Guillows Piper super cub r/c conversion?

[jakegazzard]

I was bought the kit above for my birthday and i have just started it, i am thinking of putting a cox 049 on it (brand new cox 049 is £12 with prop!). Also as there is not enough room inside the model for micro servos, i will mount them on the outside of the frame. All together, i have a micro reciever anyway so inc 2 servps it will cost me under £20. It will have no throttle controll but has rudder and elevator. Good idea? Discuss.

[Hangar-7]

I think it is an excellent idea. Keep us posted with pics or vids or both.

[Pitman]

It might be better to use an electric motor, not sure if the light weight frame will be suitable for the vibrations from a glow engine. Have a look here for some ideas:

[url=http://www.rcgroups.com/forums/showthread.php?p=7936083]Guillows 20" Piper cub RC conversion - RC Groups[/url]

[POLAR BEAR]

Gillows Cub is a stick and tissue free flight model designed for rubber power if im not mistaken there fore the air frame will need "beefing up" plus cox o.o49 will err scream its t*ts off !! go for a small brushless motor you can get tiny servos now that will fit the bill. Why not have a look at some pics of some of the big R.C planes and see that they mount the servos in the side of the air frame by the flying serfaces.

[jakegazzard]

Ahhhhh just ordered this!
[url=http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=390145031717&ssPageName=STRK:MEWNX:IT]Cox 049 Model Airplane Engine - Our LOW COST engine ! on eBay (end time 17-Feb-10 18:31:42 GMT)[/url]

[url=http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=390143250728&ssPageName=STRK:MEWAX:IT]Cox 049 / 051 Model Airplane Prop / Propeller 5 x 4 on eBay (end time 13-Feb-10 10:22:53 GMT)[/url]

[jakegazzard]

bump!!!!

[jakegazzard]

finished half the wing

[Bart101]

I see you've taken the advise from other members then....:rolleyes:

[Pitman]

[quote=Bart101;412855]I see you've taken the advise from other members then....:rolleyes:[/quote]

I can only but see this ending up in tears! :( Glad to see that you have got your finances sorted out, though, Jake! :)

[jakegazzard]

my grandad gave me £15 pocket money

[Pitman]

[quote=jakegazzard;413005]my grandad gave me £15 pocket money[/quote]

That is great, Jake.

As far as fitting the cox to the Guillows kit is concerned, have you thought it through? What are you going to cover the model with? Tissue paper is not fuel proof, also, the cox engine does not have an exhaust deflector, so will spray exhaust gas/ oil everywhere, so you will have to seal the whole model, adding weight.

Have you designed a proper bulkhead to mount the engine to, ensuring that the forces and vibrations from the engine are properly transmitted throughout the airframe?

I dont want you to waste the money that your granddad gave you!:)

[Tom Burgess]

Jake, I had a control line plane when I was about your age with a Cox .049 on it and I can tell you that the thing used to be soaked after a flight.

Putting one on a tissue covered band power model is not a good idea :(

[Pitman]

[quote=Tom Burgess;413106]Jake, I had a control line plane when I was about your age with a Cox .049 on it [/quote]

Those were the days, Tom! I still have a scar on my finger from getting it in the way of the prop when trying to start it with the 'wind back' spring!

[Tom Burgess]

[quote=Pitman;413116]Those were the days, Tom! I still have a scar on my finger from getting it in the way of the prop when trying to start it with the 'wind back' spring![/quote]

Oh yes, I forgot about the spring :D

I remember I broke the line so used piano wire, I reckon it was the biggest cheese wire around :D

[jakegazzard]

I have some solartex. i may scrap the cub idea.