PT-22 by Peter Rake - Page 6 - RC Groups
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Jan 12, 2013, 08:53 PM
wood is good
loNslo's Avatar
A beauty! 3rd photo is special. Nice.
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Jan 13, 2013, 04:41 AM
Registered User
Denny,
Glad to hear you're enjoying the model so much. You've done such a nice job of her too.

Pete
Jan 13, 2013, 08:24 AM
Cajun-American
Boogie_'s Avatar
Very nice plane Denny.
What was your AUW?


Julian
Jan 13, 2013, 08:31 AM
Wanted for breaking Ohm's Law
Dennis Sumner's Avatar
Quote:
Originally Posted by Boogie_
Very nice plane Denny.
What was your AUW?


Julian
Julian,

It weighs 36 oz and it powered by a Scorpion 3008/32. With a 10x5 I am seeing about 105 w/lb. A 9x7.5 gives 125w/lb.

Denny
Latest blog entry: RC Throw Gauge
Oct 31, 2014, 01:08 PM
Cajun-American
Boogie_'s Avatar
Maiden flight yesterday afternoon.
This plane has been finished (flight ready) for over a year with only the detailing left to be done.
Lurking around, watching these other PT-22 builds going on got me fired up to bolt the wing on and go fly her.

3.85 lbs AUW seems kinda heavy for this plane but it flies very nice.
4000 mAh batt probably not helping.
Had to had oz of weight to the tail to get the CG shown on the plans.

Landing was a non-event.


Ryan PT-22 / Peter Rake design (3 min 36 sec)
Oct 31, 2014, 01:40 PM
Senile Member
Lnagel's Avatar
Congratulations on a successful maiden. Looks like if flies quite well.

Larry
Oct 31, 2014, 02:06 PM
Retired and Lovin' it!
TPfingston's Avatar
Looks pretty fast actually. Gets little real quick. BTW, love the hat.

Tony
Oct 31, 2014, 03:49 PM
a.k.a Maltone
Pat Lynch's Avatar
Great stuff Boogie I may have to pull my finger out and slip a battery in mine!
It also just needs some detail - that can wait.
Pat
Oct 31, 2014, 08:26 PM
Registered User
Congratulations on being the first to fly one of these (that I know of).

4 lb isn't out of order on a model of this type. In fact, it sounds pretty reasonable to me, there's a lot of wood in there.

Well done on a nice looking model.

Pete
Nov 01, 2014, 06:12 AM
Registered User
SubManEric's Avatar
Congrats on the maiden. The plane looks fast and smooth. I love your answer to how long it will fly!

Eric
Nov 01, 2014, 07:09 AM
Registered User
JIMA's Avatar
Boy she does fly fast. Not at all what I expected. Great maiden flight. Looks like you had her dialed in perfectly. She should be a lot of fun when you start opening her up for some aerobatics.

Jim
Nov 01, 2014, 10:37 AM
Senile Member
Lnagel's Avatar
So Boogie, how about some photos of the covered PT-22. What covering did you use to simulate the aluminum fuselage?

Larry
Nov 01, 2014, 10:40 AM
Senile Member
Lnagel's Avatar
Quote:
Originally Posted by tpfing
Looks pretty fast actually. Gets little real quick. BTW, love the hat.

Tony
With enough power any plane can fly fast. What I would like to know from Boogie is how slow will it fly?

Larry
Nov 01, 2014, 10:59 AM
Cajun-American
Boogie_'s Avatar
Thanks guys.
Yes it almost flew right off the board. CG felt good, and only needed 2-3 clicks of elev & ail trimming.

She's really over powered, 425W with an 11x7 prop.
During that maiden flight I never had it over half throttle, even on take-off.
Made three more flights and had a chance open her up. Very zippy in level flight and has a pretty tall vertical.

Handled mild aerobatics well and although I think it's still a fuzz nose heavy, it didn't need a ton of down elev to fly inverted.
Didn't mess with the flaps and still need to do some stall tests.
Also need to set my low rate end points on elev throw. I hate it when a plane will snap at speed with full up elev.

I think if a fella wanted he could build this plane very light by replacing a lot of the fuse ply with balsa.
A vac form cowl would help a lot too.
Plus a lighter plane would mean a smaller motor & batt.
Not that it was any trouble to fly.
I have some jets with a wing loading in the 40's so this was pretty tame.
But I would advise anyone flying at this weight/speed/power level to forego using the balsa filler in the wing-joiner. And make a tapered filler out of AC ply like I did.

But yeah, a great flyer and gets a lot of comments at the field. Hope to take it out again this afternoon if the winds cooperate.
Got a feeling this will be my go-to plane for a while.


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