bob turner

So, question, and comment: Question - what kind of breaker is good enough to allow starter current, yet protect from short circuit? Comment: ...

The wood spar fittings sure look easy to duplicate. Not sure of the alloy, but I would guess 1025. A good structural engineer might suggest 4130 -...

People up here are charging $250-$400 to rent PA-18's plus an extra $75-$200/hr for instructors. Tac-Aero does training in actual FX-3's for almost...

Me too. I teach turnbacks. We have target altitudes and direction of turn scoped out for each aircraft and each runway, and when possible fly...

So if the accident rate is 10% and the aircraft is roughly $200K, what kind of hull premiums do you think will be the norm? An experienced Cub...

And you guys know that there is an FAR on the subject allowing only four such flights per year without drug testing the pilots? And you have to give...

Too early to really tell, but I think it worked! Steve took the "stub-equipped" Cub up and I followed in the non-stub J4. Twice during our 20...

First, a public thanks to Frequent. His stub arrived in the mail Friday. I installed it and tested it yesterday (Saturday). It went in in about...

Agree. There are apparently four ways to attempt connection - I always get it right on the fourth attempt. Our J3s use the old Army Air Corps...

The brand W attaches to the center of the rear spar carrythrough. See posts above. Ours are located to the side like "longwinglover" above, and...

I check the altitude readout each flight when I plan to be under class B.

The old methods, above, are the best.

I was going to join the Stearman Society, but you guys are a wealth of information. Thanks! Is the "box" inside the starter?

Oh, yeah - I missed that in Fobjob's text. No washers!

This one ok?

Interesting thread. Is there anything that would prevent using elastic stop nuts (shear type) on those bolts, except for the obvious hole in the...

Nomenclature is important. Airplane Flight Manual - required to be on board. Pilot Operating Handbook - similar, but won't do - you need your...

Automotive. Be kind to that capillary. See Richard’s post on the J3 forum.

It is not quite as painful as that. Other than the 125.7 interference, these are the best radios I have ever worked with, the best displays, the...

Angle of incidence is different. The cub has a much higher empennage at the same angle of attack. Some say this is all of the speed differential. ...

It has happened way too many times around here - once resulting in minor damage. The Super Cub is in a flying club, and while the pilot group with...

Might ask yourself why the levers are missing. We have a Super Cub with valves safety wired open. We did not do that arbitrarily; there was a...

I'll go there in a minute. I can probably handle the math. Let me review: we discovered the frequency pair by noting, during Covid, that when one...

Really. I cannot measure the difference wheel pants on or off my Decathlon, and at 120 kts speed fairings are a lot more effective than at a...

Oh - of course - closer to 7". Yes, 257.875. Your source says it also attenuates odd harmonics. I guess a transmitter could overcome that? Unless...

Plenty of space. BNC - I think most antennae are Conant, but the J 4 may be a coathanger with ceramic insulator. I know how to convert that to BNC....

But more practically - the stock brakes could easily lock up. Why on earth would you want to apply more pressure than that? If you just apply...

His point is well taken, although I think I would have phrased it differently. I get to the airport and am usually so full of joy that I forget...

Never actually had to do the ride, but as I understand it there are four tailwheel-qualified 709 check airmen around. I guess they get TDY pay plus...