Demise of Lil Johnny Outhouse

Saturday, I attended a JMRC launch at the Michigan International Speedway. Although I brought a lot of rockets, I spent more time BSing than flying, but felt compelled to fly at least a couple of rockets after driving 100 miles to get there. First up was my 1/3rd scale FTBOD on a Pro38 2-grain H148SS. I chose this combo because it was a little breezy and I wanted something that was draggy. Great boost, nominal flight and recovery. For my second flight, I picked up a G38 from my buddy Bob and slapped it in my Lil Johnny Outhouse. When I was putting it on a blackened rail, I noticed that it stuck a bit. Instead of taking it off and not flying it, I ran it up and down the rail a few times to loosen it up and clean the rail a bit. Well, I should have followed my initial instinct and pulled it off because it came off the rod at too low of a velocity to fly stably, did a couple of loops and then power dove into the rock-hard clay....POW!! Pieces everywhere, not one reusable body panel or tube. User error 100%. Serves me right for not taking the time to clean the rail and do it right.

Mark Simpson NAR 71503 Level II God Bless our peacekeepers

Reply to
Mark Simpson
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Had the same problem with mine on a clean rail. Thought maybe it was me twisting it on the way down the rail. Same results on an F-40. Have requested replacement part for the shell and roof. $15 + $4 shipping and handling.

Dennis

Reply to
D&JWatkins

I have to build another one. I'll need at least one to serve as a prototype for my full-scale future endeavor. After LDRS, it looks like the first successful Port-a-john to fly honor is still up for grabs. Can you say "O" motor? >;-)

Mark Simpson NAR 71503 Level II God Bless our peacekeepers

Reply to
Mark Simpson

Interesting. Any idea how they got permission to use the facility? Someone suggested one of the CHicago area race tracks as a launch site, so some info here would be helpful.

So does everyone else. It's what makes the hobby fun. TO me NARAM is an annual family reunion. lots of friends I only see once a year. And it would be MUCH simpler if we didn't have to schlep along all that rocket stuff.

I saw one of these at NARAM. For any one but you, it struck me as overbuilt. Who sells these?

Bob Kaplow NAR # 18L TRA # "Impeach the TRA BoD" >>> To reply, remove the TRABoD!

Reply to
Bob Kaplow

Do *NOT* use the outhouse with the fins!

:-)

Bob Kaplow NAR # 18L TRA # "Impeach the TRA BoD" >>> To reply, remove the TRABoD!

Reply to
Bob Kaplow

I believe in my repair I will switch to regular rail buttons as I am not sure the three peice variety is not the problem.

Dennis

Reply to
D&JWatkins

I installed T-nuts instead of the multi-nuts they had in the kit. Faster, and I can swap out the railbuttons as need be.

Joel. phx

Reply to
Joel Corwith

I'm going to use oversized launch lugs in my next one. I think that part of the problem may be the plastic shell flexing and increasing the binding by distorting the relationship between the two buttons. A pair of oversized launch lugs will be more tolerant to small degrees of airframe flexing, IMHO.

Mark Simpson NAR 71503 Level II God Bless our peacekeepers

Reply to
Mark Simpson

Glad to hear someones flying, I've fallen off the face of the rocket flying earth since Three Oaks ;-) How was the turnout at MIS? I have already marked the calander for the September launch....no matter which weekend it is. I need to start using that newly minted L2. BTW, I got some great pictures from my L2 attemt at Three Oaks.

Steve Schafer NAR #80427 L2

Reply to
Steve Schafer

Using a P would be more in keeping with the outhouse theme! ;-) ..............Just a thought, with that flat roof what would happen if say 4 L motors are dropped on each of the corners(one per corner) and canted outwards at, say, 10 degrees.........would that give it a bit more stability and enough time to drop the little fella out the door?

Chuck

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Reply to
Chuck Rudy

Wouldn't that technically be the overpressurization of the bladder?? :-)

Chuck

Reply to
Chuck Rudy

FTR I don't want to see one of those :)

Reply to
Jerry Irvine

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