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HelicopterScale Model RC Helicopters Docs  Marvelcraft Bell 407
08-23-2014 05:10 AM  3 years agoPost 861
MarkH

rrApprentice

Gilbert, AZ

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Over the last two months, I have been in contact with Faye (Flying Seasons / Pro Heli) about the cockpit they made for the 407. I was the initial customer for one and as previously mentioned, the version they sent me was way too big. So after writing them about this, they wanted to make a new one and I sent them a bunch of pics and dimensions. Two weeks ago I got the new revised version and it is, in my opinion, perfect. I did not have to make any mods or trim it at all. The first pic shows the original 407 cockpit (which I had already hacked on a bunch), the new one in the middle and the 50 size Jet Ranger version on the right. Also posted are some pics of my mostly finished cockpit.

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08-23-2014 06:06 AM  3 years agoPost 862
flyawayed

rrVeteran

orlando , fl .USA

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Looks real nice Mark but why did they make it with the screens like the first one they sent you? I thought that IP looked really good and not so plain jane like a stock 206 IP.

edward lopez sanchez

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08-23-2014 02:45 PM  3 years agoPost 863
MarkH

rrApprentice

Gilbert, AZ

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Ed, when I originally asked if they could make a 407 IP, I also sent a pic of the one I was trying to replicate. My subject has a round dial panel. I believe they put the PFD/MFD setup in to replicate the 407GX which probably is more popular. The new IP is smaller and he told me it was not big enough for the dual display. They could either make it a single display with some round dials or all round dials. I asked for all round dials and the black background as white was also an option. This is a pic from the subject heli. I still need to add a FLIR display.

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08-23-2014 06:33 PM  3 years agoPost 864
flyawayed

rrVeteran

orlando , fl .USA

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Well with talking to superviseing mechanic at OCSO maintenance said that bell makes 9 different IP per order and the GX is the all glass IP with no dials just two large screens. My 407 has a RP9 IP, with duel screens with dials on the pilots side and radio and large flir screen on observer side. And being I wanted to be accurate to the IP to my build.

edward lopez sanchez

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08-25-2014 03:58 PM  3 years agoPost 865
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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My Antennas are commimg up nicely in the backyard.

drive a rotary, fly a rotorcraft

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08-25-2014 04:43 PM  3 years agoPost 866
bwellmaker

rrKey Veteran

Long Island

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UIH,

Dang, you guys are making some really nice helis. I look forward to seeing some of them at Dalton.

UIH,

B

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08-25-2014 05:30 PM  3 years agoPost 867
flyawayed

rrVeteran

orlando , fl .USA

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See that how u do it, natural grown antennas pick and mounted at their freshness! What fertilizer do u use? lmao.

edward lopez sanchez

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08-25-2014 06:12 PM  3 years agoPost 868
Heli143

rrElite Veteran

Phenix City, AL

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natural grown antennas pick and mounted at their freshness!

Edward, that was funny!!!

Roy Mayoral

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08-25-2014 08:58 PM  3 years agoPost 869
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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Butch, you wont recognize mine at Dalton this year because after two years of flying it in primer, its painted
Ed, I use an xacto knife, birch wood and some ca glue. add primer n paint and it turns out nicely
making the pitot tube as soon as I find the right pen to sacrifice lol

drive a rotary, fly a rotorcraft

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08-25-2014 09:22 PM  3 years agoPost 870
flyawayed

rrVeteran

orlando , fl .USA

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See I didnt want to be a brute and kill a poor little pen to canablize it make a part. What did the pen do to u that ur going to kill him off, poor thing. Lmao see used these brass rivets and small piece of 3/32 brass tubing to make my pito tube and spared the senceless slotter of poor pens everywhere! lmao

edward lopez sanchez

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08-25-2014 11:22 PM  3 years agoPost 871
Keygrigger

rrVeteran

Mississauga, Ont. Canada

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I only sacrificed pens that had already finished living their lives as a writing utensil. Once that had happened, their bones become my pitot tubes, lol. Of course, any pen that skips, leaves blobs on the paper, or leaks in my pocket, is fair game. Take care and don't kill a good ballpoint pen before its time.

Don

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08-26-2014 05:05 AM  3 years agoPost 872
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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I have to use a pen
Only a pen will do
Cuz while at dalton, mr event host always calls for the registration sheet to be signed while i'm flying so all I have to do is hover over to him, have him hold it up and I can sign it without skipping a beat :-)

drive a rotary, fly a rotorcraft

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08-28-2014 06:02 PM  3 years agoPost 873
MarkH

rrApprentice

Gilbert, AZ

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Guys,

I'm having issues with losing tail rotor authority. I'm running 700 mains at around 1150-1250 rpm and have tried the both the Spin 105 scale asymmetrical and the normal symmetrical with the same results.

Watching the tail linkage during a hover and it's pretty much all the way over the counter the torque. It will hold for a while and then let go. I don't think it's the tail servo but haven't ruled that out.

Anybody using bigger tailblades or have any other ideas?

Also, I really didn't want to post these, but here's the result of the first time this happened. It was the first time I did more than just a low hover in the backyard and was hovering at about 20' when I lost the tail. Entered an auto but not much room to build up the rpm. It hit flat but hard. Gear did a great job taking the impact but did have the blades hit the right sided fin. This was a couple of weeks ago and everything is back together, including new set of gear, but I'm being very cautious.

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08-28-2014 07:03 PM  3 years agoPost 874
cap231ex

rrApprentice

Muncie , Indiana , USA

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I had a very similar issue with my stretched T600 installed in my 60size FunKey 206L Long Ranger.

My solution was to go with a belt driven tail and install a Thunder Tiger 8t pulley in the tail gearbox.

This sped up the tail and I have not had any issues with it sence.

Hope this helps , and soory to see the pics even if you have sence fixed it.

Good luck.

http://www.rcgroups.com/forums/show...&postcount=1632

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08-28-2014 07:33 PM  3 years agoPost 875
206 pilot

rrVeteran

,Long Island,new york

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Hey mark sorry to see your Heli like that, I'm using the trex 600 700 torque tube cut 600 gear box 115mm tail blades 1495 1500 rpm Heli locks right in ... Edward told me to go with bigger tailblades and I have no issue with the tail or the torque tube either,even with my 206, my main blades are 660mm... Rich

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08-28-2014 08:03 PM  3 years agoPost 876
flyawayed

rrVeteran

orlando , fl .USA

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Hey mark sorry to hear about ur bird! But two things I want to ask 1 what is ur power system(aka) number of cells r u running and ur head speed, and with four 700 mm blades the torque those blades r going to make even at a lower head speed ur tail is going to really struggle to hold what size tail blades are u running.

edward lopez sanchez

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08-28-2014 08:09 PM  3 years agoPost 877
Heli143

rrElite Veteran

Phenix City, AL

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I am using 115mm tail blades with 660mm main blades from Rotortech and so far so good.

Roy Mayoral

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08-28-2014 08:29 PM  3 years agoPost 878
flyawayed

rrVeteran

orlando , fl .USA

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Now see Cap231 has an ideal but with a 2 bladed rotor head thats fine but for a 4 bladed head No. You can see theres 3 guys already thats telling u they're useing 115 mm tail blades, Roy, Rich and myself but the biggest problem u have is your blades! Main and tail . See 105 are fine for a 700 class heli with two blades but when you double the drag of Four 700mm bladea the torque that those blade will make you either your going to have to go to 130 mm or a 4 bladed tail with 4 115 mm blades to hold it. When dealing with muilty rotor heads of a fuse, kind of a rule of thumbs is what ever size your bird is u use the next size down on blades so for a 90 size use 60 size. Or a50 size use a 30 size blades so if you had used a set of 660 or smaller with a set of 115 mm tail blades she will fly like a champ and the tail would be rock solid.

edward lopez sanchez

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08-28-2014 09:16 PM  3 years agoPost 879
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

My Posts: All  Forum  Topic

Mark, sorry for your mishap but glad it was minor. yes I too had yaw issues during the first test flts two yrs ago so I made some new T/R blades that were longer and wider to accommodate he load and increased torque required for the 4 blades. I didn't want to have to speed the head up any more than it was so longer or wider or both will solve that. a t/r speedup will also help as mentioned.

drive a rotary, fly a rotorcraft

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08-28-2014 11:05 PM  3 years agoPost 880
MarkH

rrApprentice

Gilbert, AZ

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Wow!
Thanks for all the responses. I'm using Logo 600 mechanics, 12s 5000 packs, 700 mains, 105 tails and head speed settings of 1150, 1250 & 1350. Edward has sent me several text (thanks!) and set me straight on my blade size situation. I'll need to get some shorter main blades before I proceed. The part that kind of stinks is I ordered a set of left hand 680 asymmetrical scale blades from Germany that are on their way. Those might be hard to unload.

With my mishap, I did make a few changes. One being I went to a left hand rotation main and yes, it is a little different lifting off. As far as any damage, it's all been taken care of with no noticeable dings. JestRR had a new set of gear that he sent me, the side fin was reattached that same day and all the paint marks from the blades came right off.

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HelicopterScale Model RC Helicopters Docs  Marvelcraft Bell 407
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