Author Topic: Aermacchi PSS project  (Read 70679 times)

joe

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Aermacchi PSS project
« on: September 03, 2008, 15:35:48 PM »
Hiya all just thought I'd share a project I have been working on and hope to get finished soon.
Aermacchi MB339 PSS. Span 1.625metre(64 inch)
Fiberglass fuse. Foam veneered wings.
I did the fuse layup a couple of months ago and finally got round to cutting the wings last night. Will take a bit of testing with the fuse layup to get the right compromise between weigh and strength and also the wing profile to see what is going to work best. Will finish this off over the next month or two whenever I'm at home and will keep you posted of my progress.
 










Fred

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« Reply #1 on: September 03, 2008, 15:42:35 PM »
:clap:  :clap:  Looking really good Joe !

Where is mine ?  :mrgreen:  :mrgreen:
Education is important, but flying RC planes and gliders is importanter!

joe

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« Reply #2 on: September 03, 2008, 15:48:52 PM »
Your next on the list of course Fred. Make a foam cutting machine an I'll make you a fuse!! :lol: Deal??

Fred

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« Reply #3 on: September 03, 2008, 15:55:43 PM »
You're not a good friend...  :cry:
Education is important, but flying RC planes and gliders is importanter!

joe

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« Reply #4 on: September 03, 2008, 16:05:32 PM »
Ah OK then you can have one,  even if you don't make a CNC foam cutting machine. Am only trying to motivate you. You could even have this one once it flies a few times. Will make a second test model once this is done for sure.
Yeah! think it looks really good too. Looking forward to getting it in the air!  :D

Fred

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« Reply #5 on: September 03, 2008, 16:08:03 PM »
Alright so.. Just need to clean my workshop for the machine !
I don't even have space to build my next project !  :shock:
But getting there.. 3 green bin full already !  :D
Education is important, but flying RC planes and gliders is importanter!

Peter

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« Reply #6 on: September 03, 2008, 22:53:57 PM »
Looks great Joe.  Very nice fuselage.  Looking forward to seing his one fly.

joe

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« Reply #7 on: April 15, 2009, 01:28:04 AM »
Finally flown this.
Very small video clip. Sorry for the poor quality was taken on a digital still camera. Had no video camera unfortunately.
More info tomorrow. Just to say, it fly really well. Very happy :lol:  :lol:

[youtube]http://www.dailymotion.com/swf/x8zep7[/youtube]


Fred

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« Reply #8 on: April 15, 2009, 07:31:12 AM »
:shock:  Very good Joe !  :clap:  :clap:
Looks great in flight ! And me like the music  :D

I want one !  :D

I'll bring the camera next time we fly!
Just enough time to do a nice colour scheme!  :P

Congrats again on the maiden!
Education is important, but flying RC planes and gliders is importanter!

Happy Days

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« Reply #9 on: April 15, 2009, 09:33:34 AM »
Yeah, good sound track, (Alice Cooper if I remember right) shame about the video. Sack the camera man!
Try not to run out of airspeed, altitude and ideas....... all at the same time.

Alan_Perse

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« Reply #10 on: April 15, 2009, 12:32:39 PM »
Great job Joe  :clap:  :clap: . Looks great.
Did you make the fuelage using the lost foam method?

joe

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« Reply #11 on: April 15, 2009, 13:15:38 PM »
Hiya Alan. I have a mold for the fuse.

So here's a bit more info.

Span 1.5 metres /59 inches
Weight 1.8 Kg / 63 ounces
Wing loading 15 oz/sq.ft

So that first flight was in medium lift at the smallish coastal site down the road from me. Bit nervous but didn't need to be in the end.

Very stable flyer. Lots of dihedral to help here. No problem flying in this lift so I think it will go OK in less too. Got a good turn of pace and is very happy in tight turns. Bank and crank is no problem! No stalling out of turns or nasty behavior. Takes a good bit to stall it and after holding it at a high angle of attack in eventually tip stalled. Need to check the balance etc as I might be able to improve this.
Rolls are a scale like. I'm sure they can be speeded up with a few adjustment.
Overall it flies great. Me very happy. :D  :D

IceWind

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« Reply #12 on: April 15, 2009, 15:03:52 PM »
Great video and great music!
That seem like pure fun.
Now it just need a paint job to match.

That spot also seems great to fly.
..Nando

joe

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« Reply #13 on: April 15, 2009, 18:08:22 PM »
The video had a kinda 70s look to me so I added some 70s ROCK!!!!!!

Here are some potential schemes









Alan_Perse

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« Reply #14 on: April 15, 2009, 20:08:36 PM »
Well if you use the camouflage colour schemes you might find it hard to find when you land  :P  :P . But I think they all look good.