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P-38 Lightning Brotherhood

Old 01-24-2016, 09:16 PM
  #1176  
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just wished someone else would have recadded someones plans already to where just have to do some tweeking would make life easier rofl but mine will have the plans for scale gear on them too
Old 01-25-2016, 10:55 AM
  #1177  
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Ok I got a good copy of Leroy Webers super scale drawings you can grab them here http://www.proflooney.net/p-38_super...le_drawing.pdf
Old 01-25-2016, 10:56 AM
  #1178  
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I will zip up the factory drawings I have gotten so far for whats needed for drawing up set of plans they come to 100 meg ill put them on my site later today and post a link here. man I hate drawing from scratch rofl i stopped doing for others to do this plane for me just hate doing it rofl
Old 01-25-2016, 12:40 PM
  #1179  
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Ok the link to the factory drawing stuff http://www.proflooney.net/P-38/p-38factorydrawings.rar
Old 02-08-2016, 04:44 PM
  #1180  
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Hello Gentleman, Ladies as well if it should apply. I would like to be a part of this brotherhood. I am rescueing a Columbia Model Works P-38 build from a friend. Partially built. Partially all there. Doors are missing. Build manual is missing. Looks like I have all sheets of the plans, to include two sheets from/by Robart. It will be a project to say the least. Any good advise will be welcomed. Gear oprions etc is one of my first hurdles to jump/acquire.
Old 02-08-2016, 04:49 PM
  #1181  
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Thanks to SForrest. He is sending me a build manual. Hello to to Warbird-RCU, We have collaborated in the past as well

Last edited by FalconD; 02-08-2016 at 04:51 PM.
Old 02-10-2016, 08:06 PM
  #1182  
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Well pulled the trigger and the Zirolli plans are finally on the way! Plan is 50cc Counter rotating Kolm's for power. Rest is yet to be determined. No rush on this build. Just going to take my time and enjoy it
Old 02-10-2016, 08:25 PM
  #1183  
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Default Static Display @ Winter Warbirds in Phoenix

I finally pulled this P-38 beast out of storage and brought it home. Before the trip home I put it on static display with a P-40 & P-39 at Winter Warbirds in Phoenix as a group recognizing the Allison V-1710 engine as our first front-line fighter engine.

Its a product of a series of images taken during Operation Overlord in Normandy from approx D+2 to D+8 and its been in storage. Its due for a full annual, receiver, bat and general maintenance, but it was born a dirty bird and will stay a dirty bird.

Location = A-1 (ELS)(RRS)(ALG) & (Phoenix)




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Old 02-10-2016, 08:28 PM
  #1184  
70 ragtop
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ProfLooney, Thanks for taking the time to post those!

FalconD, welcome. Best of luck on your new project.

Thunderboat42, sounds good. I almost picked up Ziroli glass parts and wood kit here on RCU. After several emails, talking on the phone, and waiting a week for shipping total, he decided not to ship....damn!
The Kohms sound really nice, especially the three cylinder versions. I watch the video's of the earlier Mustang, and their Spitfire, and can't help but wonder what a pair of them would sound like. Would need to be a really big twin, but wouldn't that be a sight to behold

Simple, those are some great shots!

Last edited by 70 ragtop; 02-10-2016 at 08:31 PM.
Old 02-10-2016, 08:46 PM
  #1185  
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Originally Posted by ThunderBoat42
Well pulled the trigger and the Zirolli plans are finally on the way! Plan is 50cc Counter rotating Kolm's for power. Rest is yet to be determined. No rush on this build. Just going to take my time and enjoy it
Do you plan on documenting the build in a thread?
Old 02-11-2016, 09:50 AM
  #1186  
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Could you please add me to the list of the Brotherhood. Thanks. Mike
Old 05-23-2016, 05:08 PM
  #1187  
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Please add me to the p38 list. I. Currently have a CBA p38 that I have owned for years but never got to flying it. I am currently up grading the engines to DA 50s. Original motors are Sacs 3.2. Counter rotating. The new motors will not be counter rotating so I will have a better choice of prop selection. Question is , should I offset each motor outwards or mount them straight up.
Regards
Dave
Old 05-24-2016, 01:49 PM
  #1188  
simple
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Default "For thrust consideration in the air"

David68

I have a 38 that I originally built with G-38's.
Then several years later upgraded to DA-50's and matched the mounting thrust lines from the G-38's
I do not have them counter rotating and they are mounted both the same way without additional "thrust" as a consideration.

Thrust is an issue for the ground only - it pulls hard left during the low to high throttle transition on roll out, but it flies like a dream an it lands like a dream.

An onlooker posted this video of a take off showing the left thrust issue you can expect if you go the same way.

https://youtu.be/Zx7qstFNJg8?list=FL...P_IelBiO4ICITQ
<iframe width="300" height="169" src="https://www.youtube.com/embed/Zx7qstFNJg8?list=FLgFPAj1RLP_IelBiO4ICITQ" frameborder="0" allowfullscreen></iframe>

"For thrust consideration in the air" I recommend an on-board gyro as a much more sound and solid decision for potential engine failure

Last edited by simple; 05-24-2016 at 02:05 PM.
Old 05-24-2016, 04:08 PM
  #1189  
david68
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Thanks for the help Simple. I am considering the gyro for sure, at least on the rudders.

Regards
Dave
Old 05-25-2016, 06:57 AM
  #1190  
kram
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david68:

Great that you should bring that up now

The honorable Jeff Quissenberry acquired a CBA with G-62's couple of years ago and flew it coupla times

I bought mine TWELVE years ago and have only flown it about a dozen times, mostly because it scares me: lands like a manhole cover, stalls flat at about 40 kts

Under Jeff's tutelage and with intent to fly them together this summer, I am moving the CG forward to 5.5" and I fabricated Fowler flaps for it.

Mine has counter-rotating DA-50's (DA will do that for you at the factory) and I fly with 2-blade Zingers: the plane is old and beat up and I'm not that big a scale freak.

They rotate opposite the way you would expect, designed that way by the designer of the CBA kit, whom I believe built mine

I have owned and flown about 9 P-38's (the very definition of Twinsanity), and while I am not nearly the pilot that Jeff (or many others) are, I have several hundred flights on several different brands and sizes and I must say simple is giving you SOUND advice: counter-rotation is a historical curiosity, but basically meaningless on a model


P-38 is tricycle gear. You don't need help keeping it straight on takeoff. In general, P-38's are heavy and fast, but very stable and sweet flyers and landers AS LONG AS BOTH FANS ARE BLOWING! So point your engines straight ahead and focus all your efforts on the fuel systems and engines to make sure they always run. Period.

I have experimented with gyro's on my aerobats and I have rudder gyro's on my Bf-110's because they're taildraggers and uncontrollably squirrely on takeoff, but I have never tried them on P-38's, mostly because I'm too chicken to experiment with gyro-gain settings, or intentionally induce engine-out in a P-38. My success with engine-out P-38 flight is about 50%, depending on what you call success, and key components to salvation are LUCK and really aggressive throttle and rudder management
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Old 05-25-2016, 07:00 AM
  #1191  
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Too bad you don't live closer

Three CBA-38's in the air together would be a show-stopper at any venue!
Old 05-25-2016, 05:01 PM
  #1192  
david68
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Thanks for the advice Kram. Specially like the man hole cover part, lol. Hope to fly mine at Joe Nall next year if all goes well. I also need to work on the flaps. As it sets right now, I only have inboard flaps on the center pod. They are also just standard flaps, not fowler. That and the gear doors are all I really have left to do. I also raised the main gear struts a little with longer struts than the original ones to help keep the tail booms from hitting on rotation. Perhaps you may make a trip to the Nall next year than we could really put on a show.

Dave
Old 06-01-2016, 04:04 AM
  #1193  
SWORDSN
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Now your talking.I saw only one P38 at Nall this year.
Old 06-01-2016, 04:39 AM
  #1194  
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Simple, nice 38. What club do belong to?

Larry
Old 06-29-2016, 01:38 PM
  #1195  
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made some progress on my P38 build.

[ATTACH]2170396[/IMG]

https://www.youtube.com/watch?v=B_WOWyN5_x0
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Old 06-29-2016, 01:43 PM
  #1196  
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Some old video of elevator testing.

https://www.youtube.com/watch?v=T6zOC_FqfAc
Old 06-30-2016, 03:57 PM
  #1197  
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My Ziroli P38 having its first construction inspection as required by Model flight New Zealand and NZ Civil Aviation Authority.

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Old 07-03-2016, 06:12 AM
  #1198  
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Originally Posted by flyingpiggy
My Ziroli P38 having its first construction inspection as required by Model flight New Zealand and NZ Civil Aviation Authority.

[ATTACH]2170533[/IMG][ATTACH]2170534[/IMG][ATTACH]2170535[/IMG]

Those type rules are coming here I fear. What is involved in a inspection?
Old 07-08-2016, 01:17 PM
  #1199  
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Default Yellow P-38 Project Update

Hey Gang,

Wanted to share some pics of my YA P-38 project. Scott Raines of SCR Models is assembling this for me and is doing STELLAR work. I did find counter-rotating props from Xoar in both 20 x 10 and 22 x 8. Check out the panel lines and rivets, also trim tabs have been cut out and reattached for scale appearance.

This is will be my 6th '38, and first I haven't built myself and first with counter blowing fans. All the others torqued hard left on takeoff roll - it will be interesting to see how this beast accelerates. My goal was to create a scale bird to fly at special events.

Scott says he'll be done in 2 weeks. Then I bring her up to NORCAL for programming, CG, and systems integration. Can't wait!





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Old 07-10-2016, 10:40 AM
  #1200  
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Nice!

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