Re: Hydro-bat by Vic Smeed: engine probs

OVERLORD Fri Dec 29, 2017 10:13 am

The hull is totally covered. Maybe I'll stick some more deco on, a number or sponsors names...

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roddie Fri Dec 29, 2017 3:06 pm

That's pretty COOL Lieven! Cool

I'll admit.. I had to look-up "John Player" on the web, to understand the connection. The Cox Black Lynx engine is going to look real sharp mounted on there!

Marleysky Fri Dec 29, 2017 5:16 pm

It’s a really “Smoking Hot” model!! To quote the late John Lennon “Sir Walter Rahlgh was such a stupid get”. Although it needs an obscene amount of gold pinstripes to keep up with the rest of the paddock. lol!

Super job on the build and covering!

OVERLORD Sat Dec 30, 2017 2:24 am

Thanks guys. Plans were to put the gold lettering on the black background. I found out how to create the gold colour in WORD. I also downloaded the letter type proper to "John Player Special" tu use in Word. But once printed on transparent vinyl and stuck on the black background, the gold colour is not "dense" enough to remain gold. The results are better when stuck on white.

getback Sat Dec 30, 2017 9:57 am

Looks Great !! Can't wait to see her in action !! I like the bubble with the spaceman effect Clapping

OVERLORD Wed Jan 10, 2018 7:03 am

I started to finish the pylon. After glueing the tank and the hidden nuts to hold the engine, it was all covered with balsa. Then I shaped it with a plane and sand paper.

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OVERLORD Fri Jan 26, 2018 7:19 am

The finished boat weights 360g with radio gear. Add the pilot and it will be 370g.

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getback Fri Jan 26, 2018 8:25 am

Sweet Overlord , i like the way you shaped the narticle? engine mount ! lol!

came out nice !! Get that little man in there .

roddie Fri Jan 26, 2018 8:32 am

WOW!!! That is really sharp Lieven! It sits nice in the water too. Another Masterpiece!! Thumbs Up

KariFS Fri Jan 26, 2018 9:35 am

VERY NICE! I like how the red colour of canopy bracket-thing "resonates" with the backplate of the engine Thumbs Up

Engine fairing/nacelle is also cool, with the "kamm-tail" style. And as usual in your project, superb workmanship

Sits nice in the water too as Roddie said, although the owner of the test pool (seen in the background) doesn't look too pleased lol!

OVERLORD Sat Jan 27, 2018 3:21 am

The pilot is in!! I painted him yesterday evening as he looked a bit pale in white plastic.

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The centre of gravity is right on the central fin which corresponds with the engine's crankcase. If necessary, I can move the battery. Now, the battery lays flat against the rear bulkhead of the radio compartment.

We have 2 pigmy goats. The one on the picture is the biggest one. They're both boys and they are good fun. The Kamm tail was not made on purpose and I didn't realise it until you mentioned it Kari.

Thanks for your comments.

OVERLORD Tue Feb 20, 2018 1:34 pm

I have bad luck. I checked the Black Lynx engine and discovered a lot of play of the crankshaft in the crankcase bore. In fact, It's like waving a pencil in the Albert Hall. I tried to get some life out of it but after squirting a little fuel in the cylinder which would make it rev instantly resulted only in a rocking piston slamming the crank up and down. I don't know how the Black Lynx engine is assembled but this was a really bad match.

1/2A Nut Tue Feb 20, 2018 3:06 pm

Post a vid when you get this one running at the local pond!

Thumbs Up

roddie Tue Feb 20, 2018 8:23 pm

OVERLORD wrote:I have bad luck. I checked the Black Lynx engine and discovered a lot of play of the crankshaft in the crankcase bore. In fact, It's like waving a pencil in the Albert Hall. I tried to get some life out of it but after squirting a little fuel in the cylinder which would make it rev instantly resulted only in a rocking piston slamming the crank up and down. I don't know how the Black Lynx engine is assembled but this was a really bad match.

Geez.. that's a shame Lieven. I wonder if the crankshaft was machined incorrectly? Do you have a micrometer to check its' dimensions against a known/good crankshaft? Alternately; a spare crankcase to check whether the Lynx-crank fits with less slop? Had you run this engine at all before discovering this? Maybe Matt will help you out with a replacement bottom-end. I don't know if the Black Lynx comes with a H/D crankshaft.. but it seems I remember there were some defective H/D cranks sourced a while back. I don't know if it was Matt, Bernie or "both" that had them.

**Cribbs74** Tue Feb 20, 2018 8:36 pm

Matt will definitely clear matters up. Sometimes these things happen, I imagine all “new” engines are assembled with a mismatch of NOS and re-manufactured parts. Sometimes it works out and sometimes not. Anyway, a quick phone call or email will remedy the problem.

Ron

Jason_WI Tue Feb 20, 2018 8:41 pm

roddie wrote: I don't know if the Black Lynx comes with a H/D crankshaft.. but it seems I remember there were some defective H/D cranks sourced a while back. I don't know if it was Matt, Bernie or "both" that had them.

Those were the first batch that had the hole in the center of the crank web. The prop screw hole wasn’t centered on some of those. This was at least 6 or 7 years ago.

The latest HD cranks from Matt had good fit and finish. I just put one in a Texaco engine with a new red crankcase.

It’s possible you got a crank on the lower end of the acceptable diameter and a crankcase on the upper end of the acceptable diameter resulting in a tolerance stack up issue.

dckrsn Sat Jan 23, 2021 7:20 pm

I have 2 NIB .049 Swamp Buggies to build. Too bad
I have the attention span of an ash tray. What?

Bob

OVERLORD Sun Jan 24, 2021 5:59 am

dckrsn wrote:I have 2 NIB .049 Swamp Buggies to build. Too bad
I have the attention span of an ash tray.
Bob

It's winter, time to get started!!

Today I got the airboat out and gave the engine a spin. I replaced the black lynx by a Super Chipmunk engine. This morning, we had a bit of snow so I tried a little glide. There was plenty of power but the snow was not thick enough and the knife was touching the ground.

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getback Sun Jan 24, 2021 6:03 am

dckrsn wrote:I have 2 NIB .049 Swamp Buggies to build. Too bad
I have the attention span of an ash tray.
Bob

you dip !

getback Sun Jan 24, 2021 6:07 am

Snow!!! Greenie for effort , Maybe harden up over time .

davidll1984 Sun Jan 24, 2021 11:51 am

Look so cool y like very Nice build Thumbs Up

OVERLORD Sun Jan 24, 2021 1:25 pm

Thanks guys. The snow has long gone now but the fields around here are saturated by the rain and parts are flooded. When the ice is gone, I'll give it another try!

oldguy Sun Jan 24, 2021 5:49 pm

OVERLORD wrote:The finished boat weights 360g with radio gear. Add the pilot and it will be 370g.

That sucker looks great, what a great job. would love to see i video someday of that baby on the water. Thumbs Up

roddie Thu Apr 25, 2024 10:58 am

thread BUMP..

GallopingGhostler Thu Apr 25, 2024 5:12 pm

Speak of Hydra Batty! Shocked

dckrsn on Jan 23, 2021 wrote:I have 2 NIB .049 Swamp Buggies to build. Too bad I have the attention span of an ash tray. Bob

The other day, I peaked into the shop next door to Planet Fitness. Unoccuppied for a while, it was being remodelled. Through the large glass front windows, saw display glass cases being erected in the middle of the floor. They were trimmed in bright green.

Will it be a jeweler, may be cell phone (i.e., Cricket) store?

Nope. Roddie

https://business.clovisnm.org/list/member/cheech-and-chong-dispesoria-6172.htm

Cheech and Chong are now selling wacky smokes in Clovis.

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From https://www.newswire.com/news/new-mexico-welcomes-cheech-chong-s-dispensorias-a-new-era-in-cannabis-22265094

Sorry! Razz

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