2 is as good as it's going to get w/ the weight penalty.

Here's my next 2 questions:

1. Did both of them have the suppressor caps on them?
2. Could it be that your V3 is loosing compression due to small pin holes? I know you've plugged them, but just wondering if this would affect it any...

Great test, and thank you for finally clearing up that question.

Andrew

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11-24-2006 11:40 PM  11 years agoPost 9
asong26

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VA

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Raja,

I've also noticed that my V2 is loosening, and ended up dripping oil all around the mount area. I thought about using loc-tite, but what's the use? I mean with all that much heat, there is no way loctite will hold that. It would melt very quickly, wouldn't it?

Andrew

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11-24-2006 11:47 PM  11 years agoPost 10
Toadster25

rrKey Veteran

Iowa

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I did get a chance to fly I think I put 4 or 5 flights in. I did like the black paddles better.

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11-25-2006 12:30 AM  11 years agoPost 11
copperclad

rrElite Veteran

NY

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hi andrew
there is a red RTV silicone that works well and will take the heat , dana

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11-25-2006 12:35 AM  11 years agoPost 12
asong26

rrVeteran

VA

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Dana,

What about the strength of this thing. What if I needed maintenance on the engine, or the pipie. Can you easily take it out with enough torque after using this stuff? Also how much do you use? Just enough to cover the threads?

Andrew

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11-25-2006 01:32 AM  11 years agoPost 13
copperclad

rrElite Veteran

NY

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hi andrew

i clean the threads first and wipe some on the threads of the bolt , and apply some to the threads in the head with the end of a sushi stick , it holds good , and is not permanent , bolt comes right out when you need it , i picked this up off RR here so i know others do it too , the other thing i picked up here was skip the gasket , make sure the two metal faces are clean and flat and just use a slight smear of RTV instead of the gasket , again has been working great , dana

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11-25-2006 01:42 AM  11 years agoPost 14
asong26

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VA

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Dana,

Thank you for the tip. I've tried skipping the gasket, but it doesn't work for me. No matter how tight torque the screws, there's a little play that won't go away. And with that much play, it will be shooting oil, and possibly lose conpression. Did yours fit snug without the gasket? I am currently using 2 gaskets, and metal piece in the middle...

Andrew

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11-25-2006 05:00 AM  11 years agoPost 15
rbort

rrProfessor

Franklin, MA - USA

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Try making a copper gasket
I made a copper gasket for my v3 and it seems to work pretty well. The v2 I was using the stock gasket and it got loose but I didn't do the rtv trick with helps, was just testing at the field.

Anyway i decided to keep the v3 as its 1.5oz lighter and give the V2 to the autonomous heli project. Next week it will be out of my hands and down near you Andrew!

-=>Raja.

MA 1005 Hanson 280, 4210 flts
Spectra 27 3DMax, 3280 flts
Whiplash V1-2 Hanson 300, 1555 flts
Whiplash V2 Hanson 300, 393 flts

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11-25-2006 05:09 AM  11 years agoPost 16
asong26

rrVeteran

VA

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That's right! It's next week isn't it? We'll definitely sync up. I'll ping Mr. Disciple to see if he can join us!

It'll be fun, and you can show me how to make the copper gasket. I wouldn't mind if you brought an extra one either

Andrew

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11-25-2006 09:06 PM  11 years agoPost 17
copperclad

rrElite Veteran

NY

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there's a little play that won't go away
hi andrew
something is not right , if both surfaces are flat , there should be no rocking , if the muffler has been run loose , it will peen the surfaces and this could be the cause less thank perfect mating of the manifold and head , HTH ,dana

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11-25-2006 11:38 PM  11 years agoPost 18
asong26

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VA

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Dana,

When I initially mounted the V2 muffler without the gaskets, I couldn't get it snug enough. So I called Century, they confirmed that in order to get it to fit snug, you must use both of the gaskets provided. When I used both of the gaskets, it then fitted very snug.

Are you using the same muffler with G231? If you are, then may be you are right (something is wrong...)

Andrew

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11-25-2006 11:57 PM  11 years agoPost 19
Chopper Man100

rrVeteran

Canton GA.

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Asong26, I have to assume that your bolts are boarder line to long. I haven't worked with the set up you have but I would have to guess when you put the second gasket in, it made it just tight enough where it felt tight but wasn't really tight enough and worked loose. Maybe at that point it started to wear the muffler surfaces so now thay are thinner and won't tighten up anymore. I don't know if this is possible but can't you put a washer or two under the bolts so the bolts aren't bottoming out in the engine? Again, don't know if this is how your setup is setup or not, just a pondering guess.

On a second note, is it common for these mufflers to loosen up, doesn't that signify that there is a vibration problem?

CW

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11-26-2006 12:15 AM  11 years agoPost 20
copperclad

rrElite Veteran

NY

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hi andrew
yes i am using a V2 on both a 260 and a 231 , i am a nutcase when it comes to fitting things , so if the bolts were bottoming in the threads i would have shortend them without much thought , Raja's idea of a copper gasket is good as it is soft enough to seal but not so soft as to squish out of the way , i think the stock gaskets may be too soft , and stacking them may make this problem worse , i could be wrong on this though , dana

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