RE: Pilatus PC-9, VMAR or Seagull?

RE: Pilatus PC-9, VMAR or Seagull?
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RE: Pilatus PC-9, VMAR or Seagull? - 5/20/2007 10:28:40 PM

Posts: 699
Joined: 1/9/2006
From: Frozen_Earth, USA
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I installed the fuelfill valve on the side of the fuselage, so I wouldn't have to drill into the cowling and create future cowling cracks. Now I have a bigger prob. I tried setting the CG with all equipment installed, battery far forward as possible. According to the PC-9 manual, the CG has to be set 10 cm or 3 in. from the leading edge, inverted of course. When I try to check CG at present setup, nose of aircraft points straight up and tail section straight down. How in the name of Allah am I going to be able to add roughly a pound of weight to this planes tiny nose?

Pearl

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RE: Pilatus PC-9, VMAR or Seagull? - 5/21/2007 6:42:06 AM

wolw

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From: Gustafs, SWEDEN
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Pearl,

10cm =4"

//Peter

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RE: Pilatus PC-9, VMAR or Seagull? - 5/22/2007 6:59:43 AM

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From: Frozen_Earth, USA
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Thats how they do it in Vietnam lol!!. Actually, the manual says 10 cm, never mentions the 3 in. I used an online measurement calculator and gave me 3.165 and I went from there. Afte your post, I tried a different program and gave me 3.9. I'm back in biz. I'm also building a Hangar 9 Cessna 182 95" span with O.S. 1.60 twin, and a Megatech J-3 cub 48" .20 2 stroke

Thanks M8,

Pearl

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Time is a man made concept, therefore it doesnt mean anything, no I dont do Mondays, I go by my own time, which doesnt exist

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RE: Pilatus PC-9, VMAR or Seagull? - 5/27/2007 9:13:09 AM

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From: San Diego, CA, USA
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All,

Today I flew my 4 th and final flight with the Seagull PC-9. I had a OS46AX with a 10x8 prop and it flew great. The issue I had was in a 35 degree long high speed dive the elevator fluttered as I did a slow pull out at about 60 Ft AGL at 90MPH. I hit the ground turning the plane into confetti. When the flutter happened, the nose dropped another 5 degrees and I had less than a second before it hit. The crash cracked the case of my new OS 46AX… total loss!

One thing I did not do was seal the hinge gaps. Also make sure there is no slack in the control rods and replace the clevis with metal ones and maybe even the push rods.

Now up to the point of the crash, this plane flew great and fast. Was easy to take off and lands, although a little fast. I really liked the air plane and am considering getting another one. Good luck on your continued flight, but be aware of the flutter.

Tom

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AMA# 892881 - All R/C Aircraft have an Expiration Date... The Trick is Knowing and Avoiding the Date!

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RE: Pilatus PC-9, VMAR or Seagull? - 5/27/2007 11:57:25 AM

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Joined: 5/25/2007
From: BELLMERE, AUSTRALIA
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Hi mate,
I had a seagull pc-9 it was awsome. Just make sure you use some heavy duty servos on the rudder and elevator as this is what let me down in the end. I flew its wings off, it is a very good plane to learn basic areobatics with. I ran a os 50 motor in it which was pretty good. But if I was to do it again I would chuck a os ax55 p box in it. Have fun.

Regards

ANDREW.

(in reply to RC2K3)

RE: Pilatus PC-9, VMAR or Seagull? - 5/28/2007 9:03:04 AM

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From: Frozen_Earth, USA
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Thanks for the advice Tmulder and Chicken little,

I finished my PC-9, at least I thought I was done. Baldeagle dude on page 30 has a great mod for the flutter prob and said it works fine. I still have the plastic pushrod ends on and the S148 servos. After reading you guys experiences, I will add stronger servos and the metal pushrod ends, and will also do the Baldeagle dude flutter mod. Hope to have her flying in the next couple of weeks. If I don't crash and after my 1st flight, I'll be driving home with a smile and will be thinking of the online guys that made it possible. I'm not much for aerobatics, speed is my satisfaction!!

Thanks all, Cheers!!

Corey aka..Pearl

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Time is a man made concept, therefore it doesnt mean anything, no I dont do Mondays, I go by my own time, which doesnt exist

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RE: Pilatus PC-9, VMAR or Seagull? - 5/28/2007 12:00:30 PM

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From: BELLMERE, AUSTRALIA
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Hi again,
I would definately change those rods over. And you say you like speed well I have been flying now for only 22 months in a realy good club in queensland and I can tell you from my experience that if you learn to slow down and practice your manourvers you will end up having alot more fun and going home with your plane intact. Anyway just some food for thought.

Regards ANDREW.

(in reply to Pearl_414)

RE: Pilatus PC-9, VMAR or Seagull? - 6/12/2007 7:37:18 AM

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Hiya Chicken, ty for the comfort, but I been flying rc planes for not 22 months, but 20 years. Hope to get this bird in the air sometime next year.

Pearl

_____________________________

Time is a man made concept, therefore it doesnt mean anything, no I dont do Mondays, I go by my own time, which doesnt exist

(in reply to chicken little)

RE: Pilatus PC-9, VMAR or Seagull? - 6/12/2007 8:03:26 AM

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From: BELLMERE, AUSTRALIA
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Sorry Pearl,
No disrespect intended. Just that I have seen hotdoggers before that try to run before they lern how to walk and in 99% of their cases their plane never flys again if you know what I meen.
Anyway have fun I am sure you will.

Regards

Andrew.

(in reply to Pearl_414)

RE: Pilatus PC-9, VMAR or Seagull? - 6/12/2007 10:26:10 AM

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From: Wychling, Kent, UNITED KINGDOM
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Have you guys seen the retactable undercarridge mods on : http://www.rcuniverse.com/forum/m_3598534/tm.htm you may be interested especially in the increase in speed.

Mike

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RE: Pilatus PC-9, VMAR or Seagull? - 6/15/2007 2:12:18 AM

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From: Frozen_Earth, USA
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No apology needed Chicken. You were trying to help me and I appreciate it vm.

I bought 2 futaba high torque 3010 servo's for the rudder and elevator. Do u guys think these servo's will be strong enough for the listed application, for a long period of time, such as years?

I also bought a onboard glow plug starter kit and 2 rolls of chrome covering. I'll post pic's when it's all finished up.

BaldEagle, that looks like a cool mod, but think I'll just keep the stock gear on. How fast can the PC-9 go with that retract mod?

Thanks all!!

Regards, Pearl

_____________________________

Time is a man made concept, therefore it doesnt mean anything, no I dont do Mondays, I go by my own time, which doesnt exist

(in reply to BaldEagel)

RE: Pilatus PC-9, VMAR or Seagull? - 6/15/2007 9:11:55 AM

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If you look at the whold thread, I think near the end you will see the rada gun readings.

Mike

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No matter what anyone says 100% is the maximum you can get.

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RE: Pilatus PC-9, VMAR or Seagull? - 6/15/2007 11:14:37 AM

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Eagle, could u slap a link down, so I don't have to run around like Nick Berg, with my head cut off?

Thanks,

Corey

_____________________________

Time is a man made concept, therefore it doesnt mean anything, no I dont do Mondays, I go by my own time, which doesnt exist

(in reply to BaldEagel)

RE: Pilatus PC-9, VMAR or Seagull? - 6/15/2007 1:26:04 PM

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From: Wychling, Kent, UNITED KINGDOM
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Post 670 only three back? Post 67 on Page 3 is that close enough.

Mike

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No matter what anyone says 100% is the maximum you can get.

(in reply to Pearl_414)

RE: Pilatus PC-9, VMAR or Seagull? - 6/16/2007 9:06:46 AM

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Ty dude, appreciated.

Pearl

_____________________________

Time is a man made concept, therefore it doesnt mean anything, no I dont do Mondays, I go by my own time, which doesnt exist

(in reply to BaldEagel)

RE: Pilatus PC-9, VMAR or Seagull? - 6/16/2007 9:10:16 AM

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Joined: 5/29/2005
From: San Diego, CA, USA
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All,

The way I fixed the push rod flutter was to install some nylon push rod exits. Then I used a wheel collar around the Z-bend and placed it on the push rod exit. The exit acts as a bearing and I snugged up the play but left enough room so that it did not bind the servo. This worked great as the push rod had no movement.

_____________________________

AMA# 892881 - All R/C Aircraft have an Expiration Date... The Trick is Knowing and Avoiding the Date!

(in reply to BaldEagel)