|
Hummel Bird Materials List
Note: This list is for info only, there may be some
discrepancies depending on which set of plans are used.
2024-T3 Aluminum / Sheet Metal:
(2) 48 x 144" sheets .016 (skins,
ribs, T/D)
(1) 48 x 72" sheet .016 (wingtip
extensions)
(3) 48 x 144" sheets .020 (skins,
ribs)
(1) 48 x 72" sheet .025 (skins,
ribs)
(1) 48 x 144" sheet .040
(bulkheads, spar webs, etc)
Other Aluminum:
(84') 1½" x 1½" x 1/8" angle
6061-T6 (spar caps, side rails)
(8') 1½" x 1½" x 1/8" angle
6061-T6 (firewall backup, misc. structure)
(24') ½" x ½" x .065" square
tubing 6061-T6 or 6063-T6 (W/S & T/D bows)
(12') ¾" x .049" tubing 6061-T6
(push rods)
(12') ½" x .035 tubing 6061-T6
(push rods)
(3') 5/8" x .049" tubing 6061-T6
(push rod)
(3') ½" x .049" tubing 6061-T6
(push rod)
(1) 12" x 6" x 1/8" plate 6061-T6
(bulkhead "E" reinforcement)
(1) 12' x 1½" x 1/8" bar 6061-T6
(wing panel, spars, spar att.)
Steel:
(2') 1½" x .058" tubing 4130N
(4') 1 3/8" x .058 tubing 4130N
(2') 1¼" x .058" tube (req'd only
for mail gear suspension)
(1') 7/8" x .058" tubing 4130N
(12') ¾" x .035" tubing 4130N
(1') 9/16" x .058" tubing 4130N
(2') ¾" x .090" tubing 4130N
(axles)
(2') ½" x .035" tubing 4130N
1' x 1' x .125 plate 4130N
1' x 2' x .090 plate 4130N
1' x 2' x .065 plate 4130N
2' x 2' x .020" stainless steel
or galvanized (for bulkhead "A", galv. is cheaper and easier to work with)
For Trigear only:
(1') 1½" x .058" tube
(2') 1 3/8" x .058" tube
(4') 1" x .065" tube
(1') 5/8" x .090" tube
Hinges:
(10 pc) 6" long, 1½" wide,
extruded aluminum MS20001-P4 (ailerons & elevators)
(1 pc) 14" long, 1½" wide,
extruded aluminum (canopy)
Rod End Bearings:
(14) ¼" bore, 1/4-28shank
Heim
HM-4M
(4) ¼" bore, 1/4-28shank
Heim
HM-4M (rudder pedal option)
For Trigear only:
(3) ¼" bore, 1/4-28shank
Heim
HM-4M
NYLON BEARINGS
8 - 3/16" bore with
flange; Boston Gear, cat.# NF35-2 1/2
2 - 1/4" bore with
flange; Boston Gear, cat.# NF46-3
ENGINE CONTROLS
-
Throttle: Push-pull
type with friction lock - Cessna 15 type
-
Carb heat: Automotive
choke cable
-
Mixture: Vernier type
- Cessna 150
-
Magneto kill switch:
Heavy duty toggle switch - contacts close to stop engine
INSTRUMENTS
-
Air
speed 0-140 or 0-160 MPH
-
Sensitive altimeter
-
Aircraft compass
-
Engine
oil pressure - Automotive, mechanical type
-
Engine oil temperature
- Auto coolant temp, mechanical type
-
Tachometer: 0-3500 or
0-5000 RPM electric type powered from magneto.
PROP SPINNER
10" diameter complete
with bulkhead and backplate; available from: Great Plains
Aircraft.
SEAT BELT
Aircraft shoulder
harness
WHEELS
11" overall diameter
complete with 5” aluminum wheels mechanical brakes and tires and tubes
listed below.
For Trigear only:
(1) additional wheel
Bolts (includes extra for trigear):
|
QTY |
SIZE |
QTY |
SIZE |
|
18 |
AN3-4A |
2 |
AN4-4A |
|
14 |
AN3-5A |
9 |
AN4-5A |
|
7 |
AN3-6A |
8 |
AN4-6A |
|
10 |
AN3-7A |
17 |
AN4-7A |
|
9 |
AN3-10A |
2 |
AN4-H7 |
|
6 |
AN3-11A |
7 |
AN4-10A |
|
7 |
AN3-12A |
2 |
AN4-10 |
|
4 |
AN3-13A |
22 |
AN4-11A |
|
1 |
AN3-14A |
4 |
AN4-12A |
|
1 |
AN3-15A |
2 |
AN4-13A |
|
3 |
AN3-16A |
2 |
AN4-14A |
|
1 |
AN3-17A |
2 |
AN4-15A |
|
1 |
AN3-21A |
2 |
AN4-16A |
|
1 |
AN3-22A |
4 |
AN4-17A |
|
2 |
AN3-60A |
2 |
AN4-20A |
|
|
|
2 |
AN2-25A |
|
1 |
AN5-10A tail
spring |
|
|
|
|
|
4 |
AN6-26 eng mount |
|
|
|
2 |
AN6-35A lndg gear |
|
4 |
AN8-13 wing attach |
4 |
AN6-42 (hole in
shank) |
- Screws:
Qty- 100, AN526-632 (6-32, 3/8" long)
|
- Nuts: |
|
|
QTY |
SIZE |
|
90 |
AN365-1032 (3/16"
Self locking) |
|
110 |
AN365-428 (1/4"
Self locking) |
|
2 |
AN310-428 (1/4"
Castle Nut ) |
|
2 |
AN365-624 (3/8"
Self locking) |
|
4 |
AN310-624 (3/8"
Castle ) |
|
4 |
AN310-820 (1/2"
Castle ) |
|
2 |
AN310-1018 (5/8"
Castle ) |
|
- Washers: |
|
- Nutplates: |
|
QTY |
SIZE |
|
QTY |
SIZE |
|
100 |
AN960-10 (3/16) |
|
3 |
AN366F-1032 (3/16”) |
|
100 |
AN960-416 (1/4") |
|
16 |
AN366F-428 (1/4") |
|
10 |
AN960-616 (3/8") |
|
1 |
AN366F-524 (5/16") |
|
4 |
AN960-816 (1/2") |
|
50 |
#6 Two-lug fibrelok
for 6-32 |
|
|
|
|
|
screws -- buy from
Airparts |
|
-SOLID RIVETS
(to be used
instead of pull-rivets) |
|
QTY |
SIZE |
QTY |
SIZE |
|
2 oz |
AN470AD4-4 |
2 oz |
AN426AD4-4 |
|
1 oz |
AN470AD4-5 |
1 oz |
AN426AD4-5 |
|
4 oz |
AN470AD4-6 |
4 oz |
AN426AD4-6 |
|
2 oz |
AN470AD4-7 |
1 oz |
AN426AD4-7 |
|
9 oz |
AN470AD4-8 |
4 oz |
AN426AD4-8 |
|
1 oz |
AN470AD4-9 |
|
|
|
3 oz |
AN426AD3-4 (for wing
& tail skins - optional) |
|
|
PULL RIVETS
For those of you who do
not wish to use the solid (bucked) rivets, a quantity of 4000 Avex
#1604-0412 and 300 Avex #1661-0414 will be needed.
For those hardy souls
who decide to use as many bucked rivets as possible, you will still need
about 1000 Avex #1604-0412.
SUSPENSION SPRINGS
Note: If you opt for the
suspension-type gear, you'll need 2 for the taildragger or 3 for the trigear.
These springs are Die (as in "tool and die") springs, 1 1/4" OD, 4 1/2" free
length. Spring constant = 160 lbs. per inch. They are blue in color and
are made by PRODUCTO, cat # MP-59. Check your yellow pages for a local
supplier or go to a tool and die maker where you may be able to get used
springs for nothing. By no means are you limited to this type of spring
since valve springs for a diesel engine have even been used. Whatever
spring you decide upon, check it's spring constant by compressing it with a
known weight and measuring the deflection of the spring.
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