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Old Feb 03, 2016, 06:24 AM
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Question
Chris Golds Lancaster build from plans.

I have the plans for Chris Golds 90" span Lancaster originally for 4 Glow engines.
I have idea to build this with Electrics ... probably 2836 1100kv with 4 8x6 props ... and adapt to retracts.

Looking for anyone who has built this model ... I have the RCMF thread bookmarked ... need any other builders to add to the overall pot of this beauty.

http://www.rcmf.co.uk/4um/constructi...-build-review/

Nigel
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Old Feb 03, 2016, 07:16 AM
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Scroll down Nigel, there appears to be an interesting thread in the 'Similar Threads' list.

I fly a Depron scratch built 98" span Lancaster, no plans though.

Ray.
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Old Feb 17, 2016, 04:26 AM
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Originally Posted by eflightray View Post
Scroll down Nigel, there appears to be an interesting thread in the 'Similar Threads' list.

I fly a Depron scratch built 98" span Lancaster, no plans though.

Ray.
Hi Ray ...

Can you give me some details on your Lanc ? Do you have wood support

The CG Lanc uses a lot of sheet balsa and I want to move away from this if possible.

First parts ...



Outer nacelle sides (6mm Depron)
Fin / Rudders (doubled 6mm Depron)
Fuselage and nacelle formers in 4mm ply.

The plan calls for a lot of 1/4 and 3/16 balsa. I will substitute Depron skins for these. The Rudders will be laminated from 2 skins of 6mm depron with a wood hinge line to give strength.

Engine nacelles because I am going to use electric motors will be easier and not need so much work to protect from Glow fuel. 6mm Depron sides and skins ...

Fuselage will follow his plan with longitudinal wood strips to form the shape, sheet where wings and tail sit ... then clad with curved depron ...

Wings .... still haven't decided !!

RCTimer will be most likely supplying 3536/5 1450kv motors ... same as Turnigy but free shipping !! Swinging 8 x 4.5, 3 bladers. Ecalc shows it will be ~0.9:1 Thrust to weight ....

Nigel
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Old Feb 17, 2016, 07:21 AM
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Oh no, not again!
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Very cool, Nigel. Hope you turn this into a build thread.

Regards,
Jeff
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Old Feb 17, 2016, 09:00 AM
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Very cool, Nigel. Hope you turn this into a build thread.

Regards,
Jeff
The plan calls also for packing case foam blocks to be carved / sanded to shape for fuselage. I think I will pass on that !! The mess will be amazing.

Depron skins and folding to shape is my plan.

To give all strength will be synthetic silk, (very thin plain Net Curtain) and PVA covering. Original uses packing paper ... which I hope using the silk will save more weight.

I'm just annoyed that the Plastic Moulding set is so expensive to get shipped. I don't mind the 28 for the set ... 4 cowls, turrets, bomb-aimers and canopy ... but 60 shipping ? That's not funny.

The wing seat / top ... I am adding a 2mm Lite Ply doubler to the depron to strengthen this area. Stretches from F3 back to F7 along bottom and then an insert to the removable top section between F4 and F6.
The wing seat area on the Lanc is notoriously weak in models.

Sorry about so much text and no photo's ... still putting together materials and ideas to get this monster sorted.

I think I am going to have to either build a Gravity foam cutter or resign to making traditional wing.

Nigel
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Old Feb 17, 2016, 09:18 AM
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Sorry Nigel I forgot to show my 'build' thread --

Another Lancaster, balsa and Depron, 98" span.


Ray.
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Old Feb 17, 2016, 09:56 AM
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Sorry Nigel I forgot to show my 'build' thread --

Another Lancaster, balsa and Depron, 98" span.


Ray.
I hope I can do as well as yours.

One way of connecting up the wing gear ... Balance Plugs ... for servos and I think I will go for similar to my HK Lanc ... long battery to ESC leads ... I know I know ... not best idea ... unless I can locate the ESC's near to wing centre section and extend motor wires. I plan on using multiple 3S packs spread through the bomb bay.

Nigel
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Old Feb 18, 2016, 07:24 AM
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Ivan Pettigrew has a plan for 100" Lancaster built very much in the old school "sticks and covering" style. Just Google his name and his plans website should come up. There is a sticky thread on this forum about his models. The Chris Golds model was built to a very different concept.

Mike
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Old Feb 18, 2016, 09:39 AM
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Originally Posted by Sopwith Mike View Post
Ivan Pettigrew has a plan for 100" Lancaster built very much in the old school "sticks and covering" style. Just Google his name and his plans website should come up. There is a sticky thread on this forum about his models. The Chris Golds model was built to a very different concept.

Mike
Appreciate the info ...

I have the Chris Golds plan and that's what's going to be built ... with modification for modern materials and electrics.

I used to have the RCM&E magazine and the plan back in the 80's ... in fact a group of us were going to create a BoB model flight. But things got left ... one guy died and my plans he had were swallowed up in the clearance. Last year I finally coughed up to replace the lost plans ...

I am hoping that the wood can be reduced in such as Nacelles being electric power ... and the foam blocks left out being replaced by folded Depron sheet.

I hope I can shed a lb or two from the overall weight.

Nigel
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Old Feb 18, 2016, 09:29 PM
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Odd but interesting Digression :-)
Post war some Lancs were converted to Airliner duty.
These contraptions carried .. wait for it.. 11 passengers.
Puts them into a real world perspective.. don't it?
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Old Feb 19, 2016, 01:18 AM
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Originally Posted by Bare View Post
Odd but interesting Digression :-)
Post war some Lancs were converted to Airliner duty.
These contraptions carried .. wait for it.. 11 passengers.
Puts them into a real world perspective.. don't it?
Lancastrians

The Lancaster also led onto to the highly successful Shackleton, which the BoB Lancaster owes a lot to to be able to continue yo fly.

Nigel
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Old Feb 19, 2016, 06:59 AM
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OK ... I cut the fuselage depron sides in 3 sections ... and joined at less stressed points. The 6x6mm pine longerons will provide the real strength required with an extra longeron at wing saddle level.

Just getting an idea of size and dry run of the 4mm ply formers (propped up by lipos etc) ...



Boy this baby is BIG !!

There will of course be extra sheet / strips to the fuselage sides to build in strength as the depron alone will not be enough.

nigel
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Old Feb 19, 2016, 10:54 AM
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Now started putting her together ....



6 x 10mm pine longerons along bottom ... 4mm ply formers ....

The bottom longeron is full length ... so that provides my first key former construction.

Once glue is set - I shall add the top longerons which then start to pull the fuselage into shape, final is when the depron sides are fitted ... I will need to force the bend in the bottom longerons.

Nigel
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Old Feb 19, 2016, 01:14 PM
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Quote:
Originally Posted by Bare View Post
Odd but interesting Digression :-)
Post war some Lancs were converted to Airliner duty.
These contraptions carried .. wait for it.. 11 passengers.
Puts them into a real world perspective.. don't it?
Don't forget the Avro York that used the Lancaster wing and tail with a new square section fuselage.

P.S. My ESCs are well forward in the bomb bay, and batteries, 2x 3s 4000mAh packs, are almost under the cockpit.


Ray.
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Old Feb 19, 2016, 05:40 PM
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Quote:
Originally Posted by Bare View Post
Odd but interesting Digression :-)
Post war some Lancs were converted to Airliner duty.
These contraptions carried .. wait for it.. 11 passengers.
Puts them into a real world perspective.. don't it?
Having been inside this Lanc, I'm amazed they were able to fit 11 passengers inside that very confined fuselage.

Steve
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