Could you electrify this ??

[mackone]

And If so what with ?

http://www.kmp.ca/product_info.php?cPath=22&products_id=204&osCsid=e2c0e6b10f99a1d2eb9a4946e40cd03e

[elcamino]

what plane are you looking at??? the link just takes you to the store front .

[mackone]

The KMP PC-21 , the link keeps refering to the kmp home page?

[aftica]

...

[tIANcI]

Of course you can electrify this baby. She has an estimated AUW of 15 lbs so you are looking at a 10S set up, 12S would be even better. A 90A ESC will be fine and as far as motors go you can try something equivalent to the AXI 5330 or maybe a DualSky 6360 motor if budget is an issue. My only issue with the conversion would be the prop clearance.

Motors like the 5330 or 6360 will turn a 20x15 prop, this plane is a 180 4C and that turns an 18" prop. The model at the KMP website is using a 3 bladed prop and seems to have quite a bit of clearance.

The there is the issue of battery placement/access. Wonder where the batts can be placed for easy access and yet help with the CG.

I got my sights on this one ... she does look superb.

[pmackenzie]

cool plane! link does the same for me. weird.


Try this link:
http://www.kmp.ca/product_info.php?cPath=22&products_id=204&osCsid=7d0d984b68e8d0ed9ac3f0d14b174c8e

Pat MacKenzie

[mackone]

Prop clearance , could be the big issue
a multiblade prop might be the solution . But the set up to run a multiblade prop ?

[tIANcI]

mack ... its the same set up, you will only reduce the diameter of the prop accordingly, that's all. What's your take on battery access? Remove the wing or cut a hatch? She is pretty huh? :)

[mackone]

mack ... its the same set up, you will only reduce the diameter of the prop accordingly, that's all. What's your take on battery access? Remove the wing or cut a hatch? She is pretty huh? :)


Yep very nice , aeronaught have one as well , about the same size . With enough go it should be awesome

[tIANcI]

Mack ... the Aeronaut one is small and expensive! :)

[mackone]

hey tianic , i was thinking about one of these for a power plant , multi blade prop should get along ok . :)

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6889&Product_Name=AXi_5330-Double_GOLD_LINE_Brushless_Motor

[bandman444]

WOW going with that i guess bugdet is not an issue

[tIANcI]

Mack ... I believe the single AXI 5330 would be sufficient! Hahahahaa ... if in doubt then maybe take the 5345. :)

[mackone]

I think this plane would only look super cool with a nice 3 blade prop .

but its going to have to spin as fast as possible to suit the planes performance

so what would be a good setup , the twin is awsome , but overkill , the tree blade needs alot of rpm ?

[jfetter]

Actually I just ordered one tonight, seemed to get the last one too! I plan on powering it with an Axi 5330/F3A, Jeti Spin 99 on 12S turning a Mejzlik 18 x 10 (hope it fits, I'll post ground clearance when I start a build thread). I've been looking at this one for some time, out of stock status and price made me re-think a few times but in the end I just couldn't say no to the looks!

Jack

[Lynxman]

The scale prop would be 18"-18.5" and five blades. I'm going to do one of these myself soon. A heavy motor will probably be a problem because of the long nose and because it already has the weight of a nose gear.

It's not a giant scale plane though. :)

[jfetter]

The scale prop would be 18"-18.5" and five blades. I'm going to do one of these myself soon. A heavy motor will probably be a problem because of the long nose and because it already has the weight of a nose gear.

It's not a giant scale plane though. :)

Well, remember I've got 56 oz of LiPo's to move around to balance it out. 5-blades!? Seriously?

Jack

[parkfly27]

if you're on a budget, consider this setup

Zippy 6S 5000mah 15-25C here (2 in series for 12S): http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=7639&Product_Name=ZIPPY_5000mAh_6S1P_15C_

HXT 63-74 here: http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=3890&Product_Name=HXT_63-74_200kv_Brushless_Outrunner_(Eq:5240)

20X12 wood prop

This setup is good for up to 30lbs of thrust, but will also be WAY lighter than the gas engine.

ESC:
http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=4691&Product_Name=TURNIGY_Sentilon100A_HV_5-12S_BESC_(Ver4)


total cost is $319 with battery

maybe this helps?

[Lynxman]

Well, remember I've got 56 oz of LiPo's to move around to balance it out. 5-blades!? Seriously?

Jack

Yup. It's a beautiful and exciting aircraft: http://www.airliners.net/photo/Pilatus/Pilatus-PC-21/1412440/L/

[jfetter]

Yup. It's a beautiful and exciting aircraft...

Sweet picture! Too bad Mejzlik doesn't make a 5-blade CF...

Jack

[parkfly27]

that is a very sharp airplane... a 5-blade CF prop would be way too cool!

Do you think 5-blade prop is too much fo an electric motor? maybe a really low KV would work?

[jfetter]

that is a very sharp airplane... a 5-blade CF prop would be way too cool!

Do you think 5-blade prop is too much fo an electric motor? maybe a really low KV would work?

There are electric setups turning 28"+ props, 5-blades, 2-blades, as long as the prop is sized accordingly it doesn't matter...

Jack

[Lynxman]

I have run a home made five 19" blade prop (home made hub blades made from APC props) on a 1/6 scale Spitfire XIV and a rewound Axi 4130 motor before with great result. It's not a big problem, just requires some R&D.

Video of the Spit: http://www.youtube.com/watch?v=HnLy694FW-E&feature=channel_page

[parkfly27]

wow, nice spitfire!! I just love that sound too :D

I'm thinking of building a 120-size electric corsair as a summer project... a 4-blade prop would look real nice on that. I've heard that having extra blades decreases prop efficency... is this true?

[Lynxman]

The loss of efficiency is greatly exaggerated. People keep saying that the blades travel through the disturbed air from the previous blade, but this is not really the case.

You won't notice a decrease in efficiency if the power system is adapted to the job (low rpm, high torque) and the prop is configured correctly. Normal props don't work because the pitch is too low.

[eye4wings]

Awesome looking model!
Personally if pushing the power a bit I would steer clear of the Axi range as I've seen several coming to a nasty graunching stop on take off power through losing magnets.
If I may suggest - Have a look at the Vortex range. They are proof against losing magnets because the case it keyed to hold them unlike the Axi which relies on glue - unless they have changed while I wasn't looking. The Vortex range are also cheaper!
I got mine from
www.allelectricrc.co.uk

[jfetter]

Awesome looking model!
Personally if pushing the power a bit I would steer clear of the Axi range as I've seen several coming to a nasty graunching stop on take off power through losing magnets.
If I may suggest - Have a look at the Vortex range. They are proof against losing magnets because the case it keyed to hold them unlike the Axi which relies on glue - unless they have changed while I wasn't looking. The Vortex range are also cheaper!
I got mine from
www.allelectricrc.co.uk

Axi modified their design some time ago, glue and a keyed fit. I've got 15 lb models flying on Axi 5330's x 12S setups for a few years now, no problems...

Jack

[eye4wings]

Glad to hear Axi got the message. A mate of mine had to send his 28 series back twice. Thanks for the good news.