If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
|
Thread Tools | Display Modes |
#11
|
|||
|
|||
substitute aluminum for 4130?
"ChuckSlusarczyk" wrote in message
... In article om, Bob Kuykendall says... ... where it folds over and sticks to itself. AC43.13 change 2e will address the repair of duct tape laminates, with specific reference to brand-name materials that went off the market in 1974. Hmmm I guess we would need to know the section modulus as well and the moment of enertia of th section .Maybe a composite of duct tape and cardboard would give better stifness .Ahhhh the possibilities are endless :-) Chuck (tape 'er down boys tape 'er down ) S Actually, it should be the optimal substitue for Stitts fabric / Polly blah blah blah - Duct tape is both self stick and pre-finished... -- Geoff The Sea Hawk at Wow Way d0t Com remove spaces and make the obvious substitutions to reply by mail When immigration is outlawed, only outlaws will immigrate. |
#12
|
|||
|
|||
substitute aluminum for 4130?
As I remember , it was the substitution of alum. instead of AN Steel bolts
that caused a Thorp T-18 to lose a wing panel at the EAA International fly-in many years ago , would really want to do the numbers before I would substitute any material on an aircraft , just the opinion of an old A/C welder. Phil Lohiser Middlefield , Ohio "Robert Loer" wrote in message ... Plans call for wing spar to fuselage carry through attach fiitings to be 7/8x1/8 4130 steel. Advisability of using 9/16x 3/16 6061-T6 aluminum as I have it on hand. Your thoughts please. I have plans for another ship which uses the 6061-T6. Thanks |
#13
|
|||
|
|||
substitute aluminum for 4130?
Phil wrote: As I remember , it was the substitution of alum. instead of AN Steel bolts that caused a Thorp T-18 to lose a wing panel at the EAA International fly-in many years ago , would really want to do the numbers before I would substitute any material on an aircraft , just the opinion of an old A/C welder. Phil Lohiser I remember another that crashed because the builder used pop rivets in the spar fittings instead of the AD rivets the plans called for. Too many homebuilders have died because they made substitutions or other changes without the knowledge necessary to do it. The designer often has obscure but important reasons for the materials he specifies, and the naive builder doesn't realize the peril he creates for himself and others when he decides that he knows it already. Dan |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Question about Alodine 1201 | Andrew Sarangan | Home Built | 20 | April 11th 06 01:31 PM |
Aluminum vs Fiberglass landing gear - Pro's and cons. | Bart Hull | Home Built | 1 | November 24th 03 02:46 PM |
Aluminum vs Fiberglass landing gear - Pro's and cons. | Bart Hull | Home Built | 2 | November 24th 03 05:23 AM |
Aluminum vs Fiberglass landing gear - Pro's and cons. | Bart Hull | Home Built | 0 | November 24th 03 03:52 AM |
Aluminum vs Fiberglass landing gear - Pro's and cons. | Bart D. Hull | Home Built | 0 | November 22nd 03 06:24 AM |