Li'l Jumpin Bean

jsesere Sat May 19, 2012 1:28 am

I just got a NIB Li'l Jumpin Bean. Why am I so excited? I feel like a kid again.

**RknRusty** Sat May 19, 2012 9:21 am

I love mine. I built it last spring.
This one has the Brodak plastic motor mount. I highly recommend finding the plans for the old style nose and build it with that. The new type is a weak spot that can snap off too easily.
Li'l Jumpin Bean 100_3596

Kim Sat May 19, 2012 9:22 am

jsesere wrote:I just got a NIB Li'l Jumpin Bean. Why am I so excited? I feel like a kid again.

How lucky are we...that a flat box of cookie-cut wood, sheets of paper and wire scraps can make our day ???!!!!!!

**Cribbs74** Sat May 19, 2012 9:48 am

Speaking of the plastic motor mount does anyone know where to find one? There is supposed to be one on my 'lil wizard held on by rubber bands. I did have it years ago, now it's lost forever........

**Cribbs74** Sat May 19, 2012 9:49 am

Kim wrote:
jsesere wrote:I just got a NIB Li'l Jumpin Bean. Why am I so excited? I feel like a kid again.

How lucky are we...that a flat box of cookie-cut wood, sheets of paper and wire scraps can make our day ???!!!!!!

It's the simple things Kim. My kids are more entertained by chickens,dirt and rocks then the latest toy.

jsesere Sat May 19, 2012 9:52 am

Now I'm trying to decide on a power plant. Been years since I have flown 1/2 A and the dizzy factor may be an issue in my older years. I was thinking Tee Dee with one of those Cox beam mount tank combo or maybe go old school with a reed engine. You mentioned the Brodac mount issue. I guess I can reinforce it a bit.
Ron check with Brodak for a mount.

ZACATTACK Sat May 19, 2012 11:50 am

Black Widow... Great motor for this plane!! I have a vintage kit NIB from the early 70's if you want... the originak kit came with a clear canopy, rear tail wheel, balsa pilot cut out, solid wood engine mount...there is a difference from the old Carl Golberg Kit and the Brodak kit...I like the old kit alot more. Have Fun..This plane is a great flyer...Rusty has some videos on You Tube you should check out.

daviddiag Sat May 19, 2012 12:49 pm

My son and I built this Lil Jumpin" Bean over twenty years ago. It has never been flown. It was recently discovered in the garage under a layer of dust and spider poop, along with my other old planes. It cleaned up pretty well. Got all my engines in good shape with help from this forum. Hope to be flying again soon

nitroairplane Sat May 19, 2012 1:45 pm

[quote="daviddiag"] Li'l Jumpin Bean Dscf0010

My son and I built this Lil Jumpin" Bean over twenty years ago. It has never been flown. It was recently discovered in the garage under a layer of dust and spider poop, along with my other old planes. It cleaned up pretty well. Got all my engines in good shape with help from this forum. Hope to be flying again soon[
/quote]

Very cool, cant wait for the flight report!

Ivanhoe Sat May 19, 2012 5:38 pm

Here's my take on the Jumpin' Bean, now has a Black Widow in place of the Bee in the photo

Li'l Jumpin Bean Bean_111

I'd strongly advise that you reinforce the fuselage behind the wing, as I have in the photo (Bamboo strips) as the model is VERY prone to break here.

jsesere Sat May 19, 2012 5:45 pm

Old school covering. I like it.

**RknRusty** Sat May 19, 2012 6:09 pm

It flies great with a Black Widow as far as power and balance. But I keep running out of gas before I'm through having fun, so if I had it to do over, I would break tradition and beam mount a Medallion on it. Since this is such a simple and great fun-flyer, I say Medallion because it draws fuel easier and is less fuss than a Tee Dee... keeping it simple. I've never seen a picture of a beam mounted Bean, but the kit has the option of either mount.

Here are the pictures of the doublers I added to mine after rebuilding the broken nose:
Li'l Jumpin Bean Th_0827112312

ZACATTACK Sat May 19, 2012 10:32 pm

Ivanhoe wrote:Here's my take on the Jumpin' Bean, now has a Black Widow in place of the Bee in the photo

I'd strongly advise that you reinforce the fuselage behind the wing, as I have in the photo (Bamboo strips) as the model is VERY prone to break here.

Is the lead-outs not at the bottom of this plane?? I see you have placed them at the top??

**RknRusty** Sat May 19, 2012 11:18 pm

ZACATTACK wrote:
Is the lead-outs not at the bottom of this plane?? I see you have placed them at the top??

Mine are on top of the wingtip just like that, sitting in a carved out cradle. Either way would work, but it's a little stronger on top of the tip.

jsesere Sun May 20, 2012 12:03 am

What do you all use for lead outs from the bellcrank?

Ivanhoe Sun May 20, 2012 4:24 am

jsesere wrote:What do you all use for lead outs from the bellcrank?

I use fishing lead wire (That's "LEED" not "LED"!) I think in the fishing community it's called "Trace" wire, comes in various breaking strains, I use the strongest I can find!

Ivanhoe Sun May 20, 2012 4:25 am

ZACATTACK wrote:
Ivanhoe wrote:Here's my take on the Jumpin' Bean, now has a Black Widow in place of the Bee in the photo

I'd strongly advise that you reinforce the fuselage behind the wing, as I have in the photo (Bamboo strips) as the model is VERY prone to break here.
Is the lead-outs not at the bottom of this plane?? I see you have placed them at the top??

I don't like leadouts under the tip, just personal preference.

**RknRusty** Sun May 20, 2012 8:22 am

The Brodak kits come with braided steel leadout wire. It has a smooth feel to it like it's coated with plastic but I'm not sure if it is. It works fine with the copper crimping tubes supplied. I always cover the crimps with shrink tube.

Ivanhoe Sun May 20, 2012 8:47 am

RknRusty wrote:The Brodak kits come with braided steel leadout wire. It has a smooth feel to it like it's coated with plastic but I'm not sure if it is. It works fine with the copper crimping tubes supplied. I always cover the crimps with shrink tube.

The fishing wire I use is also nylon coated, as you say it works OK with crimps, but if you want to solder it (I always do) you have to strip the covering off the bit you want to solder first, a sharp blade will do it

Wilf

**Cribbs74** Sun May 20, 2012 9:17 am

Does the Brodak Bean have the original rounded nose or is it beam only? I also see they are out of stock Sad

**RknRusty** Sun May 20, 2012 9:44 am

cribbs74 wrote:Does the Brodak Bean have the original rounded nose or is it beam only? I also see they are out of stock

It comes ready for beam, but also has the plastic radial mount and instructions for building it either way. Note my comments above on the weakness of the nose with the plastic mount, and my modifications after it broke.

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