Mazb,
I did mine so it would be easier to set with my finger. When I considered using a servo I was gonna either route the flexable control rod from the other side and come across the firewall or put in a bellcrank similar to my throttle. Or both.(Brison Engine)

The first option I mentioned would allow you to use the servo mount on the other side of the tray.

I didn't want to modify the arm in case I want to sell it in the future and I have an optical kill switch for a positive way to shut down remotely.

Originally I had a manual choke but decided to change to a servo controlled choke on my BME 50. Happy I did it. Now I have another way to shut off my engine in case of an emergency. The other way to shut off the engine is with the throttle cut off switch. I had the parts and this way was a lot less expensive that buying an fiber optical kill switch.

Here's how I did it. Choke servo on port (left) side of fuselage and throttle on starboard (right) side of fuselage. No problem routing the the Sullivan Gold-N-Rod #504 to the Prather control arm with set screw, across the fuselage, 24 inches away. You have to grind (Dremel) off the old linkage in order to install new control arm. I have a Futaba 9C transmitter and I'm using channel 5 for choke control. Set up switch G for servo control. Be careful if you use this switch because it has 3 positions. The retrofit took about two hours and half that time was waiting for the epoxy to set. Good luck. Russ

Here's a peek inside the fuselage. There are as many ways to install a servo controlled choke as there are Patty's but this is just one way that has worked for me.

What $350.00? For choke and throttle it would be only $70.00

Roger, I think Basin Bum meant he only paid $350.00 for his Patty and didn't want to overkill and spend another $70.00.

RCGuy1,

I just got back home from a business trip and noticed your post. My new Patty has the right color paint on the canopy and looks very good.

Andy

I used the DuBro low bounce 4" wheels. They worked perfectly with no cutting required.

Andy

232Cap-Tain,

I have two brand new sets of wheels for the Patty that I will not be using. E-mail me and we can work something out.

Thanks,

Andy

Peter,

I think you are referring to my Photo.

Andy

I am mounting my choke and throttle servo on the engine box for my H9 Cessna 182 Skylane. I am worried about interference, so I purchased some optical servo extensions from Roger at Aerografix. I think they will work just fine.

Andy

Got you , now it makes sense. Thanks

Could someone enlighten me as to the need for optical kill switches? I can kill my engine in flight or on the ground by closing the throttle all the way and if that should fail I could use my choke servo. Even if I didn't have the ability to close the trottle all the way or the choke servo I still see no problem. I removed the 24 ounce tank and installed a 16 ounce tank it's place, so breaking a throttle arm and having to fly forever is no issue either. I've been flying for 20 yrs and have never had a throttle linkage break yet. What's the deal?

I can kill mind with choke or throttle so i have no need for kill switch thats just anyother thing to go worry and kept you from starting up is the way i see it. good luck
James

Fancman, if you have a throttle choke, there is no need for an optical kill switch. If you read and understood my post, I had the parts for the choke servo and opted for this instead of the optical kill switch. Having two different ways of shutting your engine down in flight, I believe is more than sufficient.

How many minutes of flight time do you receive with the 16 oz tank and what engine are you using? I'm thinking of going to that size tank. Right now I'm using the stock 24 oz tank and always land with more than half a tank left. My BME 50 uses about 10 to 12 ozs. per flight. No need to carry the extra weight.

I HAVE A PATTY WITH A FUJI 50 WITH NO SOFT MOUNTS , VERY LITTLE VIBERATION . MY ENG . IS 4.2 LBS , GETING STRONGER EVERY WEEK . EASY TO START YOU JUST HAFT TO GET THE GAS TO THE CARB. I AM WORKING ON PATTY NO. 2 MOKI 2.10 .. ANY HELP ....????

Yes, read back a few pages and get a BME instead of the MOKI.

rcguy1,
I have a BME 50 and the 16 ounce tank gives me plenty of flight time. I haven't actually timed it but with this engine there is little need to fly at over half throttle ever with this airplane so I'm still surprised when I land and have a little more than a quarter tank of fuel left each time.

Slingshot the Fuji 50 according to my calculations is not 4.2lbs. I'm not trying to beat you up on your engine choice, so please don't take this personally. Here are Tower's specs on the Fuji:

SPECS: Displacement: 46.5cc "50cc" (2.84cu in)
Bore: 32mm
Stroke: 43mm
Horse Power: 5.2 HP / 10,000 rpm
RPM: 1,200 to 10,000 rpm
Ignition Style: CDI Automatic Ignition Timing
Weight: 2.4kg with muffler (2.1kg w/o muffler)

Since there are 2.2 lbs per kilo and don't ask me how I know that conversion , and I hope you are using a muffler, 2.4 kg x 2.2 =5.28 lbs. But then Tower could have published the wrong weight but I doubt it.

I hope your joking about the Moki 2.1.

PS: How does one get 10,000 rpms out of this engine? Install a 11x6 prop run it once and blow the engine up or what? 10,000 rpms on this Fuji 50 (it's realy a 46.5cc) engine, never happen.

Here is an update from Sandor on the Turbo Patty. Good luck Sandor:

i can see you are just as impatient as me
well i finisched her yesterday i still had to sort out lots of small problems like:

fuel tanks especialy i need a closed system for aerobatics
CG balancing
total weight

well as for the fueltanks i think we have it solved , i used 2 x 1 liter plasmabags put them just behind the wingtube
used a festo fast release for fueling the plane

Balancing WOW i was just on the spot balanced it and was just perfect leaving the 2 batterys for the rc just behind the servo tray
now for the moment i fueled her up completely to see what would happen with the cg well........ it stayed almost the same she just came up a little but still with nose down , so i was right on the spot

total weight!! 7.8 kilo,s!!!
well that i did not expected since i reinforced the patty , adding 6 3300 MAH cells for the start and fuel system
so she is just as heavy as my other patty wich is actualy with the smoke system 8.1 kilo,s
so i will be under 10 kilo,s fully fueled

this week will be the maiden flight...........................


__________________
Vini Vidi Evolo! mmmmmmmmm
at least that is what i try


Last edited by Sandor on 06-23-2003 at 4:51 AM

I aready have a moki 2.10 new in the box , Iwould love to have a BME 50 on my no.2 patty if i had to do over. The fuji 50 with a 20x10 pro zinger pulls patty good at 7400 RPM .rcguy your right 45.5cc. i have a b&b muffler with smoke. fuji 50 sb 4.2 lbs w/o muffler. all in all the fuji 50sb is a great eng. i would like to build the next patty with the tank on the cg . im using carben fiber rods, robart hinges , any other info would help. THANKS, YOU ALL HAVE A LOT OF NOLAGE HERE KEEP UP THE GOOD WORK.

Moki 2.10 NIB would sell quickly here or on E-Bay. The extra you spend will be saved in the first 50-75 flights not to mention paper towels and an oily Patty.

THANKS BasinBum. i might just do that .. It would be nice to have all that power to spair. the fuji50sb has great power but it takes little over haft trott. to hover , I cant hover yet but a friend can. maybe one day ....

Anyone have troubles yet using the stock tank for Gas? I picked up a Dubro Gas stopper but I don't know if it fits the stock tank yet......... Also in regards to the Canopy...... Are you guys re-enforcing the shield to the frame or just the mounting of the whole unit....... I have a dowel pin in the front and a connection on each side..... Should I leave the dowel alone and just install 4-40 threaded inserts on the bottom lower rear corners? I am unsure of the exact issue........ the shield to the frame seems rather strong.........
Thanks in advance

Aeromodeler,

Use the 4-40 screws on the tabs at the back. The whole assembly is pretty strong. Mine survived a major crash without coming off or getting dammaged.

Andy

Thanks Andy,
That's what I thought..... just wanted to make sure......
Could not find any problems with the entire unit....... it looks very strong ......