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Old 06-09-2015, 07:25 AM
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Go as low as your comfort-zone
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Picture series Decathlon 150 Pilot 40% : GP 176ccm engine pics

Just for the info, some pictures of the Great Power GP-176 engine.





and the Aspen 2-stroke fuel I use in all my gasoline-models

as bought from:
www.gvgoliehandel.nl/de-de/marken/aspen
www.gvgoliehandel.nl/en-us/brands/aspen
www.aspen-benelux.nl/nl-nl/gebruik/modelbouw
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Last edited by 4unlimited; 07-23-2015 at 12:01 PM. Reason: additional pictures
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Old 06-09-2015, 07:38 AM
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Picture series Decathlon 150 Pilot 40%: Trial assembly and sub-total weights

Trial assembly, just to see the real size for the first time

Fuselage -as pictured on the table- 14,68 kg
(32.3 lbs if I'm correct)

Wings are 2,66 kg (5.86 lbs) and 2,64 kg (5.81 lbs)

Items to be installed: engine cowl, three-blade carbon prop, carbon spinner, wing struts, doors. I guess empty weight will be around 23kg (50.66 lbs)

In The Netherlands we have a max take off weight (regulated by law) of 25 kg (55 lbs)
Keeping in mind the bigger engine, navigation lights, pilot, some minor construction modifications and such . . . .
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Old 01-06-2016, 02:04 PM
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I had a intermittent problem with my engine not starting which plagued me for the entire season which was frustrating. So I ended up leaving it back at the hanger most of my trips to events. I finally figured it out when the same problem showed up on another airplane. Tracked it back to a programming issue on my transmitter So I never really flew it much till recently. Now that the issue is resolved, I've been doing some dynamic flight trimming and working out the bugs. I've included a video below.

The only real issue I have having now is the damn latches on the door and top hatch. They keep dislodging and I have to dig them out of the tail of the fuselage or replace them. I had to order a new top hatch on one flight when it departed in flight.

Other than the above, it flys great and I'm going to have a ball with it next season!!!

40% Pilot Decathlon 150" flight testing -...
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Old 01-06-2016, 03:04 PM
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Started reading post and watching vid, wondered who posted this.....WOW, Steve did, haven't seen that name for ages.
How are you, was in Boston over Thanksgiving.
Was it 03-04 Joe Nall we hung around a little.


Sorry for this post.


Nice plane and flying Steve


Roger
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Old 01-06-2016, 03:28 PM
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Quote:
Originally Posted by sfaust View Post

The only real issue I have having now is the damn latches on the door and top hatch. They keep dislodging and I have to dig them out of the tail of the fuselage or replace them. I had to order a new top hatch on one flight when it departed in flight.

Other than the above, it flys great and I'm going to have a ball with it next season!!!
I have well over 300 flights on mine.. I've also replaced the top hatch pins many times of the years, but I haven't lost mine YET.. LOL

You're going to love it!
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Old 01-06-2016, 04:36 PM
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Already love it Mike. Just need to fix the damn latch problems. Everything else seems solid. Watching yours fly at Westport got me motivated to drag mine out of the hangar and resolve the ignition issue to get it flying. Thanks for the motivation


Quote:
Originally Posted by Roger Russell View Post
Started reading post and watching vid, wondered who posted this.....WOW, Steve did, haven't seen that name for ages....
How are you, was in Boston over Thanksgiving.
Was it 03-04 Joe Nall we hung around a little....
Good to hear from you Roger! It was 2004, same year I was there writing/photographing for Fly RC magazine if I remember correctly. Good to hear from you. Going to Joe Nall this year? Considering the trip myself. Would be good to see you there.

Reply via PM so we don't hijack this thread
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Old 03-16-2016, 05:57 AM
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Just got my 40% Decathlon delivered yesterday. Seems pretty straight forward except for the cowl install. How can you install that cowl with the bottom bolts going into the plane from the front to the back, and the side and top bolts going in from back to front? How do you get access?

Thanks
Gary
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Old 03-16-2016, 06:00 AM
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Mike, it seems like you have a lot of experience with the 40% Decathlon. What is the best way to install the cowl. It looks like the bottom bolts go in from front to back and the side and top bolts go in from back to front. How do you possible gain access to the bolts from the back to front?

Thanks.


Hope you don't mind a few more questions as I get in to this build.

Regards,

Gary
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Old 03-16-2016, 09:43 AM
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Gary, I saw the same issue you did, and from past frustrations on different airplanes I decided I wasn't going to do that again!

I always liked the convenience of a split cowl for so many reasons, so I decided to go that route with the decathlon. It took more time, but it was well worth it IMO. The split cowl allowed me to use a more typical mounting method, better cowl ducting for cooling, and I don't have to remove the prop/spinner to remove the cowl for maintenance of inspection.

You don't need to split the cowl, and could easily add a couple mounting blocks to the firewall and mount the cowl in a traditional manner. Either method is better than as designed. I'm sure others with respond with alternate solutions for thought.
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Old 03-21-2016, 04:23 PM
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Quote:
Originally Posted by 2manyplanes View Post
Mike, it seems like you have a lot of experience with the 40% Decathlon. What is the best way to install the cowl. It looks like the bottom bolts go in from front to back and the side and top bolts go in from back to front. How do you possible gain access to the bolts from the back to front?

Thanks.


Hope you don't mind a few more questions as I get in to this build.

Regards,

Gary
Gary,

I reversed all of the blind nuts (except the top center one)

I created a allen wrench by using a 24" long carbon tube that the allen wrench fit into. I just cut off the L and inserted and epoxied it in there. I added a piece of glow fuel tubing over the allen to keep the bolt on. I drilled holes in the front of the cowl to push the allen wrench straight back to the bolts.. problem solved.
Worked great for me!

If you have questions, just ask...
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Old 03-21-2016, 04:26 PM
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Gary,

Make sure that you have a windshield support behind the windshield as it will flex back with wind pressure and crack in the top corners. I made mine... but Pilot may have put given it to you in the kit as Tony T. (owner of Pilot) watches this tread and makes adjustments from our comments.. He's a great guy who really cares about us.
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