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P-38 Lightning-Roddie style..

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Re: P-38 Lightning-Roddie style..

Post  Oldenginerod on Sun Apr 15, 2018 9:34 pm

Don't rush it Roddie just because of the membership thing. Fly when you're prepared, not just because of a certain date. If you feel you really need to fly, do so with a plane you don't love so much. Sounds like you have a few options. You've put a lot of effort into the Lightning. Don't hurry & spoil things.
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Re: P-38 Lightning-Roddie style..

Post  Cribbs74 on Sun Apr 15, 2018 9:57 pm

Remove the rubber engine mounts. Engines need to be mounted solid or they will vibrate like crazy and cause really crappy runs.

Looks like you are almost there. Is this going to result in some actual air time? Wink
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Re: P-38 Lightning-Roddie style..

Post  NEW222 on Sun Apr 15, 2018 10:17 pm

Looking very good there with the progress. Somehow I have missed this thread for a bit. However just a note for next time. I just cleaned up a product engine with horseshoe backplate last week. I already knew not to put plastic parts in the crock pot, so instead, I opted to put all my plastic bits into a baby food jar with some nitro fuel. I left them overnight and used a toothbrush on them in the morning, and everything came off very easily with no effort. Just throwing out another option.
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Re: P-38 Lightning-Roddie style..

Post  getback on Mon Apr 16, 2018 9:04 am

Cribbs74 wrote:Remove the rubber engine mounts. Engines need to be mounted solid or they will vibrate like crazy and cause really crappy runs.

Looks like you are almost there. Is this going to result in some actual air time? Wink
I was wondering about that same thing ,, Roddie just glass the holes over with some CA will work fine . As was said get something in the air before trying to fly the twin will give you some handle time you haven't had in a LOOONG time . The bird is looking good ! Beer Cheers
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Re: P-38 Lightning-Roddie style..

Post  roddie on Wed Apr 18, 2018 11:24 am

Ken Cook wrote:Your really overthinking this. Add more tip weight. 3/4 oz. to start and retract as needed.

Yes.. unfortunately it's my nature. I wasn't planning to apply any outboard tip-weight.. because of the control-system hardware being located on the "outboard" wing-panel.. and the elevator-pushrod running down the inside of the outboard tail-boom. I suppose I should "play it safe".. and add some tip-weight.

A while back, I bought a package of "Pine-car" weights. Four individual segments weighs .25oz. (approx. 8gr.) which would seem more than enough for a model of this size; given the weight-offset of the pushrod.



Post-paint weight currently is just under 5oz.



This means I sprayed almost .8oz. of paint (primer/base-color) on the model thus far. Below is the pre-paint weight..



This would put the model currently at around 10oz. "LESS" trim-accents and clear-coat/fuel-proofing.
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Re: P-38 Lightning-Roddie style..

Post  roddie on Wed Apr 18, 2018 12:28 pm

Oldenginerod wrote:Don't rush it Roddie just because of the membership thing.  Fly when you're prepared, not just because of a certain date.  If you feel you really need to fly, do so with a plane you don't love so much.  Sounds like you have a few options.  You've put a lot of effort into the Lightning.  Don't hurry & spoil things.

That's good advice Rod. I didn't plan on flying this model until I have some airtime on something that I know will fly.. without being a handful.
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Re: P-38 Lightning-Roddie style..

Post  roddie on Wed Apr 18, 2018 12:40 pm

Cribbs74 wrote:Remove the rubber engine mounts. Engines need to be mounted solid or they will vibrate like crazy and cause really crappy runs.

Looks like you are almost there. Is this going to result in some actual air time? Wink

Hi Ron, I'll heed your advice regarding the sheet-rubber covering the firewalls. It was done in "haste" one night. I hope to fly this airplane soon.. but not until I've flown something more familiar. It's been a while...
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Re: P-38 Lightning-Roddie style..

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