By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by CML

Tony Nijhuis Harvard

All Topics | Latest Posts

Search for:  in Thread Title in  
Richard scarborough21/01/2013 03:02:51
46 forum posts
41 photos

Is anybody building the Tony Nijhuis designed Harvard?

I would be interested to read your thoughts on the build. Mine is almost complete, colour scheme being New Zealand AirForce.

Where can I find 3-1/4" wheels that are no wider than 1"?

GrahamC21/01/2013 14:47:48
avatar
1229 forum posts
196 photos

I found them at hobbyking for my Spitfire. Looking quickly these are 80mm diameter as opposed to 82.5 - so close on diameter and only 22mm fat. It's odd you have to buy them in threes?! But they are cheap enough! -

Or these are just over an inch fat.

Danny Fenton21/01/2013 16:26:54
avatar
9093 forum posts
3937 photos

Hi Richard, You going to let us see some build piccies wink 2

On My TN Spitfire build I took those same wheels that Graham has pointed to in his first link, popped the hubs apart, removed a bit of wheel, slimmed the tyre and glued it all back together again smile Worked a treat.

Cheers

Danny

Richard scarborough22/01/2013 09:40:41
46 forum posts
41 photos

Thanks to GrahamC & Danny Fenton for info about the wheels.

I tried to upload some photos today, but to no avail. Will try again tomorrow.

Richard scarborough23/01/2013 01:38:33
46 forum posts
41 photos

Here are a few pics of my Harvard. I had to use my FlyCam to take them, hence the poor quality. Centre section of wing will be covered when I get the wheels and am sure nothing needs modifying. pict0006.jpg pict0005.jpg pict0004.jpg

Terry Walters23/01/2013 08:11:23
avatar
1831 forum posts
1068 photos

Very nice looking aeroplane Richard. Looks the business!

Terry

Dale Gibson23/01/2013 16:32:37
avatar
123 forum posts
26 photos

Wow your Harvard looks great Richard....how did you find the build?

Dale

Ton van Munsteren23/01/2013 21:56:18
avatar
1279 forum posts
3301 photos

Woooo that looks really nice, well doneyes.

Ton

Richard scarborough24/01/2013 09:19:37
46 forum posts
41 photos

Thanks for the kind words, gents. Building the model is not as challenging as it first appeared to be,Tony's article in the magazine is a very good set of instructions and the plan itself is accurate.

There are some photos on Tony's website that show what each part of the build should look like. I didn't find these until I had built the fin, stab, and half the fuselage, but was relieved to see things looked the same. The only changes I have made are concave fillets where fin and stab blend into the fuse. I used 2.0mm balsa instead of 2.4mm for sheeting the wing.

One area to watch is where the canopy fits as there is very little material you can trim off if using the vac-formed one from Tony Nijhuis Designs. Adding 6mm to the top of the fuse sides worked ok.

Power for the model will be from a 6s LiPo battery via 75 amp ESC, O.S. 5020-490 brushless motor and 14"x7" prop.

howie25/01/2013 01:48:16
avatar
6 forum posts
4 photos

Your Harvard is skillfully finished. Where did you get the dummy radial engine from?

How did you detail the cockpit so well. I mean what did you use to make the lines on it?

Cheers Howie

Richard scarborough25/01/2013 02:23:21
46 forum posts
41 photos

Hi Howie, The dummy engine, cowl and canopy are from Tony Nijhuis Designs. The lines on the canopy are cut from SOLARTRIM and stuck on the outside. Hope they stay there. Detailing inside will be time consuming - 2 pilots, 2 instrument panels but it must be done. Canopy will have to be removeable for battery access so it and everything inside will lift off as one unit.

Cheers Richard

lightning 75908/02/2013 07:59:51
avatar
148 forum posts
10 photos

Hi Richard

did you go with a pre cut kit or did you cut them yourself ? will we get to see her at barkston ?

i went & bought plans for a ziroli one then this came out ,thinking of doing this one first as cost is a

lot more friendly for me at presant .

Andy

Richard scarborough08/02/2013 09:40:11
46 forum posts
41 photos

Hi Andy

I cut all the bits&pieces myself, never needed laser cutting in the past, still don't. I didn't write down how much the balsa & ply cost but I am sure it was less than the pre cut parts. All the ribs in the tail sufaces were cut from scrap left over from AstroHog wing ribs. As for the fuse, there are not all that many parts anyway. I certainly would encourage anyone to have a go at this model, it's an enjoyable build. Just keep the tail light!

Barkston may be a bit tricky, I live in Australia. Hope to post flying photos before too long.

Cheers Richard

lightning 75908/02/2013 15:52:01
avatar
148 forum posts
10 photos
Posted by Richard scarborough on 08/02/2013 09:40:11:

Hi Andy

I cut all the bits&pieces myself, never needed laser cutting in the past, still don't. I didn't write down how much the balsa & ply cost but I am sure it was less than the pre cut parts. All the ribs in the tail sufaces were cut from scrap left over from AstroHog wing ribs. As for the fuse, there are not all that many parts anyway. I certainly would encourage anyone to have a go at this model, it's an enjoyable build. Just keep the tail light!

Barkston may be a bit tricky, I live in Australia. Hope to post flying photos before too long.

Cheers Richard

Hi Richard

very sorry i know a Richard Scarborough over here who is well known on the rc warbird front , mistaken identity very sorry, your harved looks great though

andy

Richard scarborough01/03/2013 07:49:04
46 forum posts
41 photos

Never mind the mistaken identity Andy, I suppose it was bound to occur sooner or later.

Harvard is close to maiden flight. I decided not to use the O.S motor (would have meant borrowing it from my AstroHog) instead I fitted a Turnigy G60 & 80 amp esc. Today I connected the watt meter and the results are- peak watts-1277 peak amps-54.3 rpm-10000. Pulling throttle back to 8000 rpm draws 25 amps- 560 watt. After 6 1/2 minutes, at varying throttle settings, reading was 1000 watts @ 46 amps WOT. These figures were obtained with a 14x7 prop and Turnigy 5000mah-6s 20c battery. Following this little test, battery took 3300 ma to recharge.

100_0580.jpg

Ruprect Spode01/03/2013 09:02:36
avatar
123 forum posts
7 photos

A lovely example Richard, who would have thought 30 years ago you'd get a respectable 7 minutes flying from an electric setup on something that big. Looking forward to your maiden report.

Ruprect

GrahamC01/03/2013 09:05:29
avatar
1229 forum posts
196 photos

Looking very good that.

As a mater of interest, which KV rating of G60 are you using? I'm popping one in a puppeteer at present, and was interested in your figures.

Richard scarborough01/03/2013 10:28:45
46 forum posts
41 photos

It is the 500KV G60. ESC is the Turnigy Plush 80 amp. I have been using 60 amp version of this esc in other models without any problems at all. The built in BEC is rated at 3 amp, which is probably why Turnigy recommend driving no more than 4 servos from it. I am using a 2 cell LiFe battery for flaps& retracts in the Harvard.

GrahamC01/03/2013 17:54:52
avatar
1229 forum posts
196 photos

Well four servos will be fine for the Puppeteer! - Thanks - I've gone for the 300Kv one - thinking that it is way more than the Puppeteer will need but should drive a prop that looks large enough, and the extra weight will do no harm and help with the CofG.

I'll have a good look at that ESC.

Dale Gibson01/03/2013 17:59:46
avatar
123 forum posts
26 photos

Looks fantastic Richard, good luck with the maiden and don't forget your camera thumbs up

As soon as I think my building skills are up to the job I'm going for this, I just love the Harvard / AT 6

Dale.

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of RCM&E? Use our magazine locator link to find your nearest stockist!

Find RCM&E! 

Latest Forum Posts
Support Our Partners
Gliders Distribution
Pepe Aircraft
electricwingman 2017
Addlestone Models
Cambridge Gliding Club
Slec
CML
Wings & Wheels 2019
Sarik
Advertise With Us
Latest "For Sale" Ads
New Poll - Sticky situations...
Q: How often - when using superglue - do you end up with it on your fingers?

 Every time
 Occasionally
 Sometimes
 Rarely
 Never
 Wear rubber gloves

Latest Reviews
Digital Back Issues

RCM&E Digital Back Issues

Contact us

Contact us