Boeing B50- The largest electric Model ever!

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Tony Nijhuis 2280
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Boeing B50- The largest electric Model ever!

Postby Tony Nijhuis 2280 » February 8th, 2009, 10:08 pm

Guys,

Thought it time to post a new thread.....

This model has been 4-years in the making although I would say more off than on...but in the last four months I've been making a real effort to crack this one and get her ready for this year's LMA season. As you can see from the pictures she not finshed (colour wise) but all rigged up and ready for the final inspection.

The B-50 is a variant of the B-29 Super fortress and was one of the last great piston engined bombers of the 20th Centry extending operations well into the 1970s

The model has a span approaching 19' and the AUW is 75lbs so far.
Each electric motor gererated 3kW of power so 12kW in total will be availiable from a payload of up to 144 nimh cells (Yes a model of this size still suits the Nimh)

All the retracts, oleo legs and wheels, are bespoke (thanks to Keith Unwin of the Hastings Club)

As with my 12' Lancaster, the B-50 will have an on-board engine sound syste. Thomas Benedini has mixed a 4-engined Pratt & Whittney true sound and it sounds superb....The sound will be amplifier by two 200watt power amplifier driving six 50-watt so some serious but true scale noise will be heard.

Not sure if this is the largest electric model but scanning the internet I cant find another larger (or person silly enough to do this)

Happy days

Tony :D
Attachments
b50-2.jpg
You can just see one of the 50watt speaker in the outer nacelle
b50-1.jpg
One of the 3kW out runner motors driving a 22x11 prop
b50-1.jpg (22.59 KiB) Viewed 18505 times

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Jason Griffiths
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Re: Boeing B50- The largest electric Model ever!

Postby Jason Griffiths » February 8th, 2009, 10:22 pm

Looking good there will look very nice when all finished :D
Thanks 8-)

Ben_Gittus-Nash

Re: Boeing B50- The largest electric Model ever!

Postby Ben_Gittus-Nash » February 8th, 2009, 11:01 pm

looks beautiful :)

cant wait to see it fly!!!

Ben

Alan Cantwell 1131

Re: Boeing B50- The largest electric Model ever!

Postby Alan Cantwell 1131 » February 8th, 2009, 11:33 pm

AWSOME!!!!!!!!!!! as usual, very impressive, now then, have you plans for a B36????????? :D

Tony Nijhuis 2280
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Re: Boeing B50- The largest electric Model ever!

Postby Tony Nijhuis 2280 » February 8th, 2009, 11:51 pm

B36! Now there's a thought Alan..... ;)

Mike Booth
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Re: Boeing B50- The largest electric Model ever!

Postby Mike Booth » February 9th, 2009, 12:25 am

Fantastic a real build.

John Greenfield
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Re: Boeing B50- The largest electric Model ever!

Postby John Greenfield » February 9th, 2009, 7:49 am

Unfortunatly not the biggest Tony, ask Colin Straus.
Nice model though, look forward to seeing it fly.

John

Sverrir Gunnlaugsson
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Re: Boeing B50- The largest electric Model ever!

Postby Sverrir Gunnlaugsson » February 9th, 2009, 11:00 am

Sverrir Gunnlaugsson
Keflavik, Iceland
LMA #2623

Tony Nijhuis 2280
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Re: Boeing B50- The largest electric Model ever!

Postby Tony Nijhuis 2280 » February 9th, 2009, 2:03 pm

Thanks Sverrir, interesting link......looks like he has someway to go yet

Hi John, yes I know Colin Straus has a B-36 on the go...where do you think the orginal concept plans came from ;) :D
It was his idea I should build the B-50......Would be fantastic to have a 'B' Bombers flying slot at one of the shows next year......B-17, B-25, B29, B36 & B50

Looks as if the B-50 might be first into the air, but it won't be long before it will be overshadowed by these other two...obviously they are just as silly as I am ;) .....

Happy Days


Tony

Alan Cantwell 1131

Re: Boeing B50- The largest electric Model ever!

Postby Alan Cantwell 1131 » February 9th, 2009, 7:44 pm

A Boeing slot?? you know thats not a bad idea in fact its a VERY good idea

Tony Nijhuis 2280
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Re: Boeing B50- The largest electric Model ever!

Postby Tony Nijhuis 2280 » February 9th, 2009, 10:54 pm

Yep Alan, would only need the B-36 ready and job done.

With all the ran we have been having, Hastings flying field is currently under water so it doesn't look promising for any test flying this month :|

Never mind

Happy Days :D
Tony

Alan Cantwell 1131

Re: Boeing B50- The largest electric Model ever!

Postby Alan Cantwell 1131 » February 10th, 2009, 5:29 pm

getting the spruce goose out then? :D

Tony Nijhuis 2280
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Re: Boeing B50- The largest electric Model ever!

Postby Tony Nijhuis 2280 » February 11th, 2009, 9:20 pm

Planning on trying the Sunderland Alan... :D :D

http://www.tonynijhuisdesigns.co.uk/Sunderland72.htm

Happy Days

Tony

Alan Cantwell 1131

Re: Boeing B50- The largest electric Model ever!

Postby Alan Cantwell 1131 » February 11th, 2009, 11:29 pm

NICE choice, how big is it???

Phil Clark
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Re: Boeing B50- The largest electric Model ever!

Postby Phil Clark » February 13th, 2009, 8:57 am

ALAN CANTWELL 1131 wrote:A Boeing slot?? you know thats not a bad idea in fact its a VERY good idea


Apart from the fact the B-25 was built by North American :lol:

....and just to disrupt it further, I hope to be able to add my 'Martin' B-26 to the formation by the end of the year

Phil

Alan Cantwell 1131

Re: Boeing B50- The largest electric Model ever!

Postby Alan Cantwell 1131 » February 13th, 2009, 3:49 pm

B-loody ell, NER SAW THE B25 oops :geek:

Tony Nijhuis 2280
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Re: Boeing B50- The largest electric Model ever!

Postby Tony Nijhuis 2280 » February 15th, 2009, 10:50 pm

Phil Clark wrote:
ALAN CANTWELL 1131 wrote:A Boeing slot?? you know thats not a bad idea in fact its a VERY good idea


Apart from the fact the B-25 was built by North American :lol:

....and just to disrupt it further, I hope to be able to add my 'Martin' B-26 to the formation by the end of the year

Phil

Quite right Phil..Just didn't want to leave you out :lol: Maybe we'll call it the 'B' Slot

Happy days :D

Tony

Alan Cantwell 1131

Re: Boeing B50- The largest electric Model ever!

Postby Alan Cantwell 1131 » February 15th, 2009, 11:12 pm

that would B GOOD, sorry, get me coat :lol:

seeing a load of american bombers together, all differant types, would be superb, this is an idea well worth pursuing

Hugh Grant mbe
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Re: Boeing B50- The largest electric Model ever!

Postby Hugh Grant mbe » February 17th, 2009, 12:06 pm

Hi Tony, I have just got my hands on some 100mm stroke linear actuators very powerfull on 6v and direct hook-up no belcranks and linkages to worry about. Just the job to simplify those large flaps.
I will bring them to Wigan
Hugh Grant LMA 3000 from sunny Aberdeen.

Tony Nijhuis 2280
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Re: Boeing B50- The largest electric Model ever!

Postby Tony Nijhuis 2280 » February 17th, 2009, 4:28 pm

Hugh Grant mbe wrote:Hi Tony, I have just got my hands on some 100mm stroke linear actuators very powerfull on 6v and direct hook-up no belcranks and linkages to worry about. Just the job to simplify those large flaps.
I will bring them to Wigan
Hugh Grant LMA 3000 from sunny Aberdeen.


Hi Hugh, How much & many do you have??? I have a 75% complete Super Conny and they sound just perfect for the flaps... May need about 4 or so.

Unfortunately I won't be at Wigan but let me know details anyway

Just for info, the Conny is around the 20' span mark, and has four 5-Cylinder 4-stroke radials waiting to go in.... All the building work is done and hardware bought....Just need to find time from somewhere....... Next year I hope

Happy Days :D

tony


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