The International Cessna 170 Association

That's a possibility. Although, the pilot was able to float her in between 42 -45mph with no stall horn enunciation. On the other hand, given that the density altitude on that warm, Colorado day was 8500', the likelihood of these performance numbers being accurate is suspect. Can any of you with ex...

Del, thanks for the invitation, that's very generous. As for the imparting the load, whether it be compressive or torsional, what you are saying in fact reinforces my point. The stiffer spring, then, transmits more stress forward. I know you said the damage occurs in the mounting bracket, but as air...

Wow Del, you have the patience of a saint. :lol: Perhaps, however I'm one of the few that has been able to continue this discussion with out lashing out at or insulting other members. Del, now we're getting somewhere. Thanks for the data, although I cannot say I'm fully convinced. Firstly, I disagr...

So what basis you make your qualification statement on regarding it being the most stable with the 7.5 gals cap welded on to the existing tanks ? Wouldn't the role the 170 is going to serve have some influence on selection . It's a shame that you never talked with Harry Delicker . As a lot of other...

These aircraft are over 60 years old and most parts are not not available through the normal channels . So when replacing parts regards where they come from or the certification of these parts some thing called common sense has to prevail . Even some of the regulations are old and need up dating . ...

I have also found the "Northwest Mountain Region, Guide to Aircraft Alterations" a very good read, tho it looks like the FAA took it down off there site - I just happen to have a pdf version. Thanks for that Karl, that certainly provides some useful data. Given that it was produced by a F...

Del, while I appreciate your effort to actually consult the regulations while discussing them, I'm afraid full analysis of the copied (and annotated), definitions is not entirely necessary. I have yet to verify this, but the one of the very points you put in bold print: f. Changes to landing gear, s...

You know Bruce, I get it- the parts are similar, and the aircraft are related. However, that alone doesn't make the replacement legit, does it? To David, the factor I would be concerned with is added stress to the supporting structure. Many on here have related issues with the original Scott leafspr...

swixtt wrote:Or the 15gal stc from Chris.
I have the Bush stol kit on my 170sb

Swixtt, you're referring to the STC which allow a 7.5 gallon addition to be welded to each stock tank, correct? If so, that seems to me the best option as far as stability is concerned.

-joshua

Bruce, I may be wrong here, and I'll allow that (I am relatively new to aircraft maintenance after all), but wouldn't a tail leaf spring be covered under "landing gear"? Jim, I have never claimed to know everything, nor to have the "only answer". In fact I opened this post with a...

Thanks Swixtt. Jim, how so?

Oh. You're trying to start an argument. I understand now. There is no approval for installing an L-19 main spring on a 170. Nor is there approval for installing an L-19 eye bolt on a 170. Continue your sermon. You are inserting words into the regs, which makes a conversation with you impossible Hey...

All right man, then please feel free to ignore my posts on move on, as I will do with your hostile replies to mine.

David, I would like to hear your feedback on the topic too, if you have any. Otherwise, I don't see why you keep posting, as you haven't said anything yet.

"Title 14: Aeronautics and Space PART 43—MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING, AND ALTERATION Appendix A to Part 43—Major Alterations, Major Repairs, and Preventive Maintenance (a) Major alterations—(1) Airframe major alterations. Alterations of the following parts and alterations o...