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HPA
Hip Pocket Aeronautics Builder's Forum "III"
News:
Hip Pocket Aeronautics Plans Gallery up again:
https://hpa.aeromodelling.gr/plans/index.php
Members
- Total Members: 300
- Latest: kittyhawk
Stats
- Total Posts: 3,604
- Total Topics: 319
- Online today: 20
- Online ever: 73 (May 13, 2026, 10:14 PM)
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Recent topics
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BEAVER DH C2 no 2 30 IN RUBBER DUMAS KIT 306 Nov 25 2025 to PRESENT
by Jmk89
[Today at 08:10 AM] -
1/24 scale DH Mosquito for rubber power.
by gravitywell
[Today at 07:34 AM] -
Brewster Buffalo F2A-2 | Rubber Power
by Sky9pilot
[Today at 05:52 AM] -
American Jet Hustler
by OZPAF
[Today at 04:40 AM] -
Nearly completed........
by OZPAF
[Today at 03:59 AM] -
Torque Meter for Outdoor FFS
by Jmk89
[Today at 01:07 AM] -
300 members
by pb_guy
[May 14, 2026, 07:20 PM] -
Sikorsky S-39 "Spirit of Africa"
by g_kandylakis
[May 14, 2026, 04:40 PM] -
Easy Built Hellcat
by Piecost
[May 14, 2026, 12:55 PM] -
1919 Grahame-White GWE6 Bantam
by dputt7
[May 13, 2026, 05:30 PM]
Posts: 14
Topics: 3
Last post: Mar 13, 2026, 09:08 PM Re: Registering process ... by email
Forum Policies
Here you will find Guidelines & Policies relating to participation in the HPA
Posts: 31
Topics: 3
Last post: Apr 21, 2026, 08:16 PM Re: Limited scope of thi... by Konrad
Instructions
Some very simple instructions for first time users
Posts: 43
Topics: 9
Last post: Apr 21, 2026, 08:03 PM Re: TROUBLE WITH UPLOADI... by Pit
General Discussion
This board is for pretty much anything that doesn't belong in the other forums.
Posts: 341
Topics: 27
Last post: Today at 03:59 AM Re: Nearly completed....... by OZPAF
Introduce yourselves
We may know each other from the past. or maybe not. In either case, for those who want when joining here.
Posts: 148
Topics: 53
Model Aerodynamics
This is the section for discussions on aerodynamics that pertain to model aviation. Posts that make us think about the kind of aerodynamics that we deal with in model airplanes.
Posts: 48
Topics: 4
Last post: Apr 22, 2026, 05:17 AM Re: An In-depth explanat... by Konrad
Plans Gallery news
For any updates on uploads to the Plan Gallery
Posts: 75
Topics: 10
Last post: May 12, 2026, 09:21 PM Re: Newly added plans by g_kandylakis
Looking for Plans & Articles
Use this board to make requests for Plans or Articles you'd like to get your hands on. All categories of models qualify so be specific. Mention the Model class and Name of the plane in the subject line please. For Articles, the publication and date, the author too if possible
Posts: 32
Topics: 7
Last post: May 13, 2026, 03:57 AM Re: West Wings Westland ... by Jmk89
In the Work Shop
The set up, tools, jigs, glues, materials and anything else worth mentioning when it comes to the space where we build our models.
Posts: 64
Topics: 8
Last post: Apr 16, 2026, 09:58 AM Re: moulds materials ETC by nickhawk
Techniques
Various useful techniques for our models
Posts: 45
Topics: 7
Last post: May 02, 2026, 01:41 AM Re: Dummy engine "Lenape... by Robert McKellar
Your Birds In Flight
Post pictures of your models doing what they are built to do. Fly! Baby! Fly! (If a discussion regarding a model displayed in this forum is going to happen, please start a new Topic in an appropriate forum)
Posts: 60
Topics: 14
Last post: Apr 24, 2026, 10:32 PM Re: Guillows Fairchild 2... by Konrad
Event - Announcements & Reports
List your upcoming events in this board so that we all can be prepared to attend. Also, for reports and photographs afterwatds
Posts: 275
Topics: 16
Last post: May 10, 2026, 02:57 AM Re: May Welsh 23 - 25 ... by Pete Fardell
Postal & E-Postal Competitions
Announce current and future Postal/E-Postal competitions, submit Operational Orders, contact info and results from past Postals in this board.
Posts: 44
Topics: 5
Last post: Apr 08, 2026, 06:37 AM Re: 1960s Coupe d’hiver ... by G GRELL
General Discussion
Any topic that is scale in general that won't fit in the other categories
Posts: 41
Topics: 6
Last post: Today at 01:07 AM Re: Torque Meter for Out... by Jmk89
Scale, outdoor
IC, electric, CO2 or rubber powered free flight outdoor scale models.
Posts: 927
Topics: 20
Last post: Today at 08:10 AM Re: BEAVER DH C2 no 2 ... by Jmk89
Scale, Indoor (F4D, F4E, Kitscale)
Indoor Scale, open classes, rubber powered F4D or electric/CO2 F4E and Kitscale
Posts: 495
Topics: 26
Last post: May 14, 2026, 04:40 PM Re: Sikorsky S-39 "Spiri... by g_kandylakis
Peanut Scale
Perhaps the most popular scale ff class. All designs, ideas, development and history.
Posts: 204
Topics: 9
Last post: May 13, 2026, 02:33 AM Re: Back to flight, the ... by Anyun
Pistachio Scale
Even smaller yet and at 8 inches span it's a wonder they fly so well.
Posts: 1
Topics: 1
Last post: Dec 31, 2025, 06:52 PM My first attempt DH-60 G... by Pit
FAC Free Flight Scale
All FAC, Walnut, Peanut, Coconut, Jumbo etc.
Posts: 6
Topics: 1
Last post: May 07, 2026, 07:29 PM Re: Dumas Zero (As a tra... by Konrad
Dimescale / Pseudo-Dimescale
For topics on Dime Scale projects and kits from the WWII era when kits were so popular and resources were scarce.
Posts: 0
Topics: 0
No-Cal
All designs, ideas, development and history
Posts: 58
Topics: 8
Last post: Apr 25, 2026, 04:20 PM Re: Cessna Cardinal by Konrad
General Discussion
Any topic that is indoor free flight in general that won't fit in the other categories
Posts: 4
Topics: 1
Last post: Mar 20, 2026, 03:02 AM Re: Working on old Wilde... by dmcbride
F1D, F1M, F1L
The FAI Models
Posts: 4
Topics: 1
Last post: Feb 08, 2026, 02:18 AM Re: Swiss Championship ... by OZPAF
Penny Plane and Limited Penny Plane
The heavy models
Posts: 2
Topics: 1
Last post: Mar 01, 2026, 05:42 PM Re: Introduction to Penn... by lincoln
Bostonian
All designs, ideas, development and history.
Posts: 60
Topics: 4
Last post: Feb 07, 2026, 01:44 PM Re: Bostonian Beancraft ... by John Kourbanis
Capacitor Powered Indoor Models
As the title says, capacitor powered models for indoor flying.
Posts: 17
Topics: 6
Last post: Apr 16, 2026, 09:19 AM SUPERCAP 3D PRINTED WITH... by OZPAF
F1N - indoor glider in general
All designs, ideas, development and history.
Posts: 1
Topics: 1
Last post: Mar 02, 2026, 12:35 PM Suggestions for an all-b... by g_kandylakis
Legal Eagle
Any designs and development for the Legal Eagle class of indoor airplanes.
Posts: 0
Topics: 0
Science Olympiad
Much activity in this beginner, education level class. Add what you can.
Posts: 0
Topics: 0
Stick models and sport designs
Anything that is a fun model that does not fit in any other topic.
Posts: 49
Topics: 6
Last post: May 11, 2026, 01:44 AM Re: Pussycat by lincoln
General Discussion
Any topic that is outdoor free flight in general that won't fit in the other categories.
Posts: 18
Topics: 2
Last post: Apr 03, 2026, 05:07 AM Re: Building a Comet 54"... by randoloid
Hand/Catapult Launched Gliders
Hand or Catapult Launched Gliders, designs, builds, ideas and techniques.
Posts: 16
Topics: 1
Last post: Feb 07, 2026, 08:07 AM Re: SPARROW BEGINNER'S C... by OZPAF
Towline Gliders
F1A, Nordic, Towline, Vintage towline. Slope and Vintage and A1 or A2.
Posts: 10
Topics: 2
Last post: Jan 26, 2026, 08:27 PM MYSTERY MAN CONVERSION T... by Lastwoodsman
P-30 Class Sport and Competition
Airplanes that meet the P-30 Rules for sport or competition.
Posts: 46
Topics: 6
Last post: Mar 27, 2026, 03:21 AM Re: Multi-Function P-30 ... by calgoddard
Rubber
FAI, F1B Wakefield, F1G Coupe, Open Rubber, Small Rubber, Large Rubber, Mulvihill, Unlimited Rubber etc.
Posts: 19
Topics: 3
Electric Power
Any designs that are electric sporting new technologies in this power source.
Posts: 2
Topics: 1
Last post: Jan 31, 2026, 03:27 PM Re: Reduced size Korker by pedwards2932
CO2 Power
F1K and other non-scale models, plus CO2 motors
Posts: 115
Topics: 13
Last post: Mar 26, 2026, 01:44 AM Sodastream CO2 bottle no... by Nigel_M
Embryo Endurance Outdoor
Embryo for outdoor flying, builds, details and topics for discussion.
Posts: 0
Topics: 0
Jetex or Rapier
Jetex and Rapier reaction motor power and jet like models both scale and sport designs.
Posts: 0
Topics: 0
Old Time Rubber
Vintage, Wakefield, Sport, Large, Small. Designs from the 50's and earlier.
Posts: 50
Topics: 5
Last post: Apr 08, 2026, 05:52 PM Re: Jimmie Allen "Yellow... by dputt7
Outdoor Sport Models
Designs that are sport airplanes that look good but do not fit into any scale category.
Posts: 14
Topics: 2
Last post: Today at 04:40 AM Re: American Jet Hustler by OZPAF
General Discussion
This Board is for all posts that relate to CL topics that don't fit in any of the model specific categories.
Posts: 0
Topics: 0
Carrier
Post topics about Control Line Carrier, all classes, information and ideas. Perhaps a good build presentation.
Posts: 0
Topics: 0
Racing
The current state of racing in general which includes all classes other than Mouse Racing.
Posts: 0
Topics: 0
Sport
Non competition, Control Line Sport airplanes that are fun and make us all just smile a mile wide when we fly them.
Posts: 19
Topics: 4
Last post: Apr 24, 2026, 06:01 PM Re: Sterling Ringmaster ... by Konrad
Trainers
Any Control Line Stunters, designs and projects. Show off your machines, the finishes and the hardware. Talk about engines and flight trim. All topics relating to these great airplanes is encouraged.
Posts: 0
Topics: 0
RC Scale, small models only, indoor or outdoor
Small light R/C scale models, mainly Stick & Tissue but foam also welcome. As long as it is self-made, scale and small. Kit conversions are fine. But NO ARF or RTF models, plenty of other places for that.
Posts: 138
Topics: 4
Last post: Apr 26, 2026, 02:22 AM Re: Sopwith Batboat by lincoln
RC Vintage Free Flight
Vintage design models, either converted to RC or flown with RC assist due to space availability.
Posts: 47
Topics: 3
Last post: Apr 28, 2026, 09:56 PM Re: Sparky 2X Speed 400 by Konrad
Commercial sites
Related commercial sites, even run by members, always relevant to our type of aeromodelling
Posts: 6
Topics: 5
Last post: Apr 27, 2026, 03:46 AM Re: DPCM / Aerowerkes by lincoln
Related links non commercial
Websites of interest to our kind of aeromodelling
Posts: 10
Topics: 8
Last post: Feb 21, 2026, 03:46 PM Re: Flying Aces Club New... by lincoln
Buy / Sell / Trade
A board for small classified ads. Please read the rules in the first post prior to posting.
Posts: 1
Topics: 1
Last post: Feb 02, 2026, 11:26 PM Some rules... by g_kandylakis
3,604 Posts in 319 Topics by 300 Members - Latest Member: kittyhawk
Latest Post: "Re: BEAVER DH C2 no 2 ..." (Today at 08:10 AM)
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