E-Flite F-4 Phantom P-20 turbine conversion
#1

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At BITW last year I almost drug John Redman so I can steal the demo E-flite F-4 he brought to BITW. I got a chance take a look really close and scatch my head. How I'm goes to do this with Jetcat P-20.
Well the week before I got my in. I'm just like the kid can't wait to open the box.
Stay up really late finish in 13 hrs with all the mod I put into so to make it work for turbine.
But I finish with E-power first for the maiden.
Well the maiden when bad. The motor got short out right before take off. Too late to abort. So it when in the puddle of water and mud.
Damage the wings.
Get home and looking around for another kit. Lucky one the member on Groups had one he willing to sell. I jump on it and got in 4 days later.
Once again. Work all night to get it fly on sunday.
I got two flight on sunday. Still working on the landing first two flight. Yesterday got another flight and she is dial.
Here is the video tell my story.

[youtube]http://www.youtube.com/watch?v=lt4Fd57fzjU[/youtube]
[youtube]http://www.youtube.com/watch?v=bKiJNm7iNu0[/youtube]
#6

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This F-4 actually is very easy to convert to turbine.
I break out the former to fit in 2 sullivance 10 oz tanks.
Making new former to mount the turbine and pipe.
I move the elevator and rudder servo to the rear. The stock are on the fiberglass ducting. That got to goes out.
It is very tight in the office. But it can be done and still kept right on C.G.
BTW, I flew at 6.25" and it take off really nice and much easy to slow her down to land.
Now I really enjoy flying it.
Can't wait to fly her again next weeken with all the upgrade undercarriage.
I break out the former to fit in 2 sullivance 10 oz tanks.
Making new former to mount the turbine and pipe.
I move the elevator and rudder servo to the rear. The stock are on the fiberglass ducting. That got to goes out.
It is very tight in the office. But it can be done and still kept right on C.G.
BTW, I flew at 6.25" and it take off really nice and much easy to slow her down to land.
Now I really enjoy flying it.
Can't wait to fly her again next weeken with all the upgrade undercarriage.
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ORIGINAL: AndyAndrews
He build for you for $350!
ORIGINAL: wojtek
very nice work Tam ! that little pipe is neat ..
~V~
very nice work Tam ! that little pipe is neat ..
~V~
Tamjets 2nd generation is in training.
When he taking my place. You guys better be ready. He will charge a lot more.

I can't wait to sit back with Ali and watch Sean fly, buitl and bring in the dolls.
[youtube]http://www.youtube.com/watch?v=4Hqcc17p8x0[/youtube]
[youtube]http://www.youtube.com/watch?v=TIonaZt-Zys[/youtube]
#12

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ORIGINAL: AndyAndrews
Very cool Tam! It must have very high wing loading to have to land so hot.
Very cool Tam! It must have very high wing loading to have to land so hot.
IT way too nose heavy.
My third flight I move it back 6.25".
IT slow down much better and high alph coming for landing.
Take off weight over 8 lbs it had plenty of power from the P-20.
Landing weight 7.3 lbs with 4oz reserve for 2 goes around.
#13

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Way cool Tam,
Ok feed us some info. What would be the weight and TOW (Full of fuel) with P20 Setup? Whats going to be in your upgrade kit, would you include the former and rear servo plate? What would be the ideal undercarriage? I am assuming anything over 7lbs will need stronger gears than the EFlite plastic stuf.. where you able to clock it, what do you think is the top speed with P20?
this looks pretty awsome TAM.
Jason
Ok feed us some info. What would be the weight and TOW (Full of fuel) with P20 Setup? Whats going to be in your upgrade kit, would you include the former and rear servo plate? What would be the ideal undercarriage? I am assuming anything over 7lbs will need stronger gears than the EFlite plastic stuf.. where you able to clock it, what do you think is the top speed with P20?
this looks pretty awsome TAM.
Jason
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ORIGINAL: F4dar
Way cool Tam,
Ok feed us some info. What would be the weight and TOW (Full of fuel) with P20 Setup? Whats going to be in your upgrade kit, would you include the former and rear servo plate? What would be the ideal undercarriage? I am assuming anything over 7lbs will need stronger gears than the EFlite plastic stuf.. where you able to clock it, what do you think is the top speed with P20?
this looks pretty awsome TAM.
Jason
Way cool Tam,
Ok feed us some info. What would be the weight and TOW (Full of fuel) with P20 Setup? Whats going to be in your upgrade kit, would you include the former and rear servo plate? What would be the ideal undercarriage? I am assuming anything over 7lbs will need stronger gears than the EFlite plastic stuf.. where you able to clock it, what do you think is the top speed with P20?
this looks pretty awsome TAM.
Jason
Working on the complete package. The machine are running right now making struts for it.
The wood former I had trace and made the copy for customer to cut out or if I had it cut than be extra $$$$.
The E-flite 15-25 retract work just fine with my upgrade parts.
I'm the best pilot demo how good the gear are with my upgrade struts and trunion.
Another week I should everything together for complete turbine conversion with undercarriage.
Here is few demo video of the E-flite 15-25 size gear with out upgrade parts.
The L-39 and the Viper Jets weight over 11 bls.
Watch the slam carrier landing on this video.
[youtube]http://www.youtube.com/watch?v=uLVhMcqVMR0[/youtube]
[youtube]http://www.youtube.com/watch?v=pUI1JyduJVc[/youtube]
[youtube]https://www.youtube.com/watch?v=7CxR-v7evvM[/youtube]
[youtube]https://www.youtube.com/watch?v=_ed0E2R89G8[/youtube]
#15

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Hard landing with 15-25 size E-flite retract.
https://www.youtube.com/watch?v=7CxR-v7evvM
https://www.youtube.com/watch?v=_ed0E2R89G8
https://www.youtube.com/watch?v=7CxR-v7evvM
https://www.youtube.com/watch?v=_ed0E2R89G8
#16

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Nice work Tam. $400.00 buy a lot of green bottles. Or you could bring it to Tecumseh,Nebraska and show us how it is done in Cal.
Mark said dancing girls across the street from flying site. You go their we fly your F-4.
Do you have any trouble with your P20-shutting down when you bring it to Idol?
Mark said dancing girls across the street from flying site. You go their we fly your F-4.

Do you have any trouble with your P20-shutting down when you bring it to Idol?
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ORIGINAL: drdoom
Nice work Tam. $400.00 buy a lot of green bottles. Or you could bring it to Tecumseh,Nebraska and show us how it is done in Cal.
Mark said dancing girls across the street from flying site. You go their we fly your F-4.
Do you have any trouble with your P20-shutting down when you bring it to Idol?
Nice work Tam. $400.00 buy a lot of green bottles. Or you could bring it to Tecumseh,Nebraska and show us how it is done in Cal.
Mark said dancing girls across the street from flying site. You go their we fly your F-4.

Do you have any trouble with your P20-shutting down when you bring it to Idol?
Dancing girls must had wings.
Otherwise I had no interest.
My P-20 been running flawless and got about 50 flights in between few planes.
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ORIGINAL: AndyAndrews
OMG, you mean Sean is gonna cost us more $$ than Tam one day LOL TAM version II? Well worth the money so I pay!!
OMG, you mean Sean is gonna cost us more $$ than Tam one day LOL TAM version II? Well worth the money so I pay!!
Really I want him to have a career not what I'm doing.
Work a lot hour and thinking what I next my projects I can made for small industries.
Some idea is great...but not enough market to make me rich.

#22

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Just put in 3 more flights today. Got her dial in and landing was much easier.
Even with 20 mph gusty and cross wind.
Here is today video.
[youtube]http://www.youtube.com/watch?v=xzce3i8sLv8[/youtube]
Even with 20 mph gusty and cross wind.
Here is today video.
[youtube]http://www.youtube.com/watch?v=xzce3i8sLv8[/youtube]
#25

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Last night just clean up my plane and notice my turbine wheel is tight and it hard to spin over.
Took the engine and clean the dirt built up and fire her up.
Wow, I been flying with less power all this time.
As usual....me only fly. Didn't check my RPM because the engine been running many cycles not thinking had any issue.
Anyways there is more speed this F-4 can do.
Took the engine and clean the dirt built up and fire her up.
Wow, I been flying with less power all this time.
As usual....me only fly. Didn't check my RPM because the engine been running many cycles not thinking had any issue.
Anyways there is more speed this F-4 can do.