The last time I changed the canopy on my AA-1B (some 20 years ago) they were at that time recommending to use a product similar to Proseal to bond to the bow, as the original Dow Corning primers (1200 & 1205) became very hard to obtain.
I did the install with that material and after about 5 hours the canopy started debonding from the bow. I…[Read more]

Using LP Areoplastics windshield. so will be using per the instructions. PR142 adhesion promoter (Primer) and the 2 part polysulfide B-2 bonding adhesive. Either 890 b2 or the one sold by Flamemasters. I believe either will work. Finished the final trimming and fitting today, have not drilled any holes yet. Roscoe has a good video out there…[Read more]

Looking good. What did you use to bond the windshield to the bow?
Interesting fixture attached to the engine mount extrusions, I assume this allows the fuselage to be rotated upside down?

New windshield fitment….Canopy is next.

OK got it but I have noticed a lot of hissing in the background. Doesn’t seem to affect communication but very annoying. Is this a sign that my radio is going or something simple. I talked to TKM but they no longer support this 170B. Does anyone know of a place that I could talk to that could help?

Depending on year, it could be delam of the scupper against the tank skin. Pull fuel out in flight when h near full. From your o-ring part of the story I assume 79 or late 78 bird with flush caps.

To finalize, it was the voltage regulator.

Hi Doug:
Just read this thread and want to thank you for detailing your issue, very informative.
I also had an issue with my charging system. Battery was discharging and I lost full electrical in flight a couple of times. I replaced the battery and flew fine for some time. Always saw a charge at run-up, but would later have electrical issues in…[Read more]

While I would never suggest taking business from Yankee, as they probably know most about our planes, there is a shop in Rensselaer, IN called Excel Air that is very knowledgeable regarding Grumman aircraft. Rensselaer is about 50 statute south of Gary, IN. Depending upon where in the UP you are, it may save on travel time.

A picture of me when I was told I won the auction taken by my brother. That is me on the right with the huge grin….

great tip. Thanks.

Scott