dasquirrelisme

My Feedback: (81)

I ran across this picture last night and have never seen anything like this. I dont know anything about rc boats but this thing is awesome. Can anybody tell me anything about it?

coriolan

Could you link to were you found the picture, the engine is a small ignition(probably .19/.29 by the size of the plug)from the 40's. Most likely meant to run on ice or snow and not r/c, might have been free running or for tether which was popular back then.

dasquirrelisme

My Feedback: (81)

I wish I could remember where I got the picture from. I started to design my own today because I figured it was homemade. Its worth a try to see how well it works.

71dartswinger

looks like a airplane that they did speed runs with the GBee
it wont work for me no ICE or Snow in florida . looks sharp

dasquirrelisme

My Feedback: (81)

I found another pic and a brief description. It is a tether boat/racer whatever you want to call it. My design is going to use skis instead of rails and going to be bigger. I am also going to make it r/c .

coriolan

Looking at the second picture with plan in the backgroud, it might have been a kit from that period. Tether running was very big after WWII in the US (boats and cars) and is still done today with speed over 200 Mph for cars and a bit less for boats!

Johnk71

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If you are using skis, children skis work well, are lite and are inexpensive at Goodwill…. I built this 10 years ago….

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Altered1

Check out these fighting machines (Prop powered):

http://www.militaryphotos.net/forums...ero-snowmobile

dasquirrelisme

My Feedback: (81)

Hey John that thing is cool. How does it do on the snow? What size engine do you have in it?


Also I have never seen anything like those military vehicles you posted Altered.

Johnk71

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Thank You.. I just added a new prop (11x5) and the engine is only a .455. It had a smaller 3 bladed prop and was clocked at 45mph on snow covered ice. I just fixed the skis as I was a little anxious to get it running again, so I took it outback in the gravel lot. It had no problems with the newer prop gliding over the gravel and going up hill in the grass. But once I started doing 360’s they let go.. Oh Well! So I will have to see how fast it will go with the new prop…

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Altered1

Hey squirrel, I've had a wide and varied reading history

dasquirrelisme

My Feedback: (81)

Ok I spent 2 Saturdays drawing up some plans for the snow skier. I dont have any fancy CAD machine or anything so I drew it up on paper with a pencil. I got it far enough to start building. Everything on the plan didnt work out perfect but modifying it as I go.

Johnk71

Very Nice!

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What are you going to use for runners? I used skis mountedon landing gear that I cut in half mounted to with angle brackets. Send more picsas you go!  

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dasquirrelisme

My Feedback: (81)

Hey John didnt think anyone was interested in this so I havnt added anymore pics. The skis im using are for rc airplanes and im hoping they wil do the trick. Im sure I will have to make alot of changes since I have no clue what im doing . We did have 10 inches of snow but it all melted the last 2 days. Hopefully I can get it done for the next round of snow.

dasquirrelisme

My Feedback: (81)

A few more pics

Johnk71

Very Nice! Are you getting this in the air or keeping it on the snow/ice?

dasquirrelisme

My Feedback: (81)

Oh no its not going to be in the air. I know it looks like an airplane fuse but no wing or horizontal stab.

pinky_d_brain

Found it
http://www.ebay.com/itm/RARE-VINTAGE...p2047675.l2557

dasquirrelisme

My Feedback: (81)

Thats awesome you found it. Wow that thing is fast.

Johnk71

Good Find!

<xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <wontGrowAutofit/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument></xml>It looks awesome, and such a slick design, butafter tweaking my Zombie for some years now, the probability of disaster withthe “Power Ice Boat Design” is why they fizzled out?  Engine placement (your on the ground, not inthe air), ski size (good luck finding a perfect sheet of ice, you will havesnow and cracks to navigate over), length and width of skies (provide stabilityfrom engine torque and bumps), center of gravity (provides additionalstability), weight (you don’t wont it too light, unless you have reverse,stopping will be an issue) and liftoff (mounting the engine with a slightdownward pitch) are all issues I had to address. I am no expert, thus the name “Zombie”….  <xml> <w:LatentStyles DefLockedState="false" LatentStyleCount="156"> </w:LatentStyles></xml><style> Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;}</style>

Altered1

Hey john,

This is a tether version.... all those concerns are out the windown when using a tether ?

dasquirrelisme

My Feedback: (81)

I agree John, there is alot of stuff I wont know til I try it out. I have the back ski on a different channel than the rudder since I dont know how much the ski will actually steer it. If it ends up steering it good I will set both on the same channel. I am guessing I want most of the cg towards the back to keep from nosing over and helpwith the steering. Also my legs are set up high for snow clearance because it probably wont be on ice, just snow. If it ends up being too top heavy I have extra room to lower it thru the legs. The skis themselves are rated for a 10 lb airplane and I think this will come in at about 6 lbs.

All the snow has melted in the last few days so I am going to try to get it done before the next snow storm. Hopefully everything will work out and I wont have to do very much modifying to it but I doubt that will be the case.

Johnk71

All the snow is gone here as well. And the ice is fairly rotten. Good luck with your build, I look forward to seeing more pics and a video of your snow/ice plane.

dasquirrelisme

My Feedback: (81)

I made a little bit more progress.

vicman

My Feedback: (10)

This is a pretty cool thread. Your ship looks great!