Shock Cords

[peerlesscowboy]

Just looking thru' my new Wag Aero catalog. Shock cords, Taylorcraft, applications for different models.

According to the chart, "All model B series prior to 1946" should use # 9090. Sounds like MY 1940 BC-65? 9090's won't even hold the airplane up EMPTY (I've tried 'em).
9010HD, meant for "BC12D, BC12085, BC19" work better & 9010HDX, meant for "F-19, F-21" work even BETTER.
I've never tried 9010HDCW's (cold weather), are they similar to 'HDX's?

I guess mostly what I'm wondering is, does the TC call for specific shock cords for each model or is this applicability chart in the catalog just recommendations? I'd bet I'm not the only guy with 9010HDX's on my pre-war "B" model & a "like new" installed once and then removed set of 4 9090's hanging on a nail in the back of the hanger?

John C. Saubak

[Dano"T"]

Re: Shock Cords

I can't use the 9010 on my 1940...they are an inch too long. There is an inch difference between the pre war and post war T-Craft bungies. I tried a set of 10's and they could be pulled on and off by hand.

[VictorBravo]

Re: Shock Cords

I can't use the 9010 on my 1940...they are an inch too long. There is an inch difference between the pre war and post war T-Craft bungies. I tried a set of 10's and they could be pulled on and off by hand.

Do what exactly do you use on your pre-war Dano? Which porridge is not too hot and not too cold?

[Dano"T"]

Re: Shock Cords

9090 is what I use...Is my plane different? or am I just plain wrong on this??? I have been before.

[flyguy]

Re: Shock Cords

IMHO Dano, if it works, it can't be wrong. Bad ideas, even if they are called regulations, should be ignored (or at least circumvented.) Kinda like politicians an bureaucrats. Misinformation is rampant out there. Systems and most other endevors of man are inherently failure prone and only function thru repeated timely intervention of individuals in the front lines (ie with their a** at stake.)
End of Philosophy 101.
I've used the HD's on three different Tcarts and they all worked really well, but then I don't land on boulders like some guys apparently do. Mine were all 12D's.
Darryl

[Dano"T"]

Re: Shock Cords

I only know that I put 9010's on my 40' BC-65 and they were too long...I could litteraly pull them off by hand. I went to the 9090 and they fit....If I'm not mistaken the pre war has 9" and the BC12D had 10" from gear post to fuselage post. I believe that is what the 9 and 10 stand for in the part numbers.

[Dano"T"]

Re: Shock Cords

I did a Forum Search and found THIS

[flyguy]

Re: Shock Cords

Interesting, I'll tuck that away for future reference.
DC

[Forrest Barber]

Re: Shock Cords

I really like that when folks read the book..... the 9090 is 9/16 cord & 9 inches around. The 9010 is 9/16 cord & 10 in around....
Sooo that fellow with the pre-war and using 9010 must have a changed or substitute fuselage. remember for those stout at heart we have the 1110 ; Yes that is a 11/16th cord 10 in. around... They are for the F-21B & F-22 at 1750 Gross.... also used on the Goodyear Blimp Factory should have them and Tom O'Neil at Wag-Aero will ahve them very soon!!
9010HD & 9010HCW are just stout 9010's I use the 9010 HD...
I have heard that some folks may re install a third cord over both of the new ones.

[VictorBravo]

Re: Shock Cords

I really like that when folks read the book..... the 9090 is 9/16 cord & 9 inches around. The 9010 is 9/16 cord & 10 in around....
Sooo that fellow with the pre-war and using 9010 must have a changed or substitute fuselage. .

So is there such a thing as 1090... 10/16" (5/8) thick and 9 inches around? What do you use on a 776 pound empty weight pre-war airplane that has just been STC'd to 1280 gross... with a fairly well-fed pilot or two in the seats?

[Forrest Barber]

Re: Shock Cords

They ( Superior Bungee) will build you anything you need!! Never heard of a 1090 Piper has lots of weird stuff ( to me) 1080 1280 etc... the number system is the same check your part 43... The ears on the pre-war are not very wide , maybe try a 9090 with a 9010HD over top?? Whats 80 lbs among friends?

[Karl Rigdon]

Re: Shock Cords

Nearly 30 years ago the IA I had at that time was a long time Taylorcraft mechanic and instructor. He told me to save the best of the old cords and install over the new cords. I have done that since then and while stiff I think it helps handling and make cross wind handling much easier. With a couple of 200 lb people on board it does not change handling on the ground. The gear does not spread as it will with 2 cords.

[paulnuss]

Re: Shock Cords

It must be quite a trick to remove, in useable condition, an old shock cord. I don't think I want to save them, I was just wondering how does one do that? I have always destroyed the old cords when removing, by cutting them.

[peerlesscowboy]

Re: Shock Cords

Installing and removing the shock cords without damage is NO problem with the proper Taylorcraft shock cord tool. I've still got the home-made tool my father made for the task prob'ly fifty or sixty years ago. Works like a dream! I've never seen a fact'ry made tool for this but I assume there must be one?

John C. Saubak

[Forrest Barber]

Re: Shock Cords

Old cord removal is very easy, guts & a large round bar. OR use the Taylorcraft Shock cord service tool, not the big one that is used at the factory... Justr sold the last factory one here , went to Alaska...