RE: Nitroplanes 90" P-38 (1/7 scale) with 3 piece wing and more

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 piece wing and more
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RE: Nitroplanes 90" P-38 (1/7 scale) with 3 pi... - 4/14/2008 5:35:41 AM

Posts: 1645
Joined: 8/17/2002
From: n. canton, OH, USA
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Got the supercharger intakes done. Here they are. I used Estes rocket nose cones, shaped balsa for the front, and shaped 1/2" triangle stock for the mounts.

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(in reply to Glacier Girl)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 pi... - 4/15/2008 4:27:44 PM

Posts: 6585
Joined: 7/9/2004
From: SomewhereIn, PA, USA
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About time you got back here.

I started dry fitting mine together this week end. Somehow ended up short a prop.

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_____________________________

"The Missing Man Formation"
Looking heavenward you cannot help but shed a tear...mornful...lonesome...a hole that screams out almost as loudly as the roar of the engines that pass over head.

(in reply to ram3500-RCU)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 pi... - 4/16/2008 3:44:35 AM

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From: n. canton, OH, USA
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GG, very nice work, and even comes with nose gear!!!

Looks like you will beat me into the air with a beautiful P-38. I''m working on the cockpit while I wait for other parts. I have some flat black foam core sign board that is making some nice light panels that don''t need paint. I''ll have some pictures soon.

For those interested, I now have some material to cut out some formers and ribs. I am tweaking my patterns before I do.

(in reply to Glacier Girl)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 pi... - 4/17/2008 2:38:36 AM

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Joined: 11/23/2006
From: Brooks, KY, USA
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HEY guys....
GARY you know I am interested...... You just say the word.... lol
I would like all the FORMERS " Greedy" lol

(in reply to ram3500-RCU)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 p... - 4/18/2008 1:10:39 AM

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Joined: 7/9/2004
From: SomewhereIn, PA, USA
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Me too Gary, I'm already thinking about another one for the Hangar.

_____________________________

"The Missing Man Formation"
Looking heavenward you cannot help but shed a tear...mornful...lonesome...a hole that screams out almost as loudly as the roar of the engines that pass over head.

(in reply to TeamMuir1)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 p... - 4/18/2008 1:52:34 AM

Posts: 1645
Joined: 8/17/2002
From: n. canton, OH, USA
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I'm looking forward to seeing what you guys come up with in addition to what I have done. Lots of potential with such a light plane to begin with. It will be a pleasure to help in anyway I can. Wish we could bring them together somehow. 'I have a dream'

.

UPDATE.......NEWS FLASH.........AS OF 7:15 PM, THE NOSE GEAR IS IN MY HANDS!!!!!!!

`

I will be spending a little time on it tonight. Stand by for pictures.

(in reply to Glacier Girl)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 p... - 4/19/2008 9:15:02 PM

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From: n. canton, OH, USA
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Well, after much waiting, the nose gear is under way. I have the mount designed (templates made)[)], built, and ready to install. I should have it installed tonight. Then I can get her on her feet and see if my calculations are good for a scale like angle of attack on the ground, unlike the stock Nitro version. Much easier to have plans to work from, but everything just takes a little longer to design as you go. The wedge in the mount puts the tire just clear of the door, yet still leaves a scale like angle to the 105 deg. nose strut when down.

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< Message edited by ram3500-RCU -- 4/19/2008 9:17:11 PM >

(in reply to ram3500-RCU)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 pi... - 4/20/2008 9:47:28 PM

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From: n. canton, OH, USA
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Finally got her up on her feet. Everything is working out well. Good, scale, nose high angle of attack, good strut angle, feels solid. Plenty of room for the steering servo, and cockpit. Still need to work out the hinging of the nose gear door, but so far so good.

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< Message edited by ram3500-RCU -- 4/21/2008 5:28:52 AM >

(in reply to ram3500-RCU)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 pi... - 4/22/2008 11:40:57 PM

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From: n. canton, OH, USA
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Door works great. I figured out where to put the pivot point (not where I expected), and the curved door just clears the bottom and looks fine. I'm working on the operating system for the doors now (trying to avoid air cylinders), and getting the center pod painted. Pictures later tonight.

(in reply to ram3500-RCU)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 pi... - 4/24/2008 12:49:30 AM

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From: n. canton, OH, USA
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Here is the nose gear door. I found that if the hinge is set to pivot about 1/4" back from the edge, is swings well clear of the opening, even being curved as it is.

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< Message edited by ram3500-RCU -- 4/24/2008 3:30:53 AM >

(in reply to ram3500-RCU)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 pi... - 4/24/2008 1:23:44 AM

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Joined: 10/30/2004
From: Amarillo, TX, USA
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Doors on the 38 look good ram3500. I'll have to keep this thread saved so I can go off it to do my gear doors like that. I have the KMP P-38 with 2x evo 61's on it.

(in reply to ram3500-RCU)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 pi... - 4/24/2008 4:17:30 AM

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From: n. canton, OH, USA
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Got a little more paint on the pod. I'm going to add some panel lines and other details like the ladder outline, and the recognition lights to the bottom yet. I also pulled out the 'guns' that Nitro installs in the nose, so I can install ones more scale in length and also add the cannon that they didn't deem necessary.

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(in reply to ram3500-RCU)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 p... - 4/24/2008 7:36:10 PM

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From: SomewhereIn, PA, USA
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Gary are the retracts air up/ spring down?
Easiest set up for closing the gear door is a piece of clear fishing line. One end on the outer end of the door, other to the inside of the pocket. As gear closes it contacts the line and shuts the door behind it. As gear extends it releases tension on the line, door drops open and gear extends. Pretty much fail safe.

I always worry about having a gear door set up that fails and makes you land wheels up.

_____________________________

"The Missing Man Formation"
Looking heavenward you cannot help but shed a tear...mornful...lonesome...a hole that screams out almost as loudly as the roar of the engines that pass over head.

(in reply to ram3500-RCU)

RE: Nitroplanes 90" P-38 (1/7 scale) with 3 p... - 4/25/2008 5:35:20 AM

Posts: 1645
Joined: 8/17/2002
From: n. canton, OH, USA
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quote:

ORIGINAL: Glacier Girl

Gary are the retracts air up/ spring down?
Easiest set up for closing the gear door is a piece of clear fishing line. One end on the outer end of the door, other to the inside of the pocket. As gear closes it contacts the line and shuts the door behind it. As gear extends it releases tension on the line, door drops open and gear extends. Pretty much fail safe.

I always worry about having a gear door set up that fails and makes you land wheels up.

I finally went with air up and air down. I'm still pondering the situation, but my thoughts are some kind of spring loaded door that would be pulled shut as you describe, but that would be spring loaded to open. I wouldn't want the door to close behind the gear accidentally and be trapped by it. I have used this method before, but not on doors this large. I am looking at linkage to the struts as well, but the geometry is tricky and it looks like I would need a slip joint to boot. I'm trying to avoid the (5) air cylinders and sequencing valve to do it pneumatically. $$$$$$$ Hope I can solve this before the snow flys again.

< Message edited by ram3500-RCU -- 4/25/2008 5:39:02 AM >

(in reply to Glacier Girl)