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Tony Nijhuis Harvard - Build Log

Electric powered

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Geoff Gardiner25/06/2019 13:02:23
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371 forum posts
646 photos

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More later...

Mike Pertwee02/07/2019 19:03:49
4 forum posts

Hi,

I bought one of these models at Wings & Wheels last weekend. An impulse purchase! No engine and no plans.

I would really appreciate information on C of G position and suggested control throws from anyone who has built and/or flies one of these Harvards.

This thread shows wonderful build photos way above my standard. I hope the one I have bought was as carefully built!

Regards Mike

Denis Watkins02/07/2019 21:45:42
3800 forum posts
52 photos

Mike, the C of G is shown in the 1st photo, of page 1 of this thread

Mike Pertwee02/07/2019 22:08:04
4 forum posts

Well spotted, Denis! Thank you. Most helpful. Mike

Mike Pertwee02/07/2019 22:16:24
4 forum posts

Denis,

Will search other photos on thread showing any of the plan for any control throw info.

I do fly a smaller Flair Harvard so can probably estimate reasonable throws from that model.

Mike

Geoff Gardiner02/07/2019 23:04:30
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371 forum posts
646 photos

Hi Mike.

Thanks for the comments.

The movements Tony suggests are as follows:

Elevator - 12mm

Aileron - 12mm

Rudder - 25mm

CofG 100mm from L.E. at wing outer root

Geoff Gardiner02/07/2019 23:28:22
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371 forum posts
646 photos

Nearly done with the painting.

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Now the cowl is mounted I can paint the green camo.

More later...

Martian03/07/2019 20:13:39
2213 forum posts
1085 photos

brilliant stuff Geoff

Tom Sharp 203/07/2019 20:19:14
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3458 forum posts
17 photos

I just love that rotary

Mike Pertwee03/07/2019 20:32:01
4 forum posts

Thanks for info, Geoff.

Sorting out the servos and engine fitting now, but great to have the information I will need a bit later.

Great photos again. She looks far too good to risk flying her!

Regards Mike

Outrunner03/07/2019 22:04:31
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35 forum posts
2 photos
Posted by Tom Sharp 2 on 03/07/2019 20:19:14:

I just love that rotary

Rotary?!! In a Harvard! Maybe a radial.

Phil.

Geoff Gardiner31/07/2019 17:55:57
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371 forum posts
646 photos

Got a little bit sidetracked with building myself a laser/CNC cutter.

Back on the Harvard now.

Installed the elevator and rudder servos.

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Made some control horns using the new CNC cutter.

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More later...

Geoff Gardiner04/08/2019 22:43:24
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371 forum posts
646 photos

Started fitting out the cockpit:

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More later...

Douglas Groutage06/08/2019 17:05:16
3 forum posts

Geoff, please don't stop. I've bought the cnc kit just a few weeks ago, your build log and build is stupendous: its really helping this newbie out.

Have you maidened it?

If you were to do it again, what would you do different?

Do you want to sell/give away your 3D parts? Love the radial!

Thanks for creating this log.

Doug

Broken Prop07/08/2019 10:27:18
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591 forum posts
1 photos

Amazing work Geoff. Can't wait to see it fly!

Pete

Geoff Gardiner14/08/2019 15:43:58
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371 forum posts
646 photos

Hi Doug.

Thanks for your kind words. I also follow others builds and am always learning.

Not quite ready for the maiden yet.

I'm happy with the build so far - will see how/if it flies!

Are you going to do a build log of yours?

I could probably sell you some of the parts - which bits are you after?

Geoff...

Douglas Groutage15/08/2019 18:23:31
3 forum posts

I have a thread started on RCGROUPS

Sorry...devil

At the moment I am in a bit of a quandry. I really want to make a full length canopy hatch, from F2 to F5.

A thin ply platform with the Top of F3 removed and added to the platform along with the longerons between F3 and F2. The platform would sit on the longerons between F3 and F5 (and I would extend this longeron to F2).

The canopy would be attached to this platform. Magnets on the back to hold in position, two small dowels for the front at F2.

Pilots, scale details to be added to the platform etc...yes this would add weight...I really just want improved battery access and cleaner hatch.

So my concern - would cutting the top of F3 reduce any torsional or torque strength from the fuselage, or is F3 just for maintaining the shape?

What do you think?

I was keenly interested in the engine stl files, I can have them printed here - our local libraries have 3d printers. I might have to do one piece a night for a few nights but that's ok. Or I can buy pre-printed. I do have the vacuum piece from Tony, but your's is pretty sweet.

Doug

Geoff Gardiner15/08/2019 20:52:34
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371 forum posts
646 photos

Few more pics from today:

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More later...

Geoff Gardiner20/08/2019 19:15:24
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371 forum posts
646 photos

Sorted out the Aileron and flap linkages and fitted the retracts:

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The lighting changed between shots hence the yellow looks different colours.

More later...

Nik Harrison21/08/2019 19:59:31
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75 forum posts
128 photos

Geoff,

Very impressed with the build, well done. I'm most intrigued by your excellent painted roundels. Would you care to explain the process involved?

Nik

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