Comet P-40 Build - Page 2

scigs30 · Oct 08, 2009, 01:05 AM

Had some more spare time tonight to work on my airplane. I added 1/32 sheet where the bond paper was supposed to go and used soft 1/16 wood for the nose. The wood does not add much weight, the fuselage now weighs 4.2 grams. This would be a great flyer right out of the box. Still have to add the exhaust and nose block and build the wing and tail surfaces and off to covering.

racedouge1 · Oct 08, 2009, 01:18 AM

A picture is worth a thousand words, you've got skills

douge

kevin matthews · Oct 08, 2009, 02:31 AM

You almost have to cover the way you do, scigs, with the way the sides are constructed. The nose looks great with all the planking, a good place to add clay if needed.

Kev

scigs30 · Oct 08, 2009, 05:13 PM

The fuselage is done minus some fine sanding up in the nose area and scalping of some of the formers. The final weight is just over 6 grams.

tune by tito · Oct 08, 2009, 05:33 PM

Nice Work you have done, Amazing.
Best regards Tito

kevin matthews · Oct 08, 2009, 06:30 PM

It looks real clean.

scigs30 · Oct 08, 2009, 07:12 PM

That would be the Elmers glue.

hklam · Oct 09, 2009, 12:53 AM

Scigs30,

Excellent work and weight too for the P40. How did you do the balsa cone spinner? care to elaborate?

I am currently still working on my P51 peanut scale, and currently stuck at the nose spinner section.

hklam

scigs30 · Oct 09, 2009, 01:19 AM

Believe it or not, I have not carved my own spinner since I was about 14. I just start with a soft square block, carve to rough shape with my X-Acto knife. Then I sand with my sanding block until it is the right shape.

salat · Oct 09, 2009, 10:22 AM

here plan and templates of this plane on my site in case someone iterested:
http://academodel.ru/plans/comet/P-4...er%20Shark.pdf

scigs30, what wood you used for fuselage? I'm building WestWings Spitfire of about same size, but wood seems bit heavy, it is over 5g already and that without any planking..
Thanks,
Kostya

scigs30 · Oct 09, 2009, 12:32 PM

I use C grain 4-6lb from Easy Built for the formers and keels, great stuff. For the 1/16sq. I use Midwest balsa.

kittyfritters · Oct 09, 2009, 12:49 PM

Quote:

Originally Posted by scigs30

Believe it or not, I have not carved my own spinner since I was about 14. I just start with a soft square block, carve to rough shape with my X-Acto knife. Then I sand with my sanding block until it is the right shape.

I start with a soft square block, locate the center on the back end, carve to rough shape, screw a mandrel for my Dremel tool into the center, chuck it up in the Dremel, and using a sanding block refine the shape of the spinner with the tool turning at moderate speed. The whole process takes a few minutes. Then all you have to do is hollow out the spinner. Sometimes I glue a circle of 1/64" plywood on the back of the spinner if the balsa is particularly soft.

kevin matthews · Oct 09, 2009, 01:40 PM

I'm glad you told what kind of wood you use for formers and keels scigs. My small Hellcat, 16 1/2" wing-span keels and formers are made from A/B grain 4 to 6 lbs. It flys, I don't know how long it will keep it's shape, it seems strong enough to last.

logair8452 · Oct 19, 2009, 12:10 AM

That old Comet kit brings back memories. I bought one for 25 cents when in the 7th grade ,took it to school set on the window ledge and stared at it all day. I did not try flying it just to look at. 20 years ago I bought another Comet P-40 it still sets in it's rightfull place on the bookshelve. Will try to post a picture if I can. Logair

scigs30 · Oct 21, 2009, 05:15 PM

Logair, You P40 looks great. Thanks for sharing.
Well today I finished with all the building, just have to order some green Esaki tissue. The weight is just over 14 grams as shown. The Guillows P40 next to it is 27 grams and it does fly. The landing gear will be permanent and not as shown in the pictures, that is why it is a little crooked.

Oct 19, 2009, 12:10 AM	#29
logair8452 Registered User Join Date: Jan 2009 Posts: 4	Comet P-40 That old Comet kit brings back memories. I bought one for 25 cents when in the 7th grade ,took it to school set on the window ledge and stared at it all day. I did not try flying it just to look at. 20 years ago I bought another Comet P-40 it still sets in it's rightfull place on the bookshelve. Will try to post a picture if I can. Logair Attached Thumbnails Comet P-40 116.4 KB · Views: 104

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Oct 08, 2009, 01:05 AM	#16
scigs30 Registered User Join Date: May 2005 Posts: 135	Had some more spare time tonight to work on my airplane. I added 1/32 sheet where the bond paper was supposed to go and used soft 1/16 wood for the nose. The wood does not add much weight, the fuselage now weighs 4.2 grams. This would be a great flyer right out of the box. Still have to add the exhaust and nose block and build the wing and tail surfaces and off to covering.

Oct 08, 2009, 01:18 AM	#17
racedouge1 races cars,crashes planes Join Date: Feb 2006 Location: Littleton,Co. Posts: 189	A picture is worth a thousand words, you've got skills douge

Oct 08, 2009, 02:31 AM	#18
kevin matthews Registered User Join Date: Jan 2007 Location: carbondale il Posts: 1,467	You almost have to cover the way you do, scigs, with the way the sides are constructed. The nose looks great with all the planking, a good place to add clay if needed. Kev

Oct 08, 2009, 05:13 PM	#19
scigs30 Registered User Join Date: May 2005 Posts: 135	The fuselage is done minus some fine sanding up in the nose area and scalping of some of the formers. The final weight is just over 6 grams.

Oct 08, 2009, 05:33 PM	#20
tune by tito Inventor&Genius Extraordinary Join Date: May 2006 Location: Rowland Heights Posts: 280	Nice Work you have done, Amazing. Best regards Tito

Oct 08, 2009, 06:30 PM	#21
kevin matthews Registered User Join Date: Jan 2007 Location: carbondale il Posts: 1,467	It looks real clean.

Oct 08, 2009, 07:12 PM	#22
scigs30 Registered User Join Date: May 2005 Posts: 135	That would be the Elmers glue.

Oct 09, 2009, 12:53 AM	#23
hklam Registered User Join Date: Jul 2005 Posts: 536	Scigs30, Excellent work and weight too for the P40. How did you do the balsa cone spinner? care to elaborate? I am currently still working on my P51 peanut scale, and currently stuck at the nose spinner section. hklam

Oct 09, 2009, 01:19 AM	#24
scigs30 Registered User Join Date: May 2005 Posts: 135	Believe it or not, I have not carved my own spinner since I was about 14. I just start with a soft square block, carve to rough shape with my X-Acto knife. Then I sand with my sanding block until it is the right shape.

Oct 09, 2009, 10:22 AM	#25
salat Trying To Takeoff Join Date: Dec 2006 Location: Novosibirsk, Siberia Posts: 2,398	here plan and templates of this plane on my site in case someone iterested: http://academodel.ru/plans/comet/P-4...er%20Shark.pdf scigs30, what wood you used for fuselage? I'm building WestWings Spitfire of about same size, but wood seems bit heavy, it is over 5g already and that without any planking.. Thanks, Kostya

Oct 09, 2009, 12:32 PM	#26
scigs30 Registered User Join Date: May 2005 Posts: 135	I use C grain 4-6lb from Easy Built for the formers and keels, great stuff. For the 1/16sq. I use Midwest balsa.

Oct 09, 2009, 01:40 PM	#28
kevin matthews Registered User Join Date: Jan 2007 Location: carbondale il Posts: 1,467	I'm glad you told what kind of wood you use for formers and keels scigs. My small Hellcat, 16 1/2" wing-span keels and formers are made from A/B grain 4 to 6 lbs. It flys, I don't know how long it will keep it's shape, it seems strong enough to last.

Oct 21, 2009, 05:15 PM	#30
scigs30 Registered User Join Date: May 2005 Posts: 135	Logair, You P40 looks great. Thanks for sharing. Well today I finished with all the building, just have to order some green Esaki tissue. The weight is just over 14 grams as shown. The Guillows P40 next to it is 27 grams and it does fly. The landing gear will be permanent and not as shown in the pictures, that is why it is a little crooked.