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HomeAircraftHelicopterAntiques or Out of Business › Kavan Lockheed 286L refurbishing
04-01-2009 08:00 PM  9 years agoPost 1
dcloukotarrNovice - Glendora, CA - My Posts: All  Forum  Topic

I'm in the process of refurbishing a L-286 that last flew in the early 80s. Dose anyone out there have one and would like to pool our knowledge? The original mechanics work fine but to be on the safe side I'm redoing the servo platform for 4-servo eCCPM using a SK360 gyro system as well as a GY401 tail gyro.
It's a survivor so it deserves a more state of the art mechanical system. The old OS 61FSR motor has a H head and seems to run fine after an extensive cleaning and tune-up.
I also am converting my Hirobo CH47 to E power but I'll keep the Lockheed as close to as it was.

Cheers, Doug

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04-01-2009 11:16 PM  9 years agoPost 2
v22chap

rrKey Veteran

Granger, Indiana

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Very nice bird ... always wanted one ,,but never had the money

Larry C ----------Bergen R/C helicopters

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04-01-2009 11:28 PM  9 years agoPost 3
marc28

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new york

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good luck with the refurb

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04-02-2009 12:35 PM  9 years agoPost 4
R-Moore74

rrApprentice

norway

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Lockheed 286
Hi!
Man that heli looks like new to me! I have one myself but it looks like a bomb crater compared to yours!!
I've started rebuilding it some time ago but I need a few bits and bobs...new main gear and pinion amongst others...mine also have flybar and I'm wondering if the only difference is the main rotor hub...and of course the mechanical mixers. But I'm like you going eCCPM.
My fuselage is the worst part since the piano wire landing gear was bent and have deformed the bottom of the fuse...a few pics are posted in my gallery.
Well at least I have loads of work left on it and I don't think it flies this summer
For now I'm cruzing around with one of my Kalt Baron20's...another is in the build these days! It sure is a funny little machine!

Good luck!

Bent Are

BEntHeli
Who says it can't fly? - Just watch and I'll make it!!

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04-02-2009 07:04 PM  9 years agoPost 5
andre

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France

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I worked on this heli some time ago
it' s worth

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04-02-2009 09:30 PM  9 years agoPost 6
R-Moore74

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norway

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About the 286L
When I got the 286L I was wondering where it originated from, so I found this http://en.wikipedia.org/wiki/Lockheed_XH-51 Oh well...still a long way to go on mine then...

BEntHeli
Who says it can't fly? - Just watch and I'll make it!!

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04-03-2009 12:04 AM  9 years agoPost 7
v22chap

rrKey Veteran

Granger, Indiana

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Boy ,,,now you guys are really hurting me ,,, the more that pop up .... I just wish I had got one long time ago and then it would be out of my system !!!

Larry C ----------Bergen R/C helicopters

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04-10-2009 08:29 PM  9 years agoPost 8
dcloukotarrNovice - Glendora, CA - My Posts: All  Forum  Topic

Making progress ..... I guess
So far I've redesigned the servo deck to run a four servo eCCPM cyclic/col. All of the electronics other than the battery are attached to this deck and it is removable in one chunk for service. The SK360 appears to be the way to go for a flybarless system but I haven't flown it yet....maybe next week. The tail gyro is a GY401 and I'm using all Spektrum digital servos.

The SK360 is easy to program and will work for any rotor system. If all goes well with the stock Kavan rotor I might look into a four blade head to match the one and only scale aircraft.

If anyone wants a Visio drawing for the .25in plywood deck, just let me know. BTW the SK360 can also be setup for the stock Kavan mixing (mCCPM) setup.

Cheers, Doug

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04-10-2009 08:48 PM  9 years agoPost 9
TMoore

rrMaster

Cookeville, TN

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Are you using 821's?

Delayed Response Operator Not Engaged
AMA SECTION 336 = Good
Drones = EVIL

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04-10-2009 10:46 PM  9 years agoPost 10
dcloukota

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Glendora, CA

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Servos
Yup. 821's. I figure it's OK for the light flying I'll be doing with this aircraft. Hovering, figure-8s, stuff like that. Besides I had a few just gathering dust. I have heard in the 3D environment they snap the output shaft. I know that a rigid system tends to put more load on the servo than the flybar but the servos still are attached through the Kavan 2:1 bellcranks.
BTW, The Kavan Jet Ranger in the picture is the one I built in 1974 and never crashed. I don't have any plans to redo this one, just keep it hanging in the shop.
Does anyone have a rough idea of how many of this model are still flyable?

Cheers, Doug

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04-10-2009 10:57 PM  9 years agoPost 11
TRACERBOB

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Closer than you think

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I've always wanted one of those. Had a Jet Ranger but I let it get away. Very nice.

Life is hard. Harder when your stupid

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04-10-2009 11:40 PM  9 years agoPost 12
TMoore

rrMaster

Cookeville, TN

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If you want to keep that 286L I wouldn't get 821's any where near it but thats me.

TM

Delayed Response Operator Not Engaged
AMA SECTION 336 = Good
Drones = EVIL

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04-11-2009 12:31 AM  9 years agoPost 13
human213

rrVeteran

malibu

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That servo
has a know much higher than average failure rate.

You may want to reconsider...

m

Not everything that can be counted counts, and not everything that counts can be counted.

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04-25-2009 07:35 AM  9 years agoPost 14
Gearhead

rrMaster

Vt

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Kavan/Kaman
Doug, that's a cool heli,, I have to tell you I fly with an X Kaman Rep, he know his stuff, funny how he was a Rep for a fullsize heli company but he only flies RC planes LOL, says he can's fly the helis LOL

Jim
Buzz Buzz Buzz

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04-26-2009 05:52 AM  9 years agoPost 15
heli_headcase

rrKey Veteran

Hovering around Atlanta

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Dump the servos, please...
I concur with TMoore and human213. That heli is too rare to risk flying with servos known to have a high failure rate. And I think you (dcloukota) have the cyclic bellcrank ratio backwards. Isn't the output arm (to the swash) twice as long as the input arm (from the servo)? This demands double the strength from the servo to move the swash which also means the blades can exert twice the force on the servos than if a direct 1-1 connection to the servo arm. Please pardon me if I have that backwards. Still, those servos aren't to be trusted.

That Jet Ranger looks fantastic - much nicer than mine. But my heli is a pure 'beater' and I wouldn't cry (too much) if it met with an accident. Don't laugh...


HHC

So many heli's - too little time...

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05-02-2009 05:04 AM  9 years agoPost 16
UAV Systems

rrApprentice

Brisbane, Queensland - Australia

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cool jetranger
here is my ol' baby

"CASA certified since 2007"

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05-02-2009 06:43 AM  9 years agoPost 17
heli_headcase

rrKey Veteran

Hovering around Atlanta

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Very nice...
Your Kavan is in great shape. A second version I see.

Is it currently in flying shape? What engine, exhaust and head speed?

Here's the 'beater' flying nicely:

Undercarriage seen in first picture replaced with something more practical.


HHC

So many heli's - too little time...

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02-12-2014 01:44 AM  4 years agoPost 18
twoods

rrNovice

Australia

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Kavan 286L
Hi guys,
Sorry to bring up an old forum but I have landed an old Lockheed 286L in immaculate external condition from my grandpa. I am really keen to get the inside up and running. I have all the parts, just need to know things like how to wire the fuel lines between all parts, and how to wire all the electrical. Any help and pictures would be very much appreciated!!

Cheers
Taylor

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02-12-2014 02:43 AM  4 years agoPost 19
TMoore

rrMaster

Cookeville, TN

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Did you get instructions?

Delayed Response Operator Not Engaged
AMA SECTION 336 = Good
Drones = EVIL

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02-12-2014 05:17 AM  4 years agoPost 20
twoods

rrNovice

Australia

My Posts: All  Forum  Topic

yes, but they do not indicate how to wire the fuel lines between the refiller, the back of the motor, the fuel tank and the carb. I have seen some restored in this post and was just wondering if people could either explain how this should be done or post some pics so I can try and figure it out for myself.

Thanks for your reply.
Taylor

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HomeAircraftHelicopterAntiques or Out of Business › Kavan Lockheed 286L refurbishing
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