I have a J3 Cub that I am certain is an E-Flite product J3 Cub 25 Arf. I bought the plane used, and its in great shape except for the cowling, which appears to be fiber glass and is cracked and crumbling in places. The E-Flite product has been discontinued for at least 5 years, and I've searched high and low for a new cowl.
Searching eBay for something close, I came across this Ebay 40 Cowl which looks to be a good match. However, its described as a Cub 40 while I have a Cub 25. Researching what differentiates something described as 25 versus 40 has been confusing. 25 appears to refer to an electric powered air plane while 40 refers to a gas powered plane and has something to do with engine displacement. It also appears that 25 and 40 can both refer to electric motors. Neither of this is helpful to me in determining whether or not a certain cowl is useful to me. I can't find many links where cowls are described with width/height/depth measurements. I had hoped that searching for other manufacturers using wing span size might work, but that hasn't proved successful either. The wing span of my Cub is 60", or 1520mm. I know I could try and find a cowl for a 1600mm wing span Cub, but I can't rally forecast whether or not that would be significantly out of proportion for my needs.
Can anyone provide any insight as to what options I have. Would a 40 size work on a 25 size aircraft? If not, is there a way to construct another cowl using the ugly one I have as a mold?
depending on the damage it can be repaired ,go to the hobby shop and buy some medium fiberglass cut some pieces to cover the cracked areas and use ca glues to glue the fiberglass to the inside of the cowl ,thin and medium ca or both will work ,then you can use spot putty to fill the cracks on the outside of the cowl ,once dry sand and paint .i have done this to repair many cowls .the cowls you are looking at on e bay, if the sizes are the same the original and will fit on the plane right then it shouldn't matter
Admin: I am looking for an eighty inch Cub, made by Sig. I saw one at the swap meet in London, but got distracted and it got away from me. I heard someone stole it for a paltry sum of $175.00.
Oct 29, 2019 16:48:21 GMT -5
agn: How do you get the post under " Building Tips"
Nov 2, 2019 23:03:04 GMT -5
agn: OK here goes, Dont't quite understand the process yet!
Nov 3, 2019 13:35:09 GMT -5
agn: The most useful tools I make are sanding bars. I use white pine wood of many sizes, if you have an old saw blade, cut them after gluing sand paper of different grades to the wood.Long ones short ones thin ones etc.
Nov 3, 2019 13:40:10 GMT -5
agn: I also used paint mixing sticks and broken propellers for compound curve sanding.You can use any glue but some need to be weighted to keep the sandpaper to the surface while curing/ drying.
Nov 3, 2019 13:43:13 GMT -5
agn: Also If you have a tube light , 8' is nice you can parallel the light with your work , a wing leading edge, sand and rotate it to check how the shape is working out. Longer blocks work well for this starting with course grain to finer grain sand paper.
Nov 3, 2019 13:46:30 GMT -5
don: Hi AGN go to building tips . Click on that then scroll over and create a thread.
Nov 3, 2019 19:59:06 GMT -5
les: Davis instruments has a selection of weather stations with an option for cellular data upload to the internet. $1500 US , data plan extra.
Nov 21, 2019 12:47:07 GMT -5
RICK: see if this works
Jan 7, 2020 15:55:21 GMT -5