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P-40 Warhawk


Kelly
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  • 4 weeks later...

The New year is almost here.

Time to get building.

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010014-6.jpg

Very good instruction book plus some extra info from the web on the Saito,my first four stroke ever and second IC engine in 30 years.

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010011.jpg

The Saito.

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010012.jpg

Spinner painted red.

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010013.jpg

The bits box.

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010016-5.jpg

The P-40E Warhawk ( forgot to include canopy and pilot in the picture).

Happy New year

Kelvin. 

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  • 2 weeks later...
  • 3 weeks later...

Made a start tonight on the P-40

Went through all the bits and found some  wrinkles on the wing tips, sorted them out with the iron,apart from the wrinkles the build quality and covering is very good.

 Wing tip wrinkle  

 

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010016-8.jpg

 Sorted 

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010017-6.jpg

more soon

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  • 2 weeks later...

Hi Peter

Sorry for the late reply trouble and strife on the home front , SC 46 fitted to my Boomerang (not flown yet).

The B-25 looks good , all the electrickery talk between you and Timbo has given me a headache..

I must gen up on the electrical side of things.

Cheers

Kelvin 

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  • 3 weeks later...

Well started the P-40 tonight .

Following the instuctions, first job is to join the two  wing panels

Wing joiner

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010013-4.jpg

Centre line marked

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010014-10.jpg

Leadin edge wing retaining dowels.

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010015-9.jpg

Dowels glued in place with epoxy.

 Dry run to test how well the wings fit together,  wing joiner a nice tight  fit with no gaps between the root ribs.

 

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010016-9.jpg

The slight gap is because the wings are not supported whilst taking the picture.

Bit late to epoxy up tonight more tommorrow.

I know all this is a bit obvious, but I hope people who are new to the hobby will find this blog useful and realise  the ARTF still needs quite a bit or work and care to achieve a good flying model .

Kelvin.

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Joining of the wing halves.

Fitting the wing joiner using pins to keep it nice and true.

http://i217.photobucket.com/albums/cc2/kelly2uk/6.jpg

Plenty of 30 minute epoxy on the wing joiner and both the root  wing ribs/cavity.

This is the fun and messy part as the epoxy oozes  out of the join  like something out of a 50's si-fi B movie.

I used a small clamp, the wing dowels and pair of bolts fitted in the wing bolt holes with rubber bands looped round  to help in keeping the the wing true as the epoxy cures.

http://i217.photobucket.com/albums/cc2/kelly2uk/7.jpg

and a few strips of masking tape.

Cleaned off the excess epoxy with paper towel and rubbing alcohol, horrible job.

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Hi Kevin,

Re-gluing wing halves together.

Try putting masking tape on the surfaces to be glued and joined.

Smear Vaseline on the wing surfaces where the overspill will be.

Remove the masking tape and apply the glue.

Fit the two wing halves together and support as you wish.

When dry the excess glue should now come off without any trace on the finished surfaces.

Works for me Kevin.

Regards,

Arthur

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Hi David,

Thanks for the info,good review on the Saito125 in a rival magazine. Regards running in what oil would you recommend to prep the engine before first running?

Hi Arthur,

Will give it a go when fitting the tailplane,cheers.

Fitted the wing bolt plate.

http://i217.photobucket.com/albums/cc2/kelly2uk/7-1.jpg

Drilled the holes for the bolts.

http://i217.photobucket.com/albums/cc2/kelly2uk/9.jpg

I use a low watt soldering iron to remove the covering prior to glueing the plate. This prevents damage when using a knife to the wood underneath possibly weakening the structure.

Next came the blind nuts for the wing bolts, I used a wing bolt  with oversize nuts for packing and a washer to pull the nuts in place .

http://i217.photobucket.com/albums/cc2/kelly2uk/10.jpg

http://i217.photobucket.com/albums/cc2/kelly2uk/11.jpg

Fusalege with wings attached.

http://i217.photobucket.com/albums/cc2/kelly2uk/12.jpg

Sorry about the double image, camera on the  wrong setting .

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Fitting the horizontal tailplane.

Test fit ,mark with a felt tip pen.

http://i217.photobucket.com/albums/cc2/kelly2uk/15a.jpg

Remove the covering  top and bottom ( I use a low watt soldering iron).

http://i217.photobucket.com/albums/cc2/kelly2uk/16a.jpg

Apply epoxy to the exposed area top and bottom.

Elevator joiner in place .

http://i217.photobucket.com/albums/cc2/kelly2uk/17.jpg

Slide the tailplane back into position, check the fit  and the alignment.

http://i217.photobucket.com/albums/cc2/kelly2uk/20.jpg

http://i217.photobucket.com/albums/cc2/kelly2uk/18.jpg

Strips of tape are to prevent any epoxy finger marks,made quite a neat job this time.

Apologies for the slow progress,   build time is limited at the moment (late night only)

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 Hi David,

The build quality is in my opinion is excellent.

The wings fitted together perfect .

The tail is spot on,no need for sanding etc to get it all squared up.

May pin the control surface hinges just to make sure.

The covering is wrinkle free, apart from the wing tips.  It is well stuck down on the leading edges of the wings and very neat .

The only thing not very good is me with my epoxy fingers and cyno runs aaaargh .

Elevators and rudder next on the to do list. 

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Attaching the elevator and rudder.

Pins are used to centre the hinges.

 

http://i217.photobucket.com/albums/cc2/kelly2uk/26.jpg

The two halves of the  elevator are joined with a wire joiner using epoxy to glue into position.

 

http://i217.photobucket.com/albums/cc2/kelly2uk/27.jpg

http://i217.photobucket.com/albums/cc2/kelly2uk/28.jpg

The hinges are secured with thin CA

http://i217.photobucket.com/albums/cc2/kelly2uk/29.jpg

The tailwheel is fixed into the rudder with epoxy.

 

http://i217.photobucket.com/albums/cc2/kelly2uk/30.jpg

The rudder is attached using thin CA .

http://i217.photobucket.com/albums/cc2/kelly2uk/31.jpg

The tailwheel bracket is  fixed into place with two screws.

http://i217.photobucket.com/albums/cc2/kelly2uk/32.jpg

Debonder will remove bad CA runs without marking the finish on the covering.

Nail varnish remover will work along with the debonder to leave the surface nice and shiny  .

Been a bit  messy with this mode l.

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Retract  servo and linkage installation.

The mechanical retracts are already fitted in the wings all that is needed is to install the retract servo and connect the linkages.

Servo tray bay in the wing centre section

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010012-3.jpg

 The servo bay needed a bit of dremelling to remove the epoxy overspill.

The mounts straddle the centre section rib and rest flush to the wing sheeting on the inside of the wing

Servo tray glued  to the mounts with epoxy.

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010010-1.jpg

Servo tray in place.

http://i217.photobucket.com/albums/cc2/kelly2uk/P1010013-5.jpg

Servo arm is drilled out to accept the quick connectors.

The control wires are trimmed and passed through the quick connectors .

3mm set screws with a little thread lock are used to secure the retract linkages

Servo in place with the retract control wires in place.

http://i217.photobucket.com/albums/cc2/kelly2uk/41.jpg

Wheels are fitted with wheel collers and thread locked grub screws 

Wheels fitted.

http://i217.photobucket.com/albums/cc2/kelly2uk/42.jpg

Short video of retacts in operation.

[IMG]http://i217.photobucket.com/albums/cc2/kelly2uk/th_P1010008-1.jpg[/IMG][/URL][/p][p]They rotate through 90 degrees as per the full size P-40 [img]http://www.modelflying.co.uk/forum/smilies/smile_smiley.gif[/img].[/p

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