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Search: Posts Made By: jp1961
Showing results 1 to 25 of 115
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Forum: Engine Conversions
11-20-2013, 04:04 PM
Replies: 1
Views: 928
Posted By jp1961

I haven't converted an Echo weed*wacker or hedge...

I haven't converted an Echo weed*wacker or hedge trimmer, but I have converted an Echo chainsaw (30 cc). *Echo makes a really good engine. *I'm not sure of the thread size on the Echo, most hubs I've...
Forum: Gas Engines
11-18-2013, 03:55 PM
Replies: 5
Views: 469
Posted By jp1961

I have a VERY old modeling magazine. There is an...

I have a VERY old modeling magazine. There is an article in it regarding Quadra engine. *This is a quote from Klaus Nowak (marketing manager for Quadra). "Well, our engines are not sensitive to...
Forum: Profile and Fun Flying Planes
11-11-2013, 03:34 PM
Replies: 8
Views: 3,503
Posted By jp1961

I built the SIG Fazer, very*similar. *I have a...

I built the SIG Fazer, very*similar. *I have a Norvel .40 on it (plenty of power). *I had to add some tail weight to balance it (I HATE adding weight to a plane to balance)..If I had to build a...
Forum: Engine Conversions
11-09-2013, 03:58 PM
Replies: 22
Views: 3,807
Posted By jp1961

I was told if you use E-85 + oil, you don't need...

I was told if you use E-85 + oil, you don't need to change to a walbro carb. *

Jeff
Forum: Engine Conversions
11-08-2013, 01:48 PM
Replies: 4
Views: 1,701
Posted By jp1961

Cheap electronic ignition?

I'm in the process of converting a 21cc Weedeater engine (among others). *I'd like to try using an*electronic*ignition on this one. *Who has the cheapest electronic ignition module for this engine?...
Forum: Engine Conversions
11-02-2013, 03:53 PM
Replies: 1
Views: 767
Posted By jp1961

Mounting an Ryobi old style

I'm*contemplating*mounts for a old style Ryobi (It's actually a Stihl, but looks *identical**to the Ryobi. I'm thinking of machining a Delrin ring 3/8" thick to the front of the case (using the...
Forum: The Clubhouse
10-13-2013, 01:44 AM
Replies: 24
Views: 2,122
Posted By jp1961

Just sitting here cerebral typhooning (brain...

Just sitting here cerebral typhooning (brain storming), how about J-B welding some ping pong balls to your gimble sticks. *This would give your more leverage along with having a larger diameter...
Forum: Engine Conversions
10-12-2013, 03:18 PM
Replies: 10
Views: 10,654
Posted By jp1961

I converted an Echo chainsaw engine (30.1 CC). I...

I converted an Echo chainsaw engine (30.1 CC). I left the shaft on but removed the pump assembly. *I left it on*because*I though removing it was too much work. *Besides I thought the pump could be...
Forum: Composites Fabrication And Repair
10-07-2013, 02:50 PM
Replies: 47
Views: 7,982
Posted By jp1961

Gary, West system epoxy sells a small...

Gary,

West system epoxy sells a small booklet called vacuum bagging techniques. *It's a pretty good reference on getting started in vacuum bagging. * The initial cost can be high (vacuum pump...
Forum: Composites Fabrication And Repair
10-05-2013, 08:21 PM
Replies: 47
Views: 7,982
Posted By jp1961

Gary, Balsa is the lightest wood you can use...

Gary,

Balsa is the lightest wood you can use for skinning a foam wing. Obeche is used in europe, because either they can't get balsa or it's too expensive. *From a weight perspective here is a...
Forum: Composites Fabrication And Repair
10-04-2013, 03:58 PM
Replies: 47
Views: 7,982
Posted By jp1961

pic of the engine

pic of the engine
Forum: Composites Fabrication And Repair
10-04-2013, 01:31 PM
Replies: 47
Views: 7,982
Posted By jp1961

I picked up two cans of 3M Polystyrene spray...

I picked up two cans of 3M Polystyrene spray adhesive (#78) from Menards for 10.99 each. *One can was barely enough to attach the Birch veneer to my wings. *Each wing is 31" long (62 total), 17" wide...
Forum: Composites Fabrication And Repair
10-03-2013, 02:30 PM
Replies: 47
Views: 7,982
Posted By jp1961

I not sure if 1/64 birch plywood would weigh more...

I not sure if 1/64 birch plywood would weigh more than .023" birch veneer, i suspect the glue used to laminate the plywood would add considerable weight. *Prices based on a 4' x 8' sheet are as...
Forum: Composites Fabrication And Repair
10-03-2013, 12:55 PM
Replies: 47
Views: 7,982
Posted By jp1961

An*excellent*book on the topic of making foam...

An*excellent*book on the topic of making foam core wings is "Radio Control Foam Modelling" by David Thomas. *Shows all sorts of tips and*techniques, paperback. I don't think foam core wings will ever...
Forum: Composites Fabrication And Repair
10-02-2013, 11:11 PM
Replies: 47
Views: 7,982
Posted By jp1961

The wingspan is 63", wing area 1080 sq inches....

The wingspan is 63", wing area 1080 sq inches. Woodcraft sells Birch veneer in 4' x 8' sheets rolled into a tube and they will ship to your house. *When I glued the veneer on, as I rolled the foam...
Forum: Composites Fabrication And Repair
10-02-2013, 03:02 PM
Replies: 47
Views: 7,982
Posted By jp1961

I forgot to mention a Homelite 25 cc weighs 4.5...

I forgot to mention a Homelite 25 cc weighs 4.5 pounds with prop and spinner so some of that 14.5 pounds is engine.
Forum: Composites Fabrication And Repair
10-02-2013, 02:28 PM
Replies: 47
Views: 7,982
Posted By jp1961

This plane came out at 14.5 lbs. *It...

This plane came out at 14.5 lbs. *It is*underpowered with a Homelite 25cc but it does fly. *I could have shaved 2 possible even 3 pounds if I did away with the wing tube, used a solid block of 4"...
Forum: Composites Fabrication And Repair
10-02-2013, 02:04 PM
Replies: 47
Views: 7,982
Posted By jp1961

Here is a pic of the wing and finished airplane ...

Here is a pic of the wing and finished airplane

Jeff
Forum: Composites Fabrication And Repair
09-30-2013, 08:45 PM
Replies: 47
Views: 7,982
Posted By jp1961

Gary, I used a standard 1.25" aluminum tube...

Gary,

I used a standard 1.25" aluminum tube you'd find at a hardware store or Home Depot. *Since I couldn't find a cardboard tube to snugly fit over it, I made a tube out of fiberglass and West...
Forum: Composites Fabrication And Repair
09-30-2013, 02:05 PM
Replies: 47
Views: 7,982
Posted By jp1961

i used Birch veneer (.023") from Woodcraft to...

i used Birch veneer (.023") from Woodcraft to sheet the wing of a fairly large profile plane with EXCELLANT results. Used 3M Polystyrene foam adhesive (#78) to attach the veneer to the foam. *I used...
Forum: Profile and Fun Flying Planes
09-23-2013, 01:11 PM
Replies: 3
Views: 1,578
Posted By jp1961

If you go with foam core wings, you really don't...

If you go with foam core wings, you really don't need plans. *After building a dozen or so kits, you'll already know what should work. *I built a fairly large Yak 54 without plans at all, just, yeah,...
Forum: Engine Conversions
08-31-2013, 02:40 PM
Replies: 13
Views: 1,463
Posted By jp1961

The backplate has a plug, with the same...

The backplate has a plug, with the same dimensions as the original. *I machined a slot similar to the original. *I'm assuming that wedge taken out of the backplate allows fuel/oil to lubricate the...
Forum: Engine Conversions
08-31-2013, 04:45 AM
Replies: 13
Views: 1,463
Posted By jp1961

Thanks (for both the positive comment and help...

Thanks (for both the positive comment and help with the image upload). *I machined it from a round piece of black nylon rod 4" in diameter on my lathe (Emco Super 11), then cut the flat areas with a...
Forum: Engine Conversions
08-31-2013, 03:22 AM
Replies: 13
Views: 1,463
Posted By jp1961

hopefully this picture uploads

hopefully this picture uploads
Forum: Engine Conversions
08-29-2013, 01:07 AM
Replies: 13
Views: 1,463
Posted By jp1961

I'm having problems trying to upload an image,...

I'm having problems trying to upload an image, will try again

Jeff
Showing results 1 to 25 of 115
 
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